WO2000031376A2 - Method and system for accessing subterranean deposits from the surface - Google Patents
Method and system for accessing subterranean deposits from the surface Download PDFInfo
- Publication number
- WO2000031376A2 WO2000031376A2 PCT/US1999/027494 US9927494W WO0031376A2 WO 2000031376 A2 WO2000031376 A2 WO 2000031376A2 US 9927494 W US9927494 W US 9927494W WO 0031376 A2 WO0031376 A2 WO 0031376A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- well bore
- cavity
- drilling
- well
- subterranean
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000003245 coal Substances 0.000 claims description 140
- 238000005553 drilling Methods 0.000 claims description 102
- 239000012530 fluid Substances 0.000 claims description 47
- 238000005065 mining Methods 0.000 claims description 38
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 32
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 238000005086 pumping Methods 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 12
- 230000002706 hydrostatic effect Effects 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims 19
- 238000004891 communication Methods 0.000 claims 2
- 239000003657 drainage water Substances 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 abstract description 5
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 description 20
- 238000005755 formation reaction Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 11
- 230000008901 benefit Effects 0.000 description 8
- 239000006260 foam Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/13—Lifting well fluids specially adapted to dewatering of wells of gas producing reservoirs, e.g. methane producing coal beds
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimizing the spacing of wells
- E21B43/305—Specific pattern of wells, e.g. optimizing the spacing of wells comprising at least one inclined or horizontal well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Definitions
- the present invention relates generally to the recovery of subterranean deposits, and more particularly to a method and system for accessing subterranean deposits from the surface.
- coal deposits- are not amendable to pressure fracturing and other methods often used for increasing methane gas production from rock formations.
- pressure fracturing and other methods often used for increasing methane gas production from rock formations.
- coal seams are often associated with subterranean water, which must be drained from the coal seam in order to produce the methane.
- a further problem for surface production of gas from coal seams is the difficulty presented by under balanced drilling conditions caused by the porousness of the coal seam.
- drilling fluid is used to remove cuttings from the well bore to the surface.
- the drilling fluid exerts a hydrostatic pressure on the formation which, if it exceeds the hydrostatic pressure of the formation, can result in a loss of drilling fluid into the formation. This results in entrainment of drilling finds in the formation, which tends to plug the pores, cracks, and fractures that are needed to produce the gas .
- the present invention provides an improved method and system for accessing subterranean deposits from the surface that substantially eliminates or reduces the disadvantages and problems associated with previous systems and methods.
- the present invention provides an articulated well with a drainage pattern that intersects a horizontal cavity well.
- the drainage patterns provide access to a large subterranean area from the surface while the vertical cavity well allows entrained water, hydrocarbons, and other deposits to be efficiently removed and/or produced.
- a method for accessing a subterranean zone from the surface includes drilling a substantially vertical well bore from the surface to the subterranean zone.
- An articulated well bore is drilled from the surface to the subterranean zone.
- the articulated well bore is horizontally offset from the substantially vertical well bore at the surface and intersects the substantially vertical well bore at a junction proximate to the subterranean zone.
- a substantially horizontal drainage pattern is drilled through the articulated well bore from the junction into the subterranean zone.
- the substantially horizontal drainage pattern may comprise a pinnate pattern including a substantially horizontal diagonal well bore extending from the substantially vertical well bore that defines a first end of an area covered by the drainage pattern to a distant end of the area.
- a first of substantially horizontal lateral well bores extend in space relation to each other from the diagonal well bore to the periphery of the area on a first side of the diagonal well bore.
- a second set of substantially horizontal lateral well bores extend in space relation to each other from the diagonal well bore to the periphery of the area on a second, opposite side of the diagonal .
- a method for preparing a subterranean zone for mining uses the substantially vertical and articulated well bores and the drainage pattern. Water is drained from the subterranean zone through the drainage pattern to the junction of the substantially vertical well bore. Water is pumped from the junction to the surface through the substantially vertical well bore. Gas is produced from the subterranean zone through at least one of the substantially vertical and articulated well bores. After degasification has been completed, the subterranean zone may be further prepared by pumping water and other additives into the zone through the drainage pattern.
- a pump positioning device is provided to accurately position a downhole pump in a cavity of a well bore .
- Technical advantages of the present invention include providing an improved method and system for accessing subterranean deposits from the surface.
- a horizontal drainage pattern is drilled in a target zone from an articulated surface well to provide access to the zone from the surface.
- the drainage pattern intersected by a vertical cavity well from which entrained water, hydrocarbons, and other fluids drained from the zone can be efficiently removed and/or produced by a rod pumping unit.
- gas, oil, and other fluids can be efficiently produced at the surface from a low pressure or low porosity formation .
- Another technical advantage of the present invention includes providing an improved method and system for drilling into low-pressure reservoirs.
- a downhole pump or gas lift is used to lighten hydrostatic pressure exerted by drilling fluids used to remove cuttings during drilling operations.
- reservoirs may be drilled at ultra-low pressures without loss of drilling fluids into the formation and plugging of the formation.
- Yet another technical advantage of the present invention includes providing an improved horizontal drainage pattern for accessing a subterranean zone.
- a pinnate structure with a main diagonal and opposed laterals is used to maximize access to a subterranean zone from a single vertical well bore. Length of the laterals is maximized proximate to the vertical well bore and decreased toward the end of the main diagonal to provide uniform access to a quadrilateral or other grid area. This allows the drainage pattern to be aligned with longwall panels and other subsurface structures for degasification of a mine coal seam or other deposit.
- Still another technical advantage of the present invention includes providing an improved method and system for preparing a coal seam or other subterranean deposit for mining.
- surface wells are used to degasify a coal seam ahead of mining operations. This reduces underground equipment and activities and increases the time provided to degasify the seam which minimizes shutdowns due to high gas content.
- water and additives may be pumped into the degasified coal seam prior to mining operations to minimize dust and other hazardous conditions, to improve efficiency of the mining process, and to improve the quality of the coal product.
- Still another technical advantage of the present invention includes providing an improved method and system for producing methane gas from a mined coal seam.
- well bores used to initially degasify a coal seam prior to mining operations may be reused to collect gob gas from the seam after mining operation.
- costs associated with the collection of gob gas are minimized to facilitate or make feasible the collection of gob gas from previously mined seams .
- Still another technical advantage of the present invention includes providing a positioning device for automatically positioning down-hole pumps and other equipment in a cavity.
- a rotatable cavity positioning device is configured to retract for transport in a well bore and to extend within a down-hole cavity to optimally position the equipment within the cavity. This allows down-hole equipment to be easily positioned and secured within the cavity.
- FIGURE 1 is a cross-sectional diagram illustrating formation of a horizontal drainage pattern in a subterranean zone through an articulated surface well intersecting a vertical cavity well in accordance with one embodiment of the present invention
- FIGURE 2 is a cross-sectional diagram illustrating formation of the horizontal drainage pattern in the subterranean zone through the articulated surface well intersecting the vertical cavity well in accordance with another embodiment of the present invention
- FIGURE 3 is a cross-sectional diagram illustrating production of fluids from a horizontal draining pattern in a subterranean zone through a vertical well bore in accordance with one embodiment of the present invention
- FIGURE 4 is a top plan diagram illustrating a pinnate drainage pattern for accessing deposits in a subterranean zone in accordance with one embodiment of the' present invention
- FIGURE 5 is a top plan diagram illustrating a pinnate drainage pattern for accessing deposits in a subterranean zone in accordance with another embodiment of the present invention
- FIGURE 6 is a top plan diagram illustrating a quadrilateral pinnate drainage pattern for accessing deposits in a subterranean zone in accordance with still another embodiment of the present invention
- FIGURE 7 is a top plan diagram illustrating the alignment of pinnate drainage patterns within panels of a coal seam for degasifying and preparing the coal seam for mining operations in accordance with one embodiment of the present invention
- FIGURE 8 is a flow diagram illustrating a method for preparing a coal seam for mining operations in accordance with one embodiment of the present invention
- FIGURES 9A-C are cross-sectional diagrams illustrating a cavity well positioning tool in accordance with one embodiment of the present invention.
- FIGURE 1 illustrates a cavity and articulated well combination for accessing a subterranean zone from the surface in accordance with one embodiment of the present invention.
- the subterranean zone is a coal seam. It will be understood that other low pressure, ultra-low pressure, and low porosity subterranean zones can be similarly accessed using the dual well system of the present invention to remove and/or produce water, hydrocarbons and other fluids in the zone and to treat minerals in the zone prior to mining operations .
- a substantially vertical well bore 12 extends from the surface 14 to a target coal seam 15.
- the substantially vertical well bore 12 intersects, penetrates and continues below the coal seam 15.
- the substantially vertical well bore is lined with a suitable well casing 16 that terminates at or above the level of the coal seam 15.
- the substantially vertical well bore 12 is logged either during or after drilling in order to locate the exact vertical depth of the coal seam 15. As a result, the coal seam is not missed in subsequent drilling operations and techniques used to locate the seam 15 while drilling need not be employed.
- An enlarged diameter cavity 20 is formed in the substantially vertical well bore 12 at the level of the coal seam 15. As described in more detail below, the enlarged diameter cavity 20 provides a junction for intersection of the substantially vertical well bore by articulated well bore used to form a substantially horizontal drainage pattern in the coal seam 15. The enlarged diameter cavity 20 also provides a collection point for fluids drained from the coal seam 15 during production operations .
- the enlarged diameter cavity 20 has a radius of approximately eight feet and a vertical dimension which equals or exceeds the vertical dimension of the coal seam 15.
- the enlarged diameter cavity 20 is formed using suitable under-reaming techniques and equipment.
- a vertical portion of the substantially vertical well bore 12 continues below the enlarged diameter cavity 20 to form a sump 22 for the cavity 20.
- An articulated well bore 30 extends from the surface 14 to the enlarged diameter cavity 20 of the substantially vertical well bore 12.
- the articulated well bore 30 includes a substantially vertical portion 32, a substantially horizontal portion 34, and a curved or radiused portion 36 interconnecting the vertical and horizontal portions 32 and 34.
- the horizontal portion 34 lies substantially in the horizontal plane of the coal seam 15 and intersects the large diameter cavity 20 of the substantially vertical well bore 12.
- the articulated well bore 30 is offset a sufficient distance from the substantially vertical well bore 12 at the surface 14 to permit the large radius curved section 36 and any desired horizontal section 34 to be drilled before intersecting the enlarged diameter cavity 20.
- the articulated well bore 30 is offset a distance of about 300 feet from the substantially vertical well bore 12. This spacing minimizes the angle of the curved portion 36 to reduce friction in the bore 30 during drilling operations. As a result, reach of the articulated drill string drilled through the articulated well bore 30 is maximized.
- the articulated well bore 30 is drilled using articulated drill string 40 that includes a suitable down- hole motor and bit 42.
- a measurement while drilling (MWD) device 44 is included in the articulated drill string 40 for controlling the orientation and direction of the well bore drilled by the motor and bit 42.
- the substantially vertical portion 32 of the articulated well bore 30 is lined with a suitable casing 38.
- the substantially horizontal drainage pattern 50 and other such well bores include sloped, undulating, or other inclinations of the coal seam 15 or other subterranean zone.
- gamma ray logging tools and conventional measurement while drilling devices may be employed to control and direct the orientation of the drill bit to retain the drainage pattern 50 within the confines of the coal seam 15 and to provide substantially uniform coverage of a desired area within the coal seam 15. Further information regarding the drainage pattern is described in more detail below in connection with FIGURES 4-7.
- drilling fluid or "mud” is pumped down the articulated drill string 40 and circulated out of the drill string 40 in the vicinity of the bit 42, where it is used to scour the formation and to remove formation cuttings .
- the cuttings are then entrained in the drilling fluid which circulates up through the annulus between the drill string 40 and the well bore walls until it reaches the surface 14, where the cuttings are removed from the drilling fluid and the fluid is then recirculated.
- This conventional drilling operation produces a standard column of drilling fluid having a vertical height equal to the depth of the well bore 30 and produces a hydrostatic pressure on the well bore corresponding to the well bore depth.
- coal seams tend to be porous and fractured, they may be unable to sustain such hydrostatic pressure, even if formation water is also present in the coal seam 15. Accordingly, if the full hydrostatic pressure is allowed to act on the coal seam 15, the result may be loss of drilling fluid and entrained cuttings into the formation. Such a circumstance is referred to as an "over balanced" drilling operation in which the hydrostatic fluid pressure in the well bore exceeds the ability of the formation to withstand the pressure. Loss of drilling fluids in cuttings into the formation not only is expensive in terms of the lost drilling fluids, which must be made up, but it tends to plug the pores in the coal seam 15, which are needed to drain the coal seam of gas and water.
- air compressors 60 are provided to circulate compressed air down the substantially vertical well bore 12 and back up through the articulated well bore 30.
- the circulated air will admix with the drilling fluids in the annulus around the articulated drill string 40 and create bubbles throughout the column of drilling fluid. This has the effective of lightening the hydrostatic pressure of the drilling fluid and reducing the down-hole pressure sufficiently that drilling conditions do not become over balanced. Aeration of the drilling fluid reduces down-hole pressure to approximately 150-200 pounds per square inch (psi) .
- low pressure coal seams and other subterranean zones can be drilling without substantial loss of drilling fluid and contamination of the zone by the drilling fluid.
- Foam which may be compressed air mixed with water, may also be circulated down through the articulated drill string 40 along with the drilling mud in order to aerate the drilling fluid in the annulus as the articulated well bore 30 is being drilled and, if desired, as the drainage pattern 50 is being drilled. Drilling of the drainage pattern 50 with the use of an air hammer bit or an air- powered down-hole motor will also supply compressed air or foam to the drilling fluid. In this case, the compressed air or foam which is used to power the bit or down-hole motor exits the vicinity of the drill bit 42. However, the larger volume of air which can be circulated down the substantially vertical well bore 12, permits greater aeration of the drilling fluid than generally is possible by air supplied through the articulated drill string 40.
- FIGURE 2 illustrates method and system for drilling the drainage pattern 50 in the coal seam 15 in accordance with another embodiment of the present invention.
- the substantially vertical well bore 12, enlarged diameter cavity 20 and articulated well bore 32 are positioned and formed as previously described in connection with the FIGURE 1.
- a pump 52 is installed in the enlarged diameter cavity 20 to pump drilling fluid and cuttings to the surface 14 through the substantially vertical well bore 12. This eliminates the friction of air and fluid returning up the articulated well bore 30 and reduces down-hole pressure to nearly zero. Accordingly, coal seams and other subterranean zones having ultra low pressures below 150 psi can be accessed from the surface. Additionally, the risk of combining air and methane in the well is eliminated.
- FIGURE 3 illustrates production of fluids from the horizontal drainage pattern 50 in the coal seam 15 in accordance with one embodiment of the present invention.
- the articulated drill string 40 is removed from the articulated well bore 30 and the articulated well bore is capped.
- the articulated well 30 may be plugged in the substantially horizontal portion 34. Otherwise, the articulated well 30 may be left unplugged.
- a down hole pump 80 is disposed in the substantially vertical well bore 12 in the enlarged diameter cavity 22.
- the enlarged cavity 20 provides a reservoir for accumulated fluids allowing intermittent pumping without adverse effects of a hydrostatic head caused by accumulated fluids in the well bore.
- the down hole pump 140 is connected to the surface 14 via a tubing string 82 and may be powered by sucker rods 84 extending down through the well bore 12 of the tubing.
- the sucker rods 84 are reciprocated by a suitable surface mounted apparatus, such as a powered walking beam 86 to operate the down hole pump 80.
- the down hole pump 80 is used to remove water and entrained coal fines from the coal seam 15 via the drainage pattern 50. Once the water is removed to the surface, it may be treated for separation of methane which may be dissolved in the water and for removal of entrained fines .
- pure coal seam gas may be allowed to flow to the surface 14 through the annulus of the substantially vertical well bore 12 around the tubing string 82 and removed via piping attached to a wellhead apparatus.
- the methane is treated, compressed and pumped through a pipeline for use as a fuel in a conventional manner.
- the down hole pump 80 may be operated continuously or as needed to remove water drained from the coal seam 15 into the enlarged diameter cavity 22.
- FIGURES 4-7 illustrate substantially horizontal drainage patterns 50 for accessing the coal seam 15 or other subterranean zone in accordance with one embodiment of the present invention.
- the drainage patterns comprise pinnate patterns that have a central diagonal with generally symmetrically arranged and appropriately spaced laterals extending from each side of the diagonal.
- the pinnate pattern approximates the pattern of veins in a leaf or the design of a feather in that it has similar, substantially parallel, auxiliary drainage bores arranged in substantially equal and parallel spacing or opposite sides of an axis.
- the pinnate drainage pattern with its central bore and generally symmetrically arranged and appropriately spaced auxiliary drainage bores on each side provides a uniform pattern for draining fluids from a coal seam or other subterranean formation.
- the pinnate pattern provides substantially uniform coverage of a square, other quadrilateral, or grid area and may be aligned with longwall mining panels for preparing the coal seam 15 for mining operations. It will be understood that other suitable drainage patterns may be used in accordance with the present invention.
- the pinnate and other suitable drainage patterns drilled from the surface provide surface access to subterranean formations .
- the drainage pattern may be used to uniformly remove and/or insert fluids or otherwise manipulate a subterranean deposit.
- the drainage pattern may be used initiating in-situ burns, "huff-puff" steam operations for heavy crude oil, and the removal of hydrocarbons from low porosity reservoirs .
- FIGURE 4 illustrates a pinnate drainage pattern 100 in accordance with one embodiment of the present invention.
- the pinnate drainage pattern 100 provides access to a substantially square area 102 of a subterranean zone.
- a number of the pinnate patterns 60 may be used together to provide uniform access to a large subterranean region.
- the enlarged diameter cavity 20 defines a first corner of the area 102.
- the pinnate pattern 100 includes a substantially horizontal main well bore 104 extending diagonally across the area 102 to a distant corner 106 of the area 102.
- the substantially vertical and articulated well bores 12 and 30 are positioned over the area 102 such that the diagonal bore 104 is drilled up the slope of the coal seam 15. This will facilitate collection of water, gas from the area 102.
- the diagonal bore 104 is drilled using the articulated drill string 40 and extends from the enlarged cavity 20 in alignment with the articulated well bore 30.
- a plurality of lateral well bores 110 extend from the opposites sides of diagonal bore 104 to a periphery 112 of the area 102.
- the lateral bores 122 may mirror each other on opposite sides of the diagonal bore 104 or may be offset from each other along the diagonal bore 104.
- Each of the lateral bores 110 includes a radius curving portion 114 coming off of the diagonal bore 104 and an elongated portion 116 formed after the curved portion 114 has reached a desired orientation.
- pairs of lateral bores 110 are substantially evenly spaced on each side of the diagonal bore 104 and extend from the diagonal 64 at an angle of approximately 45 degrees.
- the lateral bores 110 shorten in length based on progression away from the enlarged diameter cavity 20 in order to facilitate drilling of the lateral bores 110.
- the pinnate drainage pattern 100 using a single diagonal bore 104 and five pairs of lateral bores 110 may drain a coal seam area of approximately 150 acres in size. Where a smaller area is to be drained, or where the coal seam has a different shape, such as a long, narrow shape or due to surface or subterranean topography, alternate pinnate drainage patterns may be employed by varying the angle of the lateral bores 110 to the diagonal bore 104 and the orientation of the lateral bores 110. Alternatively, lateral bores 120 can be drilled from only one side of the diagonal bore 104 to form a one-half pinnate pattern. The diagonal bore 104 and the lateral bores 110 are formed by drilling through the enlarged diameter cavity 20 using the articulated drill string 40 and appropriate horizontal drilling apparatus.
- gamma ray logging tools and conventional measurement while drilling technologies may be employed to control the direction and orientation of the drill bit so as to retain the drainage pattern within the confines of the coal seam 15 and to maintain proper spacing and orientation of the diagonal and lateral bores 104 and 110.
- the diagonal bore 104 is drilled with an incline at each of a plurality of lateral kick-off points 108. After the diagonal 104 is complete, the articulated drill string 40 is backed up to each successive lateral point 108 from which a lateral bore 110 is drilled on each side of the diagonal 104.
- the pinnate drainage pattern 100 may be otherwise suitably formed in accordance with the present invention .
- FIGURE 5 illustrates a pinnate drainage pattern 120 in accordance with another embodiment of the present invention. In this embodiment, the pinnate drainage pattern 120 drains a substantially rectangular area 122 of the coal seam 15.
- the pinnate drainage pattern 120 includes a main diagonal bore 124 and a plurality of lateral bores 126 that are formed as described in connection with diagonal and lateral bores 104 and 110 of FIGURE 4.
- the lateral bores 126 on a first side of the diagonal 124 include a shallow angle while the lateral bores 126 on the opposite side of the diagonal 124 include a steeper angle to together provide uniform coverage of the area 12.
- FIGURE 6 illustrates a quadrilateral pinnate drainage pattern 140 in accordance with another embodiment of the present invention.
- the quadrilateral drainage pattern 140 includes four discrete pinnate drainage patterns 100 each draining a quadrant of a region 142 covered by the pinnate drainage pattern 140.
- Each of the pinnate drainage patterns 100 includes a diagonal well bore 104 and a plurality of lateral well bores 110 extending from the diagonal well bore 104.
- each of the diagonal and lateral bores 104 and 110 are drilled from a common articulated well bore 141. This allows tighter spacing of the surface production equipment, wider coverage of a drainage pattern and reduces drilling equipment and operations.
- FIGURE 7 illustrates the alignment of pinnate drainage patterns 100 with subterranean structures of a coal seam for degasifying and preparing the coal seam for mining operations in accordance with one embodiment of the present invention.
- the coal seam 15 is mined using a longwall process. It will be understood that the present invention can be used to degassify coal seams for other types of mining operations.
- coal panels 150 extend longitudinally from a longwall 152.
- each panel 150 is subsequently mined from a distant end toward the longwall 152 and the mine roof allowed to cave and fracture into the opening behind the mining process.
- the pinnate drainage patterns 100 Prior to mining of the panels 150, the pinnate drainage patterns 100 are drilled into the panels 150 from the surface to degasify the panels 150 well ahead of mining operations .
- Each of the pinnate drainage patterns 100 is aligned with the longwall 152 and panel 150 grid and covers portions of one or more panels 150. In this way, a region of a mine can be degasified from the surface based on subterranean structures and constraints.
- FIGURE 8 is a flow diagram illustrating a method for preparing the coal seam 15 for mining operations in accordance with one embodiment of the present invention.
- the method begins at step 160 in which areas to be drained and drainage patterns 50 for the areas are identified.
- the areas are aligned with the grid of a mining plan for the region.
- Pinnate structures 100, 120 and 140 may be used to provide optimized coverage for the region. It will be understood that other suitable patterns may be used to degasify the coal seam 15.
- the substantially vertical well 12 is drilled from the surface 14 through the coal seam 15.
- down hole logging equipment is utilized to exactly identify the location of the coal seam in the substantially well bore 12.
- the enlarged diameter cavity 22 is formed in the substantially vertical well bore 12 at the location of the coal seam 15.
- the enlarged diameter cavity 20 may be formed by under reaming and other conventional techniques .
- the articulated well bore 30 is drilled to intersect the enlarged diameter cavity 22.
- the main diagonal bore 104 for the pinnate drainage pattern 100 is drilled through the articulated well bore 30 into the coal seam 15.
- lateral bores 110 for the pinnate drainage pattern 100 are drilled at step 170.
- lateral kick-off points may be formed in the diagonal bore 104 during its formation to facilitate drilling of the lateral bores 110.
- the articulated well bore 30 is capped.
- the enlarged diagonal cavity 22 is cleaned in preparation for installation of downhole production equipment. The enlarged diameter cavity 22 may be cleaned by pumping compressed air down the substantially vertical well bore 12 or other suitable techniques .
- production equipment is installed in the substantially vertical well bore 12.
- the production equipment includes a sucker rod pump extending down into the cavity 22 for removing water from the coal seam 15. The removal of water will drop the pressure of the coal seam and allow methane gas to diffuse and be produced up the annulus of the substantially vertical well bore 12.
- step 178 water that drains from the drainage pattern 100 into the cavity 22 is pumped to the surface with the rod pumping unit. Water may be continuously or intermittently be pumped as needed to remove it from the cavity 22.
- step 180 methane gas diffused from the coal seam 15 is continuously collected at the surface 14.
- decisional step 182 it is determined whether the production of gas from the coal seam 15 is complete. In one embodiment, the production of gas may be complete after the cost of the collecting the gas exceeds the revenue generated by the well. In another embodiment, gas may continue to be produced from the well until a remaining level of gas in the coal seam 15 is below required levels for mining operations.
- step 182 If production of the gas is not complete, the No branch of decisional step 182 returns to steps 178 and 180 in which water and gas continue to be removed from the coal seam 15. Upon completion of production, the Yes branch of decisional step 182 leads to step 184 in which the production equipment is removed.
- decisional step 186 it is determined whether the coal seam 15 is to be further prepared for mining operations. If the coal seam 15 is to be further prepared for mining operations, the Yes branch of decisional step 186 leads to step 188 m which water and other additives may be injected back into the coal seam 15 to rehydrate the coal seam in order to minimize dust, to improve the efficiency of mining, and to improve the mined product.
- Step 188 and the No branch of decisional step 186 lead to step 190 m which the coal seam 15 is mined.
- the removal of the coal from the seam causes the mined roof to cave and fracture into the opening behind the mining process.
- the collapsed roof creates gob gas which may be collected at step 192 through the substantially vertical well bore 12. Accordingly, additional drilling operations are not required to recover gob gas from a mined coal seam.
- Step 192 leads to the end of the process by which a coal seam is efficiently degasified from the surface.
- the method provides a symbiotic relationship with the mine to remove unwanted gas prior to mining and to rehydrate the coal prior to the mining process.
- FIGURES 9A through 9C are diagrams illustrating deployment of a well cavity pump 200 in accordance with an embodiment of the present invention.
- well cavity pump 200 comprises a well bore portion 202 and a cavity positioning device 204.
- Well bore portion 202 comprises an inlet 206 for drawing and transferring well fluid contained within cavity 20 to a surface of vertical well bore 12.
- cavity positioning device 204 is rotatably coupled to well bore portion 202 to provide rotational movement of cavity positioning device 204 relative to well bore portion 202.
- a pin, shaft, or other suitable method or device may be used to rotatably couple cavity position device 204 to well bore portion 202 to provide pivotal movement of cavity positioning device 204 about an axis 208 relative to well bore portion 202.
- cavity positioning device 204 may be coupled to well bore portion 202 between an end 210 and an end 212 of cavity positioning device 204 such that both ends 210 and 212 may be rotatably manipulated relative to well bore portion 202.
- Cavity positioning device 204 also comprises a counter balance portion 214 to control a position of ends 210 and 212 relative to well bore portion 202 in a generally unsupported condition.
- cavity positioning device 204 is generally cantilevered about axis 208 relative to well bore portion 202.
- Counter balance portion 214 is disposed along cavity positioning device 204 between axis 208 and end 210 such that a weight or mass of counter balance portion 214 counter balances cavity positioning device 204 during deployment and withdrawal of well cavity pump 200 relative to vertical well bore 12 and cavity 20.
- cavity positioning device 204 is deployed into vertical well bore 12 having end 210 and counter balance portion 214 positioned in a generally retracted condition, thereby disposing end 210 and counter balance portion 214 adjacent well bore portion 202.
- a length of cavity positioning device 204 generally prevents rotational movement of cavity positioning device 204 relative to well bore portion 202.
- the mass of counter balance portion 214 may cause counter balance portion 214 and end 212 to be generally supported by contact with a vertical wall 218 of vertical well bore 12 as well cavity pump 200 travels downwardly within vertical well bore 12.
- counter balance portion 214 causes rotational or pivotal movement of cavity positioning device 204 relative to well bore portion 202 as cavity positioning device 204 transitions from vertical well bore 12 to cavity 20.
- counter balance portion 214 and end 212 become generally unsupported by vertical wall 218 of vertical well bore 12.
- counter balance portion 214 automatically causes rotational movement of cavity positioning device 204 relative to well bore portion 202.
- counter balance portion 214 generally causes end 210 to rotate or extend outwardly relative to vertical well bore 12 in the direction indicated generally by arrow 220.
- end 212 of cavity positioning device 204 extends or rotates outwardly relative to vertical well bore 12 in the direction indicated generally by arrow 222.
- the length of cavity positioning device 204 is configured such that ends 210 and 212 of cavity positioning device 204 become generally unsupported by vertical well bore 12 as cavity positioning device 204 transitions from vertical well bore 12 into cavity 20, thereby allowing counter balance portion 214 to cause rotational movement of end 212 outwardly relative to well bore portion 202 and beyond an annulus portion 224 of sump 22.
- counter balance portion 214 causes end 212 to rotate or extend outwardly in the direction indicated generally by arrow 222 such that continued downward travel of well cavity pump 200 results in contact of end 12 with a horizontal wall 226 of cavity 20.
- inlet 206 may be located at various positions along well bore portion 202 such that inlet 206 is disposed at the predefined location within cavity 20 as cavity positioning device 204 bottoms out within cavity 20. Therefore, inlet 206 may be accurately positioned within cavity 20 to substantially prevent drawing in debris or other material disposed within sump or rat hole 22 and to prevent gas interference caused by placement of the inlet 20 in the narrow well bore. Additionally, inlet 206 may be positioned within cavity 20 to maximize fluid withdrawal from cavity 20.
- upward travel of well cavity pump 200 generally results in releasing contact between counter balance portion 214 and end 212 with horizontal walls 230 and 226, respectively.
- the mass of cavity positioning device 204 disposed between end 212 and axis 208 generally causes cavity positioning device 204 to rotate in directions opposite the directions indicated generally by arrows 220 and 222 as illustrated FIGURE 9B.
- counter balance portion 214 cooperates with the mass of cavity positioning device 204 disposed between end 212 and axis 208 to generally align cavity positioning device 204 with vertical well bore 12.
- cavity positioning device 204 automatically becomes aligned with vertical well bore 12 as well cavity pump 200 is withdrawn from cavity 20. Additional upward travel of well cavity pump 200 then may be used to remove cavity positioning device 204 from cavity 20 and vertical well bore 12.
- the present invention provides greater reliability than prior systems and methods by positively locating inlet 206 of well cavity pump 200 at a predefined location within cavity 20. Additionally, well cavity pump 200 may be efficiently removed from cavity 20 without requiring additional unlocking or alignment tools to facilitate the withdrawal of well cavity pump 200 from cavity 20 and vertical well bore 12.
Abstract
Description
Claims
Priority Applications (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT99965010T ATE309449T1 (en) | 1998-11-20 | 1999-11-19 | METHOD AND APPARATUS FOR ACCESSING UNDERGROUND STORES FROM THE SURFACE |
PL99375239A PL193562B1 (en) | 1998-11-20 | 1999-11-19 | Underground drainage path for accessing the underground zone and the method for forming an underground drainage path for accessing the underground zone |
PL99375236A PL193560B1 (en) | 1998-11-20 | 1999-11-19 | Method and system for accessing subterranean deposits from the surface |
PL99348705A PL190694B1 (en) | 1998-11-20 | 1999-11-19 | Method and system for accessing subterranean deposits from the surface |
PL99375240A PL193557B1 (en) | 1998-11-20 | 1999-11-19 | System for obtaining access to underground zone |
NZ512303A NZ512303A (en) | 1998-11-20 | 1999-11-19 | Method and system for accessing subterranean deposits from the surface by forming a well bore pattern |
PL375238A PL192352B1 (en) | 1998-11-20 | 1999-11-19 | Method of mining from a thin bed of hard coal deposits |
EP99965010A EP1131535B1 (en) | 1998-11-20 | 1999-11-19 | Method and system for accessing subterranean deposits from the surface |
PL99375241A PL193558B1 (en) | 1998-11-20 | 1999-11-19 | Method of forming an underground drainage path for accessing the underground zone from the surface |
PL99375242A PL193559B1 (en) | 1998-11-20 | 1999-11-19 | Method of and system for obtaining access to underground zone |
PL99375237A PL193561B1 (en) | 1998-11-20 | 1999-11-19 | Method of winning gas from subterranean deposits and system therefor |
PL99375243A PL193555B1 (en) | 1998-11-20 | 1999-11-19 | Method for obtaining access to thin coal bed |
CA002350504A CA2350504C (en) | 1998-11-20 | 1999-11-19 | Method and system for accessing subterranean deposits from the surface |
DE69928280T DE69928280T2 (en) | 1998-11-20 | 1999-11-19 | METHOD AND DEVICE FOR ACCESSING SUB-ORIENTED STORAGE SITES FROM THE SURFACE |
AU31018/00A AU760896B2 (en) | 1998-11-20 | 1999-11-19 | Method and system for accessing subterranean deposits from the surface |
AU2003200203A AU2003200203B2 (en) | 1998-11-20 | 2003-01-22 | Method and system for accessing subterranean deposits from the surface |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/197,687 US6280000B1 (en) | 1998-11-20 | 1998-11-20 | Method for production of gas from a coal seam using intersecting well bores |
US09/197,687 | 1998-11-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000031376A2 true WO2000031376A2 (en) | 2000-06-02 |
WO2000031376A3 WO2000031376A3 (en) | 2001-01-04 |
Family
ID=22730357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/027494 WO2000031376A2 (en) | 1998-11-20 | 1999-11-19 | Method and system for accessing subterranean deposits from the surface |
Country Status (15)
Country | Link |
---|---|
US (12) | US6280000B1 (en) |
EP (4) | EP1619352B1 (en) |
CN (5) | CN101328791A (en) |
AT (4) | ATE334297T1 (en) |
AU (9) | AU760896B2 (en) |
CA (9) | CA2483023C (en) |
CZ (1) | CZ20011757A3 (en) |
DE (4) | DE69937976T2 (en) |
ES (3) | ES2271398T3 (en) |
ID (1) | ID30391A (en) |
NZ (3) | NZ527146A (en) |
PL (9) | PL193558B1 (en) |
RU (6) | RU2505657C2 (en) |
WO (1) | WO2000031376A2 (en) |
ZA (1) | ZA200103917B (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002029210A1 (en) * | 2000-10-02 | 2002-04-11 | Pompiliu Gheorghe Dinca | Draining network for producing oil |
WO2002059455A1 (en) * | 2001-01-24 | 2002-08-01 | Cdx Gas, L.L.C. | Method and system for enhanced access to a subterranean zone |
WO2002061233A1 (en) * | 2001-01-30 | 2002-08-08 | Cdx Gas, L.L.C. | Method and system for accessing subterranean zones from a limited surface area |
WO2002061238A1 (en) * | 2001-01-30 | 2002-08-08 | Cdx Gas, L.L.C. | Method and system for accessing a subterranean zone from a limited surface area |
US6681855B2 (en) * | 2001-10-19 | 2004-01-27 | Cdx Gas, L.L.C. | Method and system for management of by-products from subterranean zones |
US6708764B2 (en) * | 2002-07-12 | 2004-03-23 | Cdx Gas, L.L.C. | Undulating well bore |
US6725922B2 (en) * | 2002-07-12 | 2004-04-27 | Cdx Gas, Llc | Ramping well bores |
US6932168B2 (en) | 2003-05-15 | 2005-08-23 | Cnx Gas Company, Llc | Method for making a well for removing fluid from a desired subterranean formation |
CN100392209C (en) * | 2005-04-20 | 2008-06-04 | 太原理工大学 | Rock salt deposit horizontal chamber type oil-gas depot and its building method |
CN102086774A (en) * | 2011-01-17 | 2011-06-08 | 中联煤层气国家工程研究中心有限责任公司 | Drainage method of gas in coal bed |
CN101699033B (en) * | 2009-10-27 | 2011-12-21 | 山西焦煤集团有限责任公司 | Device for pumping and draining water from downward hole of coal bed |
CN102587981A (en) * | 2012-03-12 | 2012-07-18 | 中国石油大学(华东) | Underground salt cavern gas storage and building method thereof |
DE10320401B4 (en) * | 2003-05-06 | 2015-04-23 | Udo Adam | Process for mine gas production |
CN106930733A (en) * | 2017-05-10 | 2017-07-07 | 中国神华能源股份有限公司 | Coal bed gas group wells extraction system and method for construction |
RU2708743C1 (en) * | 2019-04-30 | 2019-12-11 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method of drilling offshoots from an openhole well horizontal part |
RU2709262C1 (en) * | 2019-08-30 | 2019-12-17 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method of drilling and development of offshoot from horizontal well (versions) |
RU2709263C1 (en) * | 2019-04-30 | 2019-12-17 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method of drilling and development of offshoots from horizontal well |
RU2771371C1 (en) * | 2021-08-23 | 2022-05-04 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Set of assemblies for increasing the filtration area of the bottomhole zone of an open horizontal well |
Families Citing this family (208)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6729394B1 (en) * | 1997-05-01 | 2004-05-04 | Bp Corporation North America Inc. | Method of producing a communicating horizontal well network |
US7025154B2 (en) * | 1998-11-20 | 2006-04-11 | Cdx Gas, Llc | Method and system for circulating fluid in a well system |
US8297377B2 (en) | 1998-11-20 | 2012-10-30 | Vitruvian Exploration, Llc | Method and system for accessing subterranean deposits from the surface and tools therefor |
US7073595B2 (en) * | 2002-09-12 | 2006-07-11 | Cdx Gas, Llc | Method and system for controlling pressure in a dual well system |
US20040035582A1 (en) * | 2002-08-22 | 2004-02-26 | Zupanick Joseph A. | System and method for subterranean access |
US8376052B2 (en) | 1998-11-20 | 2013-02-19 | Vitruvian Exploration, Llc | Method and system for surface production of gas from a subterranean zone |
US6988548B2 (en) * | 2002-10-03 | 2006-01-24 | Cdx Gas, Llc | Method and system for removing fluid from a subterranean zone using an enlarged cavity |
US7048049B2 (en) | 2001-10-30 | 2006-05-23 | Cdx Gas, Llc | Slant entry well system and method |
US6679322B1 (en) | 1998-11-20 | 2004-01-20 | Cdx Gas, Llc | Method and system for accessing subterranean deposits from the surface |
US6280000B1 (en) | 1998-11-20 | 2001-08-28 | Joseph A. Zupanick | Method for production of gas from a coal seam using intersecting well bores |
US6923275B2 (en) * | 2001-01-29 | 2005-08-02 | Robert Gardes | Multi seam coal bed/methane dewatering and depressurizing production system |
US7243738B2 (en) * | 2001-01-29 | 2007-07-17 | Robert Gardes | Multi seam coal bed/methane dewatering and depressurizing production system |
US6591903B2 (en) | 2001-12-06 | 2003-07-15 | Eog Resources Inc. | Method of recovery of hydrocarbons from low pressure formations |
US6679326B2 (en) * | 2002-01-15 | 2004-01-20 | Bohdan Zakiewicz | Pro-ecological mining system |
US6968893B2 (en) * | 2002-04-03 | 2005-11-29 | Target Drilling Inc. | Method and system for production of gas and water from a gas bearing strata during drilling and after drilling completion |
US6810960B2 (en) * | 2002-04-22 | 2004-11-02 | Weatherford/Lamb, Inc. | Methods for increasing production from a wellbore |
US7360595B2 (en) * | 2002-05-08 | 2008-04-22 | Cdx Gas, Llc | Method and system for underground treatment of materials |
US6991048B2 (en) * | 2002-07-12 | 2006-01-31 | Cdx Gas, Llc | Wellbore plug system and method |
US6991047B2 (en) * | 2002-07-12 | 2006-01-31 | Cdx Gas, Llc | Wellbore sealing system and method |
US7025137B2 (en) * | 2002-09-12 | 2006-04-11 | Cdx Gas, Llc | Three-dimensional well system for accessing subterranean zones |
US8333245B2 (en) | 2002-09-17 | 2012-12-18 | Vitruvian Exploration, Llc | Accelerated production of gas from a subterranean zone |
US7094811B2 (en) | 2002-10-03 | 2006-08-22 | Bayer Corporation | Energy absorbing flexible foams produced in part with a double metal cyanide catalyzed polyol |
US6953088B2 (en) * | 2002-12-23 | 2005-10-11 | Cdx Gas, Llc | Method and system for controlling the production rate of fluid from a subterranean zone to maintain production bore stability in the zone |
US7264048B2 (en) * | 2003-04-21 | 2007-09-04 | Cdx Gas, Llc | Slot cavity |
US7134494B2 (en) * | 2003-06-05 | 2006-11-14 | Cdx Gas, Llc | Method and system for recirculating fluid in a well system |
WO2005005763A2 (en) * | 2003-06-09 | 2005-01-20 | Precision Drilling Technology Services Group, Inc. | Method for drilling with improved fluid collection pattern |
AU2003244819A1 (en) * | 2003-06-30 | 2005-01-21 | Petroleo Brasileiro S A-Petrobras | Method for, and the construction of, a long-distance well for the production, transport, storage and exploitation of mineral layers and fluids |
US7073577B2 (en) * | 2003-08-29 | 2006-07-11 | Applied Geotech, Inc. | Array of wells with connected permeable zones for hydrocarbon recovery |
US7051809B2 (en) * | 2003-09-05 | 2006-05-30 | Conocophillips Company | Burn assisted fracturing of underground coal bed |
US7100687B2 (en) * | 2003-11-17 | 2006-09-05 | Cdx Gas, Llc | Multi-purpose well bores and method for accessing a subterranean zone from the surface |
US7163063B2 (en) * | 2003-11-26 | 2007-01-16 | Cdx Gas, Llc | Method and system for extraction of resources from a subterranean well bore |
US7419223B2 (en) * | 2003-11-26 | 2008-09-02 | Cdx Gas, Llc | System and method for enhancing permeability of a subterranean zone at a horizontal well bore |
US20060201714A1 (en) * | 2003-11-26 | 2006-09-14 | Seams Douglas P | Well bore cleaning |
US20060201715A1 (en) * | 2003-11-26 | 2006-09-14 | Seams Douglas P | Drilling normally to sub-normally pressured formations |
US7445045B2 (en) * | 2003-12-04 | 2008-11-04 | Halliburton Energy Services, Inc. | Method of optimizing production of gas from vertical wells in coal seams |
US7104320B2 (en) * | 2003-12-04 | 2006-09-12 | Halliburton Energy Services, Inc. | Method of optimizing production of gas from subterranean formations |
US7207395B2 (en) * | 2004-01-30 | 2007-04-24 | Cdx Gas, Llc | Method and system for testing a partially formed hydrocarbon well for evaluation and well planning refinement |
US7207390B1 (en) * | 2004-02-05 | 2007-04-24 | Cdx Gas, Llc | Method and system for lining multilateral wells |
US7222670B2 (en) * | 2004-02-27 | 2007-05-29 | Cdx Gas, Llc | System and method for multiple wells from a common surface location |
US20050241834A1 (en) * | 2004-05-03 | 2005-11-03 | Mcglothen Jody R | Tubing/casing connection for U-tube wells |
US7278497B2 (en) * | 2004-07-09 | 2007-10-09 | Weatherford/Lamb | Method for extracting coal bed methane with source fluid injection |
RU2007110806A (en) * | 2004-08-24 | 2008-10-10 | Кростек Менеджмент Корп. (Ca) | ROCKING PUMP DEVICE AND PUMPING METHOD |
US20050051326A1 (en) * | 2004-09-29 | 2005-03-10 | Toothman Richard L. | Method for making wells for removing fluid from a desired subterranean |
US7581592B1 (en) | 2004-11-24 | 2009-09-01 | Bush Ronald R | System and method for the manufacture of fuel, fuelstock or fuel additives |
US7353877B2 (en) * | 2004-12-21 | 2008-04-08 | Cdx Gas, Llc | Accessing subterranean resources by formation collapse |
US7311150B2 (en) * | 2004-12-21 | 2007-12-25 | Cdx Gas, Llc | Method and system for cleaning a well bore |
US7225872B2 (en) * | 2004-12-21 | 2007-06-05 | Cdx Gas, Llc | Perforating tubulars |
US7299864B2 (en) * | 2004-12-22 | 2007-11-27 | Cdx Gas, Llc | Adjustable window liner |
WO2006076547A2 (en) * | 2005-01-14 | 2006-07-20 | Halliburton Energy Services, Inc. | System and method for producing fluids from a subterranean formation |
CN1317483C (en) * | 2005-03-25 | 2007-05-23 | 北京奥瑞安能源技术开发有限公司 | Method of entering target geologic body and system |
CN100420824C (en) * | 2005-04-21 | 2008-09-24 | 新奥气化采煤有限公司 | Underground coal gasification |
US7571771B2 (en) * | 2005-05-31 | 2009-08-11 | Cdx Gas, Llc | Cavity well system |
US20060175061A1 (en) * | 2005-08-30 | 2006-08-10 | Crichlow Henry B | Method for Recovering Hydrocarbons from Subterranean Formations |
US7493951B1 (en) | 2005-11-14 | 2009-02-24 | Target Drilling, Inc. | Under-balanced directional drilling system |
CN100455769C (en) * | 2005-12-22 | 2009-01-28 | 中国石油大学(华东) | Method for extracting hydrate on bottom of sea by deep earth heart water circulation |
US7647967B2 (en) * | 2006-01-12 | 2010-01-19 | Jimni Development LLC | Drilling and opening reservoir using an oriented fissure to enhance hydrocarbon flow and method of making |
US8261820B2 (en) | 2006-01-12 | 2012-09-11 | Jimni Development LLC | Drilling and opening reservoirs using an oriented fissure |
AU2007264957A1 (en) * | 2006-06-28 | 2008-01-03 | Richard E. Scallen | Dewatering apparatus |
US20080016768A1 (en) | 2006-07-18 | 2008-01-24 | Togna Keith A | Chemically-modified mixed fuels, methods of production and used thereof |
US8622608B2 (en) * | 2006-08-23 | 2014-01-07 | M-I L.L.C. | Process for mixing wellbore fluids |
US8044819B1 (en) | 2006-10-23 | 2011-10-25 | Scientific Drilling International | Coal boundary detection using an electric-field borehole telemetry apparatus |
US7812647B2 (en) * | 2007-05-21 | 2010-10-12 | Advanced Analogic Technologies, Inc. | MOSFET gate drive with reduced power loss |
AU2008284063B2 (en) | 2007-08-03 | 2015-01-22 | Pine Tree Gas, Llc | Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations |
US7832468B2 (en) * | 2007-10-03 | 2010-11-16 | Pine Tree Gas, Llc | System and method for controlling solids in a down-hole fluid pumping system |
AU2008347220A1 (en) * | 2008-01-02 | 2009-07-16 | Joseph A. Zupanick | Slim-hole parasite string |
GB2459082B (en) * | 2008-02-19 | 2010-04-21 | Phillip Raymond Michael Denne | Improvements in artificial lift mechanisms |
US8137779B2 (en) * | 2008-02-29 | 2012-03-20 | Ykk Corporation Of America | Line of sight hose cover |
CA2717366A1 (en) | 2008-03-13 | 2009-09-17 | Pine Tree Gas, Llc | Improved gas lift system |
WO2009129143A1 (en) | 2008-04-18 | 2009-10-22 | Shell Oil Company | Systems, methods, and processes utilized for treating hydrocarbon containing subsurface formations |
US8740310B2 (en) * | 2008-06-20 | 2014-06-03 | Solvay Chemicals, Inc. | Mining method for co-extraction of non-combustible ore and mine methane |
WO2010012771A2 (en) | 2008-08-01 | 2010-02-04 | Solvay Chemicals, Inc. | Traveling undercut solution mining systems and methods |
WO2010016767A2 (en) * | 2008-08-08 | 2010-02-11 | Ziebel As | Subsurface reservoir drainage system |
WO2010045115A2 (en) | 2008-10-13 | 2010-04-22 | Shell Oil Company | Treating subsurface hydrocarbon containing formations and the systems, methods, and processes utilized |
RU2389909C1 (en) * | 2009-01-30 | 2010-05-20 | Борис Анатольевич ДУДНИЧЕНКО | Well jet pumping unit for degassing of coal beds |
US20110005762A1 (en) * | 2009-07-09 | 2011-01-13 | James Michael Poole | Forming Multiple Deviated Wellbores |
CN101603431B (en) * | 2009-07-14 | 2011-05-11 | 中国矿业大学 | Method for reinforcing outburst-prone coal seam cross-cut coal uncovering |
US8229488B2 (en) * | 2009-07-30 | 2012-07-24 | Sony Ericsson Mobile Communications Ab | Methods, apparatuses and computer programs for media content distribution |
CN101649740B (en) * | 2009-09-03 | 2011-08-31 | 周福宝 | Ground bored well body structure for gas extraction |
CN102053249B (en) * | 2009-10-30 | 2013-04-03 | 吴立新 | Underground space high-precision positioning method based on laser scanning and sequence encoded graphics |
ES2371429B1 (en) * | 2009-11-24 | 2012-08-30 | Antonio Francisco Soler Terol | PERFECTED SYSTEM OF ACCESS TO UNDERGROUND VERTICAL DUCTS. |
WO2011084497A1 (en) * | 2009-12-15 | 2011-07-14 | Chevron U.S.A. Inc. | System, method and assembly for wellbore maintenance operations |
CN101732929B (en) * | 2010-02-11 | 2012-05-30 | 常熟理工学院 | Blade lattice streaming gravity buoyancy device |
US9127538B2 (en) | 2010-04-09 | 2015-09-08 | Shell Oil Company | Methodologies for treatment of hydrocarbon formations using staged pyrolyzation |
WO2011127292A1 (en) * | 2010-04-09 | 2011-10-13 | Shell Oil Company | Methods for heating with slots in hydrocarbon formations |
CN101806207A (en) * | 2010-04-26 | 2010-08-18 | 徐萍 | Horizontal well three-dimensional intersection well pattern structure |
CN101818620B (en) * | 2010-04-26 | 2013-04-10 | 徐萍 | Mining method for maximum reservoir contact well |
CN101915072B (en) * | 2010-08-04 | 2014-03-26 | 中煤科工集团重庆研究院 | Method for extracting coal bed gas in stable mining region by ground well drilling |
CN101936155B (en) * | 2010-08-04 | 2014-06-04 | 北京奥瑞安能源技术开发有限公司 | Distributed structure of horizontal section of multi-branch horizontal coal bed methane well |
CN101936142B (en) * | 2010-08-05 | 2012-11-28 | 北京奥瑞安能源技术开发有限公司 | Aerated underbalanced drilling method for coal-bed gas |
WO2012027110A1 (en) | 2010-08-23 | 2012-03-01 | Wentworth Patent Holdings Inc. | Method and apparatus for creating a planar cavern |
US8646846B2 (en) | 2010-08-23 | 2014-02-11 | Steven W. Wentworth | Method and apparatus for creating a planar cavern |
US9359876B2 (en) | 2010-08-27 | 2016-06-07 | Well Control Technologies, Inc. | Methods and apparatus for removing liquid from a gas producing well |
CA3023007A1 (en) * | 2010-08-27 | 2012-03-01 | Cnx Gas Company Llc | A method and apparatus for removing liquid from a gas producing well |
CN101967974B (en) * | 2010-09-13 | 2012-07-25 | 灵宝金源矿业股份有限公司 | Method for crossed operation of vertical shaft backward-excavation deepening and exploitation projects |
CN101975055B (en) * | 2010-09-17 | 2013-03-06 | 北京奥瑞安能源技术开发有限公司 | Method for remediating trouble well of coal bed gas multi-branch horizontal well |
CN101949284A (en) * | 2010-09-25 | 2011-01-19 | 北京奥瑞安能源技术开发有限公司 | Coalbed methane horizontal well system and construction method thereof |
CN102080568B (en) * | 2010-11-19 | 2012-10-31 | 河北联合大学 | Method for reducing water pressure of covering layer of mine transferred from opencast mine to underground mine |
CN102146797B (en) * | 2011-01-21 | 2012-12-12 | 中国矿业大学 | Short-section temporary gob-side entry retaining method |
CN102116167B (en) * | 2011-01-25 | 2012-03-21 | 煤炭科学研究总院西安研究院 | Ground and underground three-dimensional extraction system of coal seam gas |
CN102121364A (en) * | 2011-02-14 | 2011-07-13 | 中国矿业大学 | Well structure of pressure-releasing coal bed gas ground extraction well and arrangement method thereof |
HU229944B1 (en) * | 2011-05-30 | 2015-03-02 | Sld Enhanced Recovery, Inc | Method for ensuring of admission material into a bore hole |
CN102213090B (en) * | 2011-06-03 | 2014-08-06 | 中国科学院广州能源研究所 | Method and device for exploiting natural gas hydrate in permafrost region |
CN102852546B (en) * | 2011-06-30 | 2015-04-29 | 河南煤业化工集团研究院有限责任公司 | Method for pre-pumping coal roadway stripe gas of single soft protruded coal seam of unexploited area |
CN102352774A (en) * | 2011-07-27 | 2012-02-15 | 焦作矿区计量检测中心 | Method for controlling efficiency of drainage system by using flow rate of pipelines |
RU2499142C2 (en) * | 2011-09-02 | 2013-11-20 | Михаил Владимирович Попов | Method of degassing of unrelieved formations in underground mines |
CN102400664B (en) * | 2011-09-03 | 2012-12-26 | 中煤科工集团西安研究院 | Well completion process method for increasing gas production of ground horizontally butted well of soft coal stratum |
CN102383830B (en) * | 2011-09-30 | 2014-12-24 | 中煤科工集团重庆研究院有限公司 | Comprehensive outburst prevention method for outburst coal seam region |
CN102352769A (en) * | 2011-10-21 | 2012-02-15 | 河南煤业化工集团研究院有限责任公司 | Integrated mining method for commonly mining coal and gas of high mine |
CN102392678A (en) * | 2011-10-21 | 2012-03-28 | 河南煤业化工集团研究院有限责任公司 | Gas drainage method combining surface and underground fracturing and permeability improvement |
CN103161439A (en) * | 2011-12-09 | 2013-06-19 | 卫国 | Horizontal segment updip well group |
RU2485297C1 (en) * | 2011-12-22 | 2013-06-20 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Development method of oil deposits by means of well interconnected through productive formation |
CN102425397A (en) * | 2011-12-29 | 2012-04-25 | 郑州大学 | Method for exploiting coal-bed methane by utilizing water force of horizontal pinnate well of double well-shaft to scour, drill and relieve pressure |
CN102518411A (en) * | 2011-12-29 | 2012-06-27 | 郑州大学 | Method for mining coal bed gas by hydraulic washout of butted well in manner of pressure relief |
RU2499134C2 (en) * | 2012-01-13 | 2013-11-20 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Method of development of oil pool located above gas pool and separated therefrom by impermeable parting |
RU2503799C2 (en) * | 2012-03-12 | 2014-01-10 | Открытое Акционерное Общество "Газпром Промгаз" | Method for shale gas production |
CN102704908B (en) * | 2012-05-14 | 2015-06-03 | 西南石油大学 | Split-flow automatic control system of coal bed methane horizontal branch well and process thereof |
US8919441B2 (en) | 2012-07-03 | 2014-12-30 | Halliburton Energy Services, Inc. | Method of intersecting a first well bore by a second well bore |
CN102852490A (en) * | 2012-09-07 | 2013-01-02 | 北京九尊能源技术股份有限公司 | High gas suction and discharge process method for complex well |
CN103711457A (en) * | 2012-09-29 | 2014-04-09 | 中国石油化工股份有限公司 | Design method of six-spud-in wellbore structure |
US9388668B2 (en) * | 2012-11-23 | 2016-07-12 | Robert Francis McAnally | Subterranean channel for transporting a hydrocarbon for prevention of hydrates and provision of a relief well |
CN103161440A (en) * | 2013-02-27 | 2013-06-19 | 中联煤层气国家工程研究中心有限责任公司 | Single-well coalbed methane horizontal well system and finishing method thereof |
US9320989B2 (en) * | 2013-03-15 | 2016-04-26 | Haven Technology Solutions, LLC. | Apparatus and method for gas-liquid separation |
CN104141481B (en) * | 2013-05-06 | 2016-09-07 | 中国石油天然气股份有限公司 | A kind of ultra-low penetration compact oil reservoir horizontal well well-arranging procedure |
CN103243777A (en) * | 2013-05-17 | 2013-08-14 | 贵州能发高山矿业有限公司 | Karst region mine water-exploring water-taking method and device |
CN103291307B (en) * | 2013-05-22 | 2015-08-05 | 中南大学 | A kind of rich water rockhole Dewatering by leading level method |
CN103670271B (en) * | 2013-12-30 | 2016-03-09 | 中国石油集团渤海钻探工程有限公司 | Two-way Cycle relay-type coal seam drilling method |
CN103711473B (en) * | 2013-12-30 | 2016-01-20 | 中国石油集团渤海钻探工程有限公司 | Two-way Cycle relay-type coal seam compound well bores completion method |
CN103742188B (en) * | 2014-01-07 | 2016-08-17 | 中国神华能源股份有限公司 | Colliery drawing-off gas well and boring method |
CN103821554B (en) * | 2014-03-07 | 2016-03-30 | 重庆大学 | Based on the boring method for arranging without coal pillar mining Y type ventilation goaf |
WO2015157812A1 (en) * | 2014-04-14 | 2015-10-22 | Peabody Energy Australia | A multi purpose drilling system and method |
RU2546704C1 (en) * | 2014-04-15 | 2015-04-10 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Less explored oil deposit development method |
CN103967472B (en) * | 2014-05-26 | 2016-08-31 | 中煤科工集团西安研究院有限公司 | A kind of coal bed gas staged fracturing horizontal well enhanced gas extraction method |
CN104131831B (en) * | 2014-06-12 | 2016-10-12 | 中国矿业大学 | A kind of coal bed gas well three-dimensional associating pumping method up and down |
CN103993827B (en) * | 2014-06-12 | 2016-07-06 | 北京奥瑞安能源技术开发有限公司 | Under balance pressure drilling method and system for coal bed gas |
WO2016019427A1 (en) * | 2014-08-04 | 2016-02-11 | Leap Energy Australia Pty Ltd | A well system |
CN104329113B (en) * | 2014-09-03 | 2016-10-05 | 安徽理工大学 | A kind of method of surface drilling standing seat earth release mash gas extraction |
CN104453832B (en) * | 2014-10-30 | 2018-04-06 | 北京奥瑞安能源技术开发有限公司 | A kind of multi-lateral horizontal well system and its construction method |
CN104790951B (en) * | 2015-03-12 | 2017-09-26 | 大同煤矿集团有限责任公司 | Weaken the method and device away from the high-order tight roofs of 100 ~ 350m of coal seam |
CN104806217B (en) * | 2015-03-20 | 2017-03-22 | 河南理工大学 | Combined separated layer fracturing, grouping and layer-combining mining method for coal bed well group |
CN104695912A (en) * | 2015-03-24 | 2015-06-10 | 山东齐天石油技术有限公司 | Novel coal-bed methane mining equipment |
CN104847263A (en) * | 2015-04-30 | 2015-08-19 | 中煤科工集团西安研究院有限公司 | Coal bed methane far-end butt joint horizontal well drilling method |
US10036210B2 (en) * | 2015-05-01 | 2018-07-31 | Zilift Holdings, Ltd. | Method and system for deploying an electrical submersible pump in a wellbore |
CN104948108A (en) * | 2015-05-30 | 2015-09-30 | 山西晋城无烟煤矿业集团有限责任公司 | Hole drilling and poking technology of kilometer drilling machine for coal seam gas hole drilling |
CN105003293A (en) * | 2015-07-01 | 2015-10-28 | 西南石油大学 | Gas drainage system for high-gas-content coal mine |
CN104989330A (en) * | 2015-08-03 | 2015-10-21 | 中国神华能源股份有限公司 | Coalbed gas recovery method |
CN105041370B (en) * | 2015-08-24 | 2017-07-07 | 安徽理工大学 | A kind of concordant hole pumping and mining coal-bed gas two-dimensional flow field method of testing |
CN105156089A (en) * | 2015-08-28 | 2015-12-16 | 中国神华能源股份有限公司 | U-shaped well system and well drilling method thereof |
CN105134213B (en) * | 2015-09-10 | 2017-05-03 | 西南石油大学 | Regional drilling and coal mining process method |
CN105317456A (en) * | 2015-11-16 | 2016-02-10 | 中国矿业大学 | Gas extraction pipeline and method capable of preventing water accumulation and slag deposition |
CN105649531B (en) * | 2015-12-21 | 2017-12-05 | 中国石油天然气集团公司 | One kind is without rig drilling equipment |
CN105715227B (en) * | 2016-01-26 | 2018-01-09 | 中国矿业大学 | Self-sealing hydraulic pressure for up pressure measuring drill hole removes device and application method certainly |
CN105888723B (en) * | 2016-06-24 | 2018-04-10 | 安徽理工大学 | Drainage arrangement from gas pressure measurement to layer-through drilling and method during a kind of lower |
CN105937393B (en) * | 2016-06-27 | 2022-11-04 | 中国石油天然气股份有限公司 | Horizontal well dragging type liquid production profile testing pipe column and testing method thereof |
CN106351687B (en) * | 2016-10-31 | 2018-06-26 | 张培 | A kind of convertible deslagging water drainage device of gas drainage pipeline |
CN106555609B (en) * | 2016-11-21 | 2017-08-08 | 西安科技大学 | A kind of coal mine gob water, which is visited, puts method |
CN106545296A (en) * | 2016-12-02 | 2017-03-29 | 淮北矿业股份有限公司 | A kind of surface drilling grouting treatment method of deep mining coal seam base plate limestone water damage |
CN106869875B (en) * | 2017-01-05 | 2019-06-07 | 中国神华能源股份有限公司 | The method for exploiting two layers of coal bed gas |
CN106677746A (en) * | 2017-01-05 | 2017-05-17 | 中国神华能源股份有限公司 | Method for coal bed gas exploitation of full working face through down-hole system |
US10184297B2 (en) | 2017-02-13 | 2019-01-22 | Saudi Arabian Oil Company | Drilling and operating sigmoid-shaped wells |
CN107044270B (en) * | 2017-04-05 | 2019-09-13 | 李卫忠 | Coal mine leting speeper casing water-stopping method and sealing casing |
CN107152261A (en) * | 2017-05-10 | 2017-09-12 | 中国神华能源股份有限公司 | Coal bed gas extraction system and method for construction |
CN107313716B (en) * | 2017-07-18 | 2023-05-09 | 山西晋城无烟煤矿业集团有限责任公司 | Drilling method for coal-bed gas well crossing goaf by composite plugging broken rock at hole bottom |
US11136875B2 (en) * | 2017-07-27 | 2021-10-05 | Saudi Arabian Oil Company | Systems, apparatuses, and methods for downhole water separation |
CN107288546B (en) * | 2017-08-16 | 2019-05-03 | 北京奥瑞安能源技术开发有限公司 | A kind of completion method and horizontal well of horizontal well |
CN108590738A (en) * | 2018-03-01 | 2018-09-28 | 王宇曜 | Down-hole gas sucking releasing shaft construction method |
CN110242209A (en) * | 2018-03-09 | 2019-09-17 | 中国石油天然气股份有限公司 | The boring method of producing well |
CN108222890A (en) * | 2018-03-09 | 2018-06-29 | 中国石油大学(华东) | A kind of preset tubing string pneumatic type drainage gas production tool |
CN108468566B (en) * | 2018-03-26 | 2019-11-26 | 中煤科工集团西安研究院有限公司 | Empty crystal really visits and puts method mine based on underground pencil directional drilling always |
CN108798630B (en) * | 2018-04-28 | 2021-09-28 | 中国矿业大学 | Cave pressure relief mining simulation test system for tectonic coal in-situ coal bed gas horizontal well |
CN108915766B (en) * | 2018-07-10 | 2020-09-29 | 河北煤炭科学研究院 | Method for exploring deep hidden water guide channel of working surface |
CN109139011A (en) * | 2018-08-02 | 2019-01-04 | 缪协兴 | A kind of coal seam is the waterproof coal-mining method of Main aquifer |
CN109057768A (en) * | 2018-08-02 | 2018-12-21 | 四川盐业地质钻井大队 | Recovery method suitable for thin interbed native soda deposit |
CN109578058B (en) * | 2018-12-10 | 2021-05-14 | 中国矿业大学 | Method for improving gas extraction concentration of extraction borehole through auxiliary drilling |
US10478753B1 (en) | 2018-12-20 | 2019-11-19 | CH International Equipment Ltd. | Apparatus and method for treatment of hydraulic fracturing fluid during hydraulic fracturing |
WO2020132328A1 (en) | 2018-12-20 | 2020-06-25 | Haven Technology Solutions Llc | Apparatus and method for gas-liquid separation of multi-phase fluid |
CN109403955B (en) * | 2018-12-21 | 2022-03-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Device and method for measuring maximum horizontal stress direction in drill hole |
CN110206099A (en) * | 2019-06-14 | 2019-09-06 | 国家能源投资集团有限责任公司 | Underground water system |
CN110107263B (en) * | 2019-06-20 | 2021-09-03 | 中联煤层气有限责任公司 | Method for exploiting coal bed gas from tectonic coal reservoir |
CN110185418B (en) * | 2019-06-20 | 2022-04-19 | 中联煤层气有限责任公司 | Coal bed gas mining method for coal bed group |
CN110306934B (en) * | 2019-07-02 | 2021-03-19 | 中煤科工集团西安研究院有限公司 | Construction method for large-diameter high-position directional long drill hole of double-branch top plate |
CN110439463A (en) * | 2019-07-31 | 2019-11-12 | 江河水利水电咨询中心 | Mined-out Area control injected hole pore-creating technique |
CN110700878B (en) * | 2019-10-24 | 2020-10-27 | 中煤科工集团西安研究院有限公司 | Pumping screw pump drilling tool system for accumulated water in underground drilling hole of coal mine and construction method thereof |
RU2730688C1 (en) * | 2019-12-09 | 2020-08-25 | Федеральное государственное бюджетное учреждение науки Институт горного дела им. Н.А. Чинакала Сибирского отделения Российской академии наук | Method of directed hydraulic fracturing of coal bed |
CN111058891B (en) * | 2019-12-11 | 2021-06-04 | 煤炭科学技术研究院有限公司 | Method for replacing and extracting coal seam gas in underground and aboveground modes |
CN111236891A (en) * | 2020-02-25 | 2020-06-05 | 神华神东煤炭集团有限责任公司 | Coal bed gas extraction method |
CN112240165B (en) * | 2020-06-09 | 2022-10-25 | 冀中能源峰峰集团有限公司 | Target layer position tracking method for exploration and treatment of water damage area of coal mine |
CN111810085A (en) * | 2020-06-12 | 2020-10-23 | 煤科集团沈阳研究院有限公司 | Water jet drilling machine and coal seam feathery gas extraction drilling construction method |
CN111810084A (en) * | 2020-06-12 | 2020-10-23 | 煤科集团沈阳研究院有限公司 | Coal bed mesh gas extraction drilling construction method of water jet drilling machine |
CN111894672B (en) * | 2020-08-14 | 2021-11-23 | 山东科技大学 | Method for advanced treatment of roof separation water damage of stope by adopting ground drainage drilling |
CN112196611B (en) * | 2020-10-12 | 2022-07-12 | 重庆工程职业技术学院 | Gas drainage water-vapor separation device |
CN112211595B (en) * | 2020-10-20 | 2022-05-06 | 吕梁学院 | Construction method of coal-bed gas well at critical position |
CN112211644B (en) * | 2020-10-20 | 2022-04-05 | 吕梁学院 | Method for guaranteeing coal roadway driving of soft coal seam containing gas coal roadway strip |
CN112593911B (en) * | 2020-12-14 | 2022-05-17 | 山西晋城无烟煤矿业集团有限责任公司 | Coal mining and diameter expanding method by sectional power of horizontal well on coal mine ground |
CN112593912B (en) * | 2020-12-14 | 2022-05-17 | 山西晋城无烟煤矿业集团有限责任公司 | Coal bed gas horizontal well power expanding, pressure relief and permeability increase extraction method |
CN112832675A (en) * | 2021-01-08 | 2021-05-25 | 南方科技大学台州研究院 | Method for drilling small-aperture underground water monitoring well in gravel layer |
CN112727542A (en) * | 2021-01-12 | 2021-04-30 | 中国铁路设计集团有限公司 | Underground water comprehensive utilization system for tunnel in water-rich area and use method |
CN112796824B (en) * | 2021-03-08 | 2022-05-17 | 吕梁学院 | Slag discharging and water draining device for gas pipeline |
CN113464121B (en) * | 2021-05-12 | 2023-08-25 | 中煤科工集团西安研究院有限公司 | Method for determining gamma geosteering drilling track of azimuth while drilling |
CN113107591B (en) * | 2021-05-15 | 2022-11-29 | 枣庄矿业集团新安煤业有限公司 | Auxiliary drainage device for preventing and treating water in coal mine construction and drainage method thereof |
CN113279687B (en) * | 2021-06-07 | 2022-03-29 | 中国矿业大学 | Water damage detection and treatment integrated treatment method for old goaf of riverside coal mine |
WO2022261011A1 (en) * | 2021-06-08 | 2022-12-15 | Southwest Irrigation Llc | Systems, methods and apparatus for mine slope extraction |
CN113623005A (en) * | 2021-09-06 | 2021-11-09 | 中煤科工集团沈阳研究院有限公司 | Method for identifying mixed gas mined from coal seam groups |
CN114320290B (en) * | 2021-11-24 | 2023-08-11 | 中煤科工集团西安研究院有限公司 | Full-hydraulic control system and control method for automatic rod-adding drilling machine for coal mine |
CN114198141B (en) * | 2022-02-16 | 2022-06-07 | 中煤昔阳能源有限责任公司白羊岭煤矿 | Fully-mechanized coal mining face short borehole rapid pressure relief extraction method |
CN114562331B (en) * | 2022-03-03 | 2023-04-11 | 中煤科工集团西安研究院有限公司 | Method for preventing and controlling old open water of integrated mine from being damaged by small kiln in same thick coal seam |
CN114737928B (en) * | 2022-06-13 | 2022-09-06 | 中煤科工集团西安研究院有限公司 | Nuclear learning-based coalbed methane intelligent drainage and mining method and system |
CN115450693B (en) * | 2022-08-17 | 2023-07-14 | 中煤科工西安研究院(集团)有限公司 | Large-drop deep-discharging method and system for steeply inclined aquifer |
CN116104567B (en) * | 2022-12-14 | 2023-07-18 | 中国矿业大学 | Comprehensive treatment method for underground coal mine mud-carrying sand water burst |
Citations (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3347595A (en) * | 1965-05-03 | 1967-10-17 | Pittsburgh Plate Glass Co | Establishing communication between bore holes in solution mining |
US3934649A (en) * | 1974-07-25 | 1976-01-27 | The United States Of America As Represented By The United States Energy Research And Development Administration | Method for removal of methane from coalbeds |
US3961824A (en) * | 1974-10-21 | 1976-06-08 | Wouter Hugo Van Eek | Method and system for winning minerals |
US4037658A (en) * | 1975-10-30 | 1977-07-26 | Chevron Research Company | Method of recovering viscous petroleum from an underground formation |
US4089374A (en) * | 1976-12-16 | 1978-05-16 | In Situ Technology, Inc. | Producing methane from coal in situ |
US4220203A (en) * | 1977-12-06 | 1980-09-02 | Stamicarbon, B.V. | Method for recovering coal in situ |
US4299295A (en) * | 1980-02-08 | 1981-11-10 | Kerr-Mcgee Coal Corporation | Process for degasification of subterranean mineral deposits |
US4390067A (en) * | 1981-04-06 | 1983-06-28 | Exxon Production Research Co. | Method of treating reservoirs containing very viscous crude oil or bitumen |
US4442896A (en) * | 1982-07-21 | 1984-04-17 | Reale Lucio V | Treatment of underground beds |
US4532986A (en) * | 1983-05-05 | 1985-08-06 | Texaco Inc. | Bitumen production and substrate stimulation with flow diverter means |
US4544037A (en) * | 1984-02-21 | 1985-10-01 | In Situ Technology, Inc. | Initiating production of methane from wet coal beds |
US4702314A (en) * | 1986-03-03 | 1987-10-27 | Texaco Inc. | Patterns of horizontal and vertical wells for improving oil recovery efficiency |
US5016710A (en) * | 1986-06-26 | 1991-05-21 | Institut Francais Du Petrole | Method of assisted production of an effluent to be produced contained in a geological formation |
US5074360A (en) * | 1990-07-10 | 1991-12-24 | Guinn Jerry H | Method for repoducing hydrocarbons from low-pressure reservoirs |
US5246273A (en) * | 1991-05-13 | 1993-09-21 | Rosar Edward C | Method and apparatus for solution mining |
WO1994021889A2 (en) * | 1993-03-17 | 1994-09-29 | John North | Improvements in or relating to drilling and to the extraction of fluids |
US5411104A (en) * | 1994-02-16 | 1995-05-02 | Conoco Inc. | Coalbed methane drilling |
US5450902A (en) * | 1993-05-14 | 1995-09-19 | Matthews; Cameron M. | Method and apparatus for producing and drilling a well |
US5462116A (en) * | 1994-10-26 | 1995-10-31 | Carroll; Walter D. | Method of producing methane gas from a coal seam |
US5501279A (en) * | 1995-01-12 | 1996-03-26 | Amoco Corporation | Apparatus and method for removing production-inhibiting liquid from a wellbore |
US5501273A (en) * | 1994-10-04 | 1996-03-26 | Amoco Corporation | Method for determining the reservoir properties of a solid carbonaceous subterranean formation |
US5669444A (en) * | 1996-01-31 | 1997-09-23 | Vastar Resources, Inc. | Chemically induced stimulation of coal cleat formation |
DE19725996A1 (en) * | 1996-06-19 | 1998-01-02 | Robert R Talley | Method for conveying water from vertical water borehole system |
EP0819834A1 (en) * | 1996-07-19 | 1998-01-21 | Gaz De France (Service National) | Method for making a cavity in a thin-walled salt mine |
US5720356A (en) * | 1996-02-01 | 1998-02-24 | Gardes; Robert | Method and system for drilling underbalanced radial wells utilizing a dual string technique in a live well |
EP0875661A1 (en) * | 1997-04-28 | 1998-11-04 | Shell Internationale Researchmaatschappij B.V. | Method for moving equipment in a well system |
US5879057A (en) * | 1996-11-12 | 1999-03-09 | Amvest Corporation | Horizontal remote mining system, and method |
EP0952300A1 (en) * | 1998-03-27 | 1999-10-27 | Cooper Cameron Corporation | Method and apparatus for drilling a plurality of offshore underwater wells |
Family Cites Families (409)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US54144A (en) | 1866-04-24 | Improved mode of boring artesian wells | ||
FR964503A (en) | 1950-08-18 | |||
US526708A (en) | 1894-10-02 | Well-drilling apparatus | ||
US274740A (en) | 1883-03-27 | douglass | ||
US639036A (en) | 1899-08-21 | 1899-12-12 | Abner R Heald | Expansion-drill. |
US1189560A (en) | 1914-10-21 | 1916-07-04 | Georg Gondos | Rotary drill. |
US1285347A (en) | 1918-02-09 | 1918-11-19 | Albert Otto | Reamer for oil and gas bearing sand. |
US1485615A (en) | 1920-12-08 | 1924-03-04 | Arthur S Jones | Oil-well reamer |
US1467480A (en) | 1921-12-19 | 1923-09-11 | Petroleum Recovery Corp | Well reamer |
US1488106A (en) | 1923-02-05 | 1924-03-25 | Eagle Mfg Ass | Intake for oil-well pumps |
US1520737A (en) | 1924-04-26 | 1924-12-30 | Robert L Wright | Method of increasing oil extraction from oil-bearing strata |
US1777961A (en) | 1927-04-04 | 1930-10-07 | Capeliuschnicoff M Alcunovitch | Bore-hole apparatus |
US1674392A (en) | 1927-08-06 | 1928-06-19 | Flansburg Harold | Apparatus for excavating postholes |
GB442008A (en) | 1934-07-23 | 1936-01-23 | Leo Ranney | Method of and apparatus for recovering water from or supplying water to subterraneanformations |
GB444484A (en) | 1934-09-17 | 1936-03-17 | Leo Ranney | Process of removing gas from coal and other carbonaceous materials in situ |
US2018285A (en) | 1934-11-27 | 1935-10-22 | Schweitzer Reuben Richard | Method of well development |
US2069482A (en) | 1935-04-18 | 1937-02-02 | James I Seay | Well reamer |
US2150228A (en) | 1936-08-31 | 1939-03-14 | Luther F Lamb | Packer |
US2169718A (en) | 1937-04-01 | 1939-08-15 | Sprengund Tauchgesellschaft M | Hydraulic earth-boring apparatus |
US2335085A (en) | 1941-03-18 | 1943-11-23 | Colonnade Company | Valve construction |
US2490350A (en) | 1943-12-15 | 1949-12-06 | Claude C Taylor | Means for centralizing casing and the like in a well |
US2452654A (en) | 1944-06-09 | 1948-11-02 | Texaco Development Corp | Method of graveling wells |
US2450223A (en) | 1944-11-25 | 1948-09-28 | William R Barbour | Well reaming apparatus |
GB651468A (en) | 1947-08-07 | 1951-04-04 | Ranney Method Water Supplies I | Improvements in and relating to the abstraction of water from water bearing strata |
US2679903A (en) | 1949-11-23 | 1954-06-01 | Sid W Richardson Inc | Means for installing and removing flow valves or the like |
US2726847A (en) | 1952-03-31 | 1955-12-13 | Oilwell Drain Hole Drilling Co | Drain hole drilling equipment |
US2726063A (en) | 1952-05-10 | 1955-12-06 | Exxon Research Engineering Co | Method of drilling wells |
US2723063A (en) * | 1952-06-03 | 1955-11-08 | Carr Stanly | Garment hanger |
US2847189A (en) | 1953-01-08 | 1958-08-12 | Texas Co | Apparatus for reaming holes drilled in the earth |
US2780018A (en) | 1953-03-11 | 1957-02-05 | James R Bauserman | Vehicle license tag and tab construction |
US2797893A (en) | 1954-09-13 | 1957-07-02 | Oilwell Drain Hole Drilling Co | Drilling and lining of drain holes |
US2783018A (en) | 1955-02-11 | 1957-02-26 | Vac U Lift Company | Valve means for suction lifting devices |
US2934904A (en) | 1955-09-01 | 1960-05-03 | Phillips Petroleum Co | Dual storage caverns |
US2911008A (en) | 1956-04-09 | 1959-11-03 | Manning Maxwell & Moore Inc | Fluid flow control device |
US2868202A (en) * | 1956-09-24 | 1959-01-13 | Abe Okrend | Infant feeding device |
US2980142A (en) | 1958-09-08 | 1961-04-18 | Turak Anthony | Plural dispensing valve |
GB893869A (en) | 1960-09-21 | 1962-04-18 | Ranney Method International In | Improvements in or relating to wells |
US3208537A (en) | 1960-12-08 | 1965-09-28 | Reed Roller Bit Co | Method of drilling |
US3163211A (en) | 1961-06-05 | 1964-12-29 | Pan American Petroleum Corp | Method of conducting reservoir pilot tests with a single well |
US3135293A (en) | 1962-08-28 | 1964-06-02 | Robert L Erwin | Rotary control valve |
US3385382A (en) | 1964-07-08 | 1968-05-28 | Otis Eng Co | Method and apparatus for transporting fluids |
US3406766A (en) | 1966-07-07 | 1968-10-22 | Henderson John Keller | Method and devices for interconnecting subterranean boreholes |
FR1533221A (en) | 1967-01-06 | 1968-07-19 | Dba Sa | Digitally Controlled Flow Valve |
US3362475A (en) | 1967-01-11 | 1968-01-09 | Gulf Research Development Co | Method of gravel packing a well and product formed thereby |
US3443648A (en) | 1967-09-13 | 1969-05-13 | Fenix & Scisson Inc | Earth formation underreamer |
US3534822A (en) | 1967-10-02 | 1970-10-20 | Walker Neer Mfg Co | Well circulating device |
US3809519A (en) | 1967-12-15 | 1974-05-07 | Ici Ltd | Injection moulding machines |
US3578077A (en) | 1968-05-27 | 1971-05-11 | Mobil Oil Corp | Flow control system and method |
US3503377A (en) | 1968-07-30 | 1970-03-31 | Gen Motors Corp | Control valve |
US3528516A (en) | 1968-08-21 | 1970-09-15 | Cicero C Brown | Expansible underreamer for drilling large diameter earth bores |
US3530675A (en) | 1968-08-26 | 1970-09-29 | Lee A Turzillo | Method and means for stabilizing structural layer overlying earth materials in situ |
US3582138A (en) | 1969-04-24 | 1971-06-01 | Robert L Loofbourow | Toroid excavation system |
US3647230A (en) | 1969-07-24 | 1972-03-07 | William L Smedley | Well pipe seal |
US3587743A (en) | 1970-03-17 | 1971-06-28 | Pan American Petroleum Corp | Explosively fracturing formations in wells |
USRE32623E (en) * | 1970-09-08 | 1988-03-15 | Shell Oil Company | Curved offshore well conductors |
US3687204A (en) | 1970-09-08 | 1972-08-29 | Shell Oil Co | Curved offshore well conductors |
US3684041A (en) | 1970-11-16 | 1972-08-15 | Baker Oil Tools Inc | Expansible rotary drill bit |
US3692041A (en) | 1971-01-04 | 1972-09-19 | Gen Electric | Variable flow distributor |
US3681011A (en) | 1971-01-19 | 1972-08-01 | Us Army | Cryo-coprecipitation method for production of ultrafine mixed metallic-oxide particles |
US3744565A (en) | 1971-01-22 | 1973-07-10 | Cities Service Oil Co | Apparatus and process for the solution and heating of sulfur containing natural gas |
FI46651C (en) | 1971-01-22 | 1973-05-08 | Rinta | Ways to drive water-soluble liquids and gases to a small extent. |
US3757876A (en) | 1971-09-01 | 1973-09-11 | Smith International | Drilling and belling apparatus |
US3859328A (en) * | 1971-11-03 | 1975-01-07 | Pfizer | 18 beta-glycyrrhetinic acid amides |
US3757877A (en) | 1971-12-30 | 1973-09-11 | Grant Oil Tool Co | Large diameter hole opener for earth boring |
US3759328A (en) | 1972-05-11 | 1973-09-18 | Shell Oil Co | Laterally expanding oil shale permeabilization |
US3828867A (en) | 1972-05-15 | 1974-08-13 | A Elwood | Low frequency drill bit apparatus and method of locating the position of the drill head below the surface of the earth |
US3902322A (en) | 1972-08-29 | 1975-09-02 | Hikoitsu Watanabe | Drain pipes for preventing landslides and method for driving the same |
US3800830A (en) | 1973-01-11 | 1974-04-02 | B Etter | Metering valve |
US3825081A (en) | 1973-03-08 | 1974-07-23 | H Mcmahon | Apparatus for slant hole directional drilling |
US3874413A (en) | 1973-04-09 | 1975-04-01 | Vals Construction | Multiported valve |
US3907045A (en) | 1973-11-30 | 1975-09-23 | Continental Oil Co | Guidance system for a horizontal drilling apparatus |
US3887008A (en) | 1974-03-21 | 1975-06-03 | Charles L Canfield | Downhole gas compression technique |
US4022279A (en) * | 1974-07-09 | 1977-05-10 | Driver W B | Formation conditioning process and system |
US3957082A (en) | 1974-09-26 | 1976-05-18 | Arbrook, Inc. | Six-way stopcock |
SE386500B (en) | 1974-11-25 | 1976-08-09 | Sjumek Sjukvardsmek Hb | GAS MIXTURE VALVE |
US3952802A (en) * | 1974-12-11 | 1976-04-27 | In Situ Technology, Inc. | Method and apparatus for in situ gasification of coal and the commercial products derived therefrom |
SU750108A1 (en) * | 1975-06-26 | 1980-07-23 | Донецкий Ордена Трудового Красного Знамени Политехнический Институт | Method of degassing coal bed satellites |
US4037351A (en) | 1975-12-15 | 1977-07-26 | Springer Charles H | Apparatus for attracting and electrocuting flies |
US4020901A (en) | 1976-01-19 | 1977-05-03 | Chevron Research Company | Arrangement for recovering viscous petroleum from thick tar sand |
US4030310A (en) | 1976-03-04 | 1977-06-21 | Sea-Log Corporation | Monopod drilling platform with directional drilling |
US4137975A (en) | 1976-05-13 | 1979-02-06 | The British Petroleum Company Limited | Drilling method |
US4073351A (en) | 1976-06-10 | 1978-02-14 | Pei, Inc. | Burners for flame jet drill |
US4060130A (en) | 1976-06-28 | 1977-11-29 | Texaco Trinidad, Inc. | Cleanout procedure for well with low bottom hole pressure |
US4077481A (en) * | 1976-07-12 | 1978-03-07 | Fmc Corporation | Subterranean mining apparatus |
JPS5358105A (en) | 1976-11-08 | 1978-05-25 | Nippon Concrete Ind Co Ltd | Method of generating supporting force for middle excavation system |
US4136996A (en) | 1977-05-23 | 1979-01-30 | Texaco Development Corporation | Directional drilling marine structure |
US4134463A (en) | 1977-06-22 | 1979-01-16 | Smith International, Inc. | Air lift system for large diameter borehole drilling |
US4169510A (en) | 1977-08-16 | 1979-10-02 | Phillips Petroleum Company | Drilling and belling apparatus |
US4151880A (en) | 1977-10-17 | 1979-05-01 | Peabody Vann | Vent assembly |
US4160510A (en) | 1978-01-30 | 1979-07-10 | Rca Corporation | CRT with tension band adapted for pusher-type tensioning and method for producing same |
US4156437A (en) | 1978-02-21 | 1979-05-29 | The Perkin-Elmer Corporation | Computer controllable multi-port valve |
US4182423A (en) | 1978-03-02 | 1980-01-08 | Burton/Hawks Inc. | Whipstock and method for directional well drilling |
US4226475A (en) | 1978-04-19 | 1980-10-07 | Frosch Robert A | Underground mineral extraction |
NL7806559A (en) | 1978-06-19 | 1979-12-21 | Stamicarbon | DEVICE FOR MINERAL EXTRACTION THROUGH A BOREHOLE. |
US4221433A (en) | 1978-07-20 | 1980-09-09 | Occidental Minerals Corporation | Retrogressively in-situ ore body chemical mining system and method |
US4257650A (en) * | 1978-09-07 | 1981-03-24 | Barber Heavy Oil Process, Inc. | Method for recovering subsurface earth substances |
US4189184A (en) | 1978-10-13 | 1980-02-19 | Green Harold F | Rotary drilling and extracting process |
US4224989A (en) | 1978-10-30 | 1980-09-30 | Mobil Oil Corporation | Method of dynamically killing a well blowout |
FR2445483A1 (en) | 1978-12-28 | 1980-07-25 | Geostock | SAFETY METHOD AND DEVICE FOR UNDERGROUND LIQUEFIED GAS STORAGE |
US4366988A (en) | 1979-02-16 | 1983-01-04 | Bodine Albert G | Sonic apparatus and method for slurry well bore mining and production |
FR2452590A1 (en) | 1979-03-27 | 1980-10-24 | Snecma | REMOVABLE SEAL FOR TURBOMACHINE DISPENSER SEGMENT |
US4283088A (en) | 1979-05-14 | 1981-08-11 | Tabakov Vladimir P | Thermal--mining method of oil production |
US4296785A (en) | 1979-07-09 | 1981-10-27 | Mallinckrodt, Inc. | System for generating and containerizing radioisotopes |
US4222611A (en) | 1979-08-16 | 1980-09-16 | United States Of America As Represented By The Secretary Of The Interior | In-situ leach mining method using branched single well for input and output |
US4312377A (en) | 1979-08-29 | 1982-01-26 | Teledyne Adams, A Division Of Teledyne Isotopes, Inc. | Tubular valve device and method of assembly |
CA1140457A (en) | 1979-10-19 | 1983-02-01 | Noval Technologies Ltd. | Method for recovering methane from coal seams |
US4333539A (en) | 1979-12-31 | 1982-06-08 | Lyons William C | Method for extended straight line drilling from a curved borehole |
US4386665A (en) | 1980-01-14 | 1983-06-07 | Mobil Oil Corporation | Drilling technique for providing multiple-pass penetration of a mineral-bearing formation |
US4303127A (en) | 1980-02-11 | 1981-12-01 | Gulf Research & Development Company | Multistage clean-up of product gas from underground coal gasification |
SU876968A1 (en) | 1980-02-18 | 1981-10-30 | Всесоюзный Научно-Исследовательский Институт Использования Газов В Народном Хозяйстве И Подземного Хранения Нефти, Нефтепродуктов И Сжиженных Газов | Method of communicating wells in formations of soluble rock |
US4317492A (en) | 1980-02-26 | 1982-03-02 | The Curators Of The University Of Missouri | Method and apparatus for drilling horizontal holes in geological structures from a vertical bore |
US4296969A (en) | 1980-04-11 | 1981-10-27 | Exxon Production Research Company | Thermal recovery of viscous hydrocarbons using arrays of radially spaced horizontal wells |
US4328577A (en) | 1980-06-03 | 1982-05-04 | Rockwell International Corporation | Muldem automatically adjusting to system expansion and contraction |
US4372398A (en) | 1980-11-04 | 1983-02-08 | Cornell Research Foundation, Inc. | Method of determining the location of a deep-well casing by magnetic field sensing |
CH653741A5 (en) | 1980-11-10 | 1986-01-15 | Elektra Energy Ag | Method of extracting crude oil from oil shale or oil sand |
US4356866A (en) | 1980-12-31 | 1982-11-02 | Mobil Oil Corporation | Process of underground coal gasification |
JPS627747Y2 (en) | 1981-03-17 | 1987-02-23 | ||
US4396076A (en) | 1981-04-27 | 1983-08-02 | Hachiro Inoue | Under-reaming pile bore excavator |
US4396075A (en) | 1981-06-23 | 1983-08-02 | Wood Edward T | Multiple branch completion with common drilling and casing template |
US4397360A (en) | 1981-07-06 | 1983-08-09 | Atlantic Richfield Company | Method for forming drain holes from a cased well |
US4415205A (en) | 1981-07-10 | 1983-11-15 | Rehm William A | Triple branch completion with separate drilling and completion templates |
US4437706A (en) | 1981-08-03 | 1984-03-20 | Gulf Canada Limited | Hydraulic mining of tar sands with submerged jet erosion |
US4401171A (en) | 1981-12-10 | 1983-08-30 | Dresser Industries, Inc. | Underreamer with debris flushing flow path |
US4422505A (en) * | 1982-01-07 | 1983-12-27 | Atlantic Richfield Company | Method for gasifying subterranean coal deposits |
US4444896A (en) | 1982-05-05 | 1984-04-24 | Exxon Research And Engineering Co. | Reactivation of iridium-containing catalysts by halide pretreat and oxygen redispersion |
US4527639A (en) | 1982-07-26 | 1985-07-09 | Bechtel National Corp. | Hydraulic piston-effect method and apparatus for forming a bore hole |
US4494010A (en) | 1982-08-09 | 1985-01-15 | Standum Controls, Inc. | Programmable power control apparatus responsive to load variations |
US4463988A (en) | 1982-09-07 | 1984-08-07 | Cities Service Co. | Horizontal heated plane process |
US4558744A (en) | 1982-09-14 | 1985-12-17 | Canocean Resources Ltd. | Subsea caisson and method of installing same |
US4452489A (en) * | 1982-09-20 | 1984-06-05 | Methane Drainage Ventures | Multiple level methane drainage shaft method |
US4458767A (en) | 1982-09-28 | 1984-07-10 | Mobil Oil Corporation | Method for directionally drilling a first well to intersect a second well |
US4715400A (en) | 1983-03-09 | 1987-12-29 | Xomox Corporation | Valve and method of making same |
JPS6058307A (en) | 1983-03-18 | 1985-04-04 | 株式会社太洋商会 | Molding automatic packing method of hanging section and device thereof |
FR2545006B1 (en) | 1983-04-27 | 1985-08-16 | Mancel Patrick | DEVICE FOR SPRAYING PRODUCTS, ESPECIALLY PAINTS |
US4502733A (en) * | 1983-06-08 | 1985-03-05 | Tetra Systems, Inc. | Oil mining configuration |
US4512422A (en) | 1983-06-28 | 1985-04-23 | Rondel Knisley | Apparatus for drilling oil and gas wells and a torque arrestor associated therewith |
US4494616A (en) | 1983-07-18 | 1985-01-22 | Mckee George B | Apparatus and methods for the aeration of cesspools |
CA1210992A (en) | 1983-07-28 | 1986-09-09 | Quentin Siebold | Off-vertical pumping unit |
FR2551491B1 (en) | 1983-08-31 | 1986-02-28 | Elf Aquitaine | MULTIDRAIN OIL DRILLING AND PRODUCTION DEVICE |
FR2557195B1 (en) | 1983-12-23 | 1986-05-02 | Inst Francais Du Petrole | METHOD FOR FORMING A FLUID BARRIER USING INCLINED DRAINS, ESPECIALLY IN AN OIL DEPOSIT |
US5168042A (en) | 1984-01-10 | 1992-12-01 | Ly Uy Vu | Instrumentless quantitative analysis system |
US4565252A (en) | 1984-03-08 | 1986-01-21 | Lor, Inc. | Borehole operating tool with fluid circulation through arms |
US4519463A (en) * | 1984-03-19 | 1985-05-28 | Atlantic Richfield Company | Drainhole drilling |
US4605067A (en) | 1984-03-26 | 1986-08-12 | Rejane M. Burton | Method and apparatus for completing well |
US4600061A (en) * | 1984-06-08 | 1986-07-15 | Methane Drainage Ventures | In-shaft drilling method for recovery of gas from subterranean formations |
US4536035A (en) | 1984-06-15 | 1985-08-20 | The United States Of America As Represented By The United States Department Of Energy | Hydraulic mining method |
US4646836A (en) * | 1984-08-03 | 1987-03-03 | Hydril Company | Tertiary recovery method using inverted deviated holes |
US4605076A (en) * | 1984-08-03 | 1986-08-12 | Hydril Company | Method for forming boreholes |
US4533182A (en) | 1984-08-03 | 1985-08-06 | Methane Drainage Ventures | Process for production of oil and gas through horizontal drainholes from underground workings |
US4753485A (en) * | 1984-08-03 | 1988-06-28 | Hydril Company | Solution mining |
US4618009A (en) | 1984-08-08 | 1986-10-21 | Homco International Inc. | Reaming tool |
US4773488A (en) | 1984-08-08 | 1988-09-27 | Atlantic Richfield Company | Development well drilling |
US4599172A (en) | 1984-12-24 | 1986-07-08 | Gardes Robert A | Flow line filter apparatus |
US4674579A (en) | 1985-03-07 | 1987-06-23 | Flowmole Corporation | Method and apparatus for installment of underground utilities |
BE901892A (en) | 1985-03-07 | 1985-07-01 | Institution Pour Le Dev De La | NEW PROCESS FOR CONTROLLED RETRACTION OF THE GAS-INJECTING INJECTION POINT IN SUBTERRANEAN COAL GASIFICATION SITES. |
AU580813B2 (en) * | 1985-05-17 | 1989-02-02 | Methtec Incorporated. | A method of mining coal and removing methane gas from an underground formation |
GB2178088B (en) | 1985-07-25 | 1988-11-09 | Gearhart Tesel Ltd | Improvements in downhole tools |
US4676313A (en) | 1985-10-30 | 1987-06-30 | Rinaldi Roger E | Controlled reservoir production |
US4763734A (en) | 1985-12-23 | 1988-08-16 | Ben W. O. Dickinson | Earth drilling method and apparatus using multiple hydraulic forces |
US4651836A (en) * | 1986-04-01 | 1987-03-24 | Methane Drainage Ventures | Process for recovering methane gas from subterranean coalseams |
FR2596803B1 (en) | 1986-04-02 | 1988-06-24 | Elf Aquitaine | SIMULTANEOUS DRILLING AND TUBING DEVICE |
US4662440A (en) | 1986-06-20 | 1987-05-05 | Conoco Inc. | Methods for obtaining well-to-well flow communication |
US4754808A (en) | 1986-06-20 | 1988-07-05 | Conoco Inc. | Methods for obtaining well-to-well flow communication |
US4727937A (en) * | 1986-10-02 | 1988-03-01 | Texaco Inc. | Steamflood process employing horizontal and vertical wells |
US4718485A (en) * | 1986-10-02 | 1988-01-12 | Texaco Inc. | Patterns having horizontal and vertical wells |
US4754819A (en) | 1987-03-11 | 1988-07-05 | Mobil Oil Corporation | Method for improving cuttings transport during the rotary drilling of a wellbore |
SU1448078A1 (en) * | 1987-03-25 | 1988-12-30 | Московский Горный Институт | Method of degassing a coal-rock mass portion |
US4889186A (en) | 1988-04-25 | 1989-12-26 | Comdisco Resources, Inc. | Overlapping horizontal fracture formation and flooding process |
US4756367A (en) | 1987-04-28 | 1988-07-12 | Amoco Corporation | Method for producing natural gas from a coal seam |
US4889199A (en) | 1987-05-27 | 1989-12-26 | Lee Paul B | Downhole valve for use when drilling an oil or gas well |
US4776638A (en) * | 1987-07-13 | 1988-10-11 | University Of Kentucky Research Foundation | Method and apparatus for conversion of coal in situ |
US4842061A (en) | 1988-02-05 | 1989-06-27 | Vetco Gray Inc. | Casing hanger packoff with C-shaped metal seal |
US4830105A (en) | 1988-02-08 | 1989-05-16 | Atlantic Richfield Company | Centralizer for wellbore apparatus |
JPH01238236A (en) | 1988-03-18 | 1989-09-22 | Hitachi Ltd | Optical subscriber transmitting system |
US4852666A (en) | 1988-04-07 | 1989-08-01 | Brunet Charles G | Apparatus for and a method of drilling offset wells for producing hydrocarbons |
US4836611A (en) | 1988-05-09 | 1989-06-06 | Consolidation Coal Company | Method and apparatus for drilling and separating |
FR2632350B1 (en) | 1988-06-03 | 1990-09-14 | Inst Francais Du Petrole | ASSISTED RECOVERY OF HEAVY HYDROCARBONS FROM A SUBTERRANEAN WELLBORE FORMATION HAVING A PORTION WITH SUBSTANTIALLY HORIZONTAL AREA |
US4844182A (en) | 1988-06-07 | 1989-07-04 | Mobil Oil Corporation | Method for improving drill cuttings transport from a wellbore |
NO169399C (en) | 1988-06-27 | 1992-06-17 | Noco As | DEVICE FOR DRILLING HOLES IN GROUND GROUPS |
US4832122A (en) | 1988-08-25 | 1989-05-23 | The United States Of America As Represented By The United States Department Of Energy | In-situ remediation system and method for contaminated groundwater |
US5185133A (en) * | 1988-08-23 | 1993-02-09 | Gte Products Corporation | Method for producing fine size yellow molybdenum trioxide powder |
US4883122A (en) | 1988-09-27 | 1989-11-28 | Amoco Corporation | Method of coalbed methane production |
US4947935A (en) * | 1989-07-14 | 1990-08-14 | Marathon Oil Company | Kill fluid for oil field operations |
US5201617A (en) | 1989-10-04 | 1993-04-13 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation S.N.E.C.M.A. | Apparatus for supporting a machine tool on a robot arm |
US4978172A (en) | 1989-10-26 | 1990-12-18 | Resource Enterprises, Inc. | Gob methane drainage system |
JP2692316B2 (en) | 1989-11-20 | 1997-12-17 | 日本電気株式会社 | Wavelength division optical switch |
CA2009782A1 (en) | 1990-02-12 | 1991-08-12 | Anoosh I. Kiamanesh | In-situ tuned microwave oil extraction process |
US5035605A (en) | 1990-02-16 | 1991-07-30 | Cincinnati Milacron Inc. | Nozzle shut-off valve for an injection molding machine |
GB9003758D0 (en) | 1990-02-20 | 1990-04-18 | Shell Int Research | Method and well system for producing hydrocarbons |
NL9000426A (en) * | 1990-02-22 | 1991-09-16 | Maria Johanna Francien Voskamp | METHOD AND SYSTEM FOR UNDERGROUND GASIFICATION OF STONE OR BROWN. |
US5106710A (en) | 1990-03-01 | 1992-04-21 | Minnesota Mining And Manufacturing Company | Receptor sheet for a toner developed electrostatic imaging process |
JP2819042B2 (en) | 1990-03-08 | 1998-10-30 | 株式会社小松製作所 | Underground excavator position detector |
SU1709076A1 (en) | 1990-03-22 | 1992-01-30 | Всесоюзный научно-исследовательский институт гидрогеологии и инженерной геологии | Method of filtration well completion |
US5033550A (en) | 1990-04-16 | 1991-07-23 | Otis Engineering Corporation | Well production method |
US5135058A (en) | 1990-04-26 | 1992-08-04 | Millgard Environmental Corporation | Crane-mounted drill and method for in-situ treatment of contaminated soil |
US5148877A (en) | 1990-05-09 | 1992-09-22 | Macgregor Donald C | Apparatus for lateral drain hole drilling in oil and gas wells |
US5194859A (en) | 1990-06-15 | 1993-03-16 | Amoco Corporation | Apparatus and method for positioning a tool in a deviated section of a borehole |
US5148875A (en) | 1990-06-21 | 1992-09-22 | Baker Hughes Incorporated | Method and apparatus for horizontal drilling |
US5074366A (en) | 1990-06-21 | 1991-12-24 | Baker Hughes Incorporated | Method and apparatus for horizontal drilling |
US5040601A (en) | 1990-06-21 | 1991-08-20 | Baker Hughes Incorporated | Horizontal well bore system |
US5036921A (en) | 1990-06-28 | 1991-08-06 | Slimdril International, Inc. | Underreamer with sequentially expandable cutter blades |
US5074365A (en) | 1990-09-14 | 1991-12-24 | Vector Magnetics, Inc. | Borehole guidance system having target wireline |
US5115872A (en) | 1990-10-19 | 1992-05-26 | Anglo Suisse, Inc. | Directional drilling system and method for drilling precise offset wellbores from a main wellbore |
US5217076A (en) * | 1990-12-04 | 1993-06-08 | Masek John A | Method and apparatus for improved recovery of oil from porous, subsurface deposits (targevcir oricess) |
CA2066912C (en) | 1991-04-24 | 1997-04-01 | Ketankumar K. Sheth | Submersible well pump gas separator |
US5165491A (en) | 1991-04-29 | 1992-11-24 | Prideco, Inc. | Method of horizontal drilling |
US5197783A (en) | 1991-04-29 | 1993-03-30 | Esso Resources Canada Ltd. | Extendable/erectable arm assembly and method of borehole mining |
US5664911A (en) | 1991-05-03 | 1997-09-09 | Iit Research Institute | Method and apparatus for in situ decontamination of a site contaminated with a volatile material |
US5193620A (en) | 1991-08-05 | 1993-03-16 | Tiw Corporation | Whipstock setting method and apparatus |
US5271472A (en) | 1991-08-14 | 1993-12-21 | Atlantic Richfield Company | Drilling with casing and retrievable drill bit |
US5197553A (en) | 1991-08-14 | 1993-03-30 | Atlantic Richfield Company | Drilling with casing and retrievable drill bit |
US5174374A (en) | 1991-10-17 | 1992-12-29 | Hailey Charles D | Clean-out tool cutting blade |
US5199496A (en) | 1991-10-18 | 1993-04-06 | Texaco, Inc. | Subsea pumping device incorporating a wellhead aspirator |
US5168942A (en) | 1991-10-21 | 1992-12-08 | Atlantic Richfield Company | Resistivity measurement system for drilling with casing |
US5207271A (en) | 1991-10-30 | 1993-05-04 | Mobil Oil Corporation | Foam/steam injection into a horizontal wellbore for multiple fracture creation |
US5255741A (en) | 1991-12-11 | 1993-10-26 | Mobil Oil Corporation | Process and apparatus for completing a well in an unconsolidated formation |
US5242017A (en) | 1991-12-27 | 1993-09-07 | Hailey Charles D | Cutter blades for rotary tubing tools |
US5201817A (en) | 1991-12-27 | 1993-04-13 | Hailey Charles D | Downhole cutting tool |
US5226495A (en) | 1992-05-18 | 1993-07-13 | Mobil Oil Corporation | Fines control in deviated wells |
US5289888A (en) * | 1992-05-26 | 1994-03-01 | Rrkt Company | Water well completion method |
FR2692315B1 (en) | 1992-06-12 | 1994-09-02 | Inst Francais Du Petrole | System and method for drilling and equipping a lateral well, application to the exploitation of oil fields. |
US5242025A (en) | 1992-06-30 | 1993-09-07 | Union Oil Company Of California | Guided oscillatory well path drilling by seismic imaging |
GB2297988B (en) | 1992-08-07 | 1997-01-22 | Baker Hughes Inc | Method & apparatus for locating & re-entering one or more horizontal wells using whipstocks |
US5474131A (en) | 1992-08-07 | 1995-12-12 | Baker Hughes Incorporated | Method for completing multi-lateral wells and maintaining selective re-entry into laterals |
US5477923A (en) | 1992-08-07 | 1995-12-26 | Baker Hughes Incorporated | Wellbore completion using measurement-while-drilling techniques |
US5655602A (en) * | 1992-08-28 | 1997-08-12 | Marathon Oil Company | Apparatus and process for drilling and completing multiple wells |
US5301760C1 (en) | 1992-09-10 | 2002-06-11 | Natural Reserve Group Inc | Completing horizontal drain holes from a vertical well |
US5343965A (en) | 1992-10-19 | 1994-09-06 | Talley Robert R | Apparatus and methods for horizontal completion of a water well |
US5355967A (en) * | 1992-10-30 | 1994-10-18 | Union Oil Company Of California | Underbalance jet pump drilling method |
US5485089A (en) | 1992-11-06 | 1996-01-16 | Vector Magnetics, Inc. | Method and apparatus for measuring distance and direction by movable magnetic field source |
US5462120A (en) | 1993-01-04 | 1995-10-31 | S-Cal Research Corp. | Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
US5469155A (en) | 1993-01-27 | 1995-11-21 | Mclaughlin Manufacturing Company, Inc. | Wireless remote boring apparatus guidance system |
FR2703407B1 (en) | 1993-03-29 | 1995-05-12 | Inst Francais Du Petrole | Pumping device and method comprising two suction inlets applied to a subhorizontal drain. |
US5402851A (en) | 1993-05-03 | 1995-04-04 | Baiton; Nick | Horizontal drilling method for hydrocarbon recovery |
US5394950A (en) | 1993-05-21 | 1995-03-07 | Gardes; Robert A. | Method of drilling multiple radial wells using multiple string downhole orientation |
DE4323580C1 (en) * | 1993-07-14 | 1995-03-23 | Elias Lebessis | Tear tool |
US5411088A (en) | 1993-08-06 | 1995-05-02 | Baker Hughes Incorporated | Filter with gas separator for electric setting tool |
US6209636B1 (en) * | 1993-09-10 | 2001-04-03 | Weatherford/Lamb, Inc. | Wellbore primary barrier and related systems |
US5727629A (en) | 1996-01-24 | 1998-03-17 | Weatherford/Lamb, Inc. | Wellbore milling guide and method |
US5363927A (en) | 1993-09-27 | 1994-11-15 | Frank Robert C | Apparatus and method for hydraulic drilling |
US5853056A (en) | 1993-10-01 | 1998-12-29 | Landers; Carl W. | Method of and apparatus for horizontal well drilling |
US5385205A (en) | 1993-10-04 | 1995-01-31 | Hailey; Charles D. | Dual mode rotary cutting tool |
US5431482A (en) * | 1993-10-13 | 1995-07-11 | Sandia Corporation | Horizontal natural gas storage caverns and methods for producing same |
US5501173A (en) | 1993-10-18 | 1996-03-26 | Westinghouse Electric Corporation | Method for epitaxially growing α-silicon carbide on a-axis α-silicon carbide substrates |
US5411085A (en) | 1993-11-01 | 1995-05-02 | Camco International Inc. | Spoolable coiled tubing completion system |
US5411082A (en) | 1994-01-26 | 1995-05-02 | Baker Hughes Incorporated | Scoophead running tool |
US5454410A (en) | 1994-03-15 | 1995-10-03 | Edfors; John E. | Apparatus for rough-splitting planks |
US5431220A (en) | 1994-03-24 | 1995-07-11 | Smith International, Inc. | Whipstock starter mill assembly |
US5658347A (en) | 1994-04-25 | 1997-08-19 | Sarkisian; James S. | Acetabular cup with keel |
US5494121A (en) | 1994-04-28 | 1996-02-27 | Nackerud; Alan L. | Cavern well completion method and apparatus |
US5435400B1 (en) * | 1994-05-25 | 1999-06-01 | Atlantic Richfield Co | Lateral well drilling |
ZA954157B (en) | 1994-05-27 | 1996-04-15 | Seec Inc | Method for recycling carbon dioxide for enhancing plant growth |
US5411105A (en) | 1994-06-14 | 1995-05-02 | Kidco Resources Ltd. | Drilling a well gas supply in the drilling liquid |
US5733067A (en) | 1994-07-11 | 1998-03-31 | Foremost Solutions, Inc | Method and system for bioremediation of contaminated soil using inoculated support spheres |
US5564503A (en) | 1994-08-26 | 1996-10-15 | Halliburton Company | Methods and systems for subterranean multilateral well drilling and completion |
US5454419A (en) | 1994-09-19 | 1995-10-03 | Polybore, Inc. | Method for lining a casing |
US5540282A (en) | 1994-10-21 | 1996-07-30 | Dallas; L. Murray | Apparatus and method for completing/recompleting production wells |
GB2308608B (en) | 1994-10-31 | 1998-11-18 | Red Baron The | 2-stage underreamer |
US5659347A (en) | 1994-11-14 | 1997-08-19 | Xerox Corporation | Ink supply apparatus |
US5613242A (en) * | 1994-12-06 | 1997-03-18 | Oddo; John E. | Method and system for disposing of radioactive solid waste |
US5586609A (en) * | 1994-12-15 | 1996-12-24 | Telejet Technologies, Inc. | Method and apparatus for drilling with high-pressure, reduced solid content liquid |
US5852505A (en) | 1994-12-28 | 1998-12-22 | Lucent Technologies Inc. | Dense waveguide division multiplexers implemented using a first stage fourier filter |
US5732776A (en) * | 1995-02-09 | 1998-03-31 | Baker Hughes Incorporated | Downhole production well control system and method |
GB9505652D0 (en) | 1995-03-21 | 1995-05-10 | Radiodetection Ltd | Locating objects |
US5868210A (en) * | 1995-03-27 | 1999-02-09 | Baker Hughes Incorporated | Multi-lateral wellbore systems and methods for forming same |
US6581455B1 (en) | 1995-03-31 | 2003-06-24 | Baker Hughes Incorporated | Modified formation testing apparatus with borehole grippers and method of formation testing |
US5653286A (en) | 1995-05-12 | 1997-08-05 | Mccoy; James N. | Downhole gas separator |
CN1062330C (en) * | 1995-05-25 | 2001-02-21 | 中国矿业大学 | Propulsion air-feeding type coal underground gasifying furnace |
US5584605A (en) | 1995-06-29 | 1996-12-17 | Beard; Barry C. | Enhanced in situ hydrocarbon removal from soil and groundwater |
CN2248254Y (en) | 1995-08-09 | 1997-02-26 | 封长旺 | Soft-axis deep well pump |
US5706871A (en) | 1995-08-15 | 1998-01-13 | Dresser Industries, Inc. | Fluid control apparatus and method |
BR9610373A (en) | 1995-08-22 | 1999-12-21 | Western Well Toll Inc | Traction-thrust hole tool |
US5785133A (en) | 1995-08-29 | 1998-07-28 | Tiw Corporation | Multiple lateral hydrocarbon recovery system and method |
US5697445A (en) | 1995-09-27 | 1997-12-16 | Natural Reserves Group, Inc. | Method and apparatus for selective horizontal well re-entry using retrievable diverter oriented by logging means |
JPH09116492A (en) | 1995-10-18 | 1997-05-02 | Nec Corp | Wavelength multiplex light amplifying/repeating method/ device |
AUPN703195A0 (en) | 1995-12-08 | 1996-01-04 | Bhp Australia Coal Pty Ltd | Fluid drilling system |
US5680901A (en) | 1995-12-14 | 1997-10-28 | Gardes; Robert | Radial tie back assembly for directional drilling |
US5914798A (en) | 1995-12-29 | 1999-06-22 | Mci Communications Corporation | Restoration systems for an optical telecommunications network |
US5941308A (en) | 1996-01-26 | 1999-08-24 | Schlumberger Technology Corporation | Flow segregator for multi-drain well completion |
US6457540B2 (en) | 1996-02-01 | 2002-10-01 | Robert Gardes | Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings |
US7185718B2 (en) | 1996-02-01 | 2007-03-06 | Robert Gardes | Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings |
US6065550A (en) | 1996-02-01 | 2000-05-23 | Gardes; Robert | Method and system for drilling and completing underbalanced multilateral wells utilizing a dual string technique in a live well |
US6283216B1 (en) | 1996-03-11 | 2001-09-04 | Schlumberger Technology Corporation | Apparatus and method for establishing branch wells from a parent well |
US6056059A (en) | 1996-03-11 | 2000-05-02 | Schlumberger Technology Corporation | Apparatus and method for establishing branch wells from a parent well |
US5944107A (en) * | 1996-03-11 | 1999-08-31 | Schlumberger Technology Corporation | Method and apparatus for establishing branch wells at a node of a parent well |
US6564867B2 (en) | 1996-03-13 | 2003-05-20 | Schlumberger Technology Corporation | Method and apparatus for cementing branch wells from a parent well |
US5775433A (en) | 1996-04-03 | 1998-07-07 | Halliburton Company | Coiled tubing pulling tool |
US5690390A (en) | 1996-04-19 | 1997-11-25 | Fmc Corporation | Process for solution mining underground evaporite ore formations such as trona |
GB2347158B (en) | 1996-05-01 | 2000-11-22 | Baker Hughes Inc | Methods of recovering hydrocarbons from a producing zone |
US6547006B1 (en) * | 1996-05-02 | 2003-04-15 | Weatherford/Lamb, Inc. | Wellbore liner system |
US5676207A (en) | 1996-05-20 | 1997-10-14 | Simon; Philip B. | Soil vapor extraction system |
US5957539A (en) | 1996-07-19 | 1999-09-28 | Gaz De France (G.D.F.) Service National | Process for excavating a cavity in a thin salt layer |
AU4149397A (en) * | 1996-08-30 | 1998-03-19 | Camco International, Inc. | Method and apparatus to seal a junction between a lateral and a main wellbore |
AU4819797A (en) | 1996-10-08 | 1998-05-05 | Baker Hughes Incorporated | A method of forming and servicing wellbores from a main wellbore |
US6012520A (en) | 1996-10-11 | 2000-01-11 | Yu; Andrew | Hydrocarbon recovery methods by creating high-permeability webs |
US5775443A (en) | 1996-10-15 | 1998-07-07 | Nozzle Technology, Inc. | Jet pump drilling apparatus and method |
US6089322A (en) | 1996-12-02 | 2000-07-18 | Kelley & Sons Group International, Inc. | Method and apparatus for increasing fluid recovery from a subterranean formation |
US5867289A (en) | 1996-12-24 | 1999-02-02 | International Business Machines Corporation | Fault detection for all-optical add-drop multiplexer |
RU2097536C1 (en) | 1997-01-05 | 1997-11-27 | Открытое акционерное общество "Удмуртнефть" | Method of developing irregular multiple-zone oil deposit |
US5853224A (en) | 1997-01-22 | 1998-12-29 | Vastar Resources, Inc. | Method for completing a well in a coal formation |
US5863283A (en) * | 1997-02-10 | 1999-01-26 | Gardes; Robert | System and process for disposing of nuclear and other hazardous wastes in boreholes |
US5871260A (en) | 1997-02-11 | 1999-02-16 | Delli-Gatti, Jr.; Frank A. | Mining ultra thin coal seams |
US5845710A (en) | 1997-02-13 | 1998-12-08 | Halliburton Energy Services, Inc. | Methods of completing a subterranean well |
US5884704A (en) | 1997-02-13 | 1999-03-23 | Halliburton Energy Services, Inc. | Methods of completing a subterranean well and associated apparatus |
US5938004A (en) | 1997-02-14 | 1999-08-17 | Consol, Inc. | Method of providing temporary support for an extended conveyor belt |
US6019173A (en) * | 1997-04-04 | 2000-02-01 | Dresser Industries, Inc. | Multilateral whipstock and tools for installing and retrieving |
US6030048A (en) * | 1997-05-07 | 2000-02-29 | Tarim Associates For Scientific Mineral And Oil Exploration Ag. | In-situ chemical reactor for recovery of metals or purification of salts |
US20020043404A1 (en) * | 1997-06-06 | 2002-04-18 | Robert Trueman | Erectable arm assembly for use in boreholes |
US5832958A (en) | 1997-09-04 | 1998-11-10 | Cheng; Tsan-Hsiung | Faucet |
TW411471B (en) | 1997-09-17 | 2000-11-11 | Siemens Ag | Memory-cell device |
US5868202A (en) | 1997-09-22 | 1999-02-09 | Tarim Associates For Scientific Mineral And Oil Exploration Ag | Hydrologic cells for recovery of hydrocarbons or thermal energy from coal, oil-shale, tar-sands and oil-bearing formations |
US6244340B1 (en) | 1997-09-24 | 2001-06-12 | Halliburton Energy Services, Inc. | Self-locating reentry system for downhole well completions |
US6050335A (en) | 1997-10-31 | 2000-04-18 | Shell Oil Company | In-situ production of bitumen |
US5988278A (en) | 1997-12-02 | 1999-11-23 | Atlantic Richfield Company | Using a horizontal circular wellbore to improve oil recovery |
US5934390A (en) | 1997-12-23 | 1999-08-10 | Uthe; Michael | Horizontal drilling for oil recovery |
US6119771A (en) | 1998-01-27 | 2000-09-19 | Halliburton Energy Services, Inc. | Sealed lateral wellbore junction assembled downhole |
US6062306A (en) | 1998-01-27 | 2000-05-16 | Halliburton Energy Services, Inc. | Sealed lateral wellbore junction assembled downhole |
US6119776A (en) | 1998-02-12 | 2000-09-19 | Halliburton Energy Services, Inc. | Methods of stimulating and producing multiple stratified reservoirs |
US6024171A (en) * | 1998-03-12 | 2000-02-15 | Vastar Resources, Inc. | Method for stimulating a wellbore penetrating a solid carbonaceous subterranean formation |
US6065551A (en) | 1998-04-17 | 2000-05-23 | G & G Gas, Inc. | Method and apparatus for rotary mining |
US6263965B1 (en) | 1998-05-27 | 2001-07-24 | Tecmark International | Multiple drain method for recovering oil from tar sand |
US6135208A (en) | 1998-05-28 | 2000-10-24 | Halliburton Energy Services, Inc. | Expandable wellbore junction |
US6244338B1 (en) | 1998-06-23 | 2001-06-12 | The University Of Wyoming Research Corp., | System for improving coalbed gas production |
US6179054B1 (en) * | 1998-07-31 | 2001-01-30 | Robert G Stewart | Down hole gas separator |
RU2136566C1 (en) | 1998-08-07 | 1999-09-10 | Предприятие "Кубаньгазпром" | Method of building and operation of underground gas storage in sandwich-type nonuniform low penetration slightly cemented terrigenous reservoirs with underlaying water-bearing stratum |
GB2342670B (en) * | 1998-09-28 | 2003-03-26 | Camco Int | High gas/liquid ratio electric submergible pumping system utilizing a jet pump |
US6892816B2 (en) | 1998-11-17 | 2005-05-17 | Schlumberger Technology Corporation | Method and apparatus for selective injection or flow control with through-tubing operation capacity |
US7048049B2 (en) | 2001-10-30 | 2006-05-23 | Cdx Gas, Llc | Slant entry well system and method |
US6454000B1 (en) | 1999-11-19 | 2002-09-24 | Cdx Gas, Llc | Cavity well positioning system and method |
US7025154B2 (en) * | 1998-11-20 | 2006-04-11 | Cdx Gas, Llc | Method and system for circulating fluid in a well system |
US8376052B2 (en) | 1998-11-20 | 2013-02-19 | Vitruvian Exploration, Llc | Method and system for surface production of gas from a subterranean zone |
US6988548B2 (en) * | 2002-10-03 | 2006-01-24 | Cdx Gas, Llc | Method and system for removing fluid from a subterranean zone using an enlarged cavity |
US20040035582A1 (en) * | 2002-08-22 | 2004-02-26 | Zupanick Joseph A. | System and method for subterranean access |
US6425448B1 (en) | 2001-01-30 | 2002-07-30 | Cdx Gas, L.L.P. | Method and system for accessing subterranean zones from a limited surface area |
US6662870B1 (en) * | 2001-01-30 | 2003-12-16 | Cdx Gas, L.L.C. | Method and system for accessing subterranean deposits from a limited surface area |
US6681855B2 (en) * | 2001-10-19 | 2004-01-27 | Cdx Gas, L.L.C. | Method and system for management of by-products from subterranean zones |
US8297377B2 (en) | 1998-11-20 | 2012-10-30 | Vitruvian Exploration, Llc | Method and system for accessing subterranean deposits from the surface and tools therefor |
US6280000B1 (en) * | 1998-11-20 | 2001-08-28 | Joseph A. Zupanick | Method for production of gas from a coal seam using intersecting well bores |
US6679322B1 (en) * | 1998-11-20 | 2004-01-20 | Cdx Gas, Llc | Method and system for accessing subterranean deposits from the surface |
US6708764B2 (en) * | 2002-07-12 | 2004-03-23 | Cdx Gas, L.L.C. | Undulating well bore |
US6598686B1 (en) | 1998-11-20 | 2003-07-29 | Cdx Gas, Llc | Method and system for enhanced access to a subterranean zone |
US7073595B2 (en) | 2002-09-12 | 2006-07-11 | Cdx Gas, Llc | Method and system for controlling pressure in a dual well system |
US6250391B1 (en) * | 1999-01-29 | 2001-06-26 | Glenn C. Proudfoot | Producing hydrocarbons from well with underground reservoir |
MY120832A (en) | 1999-02-01 | 2005-11-30 | Shell Int Research | Multilateral well and electrical transmission system |
RU2176311C2 (en) | 1999-08-16 | 2001-11-27 | ОАО "Томскгазпром" | Method of development of gas condensate-oil deposit |
DE19939262C1 (en) | 1999-08-19 | 2000-11-09 | Becfield Drilling Services Gmb | Borehole measuring device uses stator and cooperating rotor for providing coded pressure pulses for transmission of measured values to surface via borehole rinsing fluid |
US6199633B1 (en) * | 1999-08-27 | 2001-03-13 | James R. Longbottom | Method and apparatus for intersecting downhole wellbore casings |
US6223839B1 (en) | 1999-08-30 | 2001-05-01 | Phillips Petroleum Company | Hydraulic underreamer and sections for use therein |
US7096976B2 (en) | 1999-11-05 | 2006-08-29 | Halliburton Energy Services, Inc. | Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
WO2001044620A1 (en) | 1999-12-14 | 2001-06-21 | Shell Internationale Research Maatschappij B.V. | System for producing de-watered oil |
UA37720A (en) | 2000-04-07 | 2001-05-15 | Інститут геотехнічної механіки НАН України | Method for degassing extraction section of mine |
NO312312B1 (en) | 2000-05-03 | 2002-04-22 | Psl Pipeline Process Excavatio | Device by well pump |
CN1451075A (en) | 2000-05-16 | 2003-10-22 | 奥梅加石油公司 | Method and apparatus for hydrocarbon subterranean recovery |
RU2179234C1 (en) | 2000-05-19 | 2002-02-10 | Открытое акционерное общество "Татнефть" Татарский научно-исследовательский и проектный институт нефти "ТатНИПИнефть" | Method of developing water-flooded oil pool |
US6590202B2 (en) | 2000-05-26 | 2003-07-08 | Precision Drilling Technology Services Group Inc. | Standoff compensation for nuclear measurements |
US6566649B1 (en) | 2000-05-26 | 2003-05-20 | Precision Drilling Technology Services Group Inc. | Standoff compensation for nuclear measurements |
US20020023754A1 (en) | 2000-08-28 | 2002-02-28 | Buytaert Jean P. | Method for drilling multilateral wells and related device |
US6561277B2 (en) | 2000-10-13 | 2003-05-13 | Schlumberger Technology Corporation | Flow control in multilateral wells |
AU2002224445A1 (en) * | 2000-10-26 | 2002-05-06 | Joe E. Guyer | Method of generating and recovering gas from subsurface formations of coal, carbonaceous shale and organic-rich shales |
US6457525B1 (en) | 2000-12-15 | 2002-10-01 | Exxonmobil Oil Corporation | Method and apparatus for completing multiple production zones from a single wellbore |
US7243738B2 (en) | 2001-01-29 | 2007-07-17 | Robert Gardes | Multi seam coal bed/methane dewatering and depressurizing production system |
US6923275B2 (en) | 2001-01-29 | 2005-08-02 | Robert Gardes | Multi seam coal bed/methane dewatering and depressurizing production system |
US6639210B2 (en) | 2001-03-14 | 2003-10-28 | Computalog U.S.A., Inc. | Geometrically optimized fast neutron detector |
CA2344627C (en) | 2001-04-18 | 2007-08-07 | Northland Energy Corporation | Method of dynamically controlling bottom hole circulating pressure in a wellbore |
GB2379508B (en) | 2001-04-23 | 2005-06-08 | Computalog Usa Inc | Electrical measurement apparatus and method |
US6604910B1 (en) | 2001-04-24 | 2003-08-12 | Cdx Gas, Llc | Fluid controlled pumping system and method |
US6497556B2 (en) | 2001-04-24 | 2002-12-24 | Cdx Gas, Llc | Fluid level control for a downhole well pumping system |
US6571888B2 (en) | 2001-05-14 | 2003-06-03 | Precision Drilling Technology Services Group, Inc. | Apparatus and method for directional drilling with coiled tubing |
US6575255B1 (en) | 2001-08-13 | 2003-06-10 | Cdx Gas, Llc | Pantograph underreamer |
US6644422B1 (en) | 2001-08-13 | 2003-11-11 | Cdx Gas, L.L.C. | Pantograph underreamer |
US6591922B1 (en) | 2001-08-13 | 2003-07-15 | Cdx Gas, Llc | Pantograph underreamer and method for forming a well bore cavity |
US6595302B1 (en) | 2001-08-17 | 2003-07-22 | Cdx Gas, Llc | Multi-blade underreamer |
US6595301B1 (en) | 2001-08-17 | 2003-07-22 | Cdx Gas, Llc | Single-blade underreamer |
RU2205935C1 (en) | 2001-09-20 | 2003-06-10 | Общество с ограниченной ответственностью "ТюменНИИгипрогаз" | Method of multiple hole construction |
US6581685B2 (en) | 2001-09-25 | 2003-06-24 | Schlumberger Technology Corporation | Method for determining formation characteristics in a perforated wellbore |
US6962030B2 (en) * | 2001-10-04 | 2005-11-08 | Pd International Services, Inc. | Method and apparatus for interconnected, rolling rig and oilfield building(s) |
US6585061B2 (en) | 2001-10-15 | 2003-07-01 | Precision Drilling Technology Services Group, Inc. | Calculating directional drilling tool face offsets |
US6591903B2 (en) | 2001-12-06 | 2003-07-15 | Eog Resources Inc. | Method of recovery of hydrocarbons from low pressure formations |
US6577129B1 (en) | 2002-01-19 | 2003-06-10 | Precision Drilling Technology Services Group Inc. | Well logging system for determining directional resistivity using multiple transmitter-receiver groups focused with magnetic reluctance material |
US6646441B2 (en) | 2002-01-19 | 2003-11-11 | Precision Drilling Technology Services Group Inc. | Well logging system for determining resistivity using multiple transmitter-receiver groups operating at three frequencies |
US6722452B1 (en) * | 2002-02-19 | 2004-04-20 | Cdx Gas, Llc | Pantograph underreamer |
US6968893B2 (en) * | 2002-04-03 | 2005-11-29 | Target Drilling Inc. | Method and system for production of gas and water from a gas bearing strata during drilling and after drilling completion |
US7360595B2 (en) | 2002-05-08 | 2008-04-22 | Cdx Gas, Llc | Method and system for underground treatment of materials |
US6725922B2 (en) | 2002-07-12 | 2004-04-27 | Cdx Gas, Llc | Ramping well bores |
US6991047B2 (en) * | 2002-07-12 | 2006-01-31 | Cdx Gas, Llc | Wellbore sealing system and method |
US6991048B2 (en) * | 2002-07-12 | 2006-01-31 | Cdx Gas, Llc | Wellbore plug system and method |
US6976547B2 (en) * | 2002-07-16 | 2005-12-20 | Cdx Gas, Llc | Actuator underreamer |
US6851479B1 (en) * | 2002-07-17 | 2005-02-08 | Cdx Gas, Llc | Cavity positioning tool and method |
US7025137B2 (en) | 2002-09-12 | 2006-04-11 | Cdx Gas, Llc | Three-dimensional well system for accessing subterranean zones |
US8333245B2 (en) * | 2002-09-17 | 2012-12-18 | Vitruvian Exploration, Llc | Accelerated production of gas from a subterranean zone |
US6860147B2 (en) * | 2002-09-30 | 2005-03-01 | Alberta Research Council Inc. | Process for predicting porosity and permeability of a coal bed |
US6964308B1 (en) | 2002-10-08 | 2005-11-15 | Cdx Gas, Llc | Method of drilling lateral wellbores from a slant well without utilizing a whipstock |
AU2002952176A0 (en) | 2002-10-18 | 2002-10-31 | Cmte Development Limited | Drill head steering |
US6953088B2 (en) | 2002-12-23 | 2005-10-11 | Cdx Gas, Llc | Method and system for controlling the production rate of fluid from a subterranean zone to maintain production bore stability in the zone |
US7264048B2 (en) | 2003-04-21 | 2007-09-04 | Cdx Gas, Llc | Slot cavity |
US6932168B2 (en) | 2003-05-15 | 2005-08-23 | Cnx Gas Company, Llc | Method for making a well for removing fluid from a desired subterranean formation |
US7134494B2 (en) | 2003-06-05 | 2006-11-14 | Cdx Gas, Llc | Method and system for recirculating fluid in a well system |
AU2003244819A1 (en) | 2003-06-30 | 2005-01-21 | Petroleo Brasileiro S A-Petrobras | Method for, and the construction of, a long-distance well for the production, transport, storage and exploitation of mineral layers and fluids |
US7100687B2 (en) | 2003-11-17 | 2006-09-05 | Cdx Gas, Llc | Multi-purpose well bores and method for accessing a subterranean zone from the surface |
US7163063B2 (en) | 2003-11-26 | 2007-01-16 | Cdx Gas, Llc | Method and system for extraction of resources from a subterranean well bore |
US7207395B2 (en) | 2004-01-30 | 2007-04-24 | Cdx Gas, Llc | Method and system for testing a partially formed hydrocarbon well for evaluation and well planning refinement |
US7222670B2 (en) | 2004-02-27 | 2007-05-29 | Cdx Gas, Llc | System and method for multiple wells from a common surface location |
US7178611B2 (en) | 2004-03-25 | 2007-02-20 | Cdx Gas, Llc | System and method for directional drilling utilizing clutch assembly |
US7370701B2 (en) * | 2004-06-30 | 2008-05-13 | Halliburton Energy Services, Inc. | Wellbore completion design to naturally separate water and solids from oil and gas |
US7387165B2 (en) | 2004-12-14 | 2008-06-17 | Schlumberger Technology Corporation | System for completing multiple well intervals |
US7571771B2 (en) | 2005-05-31 | 2009-08-11 | Cdx Gas, Llc | Cavity well system |
US7543648B2 (en) | 2006-11-02 | 2009-06-09 | Schlumberger Technology Corporation | System and method utilizing a compliant well screen |
US20080149349A1 (en) | 2006-12-20 | 2008-06-26 | Stephane Hiron | Integrated flow control device and isolation element |
US7673676B2 (en) * | 2007-04-04 | 2010-03-09 | Schlumberger Technology Corporation | Electric submersible pumping system with gas vent |
-
1998
- 1998-11-20 US US09/197,687 patent/US6280000B1/en not_active Expired - Lifetime
-
1999
- 1999-11-19 PL PL99375241A patent/PL193558B1/en unknown
- 1999-11-19 PL PL99375242A patent/PL193559B1/en unknown
- 1999-11-19 CN CN200810133404.2A patent/CN101328791A/en active Pending
- 1999-11-19 CZ CZ20011757A patent/CZ20011757A3/en unknown
- 1999-11-19 EP EP05020737A patent/EP1619352B1/en not_active Expired - Lifetime
- 1999-11-19 PL PL99375237A patent/PL193561B1/en unknown
- 1999-11-19 US US09/444,029 patent/US6357523B1/en not_active Expired - Lifetime
- 1999-11-19 PL PL99348705A patent/PL190694B1/en unknown
- 1999-11-19 DE DE69937976T patent/DE69937976T2/en not_active Expired - Lifetime
- 1999-11-19 NZ NZ527146A patent/NZ527146A/en not_active IP Right Cessation
- 1999-11-19 PL PL375238A patent/PL192352B1/en unknown
- 1999-11-19 NZ NZ512303A patent/NZ512303A/en not_active IP Right Cessation
- 1999-11-19 AT AT03003550T patent/ATE334297T1/en not_active IP Right Cessation
- 1999-11-19 PL PL99375240A patent/PL193557B1/en unknown
- 1999-11-19 DE DE69942756T patent/DE69942756D1/en not_active Expired - Lifetime
- 1999-11-19 PL PL99375243A patent/PL193555B1/en unknown
- 1999-11-19 ES ES03003550T patent/ES2271398T3/en not_active Expired - Lifetime
- 1999-11-19 AU AU31018/00A patent/AU760896B2/en not_active Expired
- 1999-11-19 EP EP07021409A patent/EP1975369B1/en not_active Expired - Lifetime
- 1999-11-19 CN CN200510096640.8A patent/CN1776196B/en not_active Expired - Fee Related
- 1999-11-19 ES ES05020737T patent/ES2297582T3/en not_active Expired - Lifetime
- 1999-11-19 CA CA002483023A patent/CA2483023C/en not_active Expired - Fee Related
- 1999-11-19 ID IDW00200101332A patent/ID30391A/en unknown
- 1999-11-19 PL PL99375239A patent/PL193562B1/en unknown
- 1999-11-19 RU RU2008143916/03A patent/RU2505657C2/en not_active IP Right Cessation
- 1999-11-19 CA CA002441667A patent/CA2441667C/en not_active Expired - Fee Related
- 1999-11-19 CN CNB998155705A patent/CN100400794C/en not_active Expired - Fee Related
- 1999-11-19 EP EP03003550A patent/EP1316673B1/en not_active Expired - Lifetime
- 1999-11-19 CA CA002441671A patent/CA2441671C/en not_active Expired - Fee Related
- 1999-11-19 AT AT99965010T patent/ATE309449T1/en not_active IP Right Cessation
- 1999-11-19 CA CA002350504A patent/CA2350504C/en not_active Expired - Fee Related
- 1999-11-19 PL PL99375236A patent/PL193560B1/en unknown
- 1999-11-19 NZ NZ528538A patent/NZ528538A/en not_active IP Right Cessation
- 1999-11-19 CA CA002441672A patent/CA2441672C/en not_active Expired - Fee Related
- 1999-11-19 CN CN200510096639.5A patent/CN1727636B/en not_active Expired - Fee Related
- 1999-11-19 AT AT07021409T patent/ATE480694T1/en not_active IP Right Cessation
- 1999-11-19 AT AT05020737T patent/ATE383495T1/en not_active IP Right Cessation
- 1999-11-19 DE DE69932546T patent/DE69932546T2/en not_active Expired - Lifetime
- 1999-11-19 DE DE69928280T patent/DE69928280T2/en not_active Expired - Lifetime
- 1999-11-19 CN CN200710152916.9A patent/CN101158267B/en not_active Expired - Fee Related
- 1999-11-19 EP EP99965010A patent/EP1131535B1/en not_active Expired - Lifetime
- 1999-11-19 ES ES99965010T patent/ES2251254T3/en not_active Expired - Lifetime
- 1999-11-19 CA CA2661725A patent/CA2661725C/en not_active Expired - Fee Related
- 1999-11-19 CA CA002589332A patent/CA2589332C/en not_active Expired - Fee Related
- 1999-11-19 CA CA002447254A patent/CA2447254C/en not_active Expired - Fee Related
- 1999-11-19 CA CA2792184A patent/CA2792184A1/en not_active Abandoned
- 1999-11-19 RU RU2001117069/03A patent/RU2246602C2/en not_active IP Right Cessation
- 1999-11-19 WO PCT/US1999/027494 patent/WO2000031376A2/en active IP Right Grant
-
2001
- 2001-02-20 US US09/789,956 patent/US6478085B2/en not_active Expired - Lifetime
- 2001-02-20 US US09/791,033 patent/US6439320B2/en not_active Expired - Lifetime
- 2001-02-20 US US09/788,897 patent/US6732792B2/en not_active Expired - Fee Related
- 2001-05-15 ZA ZA200103917A patent/ZA200103917B/en unknown
- 2001-06-20 US US09/885,219 patent/US6561288B2/en not_active Expired - Lifetime
-
2002
- 2002-06-07 US US10/165,625 patent/US6688388B2/en not_active Expired - Fee Related
- 2002-06-07 US US10/165,627 patent/US6668918B2/en not_active Expired - Fee Related
- 2002-12-27 RU RU2002135347/03A patent/RU2259480C2/en not_active IP Right Cessation
-
2003
- 2003-01-22 AU AU2003200203A patent/AU2003200203B2/en not_active Expired
- 2003-08-15 US US10/641,856 patent/US6976533B2/en not_active Expired - Fee Related
-
2005
- 2005-06-09 AU AU2005202498A patent/AU2005202498B2/en not_active Expired
- 2005-08-11 RU RU2005125568/03A patent/RU2293833C1/en not_active IP Right Cessation
- 2005-12-20 US US11/312,041 patent/US20060096755A1/en not_active Abandoned
-
2006
- 2006-09-29 AU AU2006222767A patent/AU2006222767B2/en not_active Expired
- 2006-12-15 RU RU2006144731/03A patent/RU2338863C2/en not_active IP Right Cessation
-
2007
- 2007-08-24 AU AU2007211918A patent/AU2007211918B2/en not_active Expired
- 2007-08-24 AU AU2007211916A patent/AU2007211916B2/en not_active Expired
- 2007-08-24 AU AU2007211917A patent/AU2007211917B2/en not_active Expired
- 2007-09-14 AU AU2007216777A patent/AU2007216777B2/en not_active Expired
- 2007-10-31 US US11/981,939 patent/US8511372B2/en not_active Expired - Fee Related
- 2007-10-31 US US11/982,232 patent/US8297350B2/en not_active Expired - Fee Related
-
2011
- 2011-01-28 AU AU2011200364A patent/AU2011200364B2/en not_active Expired
-
2013
- 2013-11-06 RU RU2013149294/03A patent/RU2013149294A/en not_active Application Discontinuation
Patent Citations (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3347595A (en) * | 1965-05-03 | 1967-10-17 | Pittsburgh Plate Glass Co | Establishing communication between bore holes in solution mining |
US3934649A (en) * | 1974-07-25 | 1976-01-27 | The United States Of America As Represented By The United States Energy Research And Development Administration | Method for removal of methane from coalbeds |
US3961824A (en) * | 1974-10-21 | 1976-06-08 | Wouter Hugo Van Eek | Method and system for winning minerals |
US4037658A (en) * | 1975-10-30 | 1977-07-26 | Chevron Research Company | Method of recovering viscous petroleum from an underground formation |
US4089374A (en) * | 1976-12-16 | 1978-05-16 | In Situ Technology, Inc. | Producing methane from coal in situ |
US4220203A (en) * | 1977-12-06 | 1980-09-02 | Stamicarbon, B.V. | Method for recovering coal in situ |
US4299295A (en) * | 1980-02-08 | 1981-11-10 | Kerr-Mcgee Coal Corporation | Process for degasification of subterranean mineral deposits |
US4390067A (en) * | 1981-04-06 | 1983-06-28 | Exxon Production Research Co. | Method of treating reservoirs containing very viscous crude oil or bitumen |
US4442896A (en) * | 1982-07-21 | 1984-04-17 | Reale Lucio V | Treatment of underground beds |
US4532986A (en) * | 1983-05-05 | 1985-08-06 | Texaco Inc. | Bitumen production and substrate stimulation with flow diverter means |
US4544037A (en) * | 1984-02-21 | 1985-10-01 | In Situ Technology, Inc. | Initiating production of methane from wet coal beds |
US4702314A (en) * | 1986-03-03 | 1987-10-27 | Texaco Inc. | Patterns of horizontal and vertical wells for improving oil recovery efficiency |
US5016710A (en) * | 1986-06-26 | 1991-05-21 | Institut Francais Du Petrole | Method of assisted production of an effluent to be produced contained in a geological formation |
US5074360A (en) * | 1990-07-10 | 1991-12-24 | Guinn Jerry H | Method for repoducing hydrocarbons from low-pressure reservoirs |
US5246273A (en) * | 1991-05-13 | 1993-09-21 | Rosar Edward C | Method and apparatus for solution mining |
WO1994021889A2 (en) * | 1993-03-17 | 1994-09-29 | John North | Improvements in or relating to drilling and to the extraction of fluids |
US5450902A (en) * | 1993-05-14 | 1995-09-19 | Matthews; Cameron M. | Method and apparatus for producing and drilling a well |
US5411104A (en) * | 1994-02-16 | 1995-05-02 | Conoco Inc. | Coalbed methane drilling |
US5501273A (en) * | 1994-10-04 | 1996-03-26 | Amoco Corporation | Method for determining the reservoir properties of a solid carbonaceous subterranean formation |
US5462116A (en) * | 1994-10-26 | 1995-10-31 | Carroll; Walter D. | Method of producing methane gas from a coal seam |
US5501279A (en) * | 1995-01-12 | 1996-03-26 | Amoco Corporation | Apparatus and method for removing production-inhibiting liquid from a wellbore |
US5669444A (en) * | 1996-01-31 | 1997-09-23 | Vastar Resources, Inc. | Chemically induced stimulation of coal cleat formation |
US5720356A (en) * | 1996-02-01 | 1998-02-24 | Gardes; Robert | Method and system for drilling underbalanced radial wells utilizing a dual string technique in a live well |
DE19725996A1 (en) * | 1996-06-19 | 1998-01-02 | Robert R Talley | Method for conveying water from vertical water borehole system |
EP0819834A1 (en) * | 1996-07-19 | 1998-01-21 | Gaz De France (Service National) | Method for making a cavity in a thin-walled salt mine |
US5879057A (en) * | 1996-11-12 | 1999-03-09 | Amvest Corporation | Horizontal remote mining system, and method |
EP0875661A1 (en) * | 1997-04-28 | 1998-11-04 | Shell Internationale Researchmaatschappij B.V. | Method for moving equipment in a well system |
EP0952300A1 (en) * | 1998-03-27 | 1999-10-27 | Cooper Cameron Corporation | Method and apparatus for drilling a plurality of offshore underwater wells |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002029210A1 (en) * | 2000-10-02 | 2002-04-11 | Pompiliu Gheorghe Dinca | Draining network for producing oil |
WO2002059455A1 (en) * | 2001-01-24 | 2002-08-01 | Cdx Gas, L.L.C. | Method and system for enhanced access to a subterranean zone |
WO2002061233A1 (en) * | 2001-01-30 | 2002-08-08 | Cdx Gas, L.L.C. | Method and system for accessing subterranean zones from a limited surface area |
WO2002061238A1 (en) * | 2001-01-30 | 2002-08-08 | Cdx Gas, L.L.C. | Method and system for accessing a subterranean zone from a limited surface area |
US6681855B2 (en) * | 2001-10-19 | 2004-01-27 | Cdx Gas, L.L.C. | Method and system for management of by-products from subterranean zones |
US6708764B2 (en) * | 2002-07-12 | 2004-03-23 | Cdx Gas, L.L.C. | Undulating well bore |
US6725922B2 (en) * | 2002-07-12 | 2004-04-27 | Cdx Gas, Llc | Ramping well bores |
DE10320401B4 (en) * | 2003-05-06 | 2015-04-23 | Udo Adam | Process for mine gas production |
US6932168B2 (en) | 2003-05-15 | 2005-08-23 | Cnx Gas Company, Llc | Method for making a well for removing fluid from a desired subterranean formation |
CN100392209C (en) * | 2005-04-20 | 2008-06-04 | 太原理工大学 | Rock salt deposit horizontal chamber type oil-gas depot and its building method |
CN101699033B (en) * | 2009-10-27 | 2011-12-21 | 山西焦煤集团有限责任公司 | Device for pumping and draining water from downward hole of coal bed |
CN102086774A (en) * | 2011-01-17 | 2011-06-08 | 中联煤层气国家工程研究中心有限责任公司 | Drainage method of gas in coal bed |
CN102587981A (en) * | 2012-03-12 | 2012-07-18 | 中国石油大学(华东) | Underground salt cavern gas storage and building method thereof |
CN106930733A (en) * | 2017-05-10 | 2017-07-07 | 中国神华能源股份有限公司 | Coal bed gas group wells extraction system and method for construction |
RU2708743C1 (en) * | 2019-04-30 | 2019-12-11 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method of drilling offshoots from an openhole well horizontal part |
RU2709263C1 (en) * | 2019-04-30 | 2019-12-17 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method of drilling and development of offshoots from horizontal well |
RU2709262C1 (en) * | 2019-08-30 | 2019-12-17 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method of drilling and development of offshoot from horizontal well (versions) |
RU2771371C1 (en) * | 2021-08-23 | 2022-05-04 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Set of assemblies for increasing the filtration area of the bottomhole zone of an open horizontal well |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU760896B2 (en) | Method and system for accessing subterranean deposits from the surface | |
US6679322B1 (en) | Method and system for accessing subterranean deposits from the surface | |
AU2013213679A1 (en) | Method and system for accessing subterranean deposits from the surface |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 99815570.5 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
AK | Designated states |
Kind code of ref document: A3 Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
ENP | Entry into the national phase |
Ref document number: 2350504 Country of ref document: CA Ref document number: 2350504 Country of ref document: CA Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001/03917 Country of ref document: ZA Ref document number: 200103917 Country of ref document: ZA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 31018/00 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1999965010 Country of ref document: EP Ref document number: IN/PCT/2001/00417/DE Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2001/005013 Country of ref document: MX Ref document number: PV2001-1757 Country of ref document: CZ |
|
WWE | Wipo information: entry into national phase |
Ref document number: 512303 Country of ref document: NZ |
|
WWP | Wipo information: published in national office |
Ref document number: 1999965010 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: PV2001-1757 Country of ref document: CZ |
|
WWG | Wipo information: grant in national office |
Ref document number: 31018/00 Country of ref document: AU |
|
WWG | Wipo information: grant in national office |
Ref document number: 1999965010 Country of ref document: EP |