WO2000029710A2 - Wellbore flow control device - Google Patents
Wellbore flow control device Download PDFInfo
- Publication number
- WO2000029710A2 WO2000029710A2 PCT/US1999/026714 US9926714W WO0029710A2 WO 2000029710 A2 WO2000029710 A2 WO 2000029710A2 US 9926714 W US9926714 W US 9926714W WO 0029710 A2 WO0029710 A2 WO 0029710A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flow control
- control device
- piston
- valve seat
- sleeve member
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims abstract description 98
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 230000001276 controlling effect Effects 0.000 claims abstract description 9
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 230000004044 response Effects 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 25
- 238000004519 manufacturing process Methods 0.000 description 24
- 230000015572 biosynthetic process Effects 0.000 description 18
- 238000005755 formation reaction Methods 0.000 description 18
- 239000007789 gas Substances 0.000 description 17
- 238000011084 recovery Methods 0.000 description 14
- 229930195733 hydrocarbon Natural products 0.000 description 10
- 150000002430 hydrocarbons Chemical class 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 10
- 238000005067 remediation Methods 0.000 description 8
- 238000005553 drilling Methods 0.000 description 5
- 210000002445 nipple Anatomy 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001483 mobilizing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/02—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
- E21B23/12—Tool diverters
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
- E21B34/102—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for locking the closing element in open or closed position
-
- 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
- E21B43/14—Obtaining from a multiple-zone 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
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/028—Electrical or electro-magnetic connections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/877—With flow control means for branched passages
- Y10T137/87708—With common valve operator
- Y10T137/87772—With electrical actuation
Definitions
- the present invention relates to subsurface well completion equipment
- Hydrocarbon recovery volume from a vertically drilled well can be
- fluid recovery rate and the well's economic life can be increased by drilling a horizontal or highly deviated interval from a main wellbore radially outward into
- producing intervals usually contain hydrocarbons that have different physical and
- the vertical borehole interfaces with the lateral wellbore.
- U.S. Patent 5,388,648 discloses a method and apparatus for sealing the
- This completion method deals primarily with completion techniques prior to insertion of production tubing in the well. While it does address the penetration
- U.S. Patent 5,337,808 discloses a technique and apparatus for selective
- U.S. Patent 5,447,201 discloses a well completion system with selective remote surface control of individual producing zones to solve some of the above described problems.
- U.S. Patent 5,474,131 discloses a method for completing multi-lateral
- a flapper valve to enable selective entry to either a main wellbore or a lateral.
- invention is a system to recover fluids from a well that has either multiple
- these controlling means may be independent and redundant, to assure operation of the production system in the event of primary control failure;
- a well comprising a central casing adjacent at
- production tubing string located inside the casing is fixed by any of several well
- a surface activated flow control valve with an annularly openable
- orifice located between the packers, may be opened or closed upon receipt of a
- orifice can be adjusted from the surface control panel such that the rate of flow of hydrocarbons therefrom can be adjusted as operating conditions warrant.
- the present invention is a selectively operable flow
- control device for regulating fluid flow in a well, comprising: a body member
- valve seat a sleeve member movably disposed within the central bore of the body
- a piston connected to the sleeve member and movably disposed within the central bore of the body member in response to
- conduit being in fluid communication with a first side of the piston
- the sleeve member further includes at least one flow slot.
- the position holder includes a recessed profile in which a portion of the retaining member is engaged and movably disposed to hold the sleeve member in a plurality of discrete positions. Another feature of this aspect of the present invention is that the
- recessed profile includes a plurality of axial slots of varying lengths disposed circumferentially about the position holder and in substantially parallel
- each axial slot having a recessed portion and an elevated portion
- each axial slot being connected to its immediately neighboring axial slots by
- the recessed profile is disposed in an indexing cylinder rotatably
- indexing cylinder and the sleeve member are adapted to restrict longitudinal movement therebetween.
- the present invention is that the retaining member includes an elongate body
- cam finger at a distal end thereof engaged with and movably disposed
- elongate body being hingedly attached to one of the sleeve member and body
- the retaining member may further include means for biasing the retaining member into engagement
- Another feature of this aspect of the present invention is
- the retaining member is a spring-loaded detent pin.
- the device may further include means for causing pressure within a well annulus to force the first and second valve seats towards each other.
- the piston is an annular piston.
- the piston is at least one rod piston.
- the present invention may be a selectively operable flow
- control device for regulating fluid flow in a well, comprising: a body member
- valve seat a sleeve member movably disposed within the central bore of the body
- Another feature of this aspect of the present invention is that
- the device may further include means for biasing the sleeve member and the
- the present invention is that the biasing means includes pressurized gas.
- the device may further
- the device may further include a charging port connected to the body member through which pressurized gas is loaded into the device.
- the biasing means includes a spring.
- the biasing means includes pressure in a
- first valve seat is slidably disposed within the central bore and about the sleeve
- the spring is compressed between a shoulder in the central bore
- the sleeve member includes a first annular sealing surface for cooperable
- Another feature of this aspect of the present invention is that the sleeve member
- the piston includes a first recess in which a shoulder
- position holder includes a recessed profile in which a portion of the retaining
- the recessed profile includes a plurality of axial slots of varying lengths disposed circumferentially about the position holder and in substantially parallel relationship, each axial slot having a recessed portion and an elevated portion, and each axial slot being connected to its immediately neighboring axial
- the present invention is that the recessed profile is disposed in an indexing cylinder
- cylinder includes a flange received within a second recess in the piston.
- the device may further include means for biasing the retaining member into
- the retaining member is a spring-loaded detent pin.
- the device may further
- the piston is an annular piston. Another feature of this
- the piston is at least one rod piston.
- the present invention may be a selectively operable flow control device for regulating fluid flow in a well, comprising: a body member having a central bore extending therethrough, at least one flow port, and a first
- valve seat a sleeve member movably disposed within the central bore of the body member, and having a second valve seat adapted for cooperable sealing engagement with the first valve seat; an electric motor connected to the body
- the device may further
- Another feature of this aspect of the present invention is that the actuating
- the piston further includes a threaded rod, and the piston further includes a threaded
- the threaded rod being threadably disposed for longitudinal movement
- the piston includes a first recess in which a shoulder portion of
- the device further includes a compensator piston movably disposed within a compensator cylinder in the body member, a first side of the
- compensator piston being in fluid communication with a well annulus, and a second side of the compensator piston being in fluid communication with the
- the device may further include means connected to the electric motor for providing a
- first valve seat is biased towards its first
- Another feature of this aspect of the present invention is that
- first annular sealing surface for cooperable sealing
- valve seat on the sleeve member being engageable with the first valve seat on the
- the device may further include means for causing pressure within the device.
- the present invention may be a selectively operable flow control device for regulating fluid flow in a well, comprising: a body member
- a sleeve member movably disposed within the central bore of the body member, and having a second valve seat adapted for cooperable sealing engagement with the first valve seat; means for selectively controlling movement
- conduit means for transmitting energy to the movement means.
- Figure 1 is a schematic representation of a wellbore completed using one
- Figures 2 A-G taken together form a longitudinal section of one preferred embodiment of the present invention.
- Figures 2 A-G taken together form a longitudinal section of one preferred embodiment of the present invention.
- FIGS 4 A-B illustrate two cross sections of Figure 3 taken along line "4-
- Figure 4-A depicts the cross section with a rotating lateral access door shown in the open position
- Figure 4-B depicts the cross section with the rotating lateral access door shown in the closed position.
- Figure 5 illustrates a cross section of Figure 3E taken along line "5-5", without the service tools as shown therein.
- Figure 6 illustrates a cross section of Figure 3F taken along line "6-6", and depicts a locating, orienting and locking mechanism for anchoring the multilateral flow control system to the casing.
- Figure 7 illustrates a longitudinal section of Figure 5 taken along line "7-
- Figure 8 illustrates a cross section of Figure 3E taken along line "8-8"
- Figure 10 illustrates a cross section of Figure 9A taken along line "10-10".
- Figure 1 1 illustrates a cross section of Figure 9A taken along line "1 1-11".
- Figure 12 illustrates a cross section of Figure 9B taken along line "12-12".
- Figure 13 illustrates a cross section of Figure 9C taken along line "13-13".
- Figure 14 illustrates a cross section of Figure 9D taken along line "14-14".
- Figure 15 illustrates a planar projection of an outer cylindrical surface of a position holder shown in Figure 9C.
- Figure 16 illustrates a side view of an upper portion of the embodiment shown in Figures 9 A-D.
- Figure 18 illustrates a cross section of Figure 17B taken along line "18-
- Figure 19 illustrates a cross section of Figure 17B taken along line "19-
- Figure 20 illustrates a cross section of Figure 17C taken along line "20-
- Figure 21 illustrates a cross section of Figure 17C taken along line "21-
- Figure 22 illustrates a cross section of Figure 17D taken along line "22- 22".
- Figure 23 illustrates a cross section of Figure 17D taken along line "23-
- Figure 25 illustrates a cross section of Figure 24A taken along line "25-
- Figure 26 illustrates a cross section of Figure 24A taken along line "26-
- Figure 27 illustrates a cross section of Figure 24B taken along line "27-
- Figure 28 illustrates a cross section of Figure 24C taken along line "28- 28".
- Figure 29 illustrates a cross section of Figure 24C taken along line "29-
- Figure 30 illustrates a cross section of Figure 24C taken along line "SO-
- Figure 31 illustrates a longitudinal cross section of Figure 27 taken along
- the present invention is a system for remotely controlling multilateral
- invention includes enabling devices for automated remote control and access of
- control apparatus 26 of the present invention is located adjacent to a lower lateral
- Each fluid flow control apparatus 24 and 26 are the same as or
- apparatus 24 and 26 generally comprises a generally cylindrical mandrel body
- connection devices on one end thereof for interconnection to the production tubing 20.
- a selectively operable lateral access door is provided in the mandrel body for alternately permitting and preventing a service tool from laterally exiting the body therethrough and into a lateral wellbore.
- a selectively operable flow control valve is provided in the body for regulating fluid flow between the outside of the body and the central bore.
- a lateral access door 30 comprises an opening in the body and a door or plug member. The door may be moved
- elastomeric packers 32 are provided on separate bodies that are connected by
- the packers 32 are used to isolate fluid flow between producing zones 16
- a lowermost packer 36 is
- a tubing plug 42 which is well known, may be used to connect to a tubing plug 42.
- apparatus 26 has a flow control valve that is shown closed, and the upper fluid flow control apparatus 24 is shown with its flow control valve in the open
- Hydrocarbons 44 present therein will flow from the formation 16, through the
- An upper connector 48 is provided on a
- a first communication conduit 56 is connected to the mandrel body 50.
- the communication conduit 58 preferably, but not limited to hydraulic control communication, extend from the earth's surface into the mandrel 50.
- the and second 58 communication conduits communicate their respective signals to/from the earth's surface and into the mandrel 50 around a set of bearings 60 to slip joint 62.
- the electrical communication conduit or cable 56 connects at this location, while the hydraulic communication conduit 58 extends therepast.
- the bearings 60 reside in a rotating swivel joint 64, which allows the mandrel body 50 and its lateral access door 30 to be rotated relative to tubing 20, to ensure that the
- lateral access door 30 is properly aligned with the lateral wellbore. Further, the
- electrical communication conduit or cable 56 communicates with a first pressure
- transducer 66 to monitor annulus pressure
- a temperature and pressure sensor 68 to monitor annulus pressure
- transducer 70 to monitor tubing pressure. Signals from these transducers are
- a flow control position indicator 82 which provides the operator constant and instantaneous feedback as to the size of the opening selected.
- orifice 80 uses a coiled tubing deployed shifting tool 84 landed in a profile in the internal surface of the mandrel body 50. Weight applied to this shifting tool 84 is
- the electrical communication conduit or cable 56 further communicates
- depth and azimuthal orientation is controlled by a spring loaded, selective orienting key 98 on the mandrel body 50 which interacts with an orienting sleeve
- valve seat on the piston 76 are shown sealably engaged, thereby blocking fluid
- the lateral access door 92 is in the form of a plug member that is formed at
- a coiled tubing 108 or other well known remediation tool, can be
- a flexible tubing member 1 10 is shown attached to the coiled tubing 108, which is in turn,
- a selective orienting deflector tool 1 16 is shown set in a profile 1 18
- deflector tool 1 16 is located, oriented, and held in position by a set of locking
- Figure 4 A-B is a cross section taken at "A- A" of Figure 3-D. shown without the flexible tubing member 1 10 in place, and represents a view of the top of the rotating lateral access door 92.
- Figure 4-A illustrates the relationship of the
- Figure 4-B illustrates the relationship
- Figure 6 is a cross section taken at "6-6" of Figure 3-F and illustrates in cross section the
- FIG. 5 This diagram primarily depicts the manner in which the door seal 126
- Figure 3-E This shows the relationship of the casing nipple 124, the orienting deflector tool 1 16, the profile 1 18 formed in the interior surface of the upper fluid flow control apparatus 24, and how the locking keys 120 interact with the profile 1 18.
- the oil well production system of the present invention shows the relationship of the casing nipple 124, the orienting deflector tool 1 16, the profile 1 18 formed in the interior surface of the upper fluid flow control apparatus 24, and how the locking keys 120 interact with the profile 1 18.
- control panel 40 to close the lower fluid flow control apparatus 26, and open the
- Both rotating lateral access doors 30 would be configured closed. In this configuration, flow is blocked from both the
- tubing plug 42 The necessity of the tubing plug 42 can be eliminated by utilizing another flow control valve to meter flow from the lower formation as well.
- valve 130 Referring to Figure 9A, the valve 130
- a generally cylindrical body 132 having a central bore 134 extending
- valve seat 138 The valve 130 further includes a sleeve member 140 that is disposed for longitudinal movement within the central bore 134 of the body 132.
- the sleeve member 140 may include at least one flow slot 142, and a second valve seat 144 for cooperable sealing engagement with the first valve seat 138 on the body 132.
- a piston 146 may be connected to, or a part of, the sleeve 140, and may be sealably, slidably disposed within the central bore 134 of the body 132.
- the piston 146 may be an annular piston or at least one rod piston. As best shown in Figure
- a second hydraulic conduit 150 are connected between a source of hydraulic fluid,
- hydraulic conduit 148 is in fluid communication with a first side 152 of the piston
- the body 132 is controlled by application and/or removal of pressurized fluid from the first and second hydraulic conduits 148 and 150 to and from the piston
- the valve 130 may be provided with a position holder to enable an
- the position holder may be piovided in a variety of configurations In a specific embodiment, as shown in Figures 9C-9D and 13-15, the position
- holder may include a cammed indexer 160 having a recessed profile 162 ( Figure
- the retaining member may be connected to the sleeve member 140, and the other
- the recessed profile 162 may be formed in
- the sleeve member 140 or it may be formed in an indexing cylinder 166 disposed about the sleeve member 140 ( Figure 9C).
- the indexing cylinder 166 and sleeve member 140 may be fixed so as to prevent relative rotatable movement between the two, or the indexing cylinder 166 may be slidably disposed about the sleeve member 140 so as to permit relative rotatable movement.
- the indexing cylinder 166 may be slidably disposed about the sleeve member 140 so as to permit relative rotatable movement.
- the indexing cylinder 166 is disposed for rotatable movement
- the valve body 132 may include linear
- retaining member 164 may include an elongate body 182 having a cam finger 184
- a hinge pin 188 is disposed within the hinge bore
- the retaining member 164 may be hingedly connected to the valve body
- a biasing member 190 such as a spring
- retaining member 164 may be provided to bias the retaining member 164 into engagement with the recessed profile 162.
- Other embodiments of the retaining member 164 are within the
- the retaining member 164 may be a spring-loaded detent pin (not shown) that may be attached to the valve body 132.
- the recessed profile 162 will now be described, primarily with reference to Figure 15, which illustrates a planar projection of the recessed profile 162 in the indexing cylinder 166. As shown in Figure 15, the recessed profile 162 preferably includes a plurality of axial slots 192 of varying length disposed
- each of which are adapted to selectively receive the cam finger 184
- Each axial slot 192 includes a lower
- the upper portion 196 is recessed, or
- the pressure in the first hydraulic conduit 148 should momentarily be greater than the pressure in the second hydraulic conduit 150 for a period long enough to shift the cam finger 184 into engagement with the recessed upper portion 196 of the axial slot 192. Then the
- the cam finger 184 may be moved into the axial slot 192 having the desired length corresponding to the desired
- valve body 132
- valve 130 when the valve 130 is positioned within a well (not
- the sleeve member 140 is exposed to annulus pressure through the at least one flow port 136 in the valve body 132.
- the sleeve member 140 is exposed to annulus pressure through the at least one flow port 136 in the valve body 132.
- valve 130 may be designed such that the annulus pressure imparts an upward force to the sleeve member 140 to assist in maintaining it in its closed, or sealed, position. For example, this may be accomplished by making the outer diameter of the sleeve member 140 adjacent the interface of the first and second valve seats 138 and 144 ( Figure 9A) greater than the outer diameter of the sleeve member at some point below the at least one flow port 136, such as at dynamic seal 145
- first and second valve seats 138 and 144 are in contact.
- valve of the present invention is shown in Figures 17 through 23.
- valve 202 includes a generally cylindrical body 204 having a central bore 206 extending
- valve seat 210 In a specific embodiment, as shown in Figure 17B, the first valve
- seat 210 may be slidably disposed within the central bore 206, and movable
- first valve seat 204 may include a downstop shoulder 209 against which first valve seat 210
- valve 202 may further include a biasing mechanism, such as a
- the valve 202 further includes a sleeve member 212 ( Figures 17B and 17C) that is disposed for longitudinal movement within the central bore 206 of the body 204.
- the sleeve member 212 may include at least
- member 212 may also include a first annular sealing surface 217 for cooperable
- valve 202 is designed so that when the sleeve member 212 is being moved from
- annular sealing surface 219 on the valve body 204 is annular sealing surface 219 on the valve body 204.
- At least one piston such as a
- rod piston 218, may be connected to, or in contact with, the sleeve member 212,
- the piston 218 may be an annular piston. A first end 221 of the rod piston 218 is
- valve 202 may include three rod pistons 218, 218a and 218b, and pressurized fluid may be transmitted from the hydraulic conduit 226 to the rod pistons 218a and 218b via a first and a second fluid passageway 228 and 230, respectively.
- the rod piston may include three rod pistons 218, 218a and 218b, and pressurized fluid may be transmitted from the hydraulic conduit 226 to the rod pistons 218a and 218b via a first and a second fluid passageway 228 and 230, respectively.
- the rod piston may include three rod pistons 218, 218a and 218b, and pressurized fluid may be transmitted from the hydraulic conduit 226 to the rod pistons 218a and 218b via a first and a second fluid passageway 228 and 230, respectively.
- the rod piston may include three rod pistons 218, 218a and 218b, and pressurized fluid may be transmitted from the hydraulic conduit 226 to the rod pistons 218a and 218b via a first and a second fluid passageway
- annular end cap 225 may be received.
- the annular end cap 224 is connected, as
- the valve 202 may also be provided with a mechanism for causing
- valve 202 may include a source of
- pressurized gas such as pressurized nitrogen
- pressurized nitrogen which may be contained within a
- 232 may be coiled within a housing 234 formed within the body 204, and a lower
- portion 236 of the gas conduit 232 may extend outside the
- the gas conduit 232 is in fluid communication with a
- the gas conduit 232 may further include a fluid barrier, such as oil or silicone.
- sleeve member 212 may include a charging port 244 through which pressurized gas may be introduced into the valve 202.
- Mechanisms other than pressurized gas for causing upward movement of the sleeve member 212 are within the scope of the present invention, and may include, for example, a spring (not shown), annulus
- valve 202 may include a
- holder may include an indexing cylinder 246 that is slidably disposed within the
- the indexing cylinder 246 may also be rotatably disposed within the annular space 241 , as per bearings 248 and 250.
- the indexing cylinder 246 may also be rotatably disposed within the annular space 241 , as per bearings 248 and 250.
- 246 may also include a recessed profile, as discussed above and illustrated in
- the indexing cylinder 246 may include a
- indexing cylinder 246, so that the indexing cylinder 246 is movable in response to
- the position holder also includes a retaining
- valve 202 is pre-charged through the charging port 244 with sufficient pressurized gas to maintain the sleeve member 212 biased into its maximum upward, or normally- closed, position, as shown in Figures 17A-D, so that the first and second valve
- seats 210 and 216 are engaged to restrict fluid flow through the at least one flow port 208 in body 204.
- hydraulic fluid is applied from the hydraulic conduit 226 to the
- the desired position of the sleeve member 212 is selected by
- an operator at the earth's surface may remotely regulate
- valve seat 216 on the sleeve member 212 will come into contact with the first
- the sleeve member 212 will continue to move upwardly, thereby shifting the first valve seat 210 relative to the body 204 and compressing the wave spring 205, until the first annular sealing surface 217 on the sleeve member 212 comes into contact with the second annular sealing
- valve of the present invention is shown in Figures 24 through 31.
- selectively operable flow control valve of the present invention is electrically-
- valve 256 includes a generally cylindrical body 258 having a
- central bore 260 extending therethrough, at least one flow port 262 through a
- the first valve seat 264 may be slidably disposed within the central
- the body 258 may include a downstop shoulder 267 against which the first
- valve seat 264 abuts when in its first, or uncompressed, position (not shown).
- valve 256 may further include a biasing
- the valve 256 further includes a sleeve member 272 ( Figures 24A and 24B) that is disposed for longitudinal movement within the central bore 260 of the body 258.
- the sleeve member 272 may include at least one flow slot 274, and a second valve seat 276 for cooperable sealing engagement with the first valve seat 264 on the body 258.
- the sleeve member 272 may also include a first annular sealing surface 278
- valve 256 is designed so
- valve body 258 The mechanism of this embodiment for remotely shifting the sleeve
- conduit 282 having at least one electrical conductor 284 disposed therein is
- the at least one electrical conductor 284 may be passed through a sealed
- the electric motor 292 is attached to the valve body 258 and adapted to move the sleeve member 272 upon electrical actuation thereof.
- the electric motor 292 may include, or be connected to, a threaded rod 294, or ball
- the actuating member 300 may be a rod piston that is movably disposed within a lower cylinder 304 and an upper cylinder
- valve body 306 both of which cylinders 304 and 306 may be disposed within the valve body
- the rod piston 300 may include a recess 308 in
- the actuating member 300 may be an annular piston.
- annular end cap 312 is connected, as by threads, to a lower end of the sleeve
- the threaded rod 294 may be rotated in a
- fluid flow may be remotely regulated through the at least one flow
- valve 256 may also include a position indicator 314 that is connected to the at least one electrical conductor 284 and to the motor 292.
- the position indicator 314 will be described in detail below.
- the position indicator 314 may be a rotary variable differential
- RVDT right ventricular transformer
- threaded rod 294 may be an integral unit, of the type available from Astro
- the position indicator 314 may be an electromagnetic tachometer.
- the position indicator 314 may be a step counter for counting the number of times the stepper
- valve 314 may be an electrical resolver.
- 256 may further include an electronic module 316 connected between the
- module 316 may include hard-wired circuitry, and/or a microprocessor and
- the invention may also include a mechanism for compensating for temperature - induced pressure variations between pressures in the well annulus (not shown) and in the enclosed annular space 290, which may contain an incompressible fluid.
- the compensating mechanism may include a
- compensator housing 318 having a compensator cylinder 320 in which a compensator piston 322 is movably disposed.
- the compensator housing 318 may be connected to or a part of the valve body 258.
- a first side 324 of the compensator piston 322 is in fluid communication with the well annulus, such as
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9915408A BR9915408A (en) | 1998-11-17 | 1999-11-12 | selectively operable flow control device for regulating fluid flow in a well |
GB0110451A GB2359836B (en) | 1998-11-17 | 1999-11-12 | Wellbore flow control device |
AU16179/00A AU1617900A (en) | 1998-11-17 | 1999-11-12 | Wellbore flow control device |
CA 2349391 CA2349391C (en) | 1998-11-17 | 1999-11-12 | Wellbore flow control device |
NO20012418A NO321323B1 (en) | 1998-11-17 | 2001-05-16 | Device for controlling flow in a wellbore |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/192,855 US6237683B1 (en) | 1996-04-26 | 1998-11-17 | Wellbore flow control device |
US09/192,855 | 1998-11-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000029710A2 true WO2000029710A2 (en) | 2000-05-25 |
WO2000029710A3 WO2000029710A3 (en) | 2000-11-23 |
Family
ID=22711309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/026714 WO2000029710A2 (en) | 1998-11-17 | 1999-11-12 | Wellbore flow control device |
Country Status (7)
Country | Link |
---|---|
US (3) | US6237683B1 (en) |
AU (1) | AU1617900A (en) |
BR (1) | BR9915408A (en) |
CA (1) | CA2349391C (en) |
GB (1) | GB2359836B (en) |
NO (2) | NO321323B1 (en) |
WO (1) | WO2000029710A2 (en) |
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US6237683B1 (en) | 1996-04-26 | 2001-05-29 | Camco International Inc. | Wellbore flow control device |
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Also Published As
Publication number | Publication date |
---|---|
WO2000029710A3 (en) | 2000-11-23 |
US6308783B2 (en) | 2001-10-30 |
NO20012418D0 (en) | 2001-05-16 |
US20020029886A1 (en) | 2002-03-14 |
GB2359836B (en) | 2003-10-01 |
US6494264B2 (en) | 2002-12-17 |
GB2359836A (en) | 2001-09-05 |
GB0110451D0 (en) | 2001-06-20 |
BR9915408A (en) | 2006-04-18 |
NO20012418L (en) | 2001-07-11 |
CA2349391C (en) | 2007-04-10 |
NO20052087L (en) | 2000-05-18 |
AU1617900A (en) | 2000-06-05 |
US6237683B1 (en) | 2001-05-29 |
US20010015276A1 (en) | 2001-08-23 |
NO321323B1 (en) | 2006-04-24 |
CA2349391A1 (en) | 2000-05-25 |
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