Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS1681523 A
Publication typeGrant
Publication dateAug 21, 1928
Filing dateMar 26, 1927
Priority dateMar 26, 1927
Publication numberUS 1681523 A, US 1681523A, US-A-1681523, US1681523 A, US1681523A
InventorsDowney Patrick V, Wendroff Clifford H
Original AssigneeDowney Patrick V, Wendroff Clifford H
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for heating oil wells
US 1681523 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

P V DOWNEY ET AL APPARATUS FOR HEATING OIL WELLS Filed March 26, 1927 Aug. 21, 1928.

gmm rflow 74inch? y 1902127261 Patented Aug. 21, 1928.

1,681,523 PATENT OFFICE.

PATRICK V. DOWNEY AND CLIFFORD H. WEN DROFF, 01'' DENVER, COLORADO.

APPARATUS FOR HEATING OIL WELLS.

Application filed March 26, 1927.

This invention relates to improvements in devices for heating the interior of oil wells.

It is well known that many oil wells become unproductive because the paraffin contained in the oil solidifies and seals the pores through which the oil enters the well. In order to bring these wells'back to productiveness, it is necessary to remove the paraflin seal from the walls of the well so that the oil from the surrounding soil can enter. As paraflin will melt at a very moderate degree of heat, many attempts have been made to introduce a suiiicient quantity of heat into the wells to liquefy the parafiin to such an extent that can be removed by pumping. A No attempt will be made to review the prlor art except to state that many of the proposed methods have failed became they required too complicated an apparatus and were too expensive. I

It is the object of this invention to produce an apparatus of very simple construction that can be installed in the well without making it necessary to withdraw the pump line and which can be left in position as long as the well is productive.

Another object of this invention is to produce an apparatus in which the heat is generated by means of an electric current and which, in addition to heating the lower end of the well, will also heat the pump line so that the molten paraffin will not solidify within the pump pipes and render the pump in-' operative.

The above and other objects that may be come apparent as this description proceeds are obtained by means of an arrangement and combination of parts that will now be described in detail, and reference for this purpose will now be had to the accompanylng drawing in which the invention has been illustrated and in which:

F ig. 1 is a section through a well showing my device in place therein;

Fig. 2 is a section taken on line 22, Fig. 1; and r Fig. 3 is a section taken on line 3-3, Fig. 1.

Numeral 1 represents the surface of the ground and 2 the casing wit-l1 which the well is lined. The well has been shown as terminating in a sump 3 through the wall 4 of which the oil enters. The ordinary pump line is represented by 5; this terminates in a strainer 6 located near the bottom of the sump. The

casing has been shown as of the same diame- Serial N 0. 178,679.

through the former of which the pipe 5 extends. A collar 13 is secured to the pipe 5 and rests on the upper surface of the plate from which the pump line is supported.

Through opening 12, the pipe 14 of the heating apparatus extends. Pipe 14, like pipe 5, is provided with a collar 15 that is clamped to it by means of a set screw 16 and extends downwardly to a point near the bottom of the sump where it terminates in a conical cap 17. A T 18 is secured to the upper end of pipe 14. A connector 19 extends from the upper end of the T and secured to this is a cap 20, which has a central opening 21. An insulating bushing 22 extends through the opening in the cap and is provided with anopening for the reception of the pipe 23. A collar 24 is secured to the pipe 23 by means of a set screw 25. Pipe 23 extends almost the entire length of pipe 14 and terminates near the bottom thereof in a coupling 26. Wherever the pipe 23 is provided with a coupling, it is also provided with an insulating ring 27 that serves to hold it properly spaced within the pipe 14. Heating elements consisting of tubular spools 28 about which is wound a coil of highly refractory resistance wire 29 are threaded onto pipe 23 and spaced therealong.

Clamps 30 are secured to the pipes directly below each one of the spools 28 and support the latter. One end of the wire 29 is elect-rically connected with the clamp 30 and is 7 therefore electrically connected with pipe 23 which serves as one conductor of the electric circuit. The other ends of coils 29 are connected in parallel to an asbestos coveredinsulating conductor 31. A conductor "32 extends from the upper end of pipe 23 to the switch 33.

A centrifugal fan 34 has its intake port connected to the side opening in the T 18 by means of a pipe 35 and has its outlet port connected tothe upper end of the pipe 23 by means of a flexible tube 36. An electric motor 37 is di rectly connected with fan 34. The drawing shows a generator G which represents, broadly, a sourceoflcurrcnt, and a controller R by in'parallel and are therefore independent of one another so that if one should burn out the others will still function.

\Vhen the heater is in use current is permitted to flow through the coils of the heating elements so as to generate heat. Since these coils are located within a closed pipe, the interior of the pipe very soon becomes very hot and'some of this heat is transmitted to the material of pipe 14 which thereby becomes heated. In order to distribute the heat along the entire length of the pipe the fan 34 is provided. I This fan sucks the air from the top of pipe 14 and blows it down through pipe 23 thereby producing an air current that travels upwardly-along the interior of pipe 14. This current of air need not be very strong but should be sufficient to prevent the formation of points of excessively high temperature.

The greater number of heating elements may be located near the bottom of pipe 1% and therefore the greater amount of heat will be generated there than at any other point. The heat from the pipe 14: will raise the tear perature of the interior of the well so as to cause the parafiin to melt. Since the heater extends parallel with the pump line the latter will be heated and can be maintained at a temperature above that of the melting point of paratfin so that the latter will not solidify on the interior of the pump line, while it is being removed from the well.

Special attention is called to the feature 05 circulating air through the interior of the heater pipe. Since the same air is continual- 1y circulated, there will be no appreciable loss of heat due to this, but the motion of the air will distribute the heat uniformly along the interior of the pipe. The idea of heating the pump line throughout its entire length is also believed to .be new.

Since the heating elements are all contained within pipe 14, that is an ordinary two-inch pipe, the heater can be put in place without removing the pump and can be retained as long as necessary.

This application is continuation, in part, of application Serial Number 161,121, filed January 14, 1927.

Having thus described the invention what is claimed as new is:

1. An apparatus for heating oil wells, com prising, in combination, a pipe adapted to extend from the top of the well to the bottom thereof, a pipe of smaller diameter located within the first pipe and extending substantially from one end thereof to the other, a plurality of electric heater elements secured to the smaller pipe and spaced from each other, means for conducting an electric current t the hea i g elements, and means for causing a current of air to flow downwardly through the smaller pipe and upwardl within the larger pipe whereby the electric eaters will be subjected to a flow of air that tends to distribute the heat.

2. An apparatus for heating oil wells, comprising, in combination, a pipe havin its lower end closed and adapted to extend rom the top to the bottom of a well, a smaller pipe located within the first mentioned pipe electric heating elements secured to the outslde of the smaller pipe and spaced therealong, means for conducting an electric current to the heating elements and means for circulating air in one direction through the smaller pipe and in the opposite direction through the annular space between the pipes.

3. An apparatus for heating oil wells, comprising, in combination, a pipe having its lower end closed and adapted to extend from the top to the bottom of a well, a smaller pipe located within the first mentioned pipe, electric heating elements secured to the outside of the smaller pipe and spaced therealong, means for conducting an electric currentto the heating elements, insulators secured to the smaller pipe for holding it centered in the larger pipe and means comprising a pump for causing a current of air to flow in one direction through the smaller pipe and in the opposite direction through the larger pipe.

. 4. An apparatus for heating the interior of an oil well comprising, in combination, a pipe extending from the top of the well to a point near its bottom, means for closing both ends of said pipe, a pipe of smaller diameter pas ing through the upper end closure and extending downwardly to a point near the bottom closure of the first pipe, a plurality of electric heating elements secured to the smaller pipe, means for conducting an electric current to the heaters and means for causing the air dthin said pipes to circulate.

5. An apparatus for heating the interior of an oil well comprising, in combination, a pipe extending from the top of the well to a point near its bottom, means for closing both ends of said pipe, a pipe of smaller diameter passing through the upper end closure and extending downwardly to a point near the bottom closure of the first pipe, a plurality of electric heating elements secured to the smaller pipe, means for conducting an electric current to the heaters and means for causing the air within said pipes to circulate, said last named means comprising an air pump having its intake port connected with the annular space between the pipes near the top of the outer pipe and having its delivery port connected with the upper end of the smaller pipe.

In testimony whereof we afiix our signa- PATRICK V. DOWNEY. CLIFFORD H. WENDROFF,

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2632836 *Nov 8, 1949Mar 24, 1953Thermactor CompanyOil well heater
US2836248 *Nov 13, 1951May 27, 1958Union Oil CoWell heater
US5539853 *Jun 19, 1995Jul 23, 1996Noranda, Inc.Downhole heating system with separate wiring cooling and heating chambers and gas flow therethrough
US5641022 *Oct 16, 1995Jun 24, 1997King; MichaelMethod for removing paraffin and asphaltene from producing wells
US6581684Apr 24, 2001Jun 24, 2003Shell Oil CompanyIn Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids
US6588503Apr 24, 2001Jul 8, 2003Shell Oil CompanyIn Situ thermal processing of a coal formation to control product composition
US6588504Apr 24, 2001Jul 8, 2003Shell Oil CompanyIn situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
US6591906Apr 24, 2001Jul 15, 2003Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected oxygen content
US6591907Apr 24, 2001Jul 15, 2003Shell Oil CompanyIn situ thermal processing of a coal formation with a selected vitrinite reflectance
US6607033Apr 24, 2001Aug 19, 2003Shell Oil CompanyIn Situ thermal processing of a coal formation to produce a condensate
US6609570Apr 24, 2001Aug 26, 2003Shell Oil CompanyIn situ thermal processing of a coal formation and ammonia production
US6688387Apr 24, 2001Feb 10, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate
US6698515Apr 24, 2001Mar 2, 2004Shell Oil CompanyIn situ thermal processing of a coal formation using a relatively slow heating rate
US6702016Apr 24, 2001Mar 9, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer
US6708758Apr 24, 2001Mar 23, 2004Shell Oil CompanyIn situ thermal processing of a coal formation leaving one or more selected unprocessed areas
US6712135Apr 24, 2001Mar 30, 2004Shell Oil CompanyIn situ thermal processing of a coal formation in reducing environment
US6712136Apr 24, 2001Mar 30, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using a selected production well spacing
US6712137Apr 24, 2001Mar 30, 2004Shell Oil CompanyIn situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material
US6715546Apr 24, 2001Apr 6, 2004Shell Oil CompanyIn situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore
US6715547Apr 24, 2001Apr 6, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation
US6715548Apr 24, 2001Apr 6, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids
US6715549Apr 24, 2001Apr 6, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio
US6719047Apr 24, 2001Apr 13, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment
US6722429Apr 24, 2001Apr 20, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas
US6722431Apr 24, 2001Apr 20, 2004Shell Oil CompanyIn situ thermal processing of hydrocarbons within a relatively permeable formation
US6725920Apr 24, 2001Apr 27, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products
US6725921Apr 24, 2001Apr 27, 2004Shell Oil CompanyIn situ thermal processing of a coal formation by controlling a pressure of the formation
US6725928Apr 24, 2001Apr 27, 2004Shell Oil CompanyIn situ thermal processing of a coal formation using a distributed combustor
US6729395Apr 24, 2001May 4, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells
US6729396Apr 24, 2001May 4, 2004Shell Oil CompanyIn situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range
US6729397Apr 24, 2001May 4, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance
US6729401Apr 24, 2001May 4, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation and ammonia production
US6732795Apr 24, 2001May 11, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to pyrolyze a selected percentage of hydrocarbon material
US6732796Apr 24, 2001May 11, 2004Shell Oil CompanyIn situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio
US6736215Apr 24, 2001May 18, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration
US6739393Apr 24, 2001May 25, 2004Shell Oil CompanyIn situ thermal processing of a coal formation and tuning production
US6739394Apr 24, 2001May 25, 2004Shell Oil CompanyProduction of synthesis gas from a hydrocarbon containing formation
US6742587Apr 24, 2001Jun 1, 2004Shell Oil CompanyIn situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation
US6742588Apr 24, 2001Jun 1, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content
US6742589Apr 24, 2001Jun 1, 2004Shell Oil CompanyIn situ thermal processing of a coal formation using repeating triangular patterns of heat sources
US6742593Apr 24, 2001Jun 1, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation
US6745831Apr 24, 2001Jun 8, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation
US6745832Apr 24, 2001Jun 8, 2004Shell Oil CompanySitu thermal processing of a hydrocarbon containing formation to control product composition
US6745837Apr 24, 2001Jun 8, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using a controlled heating rate
US6749021Apr 24, 2001Jun 15, 2004Shell Oil CompanyIn situ thermal processing of a coal formation using a controlled heating rate
US6752210Apr 24, 2001Jun 22, 2004Shell Oil CompanyIn situ thermal processing of a coal formation using heat sources positioned within open wellbores
US6758268Apr 24, 2001Jul 6, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate
US6761216Apr 24, 2001Jul 13, 2004Shell Oil CompanyIn situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas
US6763886Apr 24, 2001Jul 20, 2004Shell Oil CompanyIn situ thermal processing of a coal formation with carbon dioxide sequestration
US6769483Apr 24, 2001Aug 3, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources
US6769485Apr 24, 2001Aug 3, 2004Shell Oil CompanyIn situ production of synthesis gas from a coal formation through a heat source wellbore
US6789625 *Apr 24, 2001Sep 14, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources
US6805195Apr 24, 2001Oct 19, 2004Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas
US6820688Apr 24, 2001Nov 23, 2004Shell Oil CompanyIn situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio
US6866097Apr 24, 2001Mar 15, 2005Shell Oil CompanyIn situ thermal processing of a coal formation to increase a permeability/porosity of the formation
US6871707Apr 24, 2001Mar 29, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with carbon dioxide sequestration
US6877554Apr 24, 2001Apr 12, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control
US6877555Apr 24, 2002Apr 12, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation while inhibiting coking
US6880633Apr 24, 2002Apr 19, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation to produce a desired product
US6880635Apr 24, 2001Apr 19, 2005Shell Oil CompanyIn situ production of synthesis gas from a coal formation, the synthesis gas having a selected H2 to CO ratio
US6889769Apr 24, 2001May 10, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected moisture content
US6896053Apr 24, 2001May 24, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources
US6902003Apr 24, 2001Jun 7, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content
US6902004Apr 24, 2001Jun 7, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using a movable heating element
US6910536Apr 24, 2001Jun 28, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US6913078Apr 24, 2001Jul 5, 2005Shell Oil CompanyIn Situ thermal processing of hydrocarbons within a relatively impermeable formation
US6915850Apr 24, 2002Jul 12, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation having permeable and impermeable sections
US6918442Apr 24, 2002Jul 19, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation in a reducing environment
US6918443Apr 24, 2002Jul 19, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range
US6923257Apr 24, 2002Aug 2, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation to produce a condensate
US6923258Jun 12, 2003Aug 2, 2005Shell Oil CompanyIn situ thermal processsing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
US6929067Apr 24, 2002Aug 16, 2005Shell Oil CompanyHeat sources with conductive material for in situ thermal processing of an oil shale formation
US6932155Oct 24, 2002Aug 23, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
US6948562Apr 24, 2002Sep 27, 2005Shell Oil CompanyProduction of a blending agent using an in situ thermal process in a relatively permeable formation
US6948563Apr 24, 2001Sep 27, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content
US6951247Apr 24, 2002Oct 4, 2005Shell Oil CompanyIn situ thermal processing of an oil shale formation using horizontal heat sources
US6953087Apr 24, 2001Oct 11, 2005Shell Oil CompanyThermal processing of a hydrocarbon containing formation to increase a permeability of the formation
US6959761Apr 24, 2001Nov 1, 2005Shell Oil CompanyIn situ thermal processing of a coal formation with a selected ratio of heat sources to production wells
US6964300Apr 24, 2002Nov 15, 2005Shell Oil CompanyIn situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US6966372Apr 24, 2001Nov 22, 2005Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids
US6966374Apr 24, 2002Nov 22, 2005Shell Oil CompanyIn situ thermal recovery from a relatively permeable formation using gas to increase mobility
US6969123Oct 24, 2002Nov 29, 2005Shell Oil CompanyUpgrading and mining of coal
US6973967Apr 24, 2001Dec 13, 2005Shell Oil CompanySitu thermal processing of a coal formation using pressure and/or temperature control
US6981548Apr 24, 2002Jan 3, 2006Shell Oil CompanyIn situ thermal recovery from a relatively permeable formation
US6991031Apr 24, 2001Jan 31, 2006Shell Oil CompanyIn situ thermal processing of a coal formation to convert a selected total organic carbon content into hydrocarbon products
US6991032Apr 24, 2002Jan 31, 2006Shell Oil CompanyIn situ thermal processing of an oil shale formation using a pattern of heat sources
US6991033Apr 24, 2002Jan 31, 2006Shell Oil CompanyIn situ thermal processing while controlling pressure in an oil shale formation
US6991036Apr 24, 2002Jan 31, 2006Shell Oil CompanyThermal processing of a relatively permeable formation
US6991045Oct 24, 2002Jan 31, 2006Shell Oil CompanyForming openings in a hydrocarbon containing formation using magnetic tracking
US6994160Apr 24, 2001Feb 7, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range
US6994161Apr 24, 2001Feb 7, 2006Kevin Albert MaherIn situ thermal processing of a coal formation with a selected moisture content
US6994168Apr 24, 2001Feb 7, 2006Scott Lee WellingtonIn situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio
US6994169Apr 24, 2002Feb 7, 2006Shell Oil CompanyIn situ thermal processing of an oil shale formation with a selected property
US6997255Apr 24, 2001Feb 14, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation in a reducing environment
US6997518Apr 24, 2002Feb 14, 2006Shell Oil CompanyIn situ thermal processing and solution mining of an oil shale formation
US7004247Apr 24, 2002Feb 28, 2006Shell Oil CompanyConductor-in-conduit heat sources for in situ thermal processing of an oil shale formation
US7004251Apr 24, 2002Feb 28, 2006Shell Oil CompanyIn situ thermal processing and remediation of an oil shale formation
US7011154Oct 24, 2002Mar 14, 2006Shell Oil CompanyIn situ recovery from a kerogen and liquid hydrocarbon containing formation
US7013972Apr 24, 2002Mar 21, 2006Shell Oil CompanyIn situ thermal processing of an oil shale formation using a natural distributed combustor
US7017661Apr 24, 2001Mar 28, 2006Shell Oil CompanyProduction of synthesis gas from a coal formation
US7032660Apr 24, 2002Apr 25, 2006Shell Oil CompanyIn situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US7036583Sep 24, 2001May 2, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation
US7040397Apr 24, 2002May 9, 2006Shell Oil CompanyThermal processing of an oil shale formation to increase permeability of the formation
US7040398Apr 24, 2002May 9, 2006Shell Oil CompanyIn situ thermal processing of a relatively permeable formation in a reducing environment
US7040399Apr 24, 2002May 9, 2006Shell Oil CompanyIn situ thermal processing of an oil shale formation using a controlled heating rate
US7040400Apr 24, 2002May 9, 2006Shell Oil CompanyIn situ thermal processing of a relatively impermeable formation using an open wellbore
US7051807Apr 24, 2002May 30, 2006Shell Oil CompanyIn situ thermal recovery from a relatively permeable formation with quality control
US7051808Oct 24, 2002May 30, 2006Shell Oil CompanySeismic monitoring of in situ conversion in a hydrocarbon containing formation
US7051811Apr 24, 2002May 30, 2006Shell Oil CompanyIn situ thermal processing through an open wellbore in an oil shale formation
US7055600Apr 24, 2002Jun 6, 2006Shell Oil CompanyIn situ thermal recovery from a relatively permeable formation with controlled production rate
US7063145Oct 24, 2002Jun 20, 2006Shell Oil CompanyMethods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations
US7066254Oct 24, 2002Jun 27, 2006Shell Oil CompanyIn situ thermal processing of a tar sands formation
US7066257Oct 24, 2002Jun 27, 2006Shell Oil CompanyIn situ recovery from lean and rich zones in a hydrocarbon containing formation
US7073578Oct 24, 2003Jul 11, 2006Shell Oil CompanyStaged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation
US7077198Oct 24, 2002Jul 18, 2006Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation using barriers
US7077199Oct 24, 2002Jul 18, 2006Shell Oil CompanyIn situ thermal processing of an oil reservoir formation
US7086465Oct 24, 2002Aug 8, 2006Shell Oil CompanyIn situ production of a blending agent from a hydrocarbon containing formation
US7086468Apr 24, 2001Aug 8, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores
US7090013Oct 24, 2002Aug 15, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US7096941Apr 24, 2001Aug 29, 2006Shell Oil CompanyIn situ thermal processing of a coal formation with heat sources located at an edge of a coal layer
US7096942Apr 24, 2002Aug 29, 2006Shell Oil CompanyIn situ thermal processing of a relatively permeable formation while controlling pressure
US7096953Apr 24, 2001Aug 29, 2006Shell Oil CompanyIn situ thermal processing of a coal formation using a movable heating element
US7100994Oct 24, 2002Sep 5, 2006Shell Oil CompanyProducing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation
US7104319Oct 24, 2002Sep 12, 2006Shell Oil CompanyIn situ thermal processing of a heavy oil diatomite formation
US7114566Oct 24, 2002Oct 3, 2006Shell Oil CompanyIn situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US7121341Oct 24, 2003Oct 17, 2006Shell Oil CompanyConductor-in-conduit temperature limited heaters
US7121342Apr 23, 2004Oct 17, 2006Shell Oil CompanyThermal processes for subsurface formations
US7128153Oct 24, 2002Oct 31, 2006Shell Oil CompanyTreatment of a hydrocarbon containing formation after heating
US7156176Oct 24, 2002Jan 2, 2007Shell Oil CompanyInstallation and use of removable heaters in a hydrocarbon containing formation
US7165615Oct 24, 2002Jan 23, 2007Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US7219734Oct 24, 2003May 22, 2007Shell Oil CompanyInhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation
US7225866Jan 31, 2006Jun 5, 2007Shell Oil CompanyIn situ thermal processing of an oil shale formation using a pattern of heat sources
US7320364Apr 22, 2005Jan 22, 2008Shell Oil CompanyInhibiting reflux in a heated well of an in situ conversion system
US7353872Apr 22, 2005Apr 8, 2008Shell Oil CompanyStart-up of temperature limited heaters using direct current (DC)
US7357180Apr 22, 2005Apr 15, 2008Shell Oil CompanyInhibiting effects of sloughing in wellbores
US7360588Oct 17, 2006Apr 22, 2008Shell Oil CompanyThermal processes for subsurface formations
US7370704Apr 22, 2005May 13, 2008Shell Oil CompanyTriaxial temperature limited heater
US7383877Apr 22, 2005Jun 10, 2008Shell Oil CompanyTemperature limited heaters with thermally conductive fluid used to heat subsurface formations
US7424915Apr 22, 2005Sep 16, 2008Shell Oil CompanyVacuum pumping of conductor-in-conduit heaters
US7431076Apr 22, 2005Oct 7, 2008Shell Oil CompanyTemperature limited heaters using modulated DC power
US7435037Apr 21, 2006Oct 14, 2008Shell Oil CompanyLow temperature barriers with heat interceptor wells for in situ processes
US7461691Jan 23, 2007Dec 9, 2008Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US7481274Apr 22, 2005Jan 27, 2009Shell Oil CompanyTemperature limited heaters with relatively constant current
US7490665Apr 22, 2005Feb 17, 2009Shell Oil CompanyVariable frequency temperature limited heaters
US7500528Apr 21, 2006Mar 10, 2009Shell Oil CompanyLow temperature barrier wellbores formed using water flushing
US7510000Apr 22, 2005Mar 31, 2009Shell Oil CompanyReducing viscosity of oil for production from a hydrocarbon containing formation
US7527094Apr 21, 2006May 5, 2009Shell Oil CompanyDouble barrier system for an in situ conversion process
US7533719Apr 20, 2007May 19, 2009Shell Oil CompanyWellhead with non-ferromagnetic materials
US7540324Oct 19, 2007Jun 2, 2009Shell Oil CompanyHeating hydrocarbon containing formations in a checkerboard pattern staged process
US7546873Apr 21, 2006Jun 16, 2009Shell Oil CompanyLow temperature barriers for use with in situ processes
US7549470Oct 20, 2006Jun 23, 2009Shell Oil CompanySolution mining and heating by oxidation for treating hydrocarbon containing formations
US7556095Oct 20, 2006Jul 7, 2009Shell Oil CompanySolution mining dawsonite from hydrocarbon containing formations with a chelating agent
US7556096Oct 20, 2006Jul 7, 2009Shell Oil CompanyVarying heating in dawsonite zones in hydrocarbon containing formations
US7559367Oct 20, 2006Jul 14, 2009Shell Oil CompanyTemperature limited heater with a conduit substantially electrically isolated from the formation
US7559368Oct 20, 2006Jul 14, 2009Shell Oil CompanySolution mining systems and methods for treating hydrocarbon containing formations
US7562706Oct 20, 2006Jul 21, 2009Shell Oil CompanySystems and methods for producing hydrocarbons from tar sands formations
US7562707Oct 19, 2007Jul 21, 2009Shell Oil CompanyHeating hydrocarbon containing formations in a line drive staged process
US7575052Apr 21, 2006Aug 18, 2009Shell Oil CompanyIn situ conversion process utilizing a closed loop heating system
US7575053Apr 21, 2006Aug 18, 2009Shell Oil CompanyLow temperature monitoring system for subsurface barriers
US7581589Oct 20, 2006Sep 1, 2009Shell Oil CompanyMethods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US7584789Oct 20, 2006Sep 8, 2009Shell Oil CompanyMethods of cracking a crude product to produce additional crude products
US7591310Oct 20, 2006Sep 22, 2009Shell Oil CompanyMethods of hydrotreating a liquid stream to remove clogging compounds
US7597147Apr 20, 2007Oct 6, 2009Shell Oil CompanyTemperature limited heaters using phase transformation of ferromagnetic material
US7604052Apr 20, 2007Oct 20, 2009Shell Oil CompanyCompositions produced using an in situ heat treatment process
US7610962Apr 20, 2007Nov 3, 2009Shell Oil CompanySour gas injection for use with in situ heat treatment
US7631689Apr 20, 2007Dec 15, 2009Shell Oil CompanySulfur barrier for use with in situ processes for treating formations
US7631690Oct 19, 2007Dec 15, 2009Shell Oil CompanyHeating hydrocarbon containing formations in a spiral startup staged sequence
US7635023Apr 20, 2007Dec 22, 2009Shell Oil CompanyTime sequenced heating of multiple layers in a hydrocarbon containing formation
US7635024Oct 19, 2007Dec 22, 2009Shell Oil CompanyHeating tar sands formations to visbreaking temperatures
US7635025Oct 20, 2006Dec 22, 2009Shell Oil CompanyCogeneration systems and processes for treating hydrocarbon containing formations
US7640980Apr 7, 2008Jan 5, 2010Shell Oil CompanyThermal processes for subsurface formations
US7644765Oct 19, 2007Jan 12, 2010Shell Oil CompanyHeating tar sands formations while controlling pressure
US7673681Oct 19, 2007Mar 9, 2010Shell Oil CompanyTreating tar sands formations with karsted zones
US7673786Apr 20, 2007Mar 9, 2010Shell Oil CompanyWelding shield for coupling heaters
US7677310Oct 19, 2007Mar 16, 2010Shell Oil CompanyCreating and maintaining a gas cap in tar sands formations
US7677314Oct 19, 2007Mar 16, 2010Shell Oil CompanyMethod of condensing vaporized water in situ to treat tar sands formations
US7681647Oct 19, 2007Mar 23, 2010Shell Oil CompanyMethod of producing drive fluid in situ in tar sands formations
US7683296Apr 20, 2007Mar 23, 2010Shell Oil CompanyAdjusting alloy compositions for selected properties in temperature limited heaters
US7703513Oct 19, 2007Apr 27, 2010Shell Oil CompanyWax barrier for use with in situ processes for treating formations
US7717171Oct 19, 2007May 18, 2010Shell Oil CompanyMoving hydrocarbons through portions of tar sands formations with a fluid
US7730945Oct 19, 2007Jun 8, 2010Shell Oil CompanyUsing geothermal energy to heat a portion of a formation for an in situ heat treatment process
US7730946Oct 19, 2007Jun 8, 2010Shell Oil CompanyTreating tar sands formations with dolomite
US7730947Oct 19, 2007Jun 8, 2010Shell Oil CompanyCreating fluid injectivity in tar sands formations
US7735935Jun 1, 2007Jun 15, 2010Shell Oil CompanyIn situ thermal processing of an oil shale formation containing carbonate minerals
US7785427Apr 20, 2007Aug 31, 2010Shell Oil CompanyHigh strength alloys
US7793722Apr 20, 2007Sep 14, 2010Shell Oil CompanyNon-ferromagnetic overburden casing
US7798220Apr 18, 2008Sep 21, 2010Shell Oil CompanyIn situ heat treatment of a tar sands formation after drive process treatment
US7798221Sep 21, 2010Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US7831133Apr 21, 2006Nov 9, 2010Shell Oil CompanyInsulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration
US7831134Apr 21, 2006Nov 9, 2010Shell Oil CompanyGrouped exposed metal heaters
US7832484Apr 18, 2008Nov 16, 2010Shell Oil CompanyMolten salt as a heat transfer fluid for heating a subsurface formation
US7841401Oct 19, 2007Nov 30, 2010Shell Oil CompanyGas injection to inhibit migration during an in situ heat treatment process
US7841408Apr 18, 2008Nov 30, 2010Shell Oil CompanyIn situ heat treatment from multiple layers of a tar sands formation
US7841425Apr 18, 2008Nov 30, 2010Shell Oil CompanyDrilling subsurface wellbores with cutting structures
US7845411Oct 19, 2007Dec 7, 2010Shell Oil CompanyIn situ heat treatment process utilizing a closed loop heating system
US7849922Apr 18, 2008Dec 14, 2010Shell Oil CompanyIn situ recovery from residually heated sections in a hydrocarbon containing formation
US7860377Apr 21, 2006Dec 28, 2010Shell Oil CompanySubsurface connection methods for subsurface heaters
US7866385Apr 20, 2007Jan 11, 2011Shell Oil CompanyPower systems utilizing the heat of produced formation fluid
US7866386Oct 13, 2008Jan 11, 2011Shell Oil CompanyIn situ oxidation of subsurface formations
US7866388Oct 13, 2008Jan 11, 2011Shell Oil CompanyHigh temperature methods for forming oxidizer fuel
US7912358Apr 20, 2007Mar 22, 2011Shell Oil CompanyAlternate energy source usage for in situ heat treatment processes
US7931086Apr 18, 2008Apr 26, 2011Shell Oil CompanyHeating systems for heating subsurface formations
US7942197Apr 21, 2006May 17, 2011Shell Oil CompanyMethods and systems for producing fluid from an in situ conversion process
US7942203Jan 4, 2010May 17, 2011Shell Oil CompanyThermal processes for subsurface formations
US7950453Apr 18, 2008May 31, 2011Shell Oil CompanyDownhole burner systems and methods for heating subsurface formations
US7986869Apr 21, 2006Jul 26, 2011Shell Oil CompanyVarying properties along lengths of temperature limited heaters
US8011451Oct 13, 2008Sep 6, 2011Shell Oil CompanyRanging methods for developing wellbores in subsurface formations
US8027571Apr 21, 2006Sep 27, 2011Shell Oil CompanyIn situ conversion process systems utilizing wellbores in at least two regions of a formation
US8042610Apr 18, 2008Oct 25, 2011Shell Oil CompanyParallel heater system for subsurface formations
US8070840Apr 21, 2006Dec 6, 2011Shell Oil CompanyTreatment of gas from an in situ conversion process
US8083813Apr 20, 2007Dec 27, 2011Shell Oil CompanyMethods of producing transportation fuel
US8113272Oct 13, 2008Feb 14, 2012Shell Oil CompanyThree-phase heaters with common overburden sections for heating subsurface formations
US8146661Oct 13, 2008Apr 3, 2012Shell Oil CompanyCryogenic treatment of gas
US8146669Oct 13, 2008Apr 3, 2012Shell Oil CompanyMulti-step heater deployment in a subsurface formation
US8151880Dec 9, 2010Apr 10, 2012Shell Oil CompanyMethods of making transportation fuel
US8151907Apr 10, 2009Apr 10, 2012Shell Oil CompanyDual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US8162059Oct 13, 2008Apr 24, 2012Shell Oil CompanyInduction heaters used to heat subsurface formations
US8162405Apr 10, 2009Apr 24, 2012Shell Oil CompanyUsing tunnels for treating subsurface hydrocarbon containing formations
US8172335Apr 10, 2009May 8, 2012Shell Oil CompanyElectrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations
US8177305Apr 10, 2009May 15, 2012Shell Oil CompanyHeater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8191630Apr 28, 2010Jun 5, 2012Shell Oil CompanyCreating fluid injectivity in tar sands formations
US8192682Apr 26, 2010Jun 5, 2012Shell Oil CompanyHigh strength alloys
US8196658Oct 13, 2008Jun 12, 2012Shell Oil CompanyIrregular spacing of heat sources for treating hydrocarbon containing formations
US8220539Oct 9, 2009Jul 17, 2012Shell Oil CompanyControlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation
US8224163Oct 24, 2003Jul 17, 2012Shell Oil CompanyVariable frequency temperature limited heaters
US8224164Oct 24, 2003Jul 17, 2012Shell Oil CompanyInsulated conductor temperature limited heaters
US8224165Apr 21, 2006Jul 17, 2012Shell Oil CompanyTemperature limited heater utilizing non-ferromagnetic conductor
US8225866Jul 21, 2010Jul 24, 2012Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US8230927May 16, 2011Jul 31, 2012Shell Oil CompanyMethods and systems for producing fluid from an in situ conversion process
US8233782Sep 29, 2010Jul 31, 2012Shell Oil CompanyGrouped exposed metal heaters
US8238730Oct 24, 2003Aug 7, 2012Shell Oil CompanyHigh voltage temperature limited heaters
US8240774Oct 13, 2008Aug 14, 2012Shell Oil CompanySolution mining and in situ treatment of nahcolite beds
US8256512Oct 9, 2009Sep 4, 2012Shell Oil CompanyMovable heaters for treating subsurface hydrocarbon containing formations
US8261832Oct 9, 2009Sep 11, 2012Shell Oil CompanyHeating subsurface formations with fluids
US8267170Oct 9, 2009Sep 18, 2012Shell Oil CompanyOffset barrier wells in subsurface formations
US8267185Oct 9, 2009Sep 18, 2012Shell Oil CompanyCirculated heated transfer fluid systems used to treat a subsurface formation
US8272455Oct 13, 2008Sep 25, 2012Shell Oil CompanyMethods for forming wellbores in heated formations
US8276661Oct 13, 2008Oct 2, 2012Shell Oil CompanyHeating subsurface formations by oxidizing fuel on a fuel carrier
US8281861Oct 9, 2009Oct 9, 2012Shell Oil CompanyCirculated heated transfer fluid heating of subsurface hydrocarbon formations
US8327681Apr 18, 2008Dec 11, 2012Shell Oil CompanyWellbore manufacturing processes for in situ heat treatment processes
US8327932Apr 9, 2010Dec 11, 2012Shell Oil CompanyRecovering energy from a subsurface formation
US8353347Oct 9, 2009Jan 15, 2013Shell Oil CompanyDeployment of insulated conductors for treating subsurface formations
US8355623Apr 22, 2005Jan 15, 2013Shell Oil CompanyTemperature limited heaters with high power factors
US8381815Apr 18, 2008Feb 26, 2013Shell Oil CompanyProduction from multiple zones of a tar sands formation
US8434555Apr 9, 2010May 7, 2013Shell Oil CompanyIrregular pattern treatment of a subsurface formation
US8448707May 28, 2013Shell Oil CompanyNon-conducting heater casings
US8459359Apr 18, 2008Jun 11, 2013Shell Oil CompanyTreating nahcolite containing formations and saline zones
US8485252Jul 11, 2012Jul 16, 2013Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US8536497Oct 13, 2008Sep 17, 2013Shell Oil CompanyMethods for forming long subsurface heaters
US8555971May 31, 2012Oct 15, 2013Shell Oil CompanyTreating tar sands formations with dolomite
US8562078Nov 25, 2009Oct 22, 2013Shell Oil CompanyHydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US8579031May 17, 2011Nov 12, 2013Shell Oil CompanyThermal processes for subsurface formations
US8606091Oct 20, 2006Dec 10, 2013Shell Oil CompanySubsurface heaters with low sulfidation rates
US8627887Dec 8, 2008Jan 14, 2014Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US8631866Apr 8, 2011Jan 21, 2014Shell Oil CompanyLeak detection in circulated fluid systems for heating subsurface formations
US8636323Nov 25, 2009Jan 28, 2014Shell Oil CompanyMines and tunnels for use in treating subsurface hydrocarbon containing formations
US8662175Apr 18, 2008Mar 4, 2014Shell Oil CompanyVarying properties of in situ heat treatment of a tar sands formation based on assessed viscosities
US8701768Apr 8, 2011Apr 22, 2014Shell Oil CompanyMethods for treating hydrocarbon formations
US8701769Apr 8, 2011Apr 22, 2014Shell Oil CompanyMethods for treating hydrocarbon formations based on geology
US8739874Apr 8, 2011Jun 3, 2014Shell Oil CompanyMethods for heating with slots in hydrocarbon formations
US8752904Apr 10, 2009Jun 17, 2014Shell Oil CompanyHeated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations
US8789586Jul 12, 2013Jul 29, 2014Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US8791396Apr 18, 2008Jul 29, 2014Shell Oil CompanyFloating insulated conductors for heating subsurface formations
US8820406Apr 8, 2011Sep 2, 2014Shell Oil CompanyElectrodes for electrical current flow heating of subsurface formations with conductive material in wellbore
US8833453Apr 8, 2011Sep 16, 2014Shell Oil CompanyElectrodes for electrical current flow heating of subsurface formations with tapered copper thickness
US8851170Apr 9, 2010Oct 7, 2014Shell Oil CompanyHeater assisted fluid treatment of a subsurface formation
US8857506May 24, 2013Oct 14, 2014Shell Oil CompanyAlternate energy source usage methods for in situ heat treatment processes
US8875788Apr 8, 2011Nov 4, 2014Shell Oil CompanyLow temperature inductive heating of subsurface formations
US8881806Oct 9, 2009Nov 11, 2014Shell Oil CompanySystems and methods for treating a subsurface formation with electrical conductors
US9016370Apr 6, 2012Apr 28, 2015Shell Oil CompanyPartial solution mining of hydrocarbon containing layers prior to in situ heat treatment
US9022109Jan 21, 2014May 5, 2015Shell Oil CompanyLeak detection in circulated fluid systems for heating subsurface formations
US9022118Oct 9, 2009May 5, 2015Shell Oil CompanyDouble insulated heaters for treating subsurface formations
US9033042Apr 8, 2011May 19, 2015Shell Oil CompanyForming bitumen barriers in subsurface hydrocarbon formations
US9051829Oct 9, 2009Jun 9, 2015Shell Oil CompanyPerforated electrical conductors for treating subsurface formations
US9127523Apr 8, 2011Sep 8, 2015Shell Oil CompanyBarrier methods for use in subsurface hydrocarbon formations
US9127538Apr 8, 2011Sep 8, 2015Shell Oil CompanyMethodologies for treatment of hydrocarbon formations using staged pyrolyzation
US9129728Oct 9, 2009Sep 8, 2015Shell Oil CompanySystems and methods of forming subsurface wellbores
US9181780Apr 18, 2008Nov 10, 2015Shell Oil CompanyControlling and assessing pressure conditions during treatment of tar sands formations
US20020029881 *Apr 24, 2001Mar 14, 2002De Rouffignac Eric PierreIn situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources
US20020033256 *Apr 24, 2001Mar 21, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio
US20020033280 *Apr 24, 2001Mar 21, 2002Schoeling Lanny GeneIn situ thermal processing of a coal formation with carbon dioxide sequestration
US20020034380 *Apr 24, 2001Mar 21, 2002Maher Kevin AlbertIn situ thermal processing of a coal formation with a selected moisture content
US20020036083 *Apr 24, 2001Mar 28, 2002De Rouffignac Eric PierreIn situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer
US20020038705 *Apr 24, 2001Apr 4, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
US20020038706 *Apr 24, 2001Apr 4, 2002Etuan ZhangIn situ thermal processing of a coal formation with a selected vitrinite reflectance
US20020038710 *Apr 24, 2001Apr 4, 2002Maher Kevin AlbertIn situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content
US20020040173 *Apr 24, 2001Apr 4, 2002Rouffignac Eric Pierre DeIn situ thermal processing of a hydrocarbon containing formation to pyrolyze a selected percentage of hydrocarbon material
US20020043365 *Apr 24, 2001Apr 18, 2002Berchenko Ilya EmilIn situ thermal processing of a coal formation with a selected ratio of heat sources to production wells
US20020043367 *Apr 24, 2001Apr 18, 2002Rouffignac Eric Pierre DeIn situ thermal processing of a hydrocarbon containing formation to increase a permeability of the formation
US20020043405 *Apr 24, 2001Apr 18, 2002Vinegar Harold J.In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range
US20020046832 *Apr 24, 2001Apr 25, 2002Etuan ZhangIn situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products
US20020046837 *Apr 24, 2001Apr 25, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation with a selected oxygen content
US20020050356 *Apr 24, 2001May 2, 2002Vinegar Harold J.In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio
US20020050357 *Apr 24, 2001May 2, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content
US20020053436 *Apr 24, 2001May 9, 2002Vinegar Harold J.In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material
US20020057905 *Apr 24, 2001May 16, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids
US20020062051 *Apr 24, 2001May 23, 2002Wellington Scott L.In situ thermal processing of a hydrocarbon containing formation with a selected moisture content
US20020062959 *Apr 24, 2001May 30, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio
US20020084074 *Sep 24, 2001Jul 4, 2002De Rouffignac Eric PierreIn situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation
US20020096320 *Apr 24, 2001Jul 25, 2002Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation using a controlled heating rate
US20020104654 *Apr 24, 2001Aug 8, 2002Shell Oil CompanyIn situ thermal processing of a coal formation to convert a selected total organic carbon content into hydrocarbon products
US20030006039 *Apr 24, 2001Jan 9, 2003Etuan ZhangIn situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance
US20030019626 *Apr 24, 2001Jan 30, 2003Vinegar Harold J.In situ thermal processing of a coal formation with a selected hydrogen content and/or selected H/C ratio
US20030051872 *Apr 24, 2001Mar 20, 2003De Rouffignac Eric PierreIn situ thermal processing of a coal formation with heat sources located at an edge of a coal layer
US20030075318 *Apr 24, 2001Apr 24, 2003Keedy Charles RobertIn situ thermal processing of a coal formation using substantially parallel formed wellbores
US20030079877 *Apr 24, 2002May 1, 2003Wellington Scott LeeIn situ thermal processing of a relatively impermeable formation in a reducing environment
US20030080604 *Apr 24, 2002May 1, 2003Vinegar Harold J.In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US20030098149 *Apr 24, 2002May 29, 2003Wellington Scott LeeIn situ thermal recovery from a relatively permeable formation using gas to increase mobility
US20030098605 *Apr 24, 2002May 29, 2003Vinegar Harold J.In situ thermal recovery from a relatively permeable formation
US20030100451 *Apr 24, 2002May 29, 2003Messier Margaret AnnIn situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US20030102124 *Apr 24, 2002Jun 5, 2003Vinegar Harold J.In situ thermal processing of a blending agent from a relatively permeable formation
US20030102125 *Apr 24, 2002Jun 5, 2003Wellington Scott LeeIn situ thermal processing of a relatively permeable formation in a reducing environment
US20030102126 *Apr 24, 2002Jun 5, 2003Sumnu-Dindoruk Meliha DenizIn situ thermal recovery from a relatively permeable formation with controlled production rate
US20030102130 *Apr 24, 2002Jun 5, 2003Vinegar Harold J.In situ thermal recovery from a relatively permeable formation with quality control
US20030111223 *Apr 24, 2002Jun 19, 2003Rouffignac Eric Pierre DeIn situ thermal processing of an oil shale formation using horizontal heat sources
US20030116315 *Apr 24, 2002Jun 26, 2003Wellington Scott LeeIn situ thermal processing of a relatively permeable formation
US20030130136 *Apr 24, 2002Jul 10, 2003Rouffignac Eric Pierre DeIn situ thermal processing of a relatively impermeable formation using an open wellbore
US20030131993 *Apr 24, 2002Jul 17, 2003Etuan ZhangIn situ thermal processing of an oil shale formation with a selected property
US20030131994 *Apr 24, 2002Jul 17, 2003Vinegar Harold J.In situ thermal processing and solution mining of an oil shale formation
US20030131995 *Apr 24, 2002Jul 17, 2003De Rouffignac Eric PierreIn situ thermal processing of a relatively impermeable formation to increase permeability of the formation
US20030131996 *Apr 24, 2002Jul 17, 2003Vinegar Harold J.In situ thermal processing of an oil shale formation having permeable and impermeable sections
US20030136558 *Apr 24, 2002Jul 24, 2003Wellington Scott LeeIn situ thermal processing of an oil shale formation to produce a desired product
US20030136559 *Apr 24, 2002Jul 24, 2003Wellington Scott LeeIn situ thermal processing while controlling pressure in an oil shale formation
US20030141066 *Apr 24, 2002Jul 31, 2003Karanikas John MichaelIn situ thermal processing of an oil shale formation while inhibiting coking
US20030141067 *Apr 24, 2002Jul 31, 2003Rouffignac Eric Pierre DeIn situ thermal processing of an oil shale formation to increase permeability of the formation
US20030141068 *Apr 24, 2002Jul 31, 2003Pierre De Rouffignac EricIn situ thermal processing through an open wellbore in an oil shale formation
US20030142964 *Apr 24, 2002Jul 31, 2003Wellington Scott LeeIn situ thermal processing of an oil shale formation using a controlled heating rate
US20030146002 *Apr 24, 2002Aug 7, 2003Vinegar Harold J.Removable heat sources for in situ thermal processing of an oil shale formation
US20030148894 *Apr 24, 2002Aug 7, 2003Vinegar Harold J.In situ thermal processing of an oil shale formation using a natural distributed combustor
US20030155111 *Oct 24, 2002Aug 21, 2003Shell Oil CoIn situ thermal processing of a tar sands formation
US20030164239 *Apr 24, 2002Sep 4, 2003Wellington Scott LeeIn situ thermal processing of an oil shale formation in a reducing environment
US20030173078 *Apr 24, 2002Sep 18, 2003Wellington Scott LeeIn situ thermal processing of an oil shale formation to produce a condensate
US20030173081 *Oct 24, 2002Sep 18, 2003Vinegar Harold J.In situ thermal processing of an oil reservoir formation
US20030173085 *Oct 24, 2002Sep 18, 2003Vinegar Harold J.Upgrading and mining of coal
US20030196801 *Oct 24, 2002Oct 23, 2003Vinegar Harold J.In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
US20030196810 *Oct 24, 2002Oct 23, 2003Vinegar Harold J.Treatment of a hydrocarbon containing formation after heating
US20030201098 *Oct 24, 2002Oct 30, 2003Karanikas John MichaelIn situ recovery from a hydrocarbon containing formation using one or more simulations
US20030205378 *Oct 24, 2002Nov 6, 2003Wellington Scott LeeIn situ recovery from lean and rich zones in a hydrocarbon containing formation
US20030209348 *Apr 24, 2002Nov 13, 2003Ward John MichaelIn situ thermal processing and remediation of an oil shale formation
US20040015023 *Apr 24, 2001Jan 22, 2004Wellington Scott LeeIn situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate
US20040020642 *Oct 24, 2002Feb 5, 2004Vinegar Harold J.In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US20040040715 *Oct 24, 2002Mar 4, 2004Wellington Scott LeeIn situ production of a blending agent from a hydrocarbon containing formation
US20040108111 *Apr 24, 2001Jun 10, 2004Vinegar Harold J.In situ thermal processing of a coal formation to increase a permeability/porosity of the formation
US20040211554 *Apr 24, 2002Oct 28, 2004Vinegar Harold J.Heat sources with conductive material for in situ thermal processing of an oil shale formation
US20040211557 *Apr 24, 2002Oct 28, 2004Cole Anthony ThomasConductor-in-conduit heat sources for in situ thermal processing of an oil shale formation
US20050092483 *Oct 24, 2002May 5, 2005Vinegar Harold J.In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US20050269077 *Apr 22, 2005Dec 8, 2005Sandberg Chester LStart-up of temperature limited heaters using direct current (DC)
US20050269088 *Apr 22, 2005Dec 8, 2005Vinegar Harold JInhibiting effects of sloughing in wellbores
US20050269089 *Apr 22, 2005Dec 8, 2005Sandberg Chester LTemperature limited heaters using modulated DC power
US20050269090 *Apr 22, 2005Dec 8, 2005Vinegar Harold JTemperature limited heaters with thermally conductive fluid used to heat subsurface formations
US20050269091 *Apr 22, 2005Dec 8, 2005Guillermo Pastor-SanzReducing viscosity of oil for production from a hydrocarbon containing formation
US20050269092 *Apr 22, 2005Dec 8, 2005Vinegar Harold JVacuum pumping of conductor-in-conduit heaters
US20050269093 *Apr 22, 2005Dec 8, 2005Sandberg Chester LVariable frequency temperature limited heaters
US20050269094 *Apr 22, 2005Dec 8, 2005Harris Christopher KTriaxial temperature limited heater
US20050269095 *Apr 22, 2005Dec 8, 2005Fairbanks Michael DInhibiting reflux in a heated well of an in situ conversion system
US20050269313 *Apr 22, 2005Dec 8, 2005Vinegar Harold JTemperature limited heaters with high power factors
US20060005968 *Apr 22, 2005Jan 12, 2006Vinegar Harold JTemperature limited heaters with relatively constant current
US20060289536 *Apr 22, 2005Dec 28, 2006Vinegar Harold JSubsurface electrical heaters using nitride insulation
US20070045265 *Apr 21, 2006Mar 1, 2007Mckinzie Billy J IiLow temperature barriers with heat interceptor wells for in situ processes
US20070045266 *Apr 21, 2006Mar 1, 2007Sandberg Chester LIn situ conversion process utilizing a closed loop heating system
US20070045267 *Apr 21, 2006Mar 1, 2007Vinegar Harold JSubsurface connection methods for subsurface heaters
US20070045268 *Apr 21, 2006Mar 1, 2007Vinegar Harold JVarying properties along lengths of temperature limited heaters
US20070095536 *Oct 20, 2006May 3, 2007Vinegar Harold JCogeneration systems and processes for treating hydrocarbon containing formations
US20070108200 *Apr 21, 2006May 17, 2007Mckinzie Billy J IiLow temperature barrier wellbores formed using water flushing
US20070108201 *Apr 21, 2006May 17, 2007Vinegar Harold JInsulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration
US20070119098 *Apr 21, 2006May 31, 2007Zaida DiazTreatment of gas from an in situ conversion process
US20070125533 *Oct 20, 2006Jun 7, 2007Minderhoud Johannes KMethods of hydrotreating a liquid stream to remove clogging compounds
US20070127897 *Oct 20, 2006Jun 7, 2007John Randy CSubsurface heaters with low sulfidation rates
US20070131415 *Oct 20, 2006Jun 14, 2007Vinegar Harold JSolution mining and heating by oxidation for treating hydrocarbon containing formations
US20070131419 *Oct 20, 2006Jun 14, 2007Maria Roes Augustinus WMethods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20070131420 *Oct 20, 2006Jun 14, 2007Weijian MoMethods of cracking a crude product to produce additional crude products
US20070131427 *Oct 20, 2006Jun 14, 2007Ruijian LiSystems and methods for producing hydrocarbons from tar sands formations
US20070131428 *Oct 20, 2006Jun 14, 2007Willem Cornelis Den Boestert JMethods of filtering a liquid stream produced from an in situ heat treatment process
US20070133959 *Apr 21, 2006Jun 14, 2007Vinegar Harold JGrouped exposed metal heaters
US20070133960 *Apr 21, 2006Jun 14, 2007Vinegar Harold JIn situ conversion process systems utilizing wellbores in at least two regions of a formation
US20070133961 *Apr 21, 2006Jun 14, 2007Fairbanks Michael DMethods and systems for producing fluid from an in situ conversion process
US20070137856 *Apr 21, 2006Jun 21, 2007Mckinzie Billy JDouble barrier system for an in situ conversion process
US20070137857 *Apr 21, 2006Jun 21, 2007Vinegar Harold JLow temperature monitoring system for subsurface barriers
US20070144732 *Apr 21, 2006Jun 28, 2007Kim Dong SLow temperature barriers for use with in situ processes
US20070209799 *Jan 23, 2007Sep 13, 2007Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation
US20070221377 *Oct 20, 2006Sep 27, 2007Vinegar Harold JSolution mining systems and methods for treating hydrocarbon containing formations
US20080035346 *Apr 20, 2007Feb 14, 2008Vijay NairMethods of producing transportation fuel
US20080035347 *Apr 20, 2007Feb 14, 2008Brady Michael PAdjusting alloy compositions for selected properties in temperature limited heaters
US20080035348 *Apr 20, 2007Feb 14, 2008Vitek John MTemperature limited heaters using phase transformation of ferromagnetic material
US20080035705 *Apr 20, 2007Feb 14, 2008Menotti James LWelding shield for coupling heaters
US20080038144 *Apr 20, 2007Feb 14, 2008Maziasz Phillip JHigh strength alloys
US20080107577 *Oct 20, 2006May 8, 2008Vinegar Harold JVarying heating in dawsonite zones in hydrocarbon containing formations
US20080128134 *Oct 19, 2007Jun 5, 2008Ramesh Raju MudunuriProducing drive fluid in situ in tar sands formations
US20080135244 *Oct 19, 2007Jun 12, 2008David Scott MillerHeating hydrocarbon containing formations in a line drive staged process
US20080135253 *Oct 19, 2007Jun 12, 2008Vinegar Harold JTreating tar sands formations with karsted zones
US20080135254 *Oct 19, 2007Jun 12, 2008Vinegar Harold JIn situ heat treatment process utilizing a closed loop heating system
US20080142216 *Oct 19, 2007Jun 19, 2008Vinegar Harold JTreating tar sands formations with dolomite
US20080142217 *Oct 19, 2007Jun 19, 2008Roelof PietersonUsing geothermal energy to heat a portion of a formation for an in situ heat treatment process
US20080173442 *Apr 20, 2007Jul 24, 2008Vinegar Harold JSulfur barrier for use with in situ processes for treating formations
US20080173444 *Apr 20, 2007Jul 24, 2008Francis Marion StoneAlternate energy source usage for in situ heat treatment processes
US20080173449 *Apr 20, 2007Jul 24, 2008Thomas David FowlerSour gas injection for use with in situ heat treatment
US20080173450 *Apr 20, 2007Jul 24, 2008Bernard GoldbergTime sequenced heating of multiple layers in a hydrocarbon containing formation
US20080174115 *Apr 20, 2007Jul 24, 2008Gene Richard LambirthPower systems utilizing the heat of produced formation fluid
US20080185147 *Oct 19, 2007Aug 7, 2008Vinegar Harold JWax barrier for use with in situ processes for treating formations
US20080217003 *Oct 19, 2007Sep 11, 2008Myron Ira KuhlmanGas injection to inhibit migration during an in situ heat treatment process
US20080217004 *Oct 19, 2007Sep 11, 2008De Rouffignac Eric PierreHeating hydrocarbon containing formations in a checkerboard pattern staged process
US20080217015 *Oct 19, 2007Sep 11, 2008Vinegar Harold JHeating hydrocarbon containing formations in a spiral startup staged sequence
US20080217321 *Apr 21, 2006Sep 11, 2008Vinegar Harold JTemperature limited heater utilizing non-ferromagnetic conductor
US20080277113 *Oct 19, 2007Nov 13, 2008George Leo StegemeierHeating tar sands formations while controlling pressure
US20090014180 *Oct 19, 2007Jan 15, 2009George Leo StegemeierMoving hydrocarbons through portions of tar sands formations with a fluid
US20090014181 *Oct 19, 2007Jan 15, 2009Vinegar Harold JCreating and maintaining a gas cap in tar sands formations
US20090071652 *Apr 18, 2008Mar 19, 2009Vinegar Harold JIn situ heat treatment from multiple layers of a tar sands formation
US20090078461 *Apr 18, 2008Mar 26, 2009Arthur James MansureDrilling subsurface wellbores with cutting structures
US20090084547 *Apr 18, 2008Apr 2, 2009Walter Farman FarmayanDownhole burner systems and methods for heating subsurface formations
US20090090509 *Apr 18, 2008Apr 9, 2009Vinegar Harold JIn situ recovery from residually heated sections in a hydrocarbon containing formation
US20090095476 *Apr 18, 2008Apr 16, 2009Scott Vinh NguyenMolten salt as a heat transfer fluid for heating a subsurface formation
US20090095477 *Apr 18, 2008Apr 16, 2009Scott Vinh NguyenHeating systems for heating subsurface formations
US20090095478 *Apr 18, 2008Apr 16, 2009John Michael KaranikasVarying properties of in situ heat treatment of a tar sands formation based on assessed viscosities
US20090095479 *Apr 18, 2008Apr 16, 2009John Michael KaranikasProduction from multiple zones of a tar sands formation
US20090095480 *Apr 18, 2008Apr 16, 2009Vinegar Harold JIn situ heat treatment of a tar sands formation after drive process treatment
US20090101346 *May 31, 2007Apr 23, 2009Shell Oil Company, Inc.In situ recovery from a hydrocarbon containing formation
US20090120646 *Apr 18, 2008May 14, 2009Dong Sub KimElectrically isolating insulated conductor heater
US20090126929 *Apr 18, 2008May 21, 2009Vinegar Harold JTreating nahcolite containing formations and saline zones
US20090189617 *Jul 30, 2009David BurnsContinuous subsurface heater temperature measurement
US20090194269 *Oct 13, 2008Aug 6, 2009Vinegar Harold JThree-phase heaters with common overburden sections for heating subsurface formations
US20090194282 *Oct 13, 2008Aug 6, 2009Gary Lee BeerIn situ oxidation of subsurface formations
US20090194329 *Oct 13, 2008Aug 6, 2009Rosalvina Ramona GuimeransMethods for forming wellbores in heated formations
US20090194333 *Oct 13, 2008Aug 6, 2009Macdonald DuncanRanging methods for developing wellbores in subsurface formations
US20090194524 *Oct 13, 2008Aug 6, 2009Dong Sub KimMethods for forming long subsurface heaters
US20090200025 *Oct 13, 2008Aug 13, 2009Jose Luis BravoHigh temperature methods for forming oxidizer fuel
US20090200031 *Oct 13, 2008Aug 13, 2009David Scott MillerIrregular spacing of heat sources for treating hydrocarbon containing formations
US20090200854 *Oct 13, 2008Aug 13, 2009Vinegar Harold JSolution mining and in situ treatment of nahcolite beds
US20090260823 *Oct 22, 2009Robert George Prince-WrightMines and tunnels for use in treating subsurface hydrocarbon containing formations
US20090260824 *Oct 22, 2009David Booth BurnsHydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US20090272533 *Apr 10, 2009Nov 5, 2009David Booth BurnsHeated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations
US20090272535 *Nov 5, 2009David Booth BurnsUsing tunnels for treating subsurface hydrocarbon containing formations
US20090272578 *Nov 5, 2009Macdonald Duncan CharlesDual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US20090301724 *Dec 10, 2009Shell Oil CompanyMethods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20090321075 *Dec 31, 2009Christopher Kelvin HarrisParallel heater system for subsurface formations
US20100071904 *Mar 25, 2010Shell Oil CompanyHydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US20100089584 *Oct 9, 2009Apr 15, 2010David Booth BurnsDouble insulated heaters for treating subsurface formations
US20100089586 *Oct 9, 2009Apr 15, 2010John Andrew StaneckiMovable heaters for treating subsurface hydrocarbon containing formations
US20100096137 *Oct 9, 2009Apr 22, 2010Scott Vinh NguyenCirculated heated transfer fluid heating of subsurface hydrocarbon formations
US20100101783 *Oct 9, 2009Apr 29, 2010Vinegar Harold JUsing self-regulating nuclear reactors in treating a subsurface formation
US20100101784 *Oct 9, 2009Apr 29, 2010Vinegar Harold JControlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation
US20100101794 *Oct 9, 2009Apr 29, 2010Robert Charles RyanHeating subsurface formations with fluids
US20100108310 *Oct 9, 2009May 6, 2010Thomas David FowlerOffset barrier wells in subsurface formations
US20100108379 *Oct 9, 2009May 6, 2010David Alston EdburySystems and methods of forming subsurface wellbores
US20100147521 *Oct 9, 2009Jun 17, 2010Xueying XiePerforated electrical conductors for treating subsurface formations
US20100147522 *Oct 9, 2009Jun 17, 2010Xueying XieSystems and methods for treating a subsurface formation with electrical conductors
US20100206570 *Oct 9, 2009Aug 19, 2010Ernesto Rafael Fonseca OcamposCirculated heated transfer fluid systems used to treat a subsurface formation
US20100224368 *Sep 9, 2010Stanley Leroy MasonDeployment of insulated conductors for treating subsurface formations
US20100258265 *Apr 9, 2010Oct 14, 2010John Michael KaranikasRecovering energy from a subsurface formation
US20100258290 *Oct 14, 2010Ronald Marshall BassNon-conducting heater casings
US20100258291 *Apr 9, 2010Oct 14, 2010Everett De St Remey EdwardHeated liners for treating subsurface hydrocarbon containing formations
US20100258309 *Apr 9, 2010Oct 14, 2010Oluropo Rufus AyodeleHeater assisted fluid treatment of a subsurface formation
US20100270015 *Oct 28, 2010Shell Oil CompanyIn situ thermal processing of an oil shale formation
US20100272595 *Apr 26, 2010Oct 28, 2010Shell Oil CompanyHigh strength alloys
US20100276141 *Nov 4, 2010Shell Oil CompanyCreating fluid injectivity in tar sands formations
US20110042084 *Feb 24, 2011Robert BosIrregular pattern treatment of a subsurface formation
US20110088904 *Apr 21, 2011De Rouffignac Eric PierreIn situ recovery from a hydrocarbon containing formation
US20110168394 *Dec 9, 2010Jul 14, 2011Shell Oil CompanyMethods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20140352973 *Dec 17, 2012Dec 4, 2014Shell Internationale Research Maatschappij B.V.Method and system for stimulating fluid flow in an upwardly oriented oilfield tubular
CN103233712A *May 9, 2013Aug 7, 2013谢伟Multifunctional thermal recovery device for heavy oil well
WO1996004461A1 *Jul 18, 1995Feb 15, 1996Noranda IncDownhole electrical heating system
WO2013092449A1Dec 17, 2012Jun 27, 2013Shell Internationale Research Maatschappij B.V.Method and system for stimulating fluid flow in an upwardly oriented oilfield tubular
Classifications
U.S. Classification392/302, 392/492
International ClassificationE21B36/00, E21B36/04
Cooperative ClassificationE21B36/04
European ClassificationE21B36/04