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US3882941A - In situ production of bitumen from oil shale - Google Patents

In situ production of bitumen from oil shale Download PDF

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US3882941A
US3882941A US42544973A US3882941A US 3882941 A US3882941 A US 3882941A US 42544973 A US42544973 A US 42544973A US 3882941 A US3882941 A US 3882941A
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deposit
shale
bitumen
temperature
wells
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Arnold H Pelofsky
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Cities Service Res and Dev Co
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Cities Service Res and Dev Co
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/18Repressuring or vacuum methods
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection

Abstract

Hydrocarbons are recovered from oil shale deposits by introducing hot fluids into the deposits through wells and then shutting in the wells to allow kerogen in the deposits to be converted to bitumen which is then recovered through the wells after an extended period of soaking.

Description

United States Patent [191 Pelofsky [451 May 13, 1975 1 IN SlTU PRODUCTION OF BITUMEN FROM OIL SHALE [75] Inventor: Arnold H. Pelofsky, East Brunswick,

[73] Assignee: Cities Service Research &

Development Co., Cranbury, NJ.

[22] Filed: Dec. 17, 1973 [21] Appl. No.: 425,449

[52] US. Cl 166/303; 166/263 [51] Int. Cl E211) 43/24 [58] Field of Search 166/302, 303, 272, 263

[56] References Cited UNlTED STATES PATENTS 11/1966 Thomas 166/303 X 5/1967 Strubhar 166/303 X 3,358,762 12/1967 Closmann 166/303 3,382,922 5/1968 Needham..... 166/303 X 3,480,082 11/1969 Gilliland 166/303 X 3,515,213 6/1970 Prats 166/303 X 3,550,685 12/1970 Parker 166/303 3,618,663 11/1971 Needham 166/303 X Primary ExaminerStephen J. Novosad Attorney, Agent, or Firm-Joshua J. Ward; George L. Rushton [57] ABSTRACT Hydrocarbons are recovered from oil shale deposits by introducing hot fluids into the deposits through wells and then shutting in the wells to allow kerogen in the deposits to be converted to bitumen which is then recovered through the wells after an extended period of soaking.

6 Claims, 2 Drawing Figures IN SITU PRODUCTION OF BITUMEN FROM OIL SHALE BACKGROUND OF THE INVENTION This invention relates to the recovery of bitumen from oil shale and more particularly to an in situ process for conversion of kerogen to bitumen and recovery of the resulting bitumen.

Oil shale deposits are found in many locations throughout the world and are a potential source of extremely large quantities of hydrocarbon products. Oil shale is generally a laminated, nonporous, impermeable, fine-grained dolomitic marlstone containing variable but relatively large amounts of organic matter known as kerogen. Kerogen is a high molecular weight substance largely insoluble in benzene and which is dispersed throughout an inorganic matric composed-principally of carbonates along with other minor constituents. The kerogen in oil shale is relatively rich in hydrogen and will yield a benzene soluble material (bitumen) on heating.

Many proposals have been made for recovering usuable hydrocarbons from oil shales, most of which involve the use of heat in one form or another to soften or liquefy the kerogen for conversion to bitumen or for further conversion to produce both liquid and gaseous products. The heat may be applied in situ or the shale may be mined by conventional mining methods with subsequent heating or retorting of the mined shale. In conventional in situ retorting, a heating agent is injected into one or more wells extending into the shale deposit and product is produced through the same or separate wells. It is also known to inject air into the formation to ignite the kerogen and form a combustion front which is then moved through the formation in a conventional manner to liquefy and partially gasify the kerogen and carry the liquid and gaseous product through the formation to wells from which it may be recovered. In situ processes frequently involve fracturing the shale deposit to facilitate contact between heating agents and kerogen.

In all of the previously known in situ processes for recovery of bitumen from shale deposits, thermal efficiency has been extremely low because, once formed from the kerogen, bitumen has been recovered at relatively high temperatures. Also a significant amount of the bitumen that has been formed migrates through the formation and is not recovered. It is therefore an object of the present invention to recover bitumen from shale deposits by means of a novel in situ recovery process which involves recovery of substantial quantities of bitumen with a high degree of thermal efficiency and to reduce the migration of the bitumen out of the formation.

SUMMARY OF THE INVENTION Hydrocarbon product is recovered from a subterranean deposit of oil-shale by introducing heat energy into the deposit through one or more wells extending into the deposit. Heat energy is introduced in quantities sufficient to heat the deposit in the vicinity of the wells to more than 50F (Fahrenheit Degrees) above its transition temperature (the temperature at which exfoliation of the shale structure commences).The wells are then shut in until the temperature in the vicinity of the wells drops to less than 50 above transition temperature, at which time the wells are again opened and bitumen is produced therefrom.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a vertical cross-sectional view illustrating use of the present invention in recovery of hydrocarbons from an oil shale deposit.

FIG. 2 is a horizontal cross-sectional view further illustrating use of the invention in recovering hydrocarbons from oil shale deposits.

DETAILED DESCRIPTION OF THE INVENTION those at which bitumen is normally recovered from such deposits while achieving at the same time recovcry of substantial quantities of the total possible recoverable hydrocarbons. As mentioned above, this is accomplished by introducing heat energy into the deposit through one or more wells extending into the deposit with the heat energy being introduced in quantities sufficient to heat the deposit in the vicinity of the wells to more than 50F above its transition temperature. The transition temperature is considered to be that temperature at which exfoliation (swelling) of the shale structure begins to take place. The wells are then shut in until the temperature of the deposit in the vicinity of the wells drops to less than 50F above the transition temperature of the deposit at which point the wells may be opened and bitumen produced therefromor additional heat energy may be introduced for conversion of additional kerogen to bitumen. If the bitumen is not removed, it will act as a solvent and tend to solubilize more of the kerogen.

The exfoliation temperature for a particular shale deposit varies depending on the amount of kerogen contained in the shale between about 600 and about 700F. with the lower transition temperatures occuring in connection with relatively richer shale deposits. When an oil shale deposit is heated to above its transition temperature in the absence of oxygen, exfoliation is accompanied by a marked increase in permeability. If the shale is allowed to remain above the transition temperature for a few hours, the permeability decreases again to the original value, usually essentially zero. If,'however, the shale deposit is maintained above its transition temperature for a substantial length of time, such as weeks or months, significant portions of the kerogen are converted to bitumen which has substantially lower viscosity than the kerogen and can flow freely through the inorganic matrix of the shale deposit. In accordance with this invention, the shale deposit is heated to more than 5OF and preferably at least about F above its transition temperature and then allowed to cool to less than 50F, preferably to about 25F or less above its transition temperature before recovery of any bitumen therefrom. This allows ample time for substantial quantities of kerogen to convert to bitumen and allows heat to be transferred to further portions of the formation to avoid loss of thermal efficiency in recovery of bitumen from the deposit. It also allows the bitumen to act as a solubilizing agent on the undissolved or unconverted kerogen.

Introduction of heat energy to a shale deposit in accordance with the invention can be by any suitable means with use of hot fluids at temperatures between about 700 and about 2,000F. being preferred. Preferred fluids include steam and hot water although other fluids not containing free oxygen, such as liquid or vaporous hydrocarbons, flue gas, etc. may be used.

Because of the extremely low permeability of oil shale deposits, it is usually not possible to inject hot fluids at normal injection rates without increasing pressure in the injection well to an undesirable degree before the desired rise in temperature has taken place in significant portions of the surrounding shale deposit. It is therefore preferred that the initial step of heating the deposit in the vicinity of the wellbores to more than 5OF- above its transition temperature be done in stages. In this preferred embodiment of the invention, hot fluid is injected through the wells until the pressure is raised to between about 200 and about 1,000 psi above normal formation pressure of the deposit. The wells are then shut in for a period of time necessary to allow the pressure to drop to less than about 50 psi above the formation pressure of the deposit. This frequently takes between about 2 weeks and about six months. Additional hot fluid is then injected until the pressure again rises more than 200 psi above formation pressure. Similar cycles of injection and shut in are continued until the temperature in the vicinity of the injection wells reaches the desired range of more than 50F above the transition temperature of the deposit. The injection wells'are then shut in until the temperature in the vicinityof the wells drops to less than 5OF above the transition temperature of the deposit at which time bitumen may be produced from the wells or, preferably, injection of hot fluids as described above is again resumed. By so resuming injection of hot fluids, the affected area of the shale deposit may be extended beyond that possible by merely raising the temperature in the immediate vicinity of the wells. This is possible because of the increased permeability of the formation in the vicinity of the wells due to conversion of kerogen to lower viscosity bitumen during the injection and shut in cycles mentioned above and also because the bitumen tends to so]- ubilize additional kerogen.

Once the deposit in the immediate vicinity of the injection wells has been heated to more than 50F above its transition temperature, it is preferred that the wells be shut in for between about 6 months and about 1 year to allow the temperature to drop to less than 50F and more preferably to less than 25F above transition temperature. Bitumen may then be produced from the wells or more preferably injection of hot fluids may be resumed to extend the affected area of the deposit before production of any bitumen therefrom. Such expansion of the effected area of the deposit preferably is carried out in the same manner as the original heating of the deposit described above, i.e., hot fluids are injected into the deposit until the well pressures rise to between about 200 and about 1,000 psi above normal formation pressures, the wells are shut in for between about 2 weeks and about 6 months to allow pressure to return to less than 50 psi above formation pressure and injection of hot fluids is then resumed on the same basis until temperatures in the previously unaffected portions of the shale deposit surrounding the wells have been raised to more than 50F. above their transition temperatures. The increase in temperature of previously unaffected shale deposit may in part. or in whole be achieved by indirect transfer of the heat from the injected hot fluids through previously formed bitumen.

It is preferred that the introduction of heat energy into the shale deposit as described above be'continued until the deposit has been heated to more thanv 5OF above its transition temperature throughout a sphere having a radius of at least about 50 feet from the injection point of each well through whichhot fluid has been injected. Each portion of the deposit so heated should then be allowed to soak with the wells shut in until the temperature again drops to less than 50F above the transition temperature (usually for a period of at least about 6 months) to allow time for conversion of kerogen to bitumen. For maximum efficiency of recovery, it is preferred that no bitumen be produced from the deposit until all of the above heating and soaking cycles have been completed at least once for each portion of the deposit contained within the spheres mentioned above.

ln practicing the invention, it is important to avoid fracturing the shale deposit since any fractures .formed beyond the area of the deposit in which kerogen is transformed to bitumen will result in excessive loss of bitumen into other portions of the deposit-or surrounding formations. For the same reason, it is not desirable to allow the portions of the deposit in which kerogen is converted to bitumen to extend to the boundaries of the shale deposit if the surrounding or underlying formations or overburden are permeable. For this reason, it is preferred that theinvention be practiced in shale deposits having a thickness of at least about 200 feet and that the periphery of each of the spheres of affected area in which kerogen is converted to bitumen remain a minimum of at least about 50 feet fromthe boundary of the deposit. Overlapping of affected spheres is, of course, permissible and frequently desirable to ensure maximum recovery of hydrocarbons but it is preferred that overlapping be kept to the minimum necessary to obtain desired recovery of hydrocarbons. Otherwise, excessive temperatures may build up in portions of the deposit thereby resulting in thermal inefficiency of undesirably long periods of time being required for heat to be transferred to other portions of the deposit. For this reason, it is preferred that the average temperature of affected portions of the shale deposits not rise above about 900F. and that, to the extent practical, temperatures above about 1200F. be avoided completely.

In practicing the invention, the temperature of the shale deposit may be determined by temperature sensing means introduced into the deposit such as through the wells used to inject hot fluids or by means such as infrared aerial photography which allows reasonably accurate determination of temperatures throughout the deposit. Most accurate temperature information is usually obtained by a combination of these or other temperature measuring means. g

If the invention is carried out using the preferred embodiments described above, it is normally feasible to convert at least about percent and; frequently at least about percent of the kerogen inthe af ected areas of the deposit intobitumen-and to recover at least about 65 percent of such bitumen from the deposit. Recovery initially is by merely opening the injection wells as described above but it should be understood that in addition, other conventional primary, secondary and even tertiary recovery processes may be used as desired to recover bitumen.

Referring to the drawings, FIG. 1 shows a well 12 extending from the surface of the earth 14 through overburden formation 16 into a shale oil deposit 18. An underlying formation 20 is also indicated. The well 12 may be suitably lined and equipped with tubing, etc. in a conventional manner. A conduit 22 communicates at one end thereof to the top of the well l2. The other end of conduit 22 may be connected to a source of hot injection fluids (not shown) or may be connected to means for recovering bitumen produced from the shale deposit 18. Means (not shown) are also provided for closing off the conduit 22 completely to shut in the well 12.

As an example of recovery of hydrocarbons from oil shale in accordance with a preferred embodiment of the invention, superheated steam at a temperature of about 1,000F. may be introduced through the conduit 22 and well 12 into the shale deposit 18. The shale deposit 18 for this example begins about 2,000 feet below the surface and has a thickness of 200 feet from top to bottom and a normal formation pressure of about 1,000 psi. Injection of steam at the rate of 4,000 pounds per hour through the well 12 for up to 8 hours will increase the well pressure to 2000 psi at which time the well is shut in for 4 weeks to allow the pressure to return to less than 50 psi above the formation pressure. Three subsequent similar cycles of injection and shutting in are required to raise the temperature of the shale deposit in the vicinity of the well (within a sphere 24 as represented in FIG. 1) to a temperature 100F. above the formation transition temperature of 562F. The well 12 is then shut in for 6 months during which time the temperature within the sphere 24 diminishes to 587F. (25 above formation transitions temperature). At this time at least about 20 percent of the kerogen contained within the sphere 24 has been converted to bitumen. A series of injections and shut ins similar to that described immediately above is then used to extend the affected area of the shale deposit to encompass all the material within a sphere 26 (FIG. 1). Also during this period of time more of the kerogen is converted to bitumen by the action of not only the heat energy but also the solubilizing effect of the bitumen itself until about 90% of the kerogen is converted. Another complete series of injections and shut ins as described above is used to extend the effected area of the shale deposit in which kerogen is converted to bitumen to encompass material within the sphere 28 as shown in FIG. 1. At this time (a total of years after the start of the injections) bitumen is produced from theshale deposit through the well 12. A total of 65 percent of the bitumen contained within the deposit is produced by primary recovery and an additional 25 percent is available for production by conventional secondary and tertiary methods.

To recover the maximum amount of hydrocarbons from a shale formation it is generally desirable to use more than one well as is depicted in FIG. 2 which shows an oil shale deposit 32 with a number of wells such as 34 and 40 completed within the shale deposit. By injecvert kerogen to bitumen throughout the maximum possible volume of the deposit and that none of the spheres reaches the boundary of the deposit. By keeping the spheres from reaching the boundary of the shale deposit and avoiding fracturing of the shale, it is possible to take advantage of the extremely low permeability of the natural shale deposit to prevent loss of bitumen be fore it can be produced from the deposit.

While the invention has been described above with respect to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit or scope of the invention.

What is claimed is:

l. A process for recovering hydrocarbon product from a subterranean deposit of oil shale which comprises the steps of:

a. introducing heat energy in the form of hot fluids not containing oxygen into said deposit through one or more wells extending into the deposit, said heat energy being introduced in quantities sufficient to heat the deposit in the vicinity of the wells to more than about 50F above its transition temperature and until the pressure at the bottom of the wells is from at least 200 to about 1,000 psi about the formation pressure of the deposit;

b. then shutting in said wells until the temperature in the vicinity of the wells drops to less than about 50F above the transition temperature of the deposit until the pressure at the bottom thereof drops to less than about 50 psi above formation pressure, with the shutting in period lasting from about two weeks to about 6 months;

c. repeating steps (a) and (b) for a period of from about I to about 10 years; and

d. producing bitumen through said wells.

2. The process of claim 1 in which steps (a) and (b) are repeated until the deposit has been heated to more than 50F above its transition temperature and then allowed to drop to less than 5OF above its transition temperature throughout a sphere having a radius of at least about 50 feet from the bottom of each of said wells.

3. The process of claim 2 in which at least about percent of the kerogen in the spheres is converted to bitumen before bitumen is produced through the wells.

4. The process of claim 2 in which the deposit of oil shale is at least about 200 feet thick, the radius of each of the spheres is between about 50 and about 500 feet and the periphery of each sphere is at least 50 feet from the boundary of the deposit.

5. The process of claim 1 in which heat energy is injected in the form of hot fluids at a temperature of bet-ween about 500and about 2,000F.

6. The process of claim 1 in which step (b) takes at least about 6 months.

Claims (6)

1. A PROCESS FOR RECOVERING HYDROCARBON PRODUCT FROM ASUBTERRANEAN DEPOSIT OF OIL SHALE WHICH COMPRISES THE STEPS OF: A. INTRODUCING HEAT ENERGY IN THE FORM OF HOT FLUIDS NOT CONTAINING OXYGEN INTO SAID DEPOSIT THROUGH ONE OR MORE WELLS EXTENDING INTO THE DEPOSITS, SAID HEATING ENERGY BEING INTRODUCED IN QUANTITIES SUFFICIENT TO HEAT THE DEPOSIT IN THE VICINITY OF THE WELLS TO MORE THAN ABOUT 50%F ABOVE IS TRANSITION TEMPERATURE AND UNTIL THE PRESSURE AT THE BOTTOM OF THE WELLS IS FROM AT LEAST 200 TO ABOUT 1,000 PSIABOUT THE FORMATION PRESSURE OF THE DEPOSIT;
2. The process of claim 1 in which steps (a) and (b) are repeated until the deposit has been heated to more than 50F* above its transition temperature and then allowed to drop to less than 50F* above its transition temperature throughout a sphere having a radius of at least about 50 feet from the bottom of each of said wells.
3. The process of claim 2 in which at least about 75 percent of the kerogen in the spheres is converted to bitumen before bitumen is produced through the wells.
4. The process of claim 2 in which the deposit of oil shale is at least about 200 feet thick, the radius of each of the spheres is between about 50 and about 500 feet and the periphery of each sphere is at least 50 feet from the boundary of the deposit.
5. The process of claim 1 in which heat energy is injected in the form of hot fluids at a temperature of between about 500*and about 2,000*F.
6. The process of claim 1 in which step (b) takes at least about 6 months.
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Cited By (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091869A (en) * 1976-09-07 1978-05-30 Exxon Production Research Company In situ process for recovery of carbonaceous materials from subterranean deposits
US4105072A (en) * 1976-11-29 1978-08-08 Occidental Oil Shale Process for recovering carbonaceous values from post in situ oil shale retorting
US4160481A (en) * 1977-02-07 1979-07-10 The Hop Corporation Method for recovering subsurface earth substances
US4257650A (en) * 1978-09-07 1981-03-24 Barber Heavy Oil Process, Inc. Method for recovering subsurface earth substances
US4263970A (en) * 1977-01-27 1981-04-28 Occidental Oil Shale, Inc. Method for assuring uniform combustion in an in situ oil shale retort
US4667739A (en) * 1986-03-10 1987-05-26 Shell Oil Company Thermal drainage process for recovering hot water-swollen oil from a thick tar sand
US4753293A (en) * 1982-01-18 1988-06-28 Trw Inc. Process for recovering petroleum from formations containing viscous crude or tar
US5025863A (en) * 1990-06-11 1991-06-25 Marathon Oil Company Enhanced liquid hydrocarbon recovery process
US5036918A (en) * 1989-12-06 1991-08-06 Mobil Oil Corporation Method for improving sustained solids-free production from heavy oil reservoirs
US5036917A (en) * 1989-12-06 1991-08-06 Mobil Oil Corporation Method for providing solids-free production from heavy oil reservoirs
WO2001081239A2 (en) * 2000-04-24 2001-11-01 Shell Internationale Research Maatschappij B.V. In situ recovery from a hydrocarbon containing formation
US20030066642A1 (en) * 2000-04-24 2003-04-10 Wellington Scott Lee In situ thermal processing of a coal formation producing a mixture with oxygenated hydrocarbons
US6588504B2 (en) 2000-04-24 2003-07-08 Shell Oil Company In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
WO2003062619A1 (en) * 2002-01-25 2003-07-31 Precision Drilling Technology Services Group Inc. Apparatus and method for operating an internal combustion engine to reduce free oxygen contained within engine exhaust gas
GB2391890A (en) * 2000-04-24 2004-02-18 Shell Int Research In-situ pyrolytic recovery from a hydrocarbon formation
US6698515B2 (en) 2000-04-24 2004-03-02 Shell Oil Company In situ thermal processing of a coal formation using a relatively slow heating rate
US6715548B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids
US6715546B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore
US20070023186A1 (en) * 2003-11-03 2007-02-01 Kaminsky Robert D Hydrocarbon recovery from impermeable oil shales
US20070039729A1 (en) * 2005-07-18 2007-02-22 Oil Sands Underground Mining Corporation Method of increasing reservoir permeability
US20070044957A1 (en) * 2005-05-27 2007-03-01 Oil Sands Underground Mining, Inc. Method for underground recovery of hydrocarbons
US20070137857A1 (en) * 2005-04-22 2007-06-21 Vinegar Harold J Low temperature monitoring system for subsurface barriers
US20080017416A1 (en) * 2006-04-21 2008-01-24 Oil Sands Underground Mining, Inc. Method of drilling from a shaft for underground recovery of hydrocarbons
US20080073079A1 (en) * 2006-09-26 2008-03-27 Hw Advanced Technologies, Inc. Stimulation and recovery of heavy hydrocarbon fluids
US20080078552A1 (en) * 2006-09-29 2008-04-03 Osum Oil Sands Corp. Method of heating hydrocarbons
US20080087422A1 (en) * 2006-10-16 2008-04-17 Osum Oil Sands Corp. Method of collecting hydrocarbons using a barrier tunnel
US20090084707A1 (en) * 2007-09-28 2009-04-02 Osum Oil Sands Corp. Method of upgrading bitumen and heavy oil
US20090100754A1 (en) * 2007-10-22 2009-04-23 Osum Oil Sands Corp. Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil
US20090139716A1 (en) * 2007-12-03 2009-06-04 Osum Oil Sands Corp. Method of recovering bitumen from a tunnel or shaft with heating elements and recovery wells
US20090194280A1 (en) * 2008-02-06 2009-08-06 Osum Oil Sands Corp. Method of controlling a recovery and upgrading operation in a reservoir
US20090308608A1 (en) * 2008-05-23 2009-12-17 Kaminsky Robert D Field Managment For Substantially Constant Composition Gas Generation
US7644765B2 (en) 2006-10-20 2010-01-12 Shell Oil Company Heating tar sands formations while controlling pressure
US7673786B2 (en) 2006-04-21 2010-03-09 Shell Oil Company Welding shield for coupling heaters
US7735935B2 (en) 2001-04-24 2010-06-15 Shell Oil Company In situ thermal processing of an oil shale formation containing carbonate minerals
US20100147521A1 (en) * 2008-10-13 2010-06-17 Xueying Xie Perforated electrical conductors for treating subsurface formations
US7798220B2 (en) 2007-04-20 2010-09-21 Shell Oil Company In situ heat treatment of a tar sands formation after drive process treatment
US7866386B2 (en) 2007-10-19 2011-01-11 Shell Oil Company In situ oxidation of subsurface formations
US7942203B2 (en) 2003-04-24 2011-05-17 Shell Oil Company Thermal processes for subsurface formations
US8082995B2 (en) 2007-12-10 2011-12-27 Exxonmobil Upstream Research Company Optimization of untreated oil shale geometry to control subsidence
US8087460B2 (en) 2007-03-22 2012-01-03 Exxonmobil Upstream Research Company Granular electrical connections for in situ formation heating
US8104537B2 (en) 2006-10-13 2012-01-31 Exxonmobil Upstream Research Company Method of developing subsurface freeze zone
US8122955B2 (en) 2007-05-15 2012-02-28 Exxonmobil Upstream Research Company Downhole burners for in situ conversion of organic-rich rock formations
US8146664B2 (en) 2007-05-25 2012-04-03 Exxonmobil Upstream Research Company Utilization of low BTU gas generated during in situ heating of organic-rich rock
US8151907B2 (en) 2008-04-18 2012-04-10 Shell Oil Company Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US8151880B2 (en) 2005-10-24 2012-04-10 Shell Oil Company Methods of making transportation fuel
US8151884B2 (en) 2006-10-13 2012-04-10 Exxonmobil Upstream Research Company Combined development of oil shale by in situ heating with a deeper hydrocarbon resource
US8151877B2 (en) 2007-05-15 2012-04-10 Exxonmobil Upstream Research Company Downhole burner wells for in situ conversion of organic-rich rock formations
US8209192B2 (en) 2008-05-20 2012-06-26 Osum Oil Sands Corp. Method of managing carbon reduction for hydrocarbon producers
US8224163B2 (en) 2002-10-24 2012-07-17 Shell Oil Company Variable frequency temperature limited heaters
US8313152B2 (en) 2006-11-22 2012-11-20 Osum Oil Sands Corp. Recovery of bitumen by hydraulic excavation
US8327932B2 (en) 2009-04-10 2012-12-11 Shell Oil Company Recovering energy from a subsurface formation
US8355623B2 (en) 2004-04-23 2013-01-15 Shell Oil Company Temperature limited heaters with high power factors
US8540020B2 (en) 2009-05-05 2013-09-24 Exxonmobil Upstream Research Company Converting organic matter from a subterranean formation into producible hydrocarbons by controlling production operations based on availability of one or more production resources
US8596355B2 (en) 2003-06-24 2013-12-03 Exxonmobil Upstream Research Company Optimized well spacing for in situ shale oil development
US8616280B2 (en) 2010-08-30 2013-12-31 Exxonmobil Upstream Research Company Wellbore mechanical integrity for in situ pyrolysis
US8616279B2 (en) 2009-02-23 2013-12-31 Exxonmobil Upstream Research Company Water treatment following shale oil production by in situ heating
US8622133B2 (en) 2007-03-22 2014-01-07 Exxonmobil Upstream Research Company Resistive heater for in situ formation heating
US8622127B2 (en) 2010-08-30 2014-01-07 Exxonmobil Upstream Research Company Olefin reduction for in situ pyrolysis oil generation
US8627887B2 (en) 2001-10-24 2014-01-14 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US8631866B2 (en) 2010-04-09 2014-01-21 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
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US8701768B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations
US8701788B2 (en) 2011-12-22 2014-04-22 Chevron U.S.A. Inc. Preconditioning a subsurface shale formation by removing extractible organics
US8770284B2 (en) 2012-05-04 2014-07-08 Exxonmobil Upstream Research Company Systems and methods of detecting an intersection between a wellbore and a subterranean structure that includes a marker material
US8820406B2 (en) 2010-04-09 2014-09-02 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore
US8839860B2 (en) 2010-12-22 2014-09-23 Chevron U.S.A. Inc. In-situ Kerogen conversion and product isolation
US8851177B2 (en) 2011-12-22 2014-10-07 Chevron U.S.A. Inc. In-situ kerogen conversion and oxidant regeneration
US8863839B2 (en) 2009-12-17 2014-10-21 Exxonmobil Upstream Research Company Enhanced convection for in situ pyrolysis of organic-rich rock formations
US8875789B2 (en) 2007-05-25 2014-11-04 Exxonmobil Upstream Research Company Process for producing hydrocarbon fluids combining in situ heating, a power plant and a gas plant
US8992771B2 (en) 2012-05-25 2015-03-31 Chevron U.S.A. Inc. Isolating lubricating oils from subsurface shale formations
US9016370B2 (en) 2011-04-08 2015-04-28 Shell Oil Company Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment
US9033033B2 (en) 2010-12-21 2015-05-19 Chevron U.S.A. Inc. Electrokinetic enhanced hydrocarbon recovery from oil shale
US9033042B2 (en) 2010-04-09 2015-05-19 Shell Oil Company Forming bitumen barriers in subsurface hydrocarbon formations
US9080441B2 (en) 2011-11-04 2015-07-14 Exxonmobil Upstream Research Company Multiple electrical connections to optimize heating for in situ pyrolysis
US9181467B2 (en) 2011-12-22 2015-11-10 Uchicago Argonne, Llc Preparation and use of nano-catalysts for in-situ reaction with kerogen
US9309755B2 (en) 2011-10-07 2016-04-12 Shell Oil Company Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations
US9394772B2 (en) 2013-11-07 2016-07-19 Exxonmobil Upstream Research Company Systems and methods for in situ resistive heating of organic matter in a subterranean formation
US9512699B2 (en) 2013-10-22 2016-12-06 Exxonmobil Upstream Research Company Systems and methods for regulating an in situ pyrolysis process
US9644466B2 (en) 2014-11-21 2017-05-09 Exxonmobil Upstream Research Company Method of recovering hydrocarbons within a subsurface formation using electric current

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284281A (en) * 1964-08-31 1966-11-08 Phillips Petroleum Co Production of oil from oil shale through fractures
US3322194A (en) * 1965-03-25 1967-05-30 Mobil Oil Corp In-place retorting of oil shale
US3358762A (en) * 1965-12-06 1967-12-19 Shell Oil Co Thermoaugmentation of oil-producing reservoirs
US3382922A (en) * 1966-08-31 1968-05-14 Phillips Petroleum Co Production of oil shale by in situ pyrolysis
US3480082A (en) * 1967-09-25 1969-11-25 Continental Oil Co In situ retorting of oil shale using co2 as heat carrier
US3515213A (en) * 1967-04-19 1970-06-02 Shell Oil Co Shale oil recovery process using heated oil-miscible fluids
US3550685A (en) * 1967-12-20 1970-12-29 Phillips Petroleum Co Shale oil production
US3618663A (en) * 1969-05-01 1971-11-09 Phillips Petroleum Co Shale oil production

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284281A (en) * 1964-08-31 1966-11-08 Phillips Petroleum Co Production of oil from oil shale through fractures
US3322194A (en) * 1965-03-25 1967-05-30 Mobil Oil Corp In-place retorting of oil shale
US3358762A (en) * 1965-12-06 1967-12-19 Shell Oil Co Thermoaugmentation of oil-producing reservoirs
US3382922A (en) * 1966-08-31 1968-05-14 Phillips Petroleum Co Production of oil shale by in situ pyrolysis
US3515213A (en) * 1967-04-19 1970-06-02 Shell Oil Co Shale oil recovery process using heated oil-miscible fluids
US3480082A (en) * 1967-09-25 1969-11-25 Continental Oil Co In situ retorting of oil shale using co2 as heat carrier
US3550685A (en) * 1967-12-20 1970-12-29 Phillips Petroleum Co Shale oil production
US3618663A (en) * 1969-05-01 1971-11-09 Phillips Petroleum Co Shale oil production

Cited By (240)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091869A (en) * 1976-09-07 1978-05-30 Exxon Production Research Company In situ process for recovery of carbonaceous materials from subterranean deposits
US4105072A (en) * 1976-11-29 1978-08-08 Occidental Oil Shale Process for recovering carbonaceous values from post in situ oil shale retorting
US4263970A (en) * 1977-01-27 1981-04-28 Occidental Oil Shale, Inc. Method for assuring uniform combustion in an in situ oil shale retort
US4160481A (en) * 1977-02-07 1979-07-10 The Hop Corporation Method for recovering subsurface earth substances
US4257650A (en) * 1978-09-07 1981-03-24 Barber Heavy Oil Process, Inc. Method for recovering subsurface earth substances
US4753293A (en) * 1982-01-18 1988-06-28 Trw Inc. Process for recovering petroleum from formations containing viscous crude or tar
US4667739A (en) * 1986-03-10 1987-05-26 Shell Oil Company Thermal drainage process for recovering hot water-swollen oil from a thick tar sand
US5036918A (en) * 1989-12-06 1991-08-06 Mobil Oil Corporation Method for improving sustained solids-free production from heavy oil reservoirs
US5036917A (en) * 1989-12-06 1991-08-06 Mobil Oil Corporation Method for providing solids-free production from heavy oil reservoirs
US5025863A (en) * 1990-06-11 1991-06-25 Marathon Oil Company Enhanced liquid hydrocarbon recovery process
US8789586B2 (en) 2000-04-24 2014-07-29 Shell Oil Company In situ recovery from a hydrocarbon containing formation
WO2001081239A3 (en) * 2000-04-24 2002-05-23 Shell Oil Co In situ recovery from a hydrocarbon containing formation
GB2379469A (en) * 2000-04-24 2003-03-12 Shell Int Research In situ recovery from a hydrocarbon containing formation
US20030066642A1 (en) * 2000-04-24 2003-04-10 Wellington Scott Lee In situ thermal processing of a coal formation producing a mixture with oxygenated hydrocarbons
US6581684B2 (en) 2000-04-24 2003-06-24 Shell Oil Company In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids
US6588504B2 (en) 2000-04-24 2003-07-08 Shell Oil Company In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
US6588503B2 (en) 2000-04-24 2003-07-08 Shell Oil Company In Situ thermal processing of a coal formation to control product composition
US6591907B2 (en) 2000-04-24 2003-07-15 Shell Oil Company In situ thermal processing of a coal formation with a selected vitrinite reflectance
US6591906B2 (en) 2000-04-24 2003-07-15 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content
US8225866B2 (en) 2000-04-24 2012-07-24 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US6607033B2 (en) 2000-04-24 2003-08-19 Shell Oil Company In Situ thermal processing of a coal formation to produce a condensate
US6609570B2 (en) 2000-04-24 2003-08-26 Shell Oil Company In situ thermal processing of a coal formation and ammonia production
US6688387B1 (en) 2000-04-24 2004-02-10 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate
GB2391890A (en) * 2000-04-24 2004-02-18 Shell Int Research In-situ pyrolytic recovery from a hydrocarbon formation
US6698515B2 (en) 2000-04-24 2004-03-02 Shell Oil Company In situ thermal processing of a coal formation using a relatively slow heating rate
US6702016B2 (en) * 2000-04-24 2004-03-09 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer
US6708758B2 (en) 2000-04-24 2004-03-23 Shell Oil Company In situ thermal processing of a coal formation leaving one or more selected unprocessed areas
US6712136B2 (en) 2000-04-24 2004-03-30 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing
US6712135B2 (en) 2000-04-24 2004-03-30 Shell Oil Company In situ thermal processing of a coal formation in reducing environment
US6712137B2 (en) 2000-04-24 2004-03-30 Shell Oil Company In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material
WO2001081239A2 (en) * 2000-04-24 2001-11-01 Shell Internationale Research Maatschappij B.V. In situ recovery from a hydrocarbon containing formation
US6715548B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids
US6715546B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore
US6715549B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio
US6715547B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation
US6722431B2 (en) 2000-04-24 2004-04-20 Shell Oil Company In situ thermal processing of hydrocarbons within a relatively permeable formation
US6722429B2 (en) 2000-04-24 2004-04-20 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas
US8485252B2 (en) 2000-04-24 2013-07-16 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US6722430B2 (en) 2000-04-24 2004-04-20 Shell Oil Company In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio
US6725920B2 (en) * 2000-04-24 2004-04-27 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products
US6725928B2 (en) 2000-04-24 2004-04-27 Shell Oil Company In situ thermal processing of a coal formation using a distributed combustor
US6725921B2 (en) 2000-04-24 2004-04-27 Shell Oil Company In situ thermal processing of a coal formation by controlling a pressure of the formation
US6729401B2 (en) 2000-04-24 2004-05-04 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation and ammonia production
US6729397B2 (en) 2000-04-24 2004-05-04 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance
US6729395B2 (en) 2000-04-24 2004-05-04 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells
US6729396B2 (en) 2000-04-24 2004-05-04 Shell Oil Company In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range
US6732794B2 (en) 2000-04-24 2004-05-11 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
US6732796B2 (en) 2000-04-24 2004-05-11 Shell Oil Company In situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio
US6732795B2 (en) 2000-04-24 2004-05-11 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to pyrolyze a selected percentage of hydrocarbon material
US6736215B2 (en) 2000-04-24 2004-05-18 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration
US6739394B2 (en) 2000-04-24 2004-05-25 Shell Oil Company Production of synthesis gas from a hydrocarbon containing formation
US6739393B2 (en) 2000-04-24 2004-05-25 Shell Oil Company In situ thermal processing of a coal formation and tuning production
US6742593B2 (en) 2000-04-24 2004-06-01 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation
US6742587B2 (en) 2000-04-24 2004-06-01 Shell Oil Company In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation
US6742588B2 (en) 2000-04-24 2004-06-01 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content
US6742589B2 (en) 2000-04-24 2004-06-01 Shell Oil Company In situ thermal processing of a coal formation using repeating triangular patterns of heat sources
US6745837B2 (en) 2000-04-24 2004-06-08 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate
US6745831B2 (en) 2000-04-24 2004-06-08 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation
US6745832B2 (en) 2000-04-24 2004-06-08 Shell Oil Company Situ thermal processing of a hydrocarbon containing formation to control product composition
US6749021B2 (en) 2000-04-24 2004-06-15 Shell Oil Company In situ thermal processing of a coal formation using a controlled heating rate
US6752210B2 (en) 2000-04-24 2004-06-22 Shell Oil Company In situ thermal processing of a coal formation using heat sources positioned within open wellbores
US6758268B2 (en) 2000-04-24 2004-07-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate
US6761216B2 (en) 2000-04-24 2004-07-13 Shell Oil Company In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas
US6763886B2 (en) 2000-04-24 2004-07-20 Shell Oil Company In situ thermal processing of a coal formation with carbon dioxide sequestration
US6769483B2 (en) 2000-04-24 2004-08-03 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources
US6769485B2 (en) 2000-04-24 2004-08-03 Shell Oil Company In situ production of synthesis gas from a coal formation through a heat source wellbore
US6789625B2 (en) 2000-04-24 2004-09-14 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources
GB2379469B (en) * 2000-04-24 2004-09-29 Shell Int Research In situ recovery from a hydrocarbon containing formation
GB2391890B (en) * 2000-04-24 2004-09-29 Shell Int Research In situ recovery from a hydrocarbon containing formulation
US6805195B2 (en) 2000-04-24 2004-10-19 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas
US6820688B2 (en) 2000-04-24 2004-11-23 Shell Oil Company In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio
US7798221B2 (en) 2000-04-24 2010-09-21 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US6719047B2 (en) 2000-04-24 2004-04-13 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment
US8608249B2 (en) 2001-04-24 2013-12-17 Shell Oil Company In situ thermal processing of an oil shale formation
US7735935B2 (en) 2001-04-24 2010-06-15 Shell Oil Company In situ thermal processing of an oil shale formation containing carbonate minerals
US8627887B2 (en) 2001-10-24 2014-01-14 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US6722436B2 (en) 2002-01-25 2004-04-20 Precision Drilling Technology Services Group Inc. Apparatus and method for operating an internal combustion engine to reduce free oxygen contained within engine exhaust gas
WO2003062619A1 (en) * 2002-01-25 2003-07-31 Precision Drilling Technology Services Group Inc. Apparatus and method for operating an internal combustion engine to reduce free oxygen contained within engine exhaust gas
US8224164B2 (en) 2002-10-24 2012-07-17 Shell Oil Company Insulated conductor temperature limited heaters
US8238730B2 (en) 2002-10-24 2012-08-07 Shell Oil Company High voltage temperature limited heaters
US8224163B2 (en) 2002-10-24 2012-07-17 Shell Oil Company Variable frequency temperature limited heaters
US8579031B2 (en) 2003-04-24 2013-11-12 Shell Oil Company Thermal processes for subsurface formations
US7942203B2 (en) 2003-04-24 2011-05-17 Shell Oil Company Thermal processes for subsurface formations
US8596355B2 (en) 2003-06-24 2013-12-03 Exxonmobil Upstream Research Company Optimized well spacing for in situ shale oil development
US20070023186A1 (en) * 2003-11-03 2007-02-01 Kaminsky Robert D Hydrocarbon recovery from impermeable oil shales
US20090038795A1 (en) * 2003-11-03 2009-02-12 Kaminsky Robert D Hydrocarbon Recovery From Impermeable Oil Shales Using Sets of Fluid-Heated Fractures
US7441603B2 (en) 2003-11-03 2008-10-28 Exxonmobil Upstream Research Company Hydrocarbon recovery from impermeable oil shales
US7857056B2 (en) 2003-11-03 2010-12-28 Exxonmobil Upstream Research Company Hydrocarbon recovery from impermeable oil shales using sets of fluid-heated fractures
US8355623B2 (en) 2004-04-23 2013-01-15 Shell Oil Company Temperature limited heaters with high power factors
US8070840B2 (en) 2005-04-22 2011-12-06 Shell Oil Company Treatment of gas from an in situ conversion process
US7831134B2 (en) 2005-04-22 2010-11-09 Shell Oil Company Grouped exposed metal heaters
US7860377B2 (en) 2005-04-22 2010-12-28 Shell Oil Company Subsurface connection methods for subsurface heaters
US8027571B2 (en) 2005-04-22 2011-09-27 Shell Oil Company In situ conversion process systems utilizing wellbores in at least two regions of a formation
US20070137857A1 (en) * 2005-04-22 2007-06-21 Vinegar Harold J Low temperature monitoring system for subsurface barriers
US8233782B2 (en) 2005-04-22 2012-07-31 Shell Oil Company Grouped exposed metal heaters
US7986869B2 (en) * 2005-04-22 2011-07-26 Shell Oil Company Varying properties along lengths of temperature limited heaters
US8230927B2 (en) 2005-04-22 2012-07-31 Shell Oil Company Methods and systems for producing fluid from an in situ conversion process
US7942197B2 (en) 2005-04-22 2011-05-17 Shell Oil Company Methods and systems for producing fluid from an in situ conversion process
US8224165B2 (en) 2005-04-22 2012-07-17 Shell Oil Company Temperature limited heater utilizing non-ferromagnetic conductor
US20070044957A1 (en) * 2005-05-27 2007-03-01 Oil Sands Underground Mining, Inc. Method for underground recovery of hydrocarbons
US8287050B2 (en) 2005-07-18 2012-10-16 Osum Oil Sands Corp. Method of increasing reservoir permeability
US20070039729A1 (en) * 2005-07-18 2007-02-22 Oil Sands Underground Mining Corporation Method of increasing reservoir permeability
US8606091B2 (en) 2005-10-24 2013-12-10 Shell Oil Company Subsurface heaters with low sulfidation rates
US8151880B2 (en) 2005-10-24 2012-04-10 Shell Oil Company Methods of making transportation fuel
US8083813B2 (en) 2006-04-21 2011-12-27 Shell Oil Company Methods of producing transportation fuel
US7673786B2 (en) 2006-04-21 2010-03-09 Shell Oil Company Welding shield for coupling heaters
US7866385B2 (en) 2006-04-21 2011-01-11 Shell Oil Company Power systems utilizing the heat of produced formation fluid
US8641150B2 (en) 2006-04-21 2014-02-04 Exxonmobil Upstream Research Company In situ co-development of oil shale with mineral recovery
US7785427B2 (en) 2006-04-21 2010-08-31 Shell Oil Company High strength alloys
US7912358B2 (en) 2006-04-21 2011-03-22 Shell Oil Company Alternate energy source usage for in situ heat treatment processes
US8192682B2 (en) 2006-04-21 2012-06-05 Shell Oil Company High strength alloys
US8127865B2 (en) 2006-04-21 2012-03-06 Osum Oil Sands Corp. Method of drilling from a shaft for underground recovery of hydrocarbons
US7683296B2 (en) 2006-04-21 2010-03-23 Shell Oil Company Adjusting alloy compositions for selected properties in temperature limited heaters
US20080017416A1 (en) * 2006-04-21 2008-01-24 Oil Sands Underground Mining, Inc. Method of drilling from a shaft for underground recovery of hydrocarbons
US7793722B2 (en) 2006-04-21 2010-09-14 Shell Oil Company Non-ferromagnetic overburden casing
US8857506B2 (en) 2006-04-21 2014-10-14 Shell Oil Company Alternate energy source usage methods for in situ heat treatment processes
US7677673B2 (en) 2006-09-26 2010-03-16 Hw Advanced Technologies, Inc. Stimulation and recovery of heavy hydrocarbon fluids
US20080073079A1 (en) * 2006-09-26 2008-03-27 Hw Advanced Technologies, Inc. Stimulation and recovery of heavy hydrocarbon fluids
US20100163227A1 (en) * 2006-09-26 2010-07-01 Hw Advanced Technologies, Inc. Stimulation and recovery of heavy hydrocarbon fluids
US20080078552A1 (en) * 2006-09-29 2008-04-03 Osum Oil Sands Corp. Method of heating hydrocarbons
US20100224370A1 (en) * 2006-09-29 2010-09-09 Osum Oil Sands Corp Method of heating hydrocarbons
US8151884B2 (en) 2006-10-13 2012-04-10 Exxonmobil Upstream Research Company Combined development of oil shale by in situ heating with a deeper hydrocarbon resource
US8104537B2 (en) 2006-10-13 2012-01-31 Exxonmobil Upstream Research Company Method of developing subsurface freeze zone
US20080087422A1 (en) * 2006-10-16 2008-04-17 Osum Oil Sands Corp. Method of collecting hydrocarbons using a barrier tunnel
US7644769B2 (en) 2006-10-16 2010-01-12 Osum Oil Sands Corp. Method of collecting hydrocarbons using a barrier tunnel
US7845411B2 (en) 2006-10-20 2010-12-07 Shell Oil Company In situ heat treatment process utilizing a closed loop heating system
US7681647B2 (en) 2006-10-20 2010-03-23 Shell Oil Company Method of producing drive fluid in situ in tar sands formations
US7703513B2 (en) 2006-10-20 2010-04-27 Shell Oil Company Wax barrier for use with in situ processes for treating formations
US7677310B2 (en) 2006-10-20 2010-03-16 Shell Oil Company Creating and maintaining a gas cap in tar sands formations
US7673681B2 (en) 2006-10-20 2010-03-09 Shell Oil Company Treating tar sands formations with karsted zones
US7644765B2 (en) 2006-10-20 2010-01-12 Shell Oil Company Heating tar sands formations while controlling pressure
US7717171B2 (en) 2006-10-20 2010-05-18 Shell Oil Company Moving hydrocarbons through portions of tar sands formations with a fluid
US7730947B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Creating fluid injectivity in tar sands formations
US7730945B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Using geothermal energy to heat a portion of a formation for an in situ heat treatment process
US8555971B2 (en) 2006-10-20 2013-10-15 Shell Oil Company Treating tar sands formations with dolomite
US8191630B2 (en) 2006-10-20 2012-06-05 Shell Oil Company Creating fluid injectivity in tar sands formations
US7841401B2 (en) 2006-10-20 2010-11-30 Shell Oil Company Gas injection to inhibit migration during an in situ heat treatment process
US7730946B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Treating tar sands formations with dolomite
US7677314B2 (en) 2006-10-20 2010-03-16 Shell Oil Company Method of condensing vaporized water in situ to treat tar sands formations
US8313152B2 (en) 2006-11-22 2012-11-20 Osum Oil Sands Corp. Recovery of bitumen by hydraulic excavation
US8622133B2 (en) 2007-03-22 2014-01-07 Exxonmobil Upstream Research Company Resistive heater for in situ formation heating
US8087460B2 (en) 2007-03-22 2012-01-03 Exxonmobil Upstream Research Company Granular electrical connections for in situ formation heating
US9347302B2 (en) 2007-03-22 2016-05-24 Exxonmobil Upstream Research Company Resistive heater for in situ formation heating
US8381815B2 (en) 2007-04-20 2013-02-26 Shell Oil Company Production from multiple zones of a tar sands formation
US7832484B2 (en) 2007-04-20 2010-11-16 Shell Oil Company Molten salt as a heat transfer fluid for heating a subsurface formation
US7931086B2 (en) 2007-04-20 2011-04-26 Shell Oil Company Heating systems for heating subsurface formations
US7841408B2 (en) 2007-04-20 2010-11-30 Shell Oil Company In situ heat treatment from multiple layers of a tar sands formation
US9181780B2 (en) 2007-04-20 2015-11-10 Shell Oil Company Controlling and assessing pressure conditions during treatment of tar sands formations
US7950453B2 (en) 2007-04-20 2011-05-31 Shell Oil Company Downhole burner systems and methods for heating subsurface formations
US7841425B2 (en) 2007-04-20 2010-11-30 Shell Oil Company Drilling subsurface wellbores with cutting structures
US8327681B2 (en) 2007-04-20 2012-12-11 Shell Oil Company Wellbore manufacturing processes for in situ heat treatment processes
US8791396B2 (en) 2007-04-20 2014-07-29 Shell Oil Company Floating insulated conductors for heating subsurface formations
US7849922B2 (en) 2007-04-20 2010-12-14 Shell Oil Company In situ recovery from residually heated sections in a hydrocarbon containing formation
US8459359B2 (en) 2007-04-20 2013-06-11 Shell Oil Company Treating nahcolite containing formations and saline zones
US7798220B2 (en) 2007-04-20 2010-09-21 Shell Oil Company In situ heat treatment of a tar sands formation after drive process treatment
US8042610B2 (en) 2007-04-20 2011-10-25 Shell Oil Company Parallel heater system for subsurface formations
US8662175B2 (en) 2007-04-20 2014-03-04 Shell Oil Company Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities
US8122955B2 (en) 2007-05-15 2012-02-28 Exxonmobil Upstream Research Company Downhole burners for in situ conversion of organic-rich rock formations
US8151877B2 (en) 2007-05-15 2012-04-10 Exxonmobil Upstream Research Company Downhole burner wells for in situ conversion of organic-rich rock formations
US8146664B2 (en) 2007-05-25 2012-04-03 Exxonmobil Upstream Research Company Utilization of low BTU gas generated during in situ heating of organic-rich rock
US8875789B2 (en) 2007-05-25 2014-11-04 Exxonmobil Upstream Research Company Process for producing hydrocarbon fluids combining in situ heating, a power plant and a gas plant
US20090084707A1 (en) * 2007-09-28 2009-04-02 Osum Oil Sands Corp. Method of upgrading bitumen and heavy oil
US8196658B2 (en) 2007-10-19 2012-06-12 Shell Oil Company Irregular spacing of heat sources for treating hydrocarbon containing formations
US8240774B2 (en) 2007-10-19 2012-08-14 Shell Oil Company Solution mining and in situ treatment of nahcolite beds
US8011451B2 (en) 2007-10-19 2011-09-06 Shell Oil Company Ranging methods for developing wellbores in subsurface formations
US7866388B2 (en) 2007-10-19 2011-01-11 Shell Oil Company High temperature methods for forming oxidizer fuel
US8536497B2 (en) 2007-10-19 2013-09-17 Shell Oil Company Methods for forming long subsurface heaters
US8113272B2 (en) 2007-10-19 2012-02-14 Shell Oil Company Three-phase heaters with common overburden sections for heating subsurface formations
US8272455B2 (en) 2007-10-19 2012-09-25 Shell Oil Company Methods for forming wellbores in heated formations
US8276661B2 (en) 2007-10-19 2012-10-02 Shell Oil Company Heating subsurface formations by oxidizing fuel on a fuel carrier
US8146661B2 (en) 2007-10-19 2012-04-03 Shell Oil Company Cryogenic treatment of gas
US7866386B2 (en) 2007-10-19 2011-01-11 Shell Oil Company In situ oxidation of subsurface formations
US8162059B2 (en) 2007-10-19 2012-04-24 Shell Oil Company Induction heaters used to heat subsurface formations
US8146669B2 (en) 2007-10-19 2012-04-03 Shell Oil Company Multi-step heater deployment in a subsurface formation
US8167960B2 (en) 2007-10-22 2012-05-01 Osum Oil Sands Corp. Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil
US20090100754A1 (en) * 2007-10-22 2009-04-23 Osum Oil Sands Corp. Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil
US20090139716A1 (en) * 2007-12-03 2009-06-04 Osum Oil Sands Corp. Method of recovering bitumen from a tunnel or shaft with heating elements and recovery wells
US8082995B2 (en) 2007-12-10 2011-12-27 Exxonmobil Upstream Research Company Optimization of untreated oil shale geometry to control subsidence
US20090194280A1 (en) * 2008-02-06 2009-08-06 Osum Oil Sands Corp. Method of controlling a recovery and upgrading operation in a reservoir
US8176982B2 (en) 2008-02-06 2012-05-15 Osum Oil Sands Corp. Method of controlling a recovery and upgrading operation in a reservoir
US8172335B2 (en) 2008-04-18 2012-05-08 Shell Oil Company Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations
US9528322B2 (en) 2008-04-18 2016-12-27 Shell Oil Company Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US8177305B2 (en) 2008-04-18 2012-05-15 Shell Oil Company Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8636323B2 (en) 2008-04-18 2014-01-28 Shell Oil Company Mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8151907B2 (en) 2008-04-18 2012-04-10 Shell Oil Company Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US8562078B2 (en) 2008-04-18 2013-10-22 Shell Oil Company Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US8162405B2 (en) 2008-04-18 2012-04-24 Shell Oil Company Using tunnels for treating subsurface hydrocarbon containing formations
US8752904B2 (en) 2008-04-18 2014-06-17 Shell Oil Company Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations
US8209192B2 (en) 2008-05-20 2012-06-26 Osum Oil Sands Corp. Method of managing carbon reduction for hydrocarbon producers
US8230929B2 (en) 2008-05-23 2012-07-31 Exxonmobil Upstream Research Company Methods of producing hydrocarbons for substantially constant composition gas generation
US20090308608A1 (en) * 2008-05-23 2009-12-17 Kaminsky Robert D Field Managment For Substantially Constant Composition Gas Generation
US8281861B2 (en) 2008-10-13 2012-10-09 Shell Oil Company Circulated heated transfer fluid heating of subsurface hydrocarbon formations
US8220539B2 (en) 2008-10-13 2012-07-17 Shell Oil Company Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation
US8256512B2 (en) 2008-10-13 2012-09-04 Shell Oil Company Movable heaters for treating subsurface hydrocarbon containing formations
US20100147521A1 (en) * 2008-10-13 2010-06-17 Xueying Xie Perforated electrical conductors for treating subsurface formations
US8261832B2 (en) 2008-10-13 2012-09-11 Shell Oil Company Heating subsurface formations with fluids
US9129728B2 (en) 2008-10-13 2015-09-08 Shell Oil Company Systems and methods of forming subsurface wellbores
US8353347B2 (en) 2008-10-13 2013-01-15 Shell Oil Company Deployment of insulated conductors for treating subsurface formations
US9051829B2 (en) 2008-10-13 2015-06-09 Shell Oil Company Perforated electrical conductors for treating subsurface formations
US9022118B2 (en) 2008-10-13 2015-05-05 Shell Oil Company Double insulated heaters for treating subsurface formations
US8881806B2 (en) 2008-10-13 2014-11-11 Shell Oil Company Systems and methods for treating a subsurface formation with electrical conductors
US8267185B2 (en) 2008-10-13 2012-09-18 Shell Oil Company Circulated heated transfer fluid systems used to treat a subsurface formation
US8267170B2 (en) 2008-10-13 2012-09-18 Shell Oil Company Offset barrier wells in subsurface formations
US8616279B2 (en) 2009-02-23 2013-12-31 Exxonmobil Upstream Research Company Water treatment following shale oil production by in situ heating
US8851170B2 (en) 2009-04-10 2014-10-07 Shell Oil Company Heater assisted fluid treatment of a subsurface formation
US8327932B2 (en) 2009-04-10 2012-12-11 Shell Oil Company Recovering energy from a subsurface formation
US8434555B2 (en) 2009-04-10 2013-05-07 Shell Oil Company Irregular pattern treatment of a subsurface formation
US8448707B2 (en) 2009-04-10 2013-05-28 Shell Oil Company Non-conducting heater casings
US8540020B2 (en) 2009-05-05 2013-09-24 Exxonmobil Upstream Research Company Converting organic matter from a subterranean formation into producible hydrocarbons by controlling production operations based on availability of one or more production resources
US8863839B2 (en) 2009-12-17 2014-10-21 Exxonmobil Upstream Research Company Enhanced convection for in situ pyrolysis of organic-rich rock formations
US9033042B2 (en) 2010-04-09 2015-05-19 Shell Oil Company Forming bitumen barriers in subsurface hydrocarbon formations
US9399905B2 (en) 2010-04-09 2016-07-26 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US8739874B2 (en) 2010-04-09 2014-06-03 Shell Oil Company Methods for heating with slots in hydrocarbon formations
US8833453B2 (en) 2010-04-09 2014-09-16 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with tapered copper thickness
US8701769B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations based on geology
US8701768B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations
US8631866B2 (en) 2010-04-09 2014-01-21 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US9127523B2 (en) 2010-04-09 2015-09-08 Shell Oil Company Barrier methods for use in subsurface hydrocarbon formations
US9127538B2 (en) 2010-04-09 2015-09-08 Shell Oil Company Methodologies for treatment of hydrocarbon formations using staged pyrolyzation
US8820406B2 (en) 2010-04-09 2014-09-02 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore
US9022109B2 (en) 2010-04-09 2015-05-05 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US8622127B2 (en) 2010-08-30 2014-01-07 Exxonmobil Upstream Research Company Olefin reduction for in situ pyrolysis oil generation
US8616280B2 (en) 2010-08-30 2013-12-31 Exxonmobil Upstream Research Company Wellbore mechanical integrity for in situ pyrolysis
US9033033B2 (en) 2010-12-21 2015-05-19 Chevron U.S.A. Inc. Electrokinetic enhanced hydrocarbon recovery from oil shale
US9133398B2 (en) 2010-12-22 2015-09-15 Chevron U.S.A. Inc. In-situ kerogen conversion and recycling
US8839860B2 (en) 2010-12-22 2014-09-23 Chevron U.S.A. Inc. In-situ Kerogen conversion and product isolation
US8997869B2 (en) 2010-12-22 2015-04-07 Chevron U.S.A. Inc. In-situ kerogen conversion and product upgrading
US8936089B2 (en) 2010-12-22 2015-01-20 Chevron U.S.A. Inc. In-situ kerogen conversion and recovery
US9016370B2 (en) 2011-04-08 2015-04-28 Shell Oil Company Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment
US9309755B2 (en) 2011-10-07 2016-04-12 Shell Oil Company Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations
US9080441B2 (en) 2011-11-04 2015-07-14 Exxonmobil Upstream Research Company Multiple electrical connections to optimize heating for in situ pyrolysis
US9181467B2 (en) 2011-12-22 2015-11-10 Uchicago Argonne, Llc Preparation and use of nano-catalysts for in-situ reaction with kerogen
US8701788B2 (en) 2011-12-22 2014-04-22 Chevron U.S.A. Inc. Preconditioning a subsurface shale formation by removing extractible organics
US8851177B2 (en) 2011-12-22 2014-10-07 Chevron U.S.A. Inc. In-situ kerogen conversion and oxidant regeneration
US8770284B2 (en) 2012-05-04 2014-07-08 Exxonmobil Upstream Research Company Systems and methods of detecting an intersection between a wellbore and a subterranean structure that includes a marker material
US8992771B2 (en) 2012-05-25 2015-03-31 Chevron U.S.A. Inc. Isolating lubricating oils from subsurface shale formations
US9512699B2 (en) 2013-10-22 2016-12-06 Exxonmobil Upstream Research Company Systems and methods for regulating an in situ pyrolysis process
US9394772B2 (en) 2013-11-07 2016-07-19 Exxonmobil Upstream Research Company Systems and methods for in situ resistive heating of organic matter in a subterranean formation
US9739122B2 (en) 2014-11-21 2017-08-22 Exxonmobil Upstream Research Company Mitigating the effects of subsurface shunts during bulk heating of a subsurface formation
US9644466B2 (en) 2014-11-21 2017-05-09 Exxonmobil Upstream Research Company Method of recovering hydrocarbons within a subsurface formation using electric current

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