Situ thermal processing of a coal formation using pressure and/or temperature control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 13, 2005
Grant Date -
Apr 25, 2002
app pub date -
Apr 24, 2001
filing date -
Apr 24, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
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Abstract
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Pressure within the formation may be controlled as a function of temperature or temperature within the formation may be controlled as a function of pressure to yield a desired mixture.
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First Claim
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International Classification(s)
Cited Art Landscape
| Patent Info | (Count) | # Cites | Year |
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| 4375302 Process for the in situ recovery of both petroleum and inorganic mineral content of an oil shale deposit | 121 | 1980 | |
| 4306621 Method for in situ coal gasification operations | 288 | 1980 | |
| 4423311 Electric heating apparatus for de-icing pipes | 294 | 1981 | |
| 4444255 Apparatus and process for the recovery of oil | 283 | 1981 | |
| 4344483 Multiple-site underground magnetic heating of hydrocarbons | 313 | 1981 | |
| 4444258 In situ recovery of oil from oil shale | 301 | 1981 | |
| 4479541 Method and apparatus for recovery of oil, gas and mineral deposits by panel opening | 276 | 1982 | |
| 4762425 System for temperature profile measurement in large furnances and kilns and method therefor | 292 | 1987 | |
| 4883582 Vis-breaking heavy crude oils for pumpability | 109 | 1988 | |
| 4895206 Pulsed in situ exothermic shock wave and retorting process for hydrocarbon recovery and detoxification of selected wastes | 306 | 1989 | |
| 5027896 Method for in-situ recovery of energy raw material by the introduction of a water/oxygen slurry | 196 | 1990 | |
| 5082054 In-situ tuned microwave oil extraction process | 425 | 1990 | |
| 5217076 Method and apparatus for improved recovery of oil from porous, subsurface deposits (targevcir oricess) | 407 | 1991 | |
| 5624188 Acoustic thermometer | 298 | 1994 | |
| 6112808 Method and apparatus for subterranean thermal conditioning | 293 | 1997 | |
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| 4931171 Pyrolysis of carbonaceous materials | 148 | 1982 | |
| 4885080 Process for demetallizing and desulfurizing heavy crude oil | 224 | 1988 | |
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| 2004/0118,056 Wedge-lock building blocks | 2 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 2 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 2 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 2 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 2 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 2 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 2 | 2002 | |
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| 5055180 Method and apparatus for recovering fractions from hydrocarbon materials, facilitating the removal and cleansing of hydrocarbon fluids, insulating storage vessels, and cleansing storage vessels and pipelines | 175 | 1991 | |
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| 4848924 Acoustic pyrometer | 301 | 1987 | |
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| 4456065 Heavy oil recovering | 341 | 1981 | |
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| 4608818 Medium-load power-generating plant with integrated coal gasification plant | 286 | 1984 | |
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| 4984594 Vacuum method for removing soil contamination utilizing surface electrical heating | 359 | 1989 | |
| 5190405 Vacuum method for removing soil contaminants utilizing thermal conduction heating | 326 | 1990 | |
| 5229583 Surface heating blanket for soil remediation | 312 | 1992 | |
| 5318116 Vacuum method for removing soil contaminants utilizing thermal conduction heating | 331 | 1993 | |
| 5553189 Radiant plate heater for treatment of contaminated surfaces | 307 | 1994 | |
| 5656239 Method for recovering contaminants from soil utilizing electrical heating | 311 | 1995 | |
| 6102622 Remediation method | 306 | 1998 | |
| 5997214 Remediation method | 304 | 1998 | |
| 6485232 Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system | 289 | 2000 | |
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| 4324292 Process for recovering products from oil shale | 294 | 1980 | |
| 4396062 Apparatus and method for time-domain tracking of high-speed chemical reactions | 350 | 1980 | |
| 4409090 Process for recovering products from tar sand | 299 | 1982 | |
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| 5985138 Tar sands extraction process | 304 | 1998 | |
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| 6467543 System and process for secondary hydrocarbon recovery | 216 | 2000 | |
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| 4524826 Method of heating an oil shale formation | 309 | 1982 | |
| 4592423 Hydrocarbon stratum retorting means and method | 282 | 1984 | |
| 4576231 Method and apparatus for combating encroachment by in situ treated formations | 303 | 1984 | |
| 4682652 Producing hydrocarbons through successively perforated intervals of a horizontal well between two vertical wells | 294 | 1986 | |
| 5632336 Method for improving injectivity of fluids in oil reservoirs | 289 | 1994 | |
| 2002/0004,533 Integration of shift reactors and hydrotreaters | 95 | 2001 | |
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| 4319635 Method for enhanced oil recovery by geopressured waterflood | 117 | 1980 | |
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| 4793656 In-situ coal drying | 138 | 1987 | |
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| RE30738 Apparatus and method for in situ heat processing of hydrocarbonaceous formations | 356 | 1980 | |
| 4498535 Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations with a controlled parameter line | 280 | 1982 | |
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| 5525322 Method for simultaneous recovery of hydrogen from water and from hydrocarbons | 341 | 1994 | |
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| 4817711 System for recovery of petroleum from petroleum impregnated media | 382 | 1987 | |
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| 4285547 Integrated in situ shale oil and mineral recovery process | 106 | 1980 | |
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| 4860544 Closed cryogenic barrier for containment of hazardous material migration in the earth | 329 | 1988 | |
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| 5437506 System for measuring the transfer time of a sound-wave in a gas and thereby calculating the temperature of the gas | 283 | 1993 | |
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| 4448251 In situ conversion of hydrocarbonaceous oil | 207 | 1982 | |
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| 5491969 Power plant utilizing compressed air energy storage and saturation | 322 | 1995 | |
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| 4485869 Recovery of liquid hydrocarbons from oil shale by electromagnetic heating in situ | 383 | 1982 | |
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| 6244338 System for improving coalbed gas production | 154 | 1999 | |
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| 5041210 Oil shale retorting with steam and produced gas | 105 | 1989 | |
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| 4994093 Method of producing methanol synthesis gas | 283 | 1990 | |
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| 4818370 Process for converting heavy crudes, tars, and bitumens to lighter products in the presence of brine at supercritical conditions | 325 | 1987 | |
| 4983319 Preparation of low-viscosity improved stable crude oil transport emulsions | 295 | 1988 | |
| 5340467 Process for recovery of hydrocarbons and rejection of sand | 341 | 1991 | |
| 5316664 Process for recovery of hydrocarbons and rejection of sand | 334 | 1992 | |
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| 5955039 Coal gasification and hydrogen production system and method | 271 | 1996 | |
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| 5182792 Process of electric pipeline heating utilizing heating elements inserted in pipelines | 285 | 1991 | |
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| 4737267 Oil shale processing apparatus and method | 157 | 1986 | |
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| 4549396 Conversion of coal to electricity | 288 | 1982 | |
| 4476927 Method for controlling H.sub.2 /CO ratio of in-situ coal gasification product gas | 143 | 1982 | |
| 4530401 Method for maximum in-situ visbreaking of heavy oil | 282 | 1982 | |
| 4573530 In-situ gasification of tar sands utilizing a combustible gas | 281 | 1983 | |
| 4698149 Enhanced recovery of hydrocarbonaceous fluids oil shale | 217 | 1983 | |
| 4598772 Method for operating a production well in an oxygen driven in-situ combustion oil recovery process | 209 | 1983 | |
| 4598770 Thermal recovery method for viscous oil | 317 | 1984 | |
| 4669542 Simultaneous recovery of crude from multiple zones in a reservoir | 283 | 1984 | |
| 4766958 Method of recovering viscous oil from reservoirs with multiple horizontal zones | 196 | 1987 | |
| 4787452 Disposal of produced formation fines during oil recovery | 294 | 1987 | |
| 4982786 Use of CO.sub.2 /steam to enhance floods in horizontal wellbores | 277 | 1989 | |
| 5211230 Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion | 315 | 1992 | |
| 5339904 Oil recovery optimization using a well having both horizontal and vertical sections | 279 | 1992 | |
| 5377756 Method for producing low permeability reservoirs using a single well | 250 | 1993 | |
| 5411086 Oil recovery by enhanced imbitition in low permeability reservoirs | 196 | 1993 | |
| 5415231 Method for producing low permeability reservoirs using steam | 288 | 1994 | |
| 5431224 Method of thermal stimulation for recovery of hydrocarbons | 298 | 1994 | |
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| 2003/0029,617 Apparatus, method and system for single well solution-mining | 196 | 2001 | |
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| 5891829 Process for the downhole upgrading of extra heavy crude oil | 61 | 1997 | |
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| 4716960 Method and system for introducing electric current into a well | 365 | 1986 | |
| 5207273 Method and apparatus for pumping wells | 336 | 1990 | |
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| 4513816 Sealing system for a well bore in which a hot fluid is circulated | 279 | 1984 | |
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| 6499536 Method to increase the oil production from an oil reservoir | 251 | 2000 | |
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| 4776638 Method and apparatus for conversion of coal in situ | 352 | 1987 | |
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| 4378048 Substoichiometric combustion of low heating value gases using different platinum catalysts | 281 | 1981 | |
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| 6354373 Expandable tubing for a well bore hole and method of expanding | 425 | 1998 | |
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| 4662438 Method and apparatus for enhancing liquid hydrocarbon production from a single borehole in a slowly producing formation by non-uniform heating through optimized electrode arrays surrounding the borehole | 287 | 1985 | |
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| 5261490 Method for dumping and disposing of carbon dioxide gas and apparatus therefor | 297 | 1992 | |
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| 6187465 Process and system for converting carbonaceous feedstocks into energy without greenhouse gas emissions | 231 | 1998 | |
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| 6152987 Hydrogen gas-extraction module and method of fabrication | 335 | 1998 | |
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| 5349859 Method and apparatus for measuring acoustic wave velocity using impulse response | 287 | 1991 | |
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| 4439307 Heating process gas for indirect shale oil retorting through the combustion of residual carbon in oil depleted shale | 103 | 1983 | |
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| 5968349 Extraction of bitumen from bitumen froth and biotreatment of bitumen froth tailings generated from tar sands | 406 | 1998 | |
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| 5626191 Oilfield in-situ combustion process | 116 | 1995 | |
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| 4489782 Viscous oil production using electrical current heating and lateral drain holes | 312 | 1983 | |
| 4651825 Enhanced well production | 289 | 1986 | |
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| 4407973 Methanol from coal and natural gas | 287 | 1982 | |
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| 5767584 Method for generating electrical power from fuel cell powered cars parked in a conventional parking lot | 212 | 1995 | |
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| 4458757 In situ shale-oil recovery process | 285 | 1983 | |
| 6110358 Process for manufacturing improved process oils using extraction of hydrotreated distillates | 206 | 1999 | |
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| 2002/0112,987 Slurry hydroprocessing for heavy oil upgrading using supported slurry catalysts | 242 | 2000 | |
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| 6412559 Process for recovering methane and/or sequestering fluids | 347 | 2000 | |
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| 4694907 Thermally-enhanced oil recovery method and apparatus | 353 | 1986 | |
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| 5064006 Downhole combination tool | 331 | 1988 | |
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| 5201219 Method and apparatus for measuring free hydrocarbons and hydrocarbons potential from whole core | 266 | 1990 | |
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| 5539853 Downhole heating system with separate wiring cooling and heating chambers and gas flow therethrough | 83 | 1995 | |
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| 4856587 Recovery of oil from oil-bearing formation by continually flowing pressurized heated gas through channel alongside matrix | 298 | 1988 | |
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| 5085276 Production of oil from low permeability formations by sequential steam fracturing | 239 | 1990 | |
| 5305829 Oil production from diatomite formations by fracture steamdrive | 235 | 1992 | |
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| 5126037 Geopreater heating method and apparatus | 304 | 1990 | |
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| 4412585 Electrothermal process for recovering hydrocarbons | 302 | 1982 | |
| 4415034 Electrode well completion | 128 | 1982 | |
| 4501445 Method of in-situ hydrogenation of carbonaceous material | 294 | 1983 | |
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| 4772634 Apparatus and method for methanol production using a fuel cell to regulate the gas composition entering the methanol synthesizer | 305 | 1986 | |
| 5554453 Carbonate fuel cell system with thermally integrated gasification | 337 | 1995 | |
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| 5868202 Hydrologic cells for recovery of hydrocarbons or thermal energy from coal, oil-shale, tar-sands and oil-bearing formations | 384 | 1997 | |
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| 4974425 Closed cryogenic barrier for containment of hazardous material migration in the earth | 327 | 1989 | |
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| 4353418 In situ retorting of oil shale | 310 | 1980 | |
| 4537252 Method of underground conversion of coal | 285 | 1984 | |
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| 4418752 Thermal oil recovery with solvent recirculation | 208 | 1982 | |
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| 4457365 In situ radio frequency selective heating system | 352 | 1981 | |
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| 4457374 Transient response process for detecting in situ retorting conditions | 271 | 1982 | |
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| 4384613 Method of in-situ retorting of carbonaceous material for recovery of organic liquids and gases | 299 | 1980 | |
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| 5411104 Coalbed methane drilling | 354 | 1994 | |
| 5402847 Coal bed methane recovery | 200 | 1994 | |
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| 4501326 In-situ recovery of viscous hydrocarbonaceous crude oil | 280 | 1983 | |
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| 5099918 Power sources for downhole electrical heating | 312 | 1991 | |
| 5621844 Electrical heating of mineral well deposits using downhole impedance transformation networks | 375 | 1995 | |
| 5713415 Low flux leakage cables and cable terminations for A.C. electrical heating of oil deposits | 319 | 1996 | |
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| 6353706 Optimum oil-well casing heating | 233 | 2000 | |
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| 4524827 Single well stimulation for the recovery of liquid hydrocarbons from subsurface formations | 349 | 1983 | |
| 5751895 Selective excitation of heating electrodes for oil wells | 288 | 1996 | |
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| 6015015 Insulated and/or concentric coiled tubing | 402 | 1997 | |
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| 4384948 Single unit RCC | 121 | 1981 | |
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| 6172124 Process for converting gas to liquids | 290 | 1997 | |
| 6085512 Synthesis gas production system and method | 295 | 1999 | |
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| 4662439 Method of underground conversion of coal | 282 | 1985 | |
| 4662443 Combination air-blown and oxygen-blown underground coal gasification process | 285 | 1985 | |
| 5059303 Oil stabilization | 226 | 1989 | |
| 5014788 Method of increasing the permeability of a coal seam | 177 | 1990 | |
| 5388640 Method for producing methane-containing gaseous mixtures | 290 | 1993 | |
| 5388641 Method for reducing the inert gas fraction in methane-containing gaseous mixtures obtained from underground formations | 286 | 1993 | |
| 5388642 Coalbed methane recovery using membrane separation of oxygen from air | 286 | 1993 | |
| 5388643 Coalbed methane recovery using pressure swing adsorption separation | 285 | 1993 | |
| 5388645 Method for producing methane-containing gaseous mixtures | 304 | 1993 | |
| 5439054 Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation | 295 | 1994 | |
| 5454666 Method for disposing of unwanted gaseous fluid components within a solid carbonaceous subterranean formation | 295 | 1994 | |
| 5566756 Method for recovering methane from a solid carbonaceous subterranean formation | 253 | 1995 | |
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| 4605489 Upgrading shale oil by a combination process | 220 | 1985 | |
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| 5289882 Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas | 325 | 1991 | |
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| 4299285 Underground gasification of bituminous coal | 279 | 1980 | |
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| 4397732 Process for coal liquefaction employing selective coal feed | 278 | 1982 | |
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| 4412124 Electrode unit for electrically heating underground hydrocarbon deposits | 282 | 1981 | |
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| 4597441 Recovery of oil by in situ hydrogenation | 333 | 1984 | |
| 4691771 Recovery of oil by in-situ combustion followed by in-situ hydrogenation | 303 | 1986 | |
| 6016867 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking | 338 | 1998 | |
| 6016868 Production of synthetic crude oil from heavy hydrocarbons recovered by in situ hydrovisbreaking | 340 | 1998 | |
| 6328104 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking | 340 | 2000 | |
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| 4524113 Direct use of methanol fuel in a molten carbonate fuel cell | 139 | 1984 | |
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| 5456315 Horizontal well gravity drainage combustion process for oil recovery | 237 | 1994 | |
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| 4390067 Method of treating reservoirs containing very viscous crude oil or bitumen | 397 | 1981 | |
| 4483398 In-situ retorting of oil shale | 125 | 1983 | |
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| 5008085 Apparatus for thermal treatment of a hydrocarbon stream | 293 | 1989 | |
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| 5676212 Downhole electrode for well guidance system | 171 | 1996 | |
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| 6389814 Hydrocarbon combustion power generation system with CO2 sequestration | 262 | 2000 | |
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| 4508170 Method of increasing the yield of hydrocarbons from a subterranean formation | 162 | 1983 | |
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| 5050386 Method and apparatus for containment of hazardous material migration in the earth | 324 | 1990 | |
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| 5339897 Recovery and upgrading of hydrocarbon utilizing in situ combustion and horizontal wells | 352 | 1992 | |
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| 5229102 Catalytic ceramic membrane steam-hydrocarbon reformer | 244 | 1990 | |
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| 4463807 Minimizing subsidence effects during production of coal in situ | 142 | 1983 | |
| 4448252 Minimizing subsidence effects during production of coal in situ | 140 | 1983 | |
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| 5020596 Enhanced oil recovery system with a radiant tube heater | 288 | 1990 | |
| 5082055 Gas fired radiant tube heater | 308 | 1991 | |
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| 5517593 Control system for well stimulation apparatus with response time temperature rise used in determining heater control temperature setpoint | 305 | 1995 | |
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| 2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same | 0 | 2001 | |
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| 4623444 Upgrading shale oil by a combination process | 217 | 1985 | |
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| 5285846 Thermal mineral extraction system | 292 | 1992 | |
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| 5984010 Hydrocarbon recovery systems and methods | 289 | 1997 | |
| 6173775 Systems and methods for hydrocarbon recovery | 285 | 1999 | |
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| 5861137 Steam reformer with internal hydrogen purification | 503 | 1996 | |
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| 4637464 In situ retorting of oil shale with pulsed water purge | 312 | 1984 | |
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| 4927857 Method of methanol production | 319 | 1989 | |
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| 4683947 Process and apparatus for monitoring and controlling the flammability of gas from an in-situ combustion oil recovery project | 73 | 1985 | |
| 4734115 Low pressure process for C.sub.3.sup.+ liquids recovery from process product gas | 211 | 1986 | |
| 5284878 Liquid phase methanol process with co-rich recycle | 147 | 1993 | |
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| 5325918 Optimal joule heating of the subsurface | 122 | 1993 | |
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| 4359687 Method and apparatus for determining shaliness and oil saturations in earth formations using induced polarization in the frequency domain | 294 | 1980 | |
| 4398151 Method for correcting an electrical log for the presence of shale in a formation | 282 | 1982 | |
| 4583046 Apparatus for focused electrode induced polarization logging | 286 | 1983 | |
| 4540882 Method of determining drilling fluid invasion | 296 | 1983 | |
| 4542648 Method of correlating a core sample with its original position in a borehole | 298 | 1983 | |
| 4571491 Method of imaging the atomic number of a sample | 313 | 1983 | |
| 4583242 Apparatus for positioning a sample in a computerized axial tomographic scanner | 288 | 1983 | |
| 4613754 Tomographic calibration apparatus | 304 | 1983 | |
| 4635197 High resolution tomographic imaging method | 281 | 1983 | |
| 4644283 In-situ method for determining pore size distribution, capillary pressure and permeability | 294 | 1984 | |
| 4570715 Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature | 358 | 1984 | |
| 4663711 Method of analyzing fluid saturation using computerized axial tomography | 280 | 1984 | |
| 4572299 Heater cable installation | 323 | 1984 | |
| 4585066 Well treating process for installing a cable bundle containing strands of changing diameter | 297 | 1984 | |
| 4704514 Heating rate variant elongated electrical resistance heater | 350 | 1985 | |
| 4671102 Method and apparatus for determining distribution of fluids | 306 | 1985 | |
| 4626665 Metal oversheathed electrical resistance heater | 335 | 1985 | |
| 4719423 NMR imaging of materials for transport properties | 309 | 1985 | |
| 4728892 NMR imaging of materials | 340 | 1985 | |
| 4640352 In-situ steam drive oil recovery process | 337 | 1985 | |
| 4594468 Process for the preparation of middle distillates from syngas | 149 | 1985 | |
| 4730162 Time-domain induced polarization logging method and apparatus with gated amplification level | 279 | 1985 | |
| 4658215 Method for induced polarization logging | 285 | 1986 | |
| 4616705 Mini-well temperature profiling process | 305 | 1986 | |
| 4769602 Determining multiphase saturations by NMR imaging of multiple nuclides | 304 | 1986 | |
| 4769606 Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations | 285 | 1986 | |
| 4743854 In-situ induced polarization method for determining formation permeability | 281 | 1986 | |
| 4827761 Sample holder | 301 | 1987 | |
| 4856341 Apparatus for analysis of failure of material | 288 | 1987 | |
| 5306640 Method for determining preselected properties of a crude oil | 286 | 1987 | |
| 4886118 Conductively heating a subterranean oil shale to create permeability and subsequently produce oil | 410 | 1988 | |
| 4866983 Analytical methods and apparatus for measuring the oil content of sponge core | 283 | 1988 | |
| 4884455 Method for analysis of failure of material employing imaging | 285 | 1989 | |
| 4987368 Nuclear magnetism logging tool using high-temperature superconducting squid detectors | 308 | 1989 | |
| 5046559 Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers | 345 | 1990 | |
| 5060726 Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication | 307 | 1990 | |
| 5060287 Heater utilizing copper-nickel alloy core | 340 | 1990 | |
| 5065818 Subterranean heaters | 333 | 1991 | |
| 5189283 Current to power crossover heater control | 303 | 1991 | |
| 5168927 Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation | 287 | 1991 | |
| 5226961 High temperature wellbore cement slurry | 318 | 1992 | |
| 5255742 Heat injection process | 365 | 1992 | |
| 5297626 Oil recovery process | 342 | 1992 | |
| 5236039 Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale | 389 | 1992 | |
| 5366012 Method of completing an uncased section of a borehole | 562 | 1993 | |
| 5391291 Hydrogenation catalyst and process | 297 | 1993 | |
| 5392854 Oil recovery process | 336 | 1993 | |
| 5404952 Heat injection process and apparatus | 319 | 1993 | |
| 5411089 Heat injection process | 315 | 1993 | |
| 5433271 Heat injection process | 304 | 1993 | |
| 5409071 Method to cement a wellbore | 293 | 1994 | |
| 5497087 NMR logging of natural gas reservoirs | 321 | 1994 | |
| 5498960 NMR logging of natural gas in reservoirs | 338 | 1994 | |
| 5541517 Method for drilling a borehole from one cased borehole to another cased borehole | 305 | 1995 | |
| RE35696 Heat injection process | 200 | 1995 | |
| 5862858 Flameless combustor | 342 | 1996 | |
| 5899269 Flameless combustor | 342 | 1996 | |
| 6056057 Heater well method and apparatus | 360 | 1997 | |
| 6079499 Heater well method and apparatus | 352 | 1997 | |
| 6094048 NMR logging of natural gas reservoirs | 287 | 1997 | |
| 6023554 Electrical heater | 350 | 1998 | |
| 6102122 Control of heat injection based on temperature and in-situ stress measurement | 314 | 1998 | |
| 6019172 Flameless combustor | 328 | 1999 | |
| 6581684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids | 291 | 2001 | |
| 6588503 In Situ thermal processing of a coal formation to control product composition | 242 | 2001 | |
| 6588504 In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids | 248 | 2001 | |
| 6591906 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content | 273 | 2001 | |
| 6591907 In situ thermal processing of a coal formation with a selected vitrinite reflectance | 240 | 2001 | |
| 6607033 In Situ thermal processing of a coal formation to produce a condensate | 236 | 2001 | |
| 6609570 In situ thermal processing of a coal formation and ammonia production | 236 | 2001 | |
| 6688387 In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate | 275 | 2001 | |
| 6698515 In situ thermal processing of a coal formation using a relatively slow heating rate | 238 | 2001 | |
| 6702016 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer | 253 | 2001 | |
| 6708758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas | 240 | 2001 | |
| 6712135 In situ thermal processing of a coal formation in reducing environment | 235 | 2001 | |
| 6712136 In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing | 302 | 2001 | |
| 6712137 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material | 234 | 2001 | |
| 6715546 In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore | 266 | 2001 | |
| 6715547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation | 239 | 2001 | |
| 6715548 In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids | 239 | 2001 | |
| 6715549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio | 195 | 2001 | |
| 6719047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment | 248 | 2001 | |
| 6722429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas | 264 | 2001 | |
| 6722430 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio | 235 | 2001 | |
| 6722431 In situ thermal processing of hydrocarbons within a relatively permeable formation | 265 | 2001 | |
| 6725920 In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products | 241 | 2001 | |
| 6725921 In situ thermal processing of a coal formation by controlling a pressure of the formation | 160 | 2001 | |
| 6725928 In situ thermal processing of a coal formation using a distributed combustor | 235 | 2001 | |
| 6729395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells | 250 | 2001 | |
| 6729396 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range | 233 | 2001 | |
| 6729397 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance | 239 | 2001 | |
| 6729401 In situ thermal processing of a hydrocarbon containing formation and ammonia production | 239 | 2001 | |
| 6732794 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content | 240 | 2001 | |
| 6732796 In situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio | 263 | 2001 | |
| 6736215 In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration | 245 | 2001 | |
| 6739393 In situ thermal processing of a coal formation and tuning production | 234 | 2001 | |
| 6739394 Production of synthesis gas from a hydrocarbon containing formation | 242 | 2001 | |
| 6742587 In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation | 234 | 2001 | |
| 6742588 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content | 273 | 2001 | |
| 6742589 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources | 233 | 2001 | |
| 6742593 In situ thermal processing of a hydrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation | 241 | 2001 | |
| 6745831 In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation | 266 | 2001 | |
| 6745837 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate | 249 | 2001 | |
| 6749021 In situ thermal processing of a coal formation using a controlled heating rate | 237 | 2001 | |
| 6752210 In situ thermal processing of a coal formation using heat sources positioned within open wellbores | 263 | 2001 | |
| 6758268 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate | 239 | 2001 | |
| 6761216 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas | 235 | 2001 | |
| 6763886 In situ thermal processing of a coal formation with carbon dioxide sequestration | 217 | 2001 | |
| 6769483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources | 250 | 2001 | |
| 6769485 In situ production of synthesis gas from a coal formation through a heat source wellbore | 238 | 2001 | |
| 6789625 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources | 239 | 2001 | |
| 6805195 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas | 227 | 2001 | |
| 6820688 In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio | 217 | 2001 | |
| 6866097 In situ thermal processing of a coal formation to increase a permeability/porosity of the formation | 200 | 2001 | |
| 2004/0015,023 IN SITU THERMAL PROCESSING OF A HYDROCARBON CONTAINING FORMATION TO PRODUCE A HYDROCARBON CONDENSATE | 80 | 2001 | |
| 6782947 In situ thermal processing of a relatively impermeable formation to increase permeability of the formation | 299 | 2002 | |
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| 4303126 Arrangement of wells for producing subsurface viscous petroleum | 202 | 1980 | |
| 4273188 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations | 284 | 1980 | |
| 4381641 Substoichiometric combustion of low heating value gases | 319 | 1980 | |
| 4366668 Substoichiometric combustion of low heating value gases | 299 | 1981 | |
| 4363361 Substoichiometric combustion of low heating value gases | 292 | 1981 | |
| 4460044 Advancing heated annulus steam drive | 212 | 1982 | |
| 4544478 Process for pyrolyzing hydrocarbonaceous solids to recover volatile hydrocarbons | 106 | 1984 | |
| 4696345 Hasdrive with multiple offset producers | 171 | 1986 | |
| 4828031 In situ chemical stimulation of diatomite formations | 233 | 1987 | |
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| 4928765 Method and apparatus for shale gas recovery | 306 | 1988 | |
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| 4605680 Conversion of synthesis gas to diesel fuel and gasoline | 289 | 1985 | |
* Cited By Examiner
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