US Patent No: 6,973,967
Number of patents in Portfolio can not be more than 2000
Situ thermal processing of a coal formation using pressure and/or temperature control
ALSO PUBLISHED AS:
20020046883
Stats
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Dec 13, 2005
Issued date -
Apr 24, 2001
filing date -
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09/841,430
serial no -
In Force
status (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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| 4,375,302 Process for the in situ recovery of both petroleum and inorganic mineral content of an oil shale deposit | 115 | 1980 | |
| 4,306,621 Method for in situ coal gasification operations | 275 | 1980 | |
| 4,423,311 Electric heating apparatus for de-icing pipes | 277 | 1981 | |
| 4,444,255 Apparatus and process for the recovery of oil | 271 | 1981 | |
| 4,344,483 Multiple-site underground magnetic heating of hydrocarbons | 285 | 1981 | |
| 4,444,258 In situ recovery of oil from oil shale | 284 | 1981 | |
| 4,479,541 Method and apparatus for recovery of oil, gas and mineral deposits by panel opening | 257 | 1982 | |
| 4,762,425 System for temperature profile measurement in large furnances and kilns and method therefor | 279 | 1987 | |
| 4,883,582 Vis-breaking heavy crude oils for pumpability | 98 | 1988 | |
| 4,895,206 Pulsed in situ exothermic shock wave and retorting process for hydrocarbon recovery and detoxification of selected wastes | 281 | 1989 | |
| 5,027,896 Method for in-situ recovery of energy raw material by the introduction of a water/oxygen slurry | 182 | 1990 | |
| 5,082,054 In-situ tuned microwave oil extraction process | 384 | 1990 | |
| 5,217,076 Method and apparatus for improved recovery of oil from porous, subsurface deposits (targevcir oricess) | 385 | 1991 | |
| 5,624,188 Acoustic thermometer | 279 | 1994 | |
| 6,112,808 Method and apparatus for subterranean thermal conditioning | 267 | 1997 | |
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| 4,931,171 Pyrolysis of carbonaceous materials | 124 | 1982 | |
| 4,885,080 Process for demetallizing and desulfurizing heavy crude oil | 208 | 1988 | |
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| 2004/0118,056 Wedge-lock building blocks | 1 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 1 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 1 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 1 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 1 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 1 | 2002 | |
| 2004/0118,056 Wedge-lock building blocks | 1 | 2002 | |
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| 5,055,180 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 | 150 | 1991 | |
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| 4,848,924 Acoustic pyrometer | 282 | 1987 | |
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| 4,456,065 Heavy oil recovering | 315 | 1981 | |
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| 4,608,818 Medium-load power-generating plant with integrated coal gasification plant | 274 | 1984 | |
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| 4,984,594 Vacuum method for removing soil contamination utilizing surface electrical heating | 335 | 1989 | |
| 5,190,405 Vacuum method for removing soil contaminants utilizing thermal conduction heating | 310 | 1990 | |
| 5,229,583 Surface heating blanket for soil remediation | 297 | 1992 | |
| 5,318,116 Vacuum method for removing soil contaminants utilizing thermal conduction heating | 315 | 1993 | |
| 5,553,189 Radiant plate heater for treatment of contaminated surfaces | 292 | 1994 | |
| 5,656,239 Method for recovering contaminants from soil utilizing electrical heating | 295 | 1995 | |
| 6,102,622 Remediation method | 291 | 1998 | |
| 5,997,214 Remediation method | 289 | 1998 | |
| 6,485,232 Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system | 272 | 2000 | |
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| 4,324,292 Process for recovering products from oil shale | 275 | 1980 | |
| 4,396,062 Apparatus and method for time-domain tracking of high-speed chemical reactions | 319 | 1980 | |
| 4,409,090 Process for recovering products from tar sand | 285 | 1982 | |
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| 5,437,506 System for measuring the transfer time of a sound-wave in a gas and thereby calculating the temperature of the gas | 269 | 1993 | |
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| 5,985,138 Tar sands extraction process | 283 | 1998 | |
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| 6,467,543 System and process for secondary hydrocarbon recovery | 203 | 2000 | |
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| 4,524,826 Method of heating an oil shale formation | 290 | 1982 | |
| 4,592,423 Hydrocarbon stratum retorting means and method | 270 | 1984 | |
| 4,576,231 Method and apparatus for combating encroachment by in situ treated formations | 289 | 1984 | |
| 4,682,652 Producing hydrocarbons through successively perforated intervals of a horizontal well between two vertical wells | 277 | 1986 | |
| 5,632,336 Method for improving injectivity of fluids in oil reservoirs | 274 | 1994 | |
| 2002/0004,533 Integration of shift reactors and hydrotreaters | 93 | 2001 | |
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| 4,319,635 Method for enhanced oil recovery by geopressured waterflood | 107 | 1980 | |
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| 4,793,656 In-situ coal drying | 137 | 1987 | |
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| RE30738 Apparatus and method for in situ heat processing of hydrocarbonaceous formations | 327 | 1980 | |
| 4,498,535 Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations with a controlled parameter line | 267 | 1982 | |
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| 5,525,322 Method for simultaneous recovery of hydrogen from water and from hydrocarbons | 328 | 1994 | |
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| 4,817,711 System for recovery of petroleum from petroleum impregnated media | 351 | 1987 | |
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| 4,285,547 Integrated in situ shale oil and mineral recovery process | 95 | 1980 | |
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| 4,860,544 Closed cryogenic barrier for containment of hazardous material migration in the earth | 310 | 1988 | |
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| 5,491,969 Power plant utilizing compressed air energy storage and saturation | 298 | 1995 | |
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| 4,485,869 Recovery of liquid hydrocarbons from oil shale by electromagnetic heating in situ | 343 | 1982 | |
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| 6,244,338 System for improving coalbed gas production | 148 | 1999 | |
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| 5,041,210 Oil shale retorting with steam and produced gas | 93 | 1989 | |
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| 4,994,093 Method of producing methanol synthesis gas | 271 | 1990 | |
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| 4,818,370 Process for converting heavy crudes, tars, and bitumens to lighter products in the presence of brine at supercritical conditions | 303 | 1987 | |
| 4,983,319 Preparation of low-viscosity improved stable crude oil transport emulsions | 283 | 1988 | |
| 5,340,467 Process for recovery of hydrocarbons and rejection of sand | 319 | 1991 | |
| 5,316,664 Process for recovery of hydrocarbons and rejection of sand | 314 | 1992 | |
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| 5,955,039 Coal gasification and hydrogen production system and method | 242 | 1996 | |
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| 5,182,792 Process of electric pipeline heating utilizing heating elements inserted in pipelines | 266 | 1991 | |
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| 4,737,267 Oil shale processing apparatus and method | 145 | 1986 | |
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| 4,549,396 Conversion of coal to electricity | 276 | 1982 | |
| 4,476,927 Method for controlling H.sub.2 /CO ratio of in-situ coal gasification product gas | 143 | 1982 | |
| 4,530,401 Method for maximum in-situ visbreaking of heavy oil | 270 | 1982 | |
| 4,573,530 In-situ gasification of tar sands utilizing a combustible gas | 264 | 1983 | |
| 4,698,149 Enhanced recovery of hydrocarbonaceous fluids oil shale | 200 | 1983 | |
| 4,598,772 Method for operating a production well in an oxygen driven in-situ combustion oil recovery process | 197 | 1983 | |
| 4,598,770 Thermal recovery method for viscous oil | 303 | 1984 | |
| 4,669,542 Simultaneous recovery of crude from multiple zones in a reservoir | 271 | 1984 | |
| 4,766,958 Method of recovering viscous oil from reservoirs with multiple horizontal zones | 184 | 1987 | |
| 4,787,452 Disposal of produced formation fines during oil recovery | 282 | 1987 | |
| 4,982,786 Use of CO.sub.2 /steam to enhance floods in horizontal wellbores | 261 | 1989 | |
| 5,211,230 Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion | 293 | 1992 | |
| 5,339,904 Oil recovery optimization using a well having both horizontal and vertical sections | 266 | 1992 | |
| 5,377,756 Method for producing low permeability reservoirs using a single well | 228 | 1993 | |
| 5,411,086 Oil recovery by enhanced imbitition in low permeability reservoirs | 183 | 1993 | |
| 5,415,231 Method for producing low permeability reservoirs using steam | 274 | 1994 | |
| 5,431,224 Method of thermal stimulation for recovery of hydrocarbons | 284 | 1994 | |
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| 2003/0029,617 Apparatus, method and system for single well solution-mining | 178 | 2001 | |
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| 5,891,829 Process for the downhole upgrading of extra heavy crude oil | 55 | 1997 | |
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| 4,716,960 Method and system for introducing electric current into a well | 332 | 1986 | |
| 5,207,273 Method and apparatus for pumping wells | 304 | 1990 | |
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| 4,513,816 Sealing system for a well bore in which a hot fluid is circulated | 267 | 1984 | |
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| 6,499,536 Method to increase the oil production from an oil reservoir | 213 | 2000 | |
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| 4,776,638 Method and apparatus for conversion of coal in situ | 313 | 1987 | |
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| 4,378,048 Substoichiometric combustion of low heating value gases using different platinum catalysts | 269 | 1981 | |
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| 6,354,373 Expandable tubing for a well bore hole and method of expanding | 408 | 1998 | |
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| 4,662,438 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 | 275 | 1985 | |
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| 5,261,490 Method for dumping and disposing of carbon dioxide gas and apparatus therefor | 283 | 1992 | |
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| 6,187,465 Process and system for converting carbonaceous feedstocks into energy without greenhouse gas emissions | 215 | 1998 | |
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| 6,152,987 Hydrogen gas-extraction module and method of fabrication | 317 | 1998 | |
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| 5,349,859 Method and apparatus for measuring acoustic wave velocity using impulse response | 270 | 1991 | |
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| 4,439,307 Heating process gas for indirect shale oil retorting through the combustion of residual carbon in oil depleted shale | 92 | 1983 | |
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| 5,968,349 Extraction of bitumen from bitumen froth and biotreatment of bitumen froth tailings generated from tar sands | 331 | 1998 | |
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| 5,626,191 Oilfield in-situ combustion process | 112 | 1995 | |
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| 4,489,782 Viscous oil production using electrical current heating and lateral drain holes | 300 | 1983 | |
| 4,651,825 Enhanced well production | 276 | 1986 | |
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| 5,767,584 Method for generating electrical power from fuel cell powered cars parked in a conventional parking lot | 196 | 1995 | |
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| 4,458,757 In situ shale-oil recovery process | 267 | 1983 | |
| 6,110,358 Process for manufacturing improved process oils using extraction of hydrotreated distillates | 193 | 1999 | |
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| 2002/0112,987 Slurry hydroprocessing for heavy oil upgrading using supported slurry catalysts | 227 | 2000 | |
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| 6,412,559 Process for recovering methane and/or sequestering fluids | 277 | 2000 | |
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| 4,694,907 Thermally-enhanced oil recovery method and apparatus | 318 | 1986 | |
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| 5,064,006 Downhole combination tool | 305 | 1988 | |
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| 5,201,219 Method and apparatus for measuring free hydrocarbons and hydrocarbons potential from whole core | 254 | 1990 | |
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| 5,539,853 Downhole heating system with separate wiring cooling and heating chambers and gas flow therethrough | 74 | 1995 | |
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| 4,856,587 Recovery of oil from oil-bearing formation by continually flowing pressurized heated gas through channel alongside matrix | 277 | 1988 | |
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| 5,085,276 Production of oil from low permeability formations by sequential steam fracturing | 217 | 1990 | |
| 5,305,829 Oil production from diatomite formations by fracture steamdrive | 215 | 1992 | |
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| 5,126,037 Geopreater heating method and apparatus | 291 | 1990 | |
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| 4,412,585 Electrothermal process for recovering hydrocarbons | 284 | 1982 | |
| 4,415,034 Electrode well completion | 112 | 1982 | |
| 4,501,445 Method of in-situ hydrogenation of carbonaceous material | 280 | 1983 | |
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| 4,772,634 Apparatus and method for methanol production using a fuel cell to regulate the gas composition entering the methanol synthesizer | 270 | 1986 | |
| 5,554,453 Carbonate fuel cell system with thermally integrated gasification | 300 | 1995 | |
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| 5,868,202 Hydrologic cells for recovery of hydrocarbons or thermal energy from coal, oil-shale, tar-sands and oil-bearing formations | 361 | 1997 | |
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| 4,974,425 Closed cryogenic barrier for containment of hazardous material migration in the earth | 308 | 1989 | |
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| 4,418,752 Thermal oil recovery with solvent recirculation | 195 | 1982 | |
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| 4,457,365 In situ radio frequency selective heating system | 323 | 1981 | |
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| 4,384,613 Method of in-situ retorting of carbonaceous material for recovery of organic liquids and gases | 286 | 1980 | |
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| 4,353,418 In situ retorting of oil shale | 289 | 1980 | |
| 4,457,374 Transient response process for detecting in situ retorting conditions | 254 | 1982 | |
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| 4,448,251 In situ conversion of hydrocarbonaceous oil | 193 | 1982 | |
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| 5,411,104 Coalbed methane drilling | 339 | 1994 | |
| 5,402,847 Coal bed methane recovery | 151 | 1994 | |
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| 4,407,973 Methanol from coal and natural gas | 273 | 1982 | |
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| 4,501,326 In-situ recovery of viscous hydrocarbonaceous crude oil | 267 | 1983 | |
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| 5,099,918 Power sources for downhole electrical heating | 286 | 1991 | |
| 5,621,844 Electrical heating of mineral well deposits using downhole impedance transformation networks | 336 | 1995 | |
| 5,713,415 Low flux leakage cables and cable terminations for A.C. electrical heating of oil deposits | 293 | 1996 | |
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| 6,353,706 Optimum oil-well casing heating | 217 | 2000 | |
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| 4,524,827 Single well stimulation for the recovery of liquid hydrocarbons from subsurface formations | 319 | 1983 | |
| 5,751,895 Selective excitation of heating electrodes for oil wells | 267 | 1996 | |
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| 4,384,948 Single unit RCC | 121 | 1981 | |
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| 6,015,015 Insulated and/or concentric coiled tubing | 339 | 1997 | |
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| 6,172,124 Process for converting gas to liquids | 277 | 1997 | |
| 6,085,512 Synthesis gas production system and method | 280 | 1999 | |
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| 4,537,252 Method of underground conversion of coal | 272 | 1984 | |
| 4,662,439 Method of underground conversion of coal | 270 | 1985 | |
| 4,662,443 Combination air-blown and oxygen-blown underground coal gasification process | 273 | 1985 | |
| 5,059,303 Oil stabilization | 208 | 1989 | |
| 5,014,788 Method of increasing the permeability of a coal seam | 173 | 1990 | |
| 5,388,640 Method for producing methane-containing gaseous mixtures | 276 | 1993 | |
| 5,388,641 Method for reducing the inert gas fraction in methane-containing gaseous mixtures obtained from underground formations | 273 | 1993 | |
| 5,388,642 Coalbed methane recovery using membrane separation of oxygen from air | 273 | 1993 | |
| 5,388,643 Coalbed methane recovery using pressure swing adsorption separation | 271 | 1993 | |
| 5,388,645 Method for producing methane-containing gaseous mixtures | 283 | 1993 | |
| 5,439,054 Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation | 279 | 1994 | |
| 5,454,666 Method for disposing of unwanted gaseous fluid components within a solid carbonaceous subterranean formation | 282 | 1994 | |
| 5,566,756 Method for recovering methane from a solid carbonaceous subterranean formation | 195 | 1995 | |
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| 4,605,489 Upgrading shale oil by a combination process | 205 | 1985 | |
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| 5,289,882 Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas | 303 | 1991 | |
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| 4,299,285 Underground gasification of bituminous coal | 267 | 1980 | |
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| 4,397,732 Process for coal liquefaction employing selective coal feed | 266 | 1982 | |
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| 4,412,124 Electrode unit for electrically heating underground hydrocarbon deposits | 269 | 1981 | |
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| 4,597,441 Recovery of oil by in situ hydrogenation | 312 | 1984 | |
| 4,691,771 Recovery of oil by in-situ combustion followed by in-situ hydrogenation | 285 | 1986 | |
| 6,016,867 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking | 313 | 1998 | |
| 6,016,868 Production of synthetic crude oil from heavy hydrocarbons recovered by in situ hydrovisbreaking | 317 | 1998 | |
| 6,328,104 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking | 313 | 2000 | |
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| 4,524,113 Direct use of methanol fuel in a molten carbonate fuel cell | 139 | 1984 | |
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| 5,456,315 Horizontal well gravity drainage combustion process for oil recovery | 215 | 1994 | |
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| 4,390,067 Method of treating reservoirs containing very viscous crude oil or bitumen | 381 | 1981 | |
| 4,483,398 In-situ retorting of oil shale | 114 | 1983 | |
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| 5,008,085 Apparatus for thermal treatment of a hydrocarbon stream | 274 | 1989 | |
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| 5,676,212 Downhole electrode for well guidance system | 159 | 1996 | |
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| 6,389,814 Hydrocarbon combustion power generation system with CO2 sequestration | 206 | 2000 | |
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| 4,508,170 Method of increasing the yield of hydrocarbons from a subterranean formation | 161 | 1983 | |
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| 5,050,386 Method and apparatus for containment of hazardous material migration in the earth | 304 | 1990 | |
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| 5,339,897 Recovery and upgrading of hydrocarbon utilizing in situ combustion and horizontal wells | 332 | 1992 | |
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| 5,229,102 Catalytic ceramic membrane steam-hydrocarbon reformer | 235 | 1990 | |
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| 4,463,807 Minimizing subsidence effects during production of coal in situ | 142 | 1983 | |
| 4,448,252 Minimizing subsidence effects during production of coal in situ | 140 | 1983 | |
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| 5,020,596 Enhanced oil recovery system with a radiant tube heater | 269 | 1990 | |
| 5,082,055 Gas fired radiant tube heater | 288 | 1991 | |
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| 5,517,593 Control system for well stimulation apparatus with response time temperature rise used in determining heater control temperature setpoint | 290 | 1995 | |
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| 2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same | 2001 | ||
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| 4,623,444 Upgrading shale oil by a combination process | 205 | 1985 | |
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| 5,285,846 Thermal mineral extraction system | 276 | 1992 | |
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| 5,984,010 Hydrocarbon recovery systems and methods | 272 | 1997 | |
| 6,173,775 Systems and methods for hydrocarbon recovery | 272 | 1999 | |
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| 5,861,137 Steam reformer with internal hydrogen purification | 468 | 1996 | |
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| 4,637,464 In situ retorting of oil shale with pulsed water purge | 288 | 1984 | |
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| 4,927,857 Method of methanol production | 305 | 1989 | |
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| 4,683,947 Process and apparatus for monitoring and controlling the flammability of gas from an in-situ combustion oil recovery project | 73 | 1985 | |
| 4,734,115 Low pressure process for C.sub.3.sup.+ liquids recovery from process product gas | 199 | 1986 | |
| 5,284,878 Liquid phase methanol process with co-rich recycle | 146 | 1993 | |
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| 5,325,918 Optimal joule heating of the subsurface | 104 | 1993 | |
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| 4,359,687 Method and apparatus for determining shaliness and oil saturations in earth formations using induced polarization in the frequency domain | 280 | 1980 | |
| 4,398,151 Method for correcting an electrical log for the presence of shale in a formation | 269 | 1982 | |
| 4,583,046 Apparatus for focused electrode induced polarization logging | 272 | 1983 | |
| 4,540,882 Method of determining drilling fluid invasion | 281 | 1983 | |
| 4,542,648 Method of correlating a core sample with its original position in a borehole | 281 | 1983 | |
| 4,571,491 Method of imaging the atomic number of a sample | 291 | 1983 | |
| 4,583,242 Apparatus for positioning a sample in a computerized axial tomographic scanner | 274 | 1983 | |
| 4,613,754 Tomographic calibration apparatus | 284 | 1983 | |
| 4,635,197 High resolution tomographic imaging method | 267 | 1983 | |
| 4,644,283 In-situ method for determining pore size distribution, capillary pressure and permeability | 280 | 1984 | |
| 4,570,715 Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature | 323 | 1984 | |
| 4,663,711 Method of analyzing fluid saturation using computerized axial tomography | 268 | 1984 | |
| 4,572,299 Heater cable installation | 303 | 1984 | |
| 4,585,066 Well treating process for installing a cable bundle containing strands of changing diameter | 274 | 1984 | |
| 4,704,514 Heating rate variant elongated electrical resistance heater | 324 | 1985 | |
| 4,671,102 Method and apparatus for determining distribution of fluids | 289 | 1985 | |
| 4,626,665 Metal oversheathed electrical resistance heater | 307 | 1985 | |
| 4,719,423 NMR imaging of materials for transport properties | 295 | 1985 | |
| 4,728,892 NMR imaging of materials | 320 | 1985 | |
| 4,640,352 In-situ steam drive oil recovery process | 314 | 1985 | |
| 4,594,468 Process for the preparation of middle distillates from syngas | 149 | 1985 | |
| 4,730,162 Time-domain induced polarization logging method and apparatus with gated amplification level | 266 | 1985 | |
| 4,658,215 Method for induced polarization logging | 271 | 1986 | |
| 4,616,705 Mini-well temperature profiling process | 287 | 1986 | |
| 4,769,602 Determining multiphase saturations by NMR imaging of multiple nuclides | 290 | 1986 | |
| 4,769,606 Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations | 273 | 1986 | |
| 4,743,854 In-situ induced polarization method for determining formation permeability | 267 | 1986 | |
| 4,827,761 Sample holder | 281 | 1987 | |
| 4,856,341 Apparatus for analysis of failure of material | 274 | 1987 | |
| 5,306,640 Method for determining preselected properties of a crude oil | 272 | 1987 | |
| 4,886,118 Conductively heating a subterranean oil shale to create permeability and subsequently produce oil | 354 | 1988 | |
| 4,866,983 Analytical methods and apparatus for measuring the oil content of sponge core | 270 | 1988 | |
| 4,884,455 Method for analysis of failure of material employing imaging | 272 | 1989 | |
| 4,987,368 Nuclear magnetism logging tool using high-temperature superconducting squid detectors | 292 | 1989 | |
| 5,046,559 Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers | 320 | 1990 | |
| 5,060,726 Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication | 289 | 1990 | |
| 5,060,287 Heater utilizing copper-nickel alloy core | 319 | 1990 | |
| 5,065,818 Subterranean heaters | 311 | 1991 | |
| 5,189,283 Current to power crossover heater control | 282 | 1991 | |
| 5,168,927 Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation | 272 | 1991 | |
| 5,226,961 High temperature wellbore cement slurry | 294 | 1992 | |
| 5,255,742 Heat injection process | 340 | 1992 | |
| 5,297,626 Oil recovery process | 318 | 1992 | |
| 5,236,039 Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale | 346 | 1992 | |
| 5,366,012 Method of completing an uncased section of a borehole | 543 | 1993 | |
| 5,391,291 Hydrogenation catalyst and process | 277 | 1993 | |
| 5,392,854 Oil recovery process | 317 | 1993 | |
| 5,404,952 Heat injection process and apparatus | 300 | 1993 | |
| 5,411,089 Heat injection process | 291 | 1993 | |
| 5,433,271 Heat injection process | 286 | 1993 | |
| 5,409,071 Method to cement a wellbore | 278 | 1994 | |
| 5,497,087 NMR logging of natural gas reservoirs | 308 | 1994 | |
| 5,498,960 NMR logging of natural gas in reservoirs | 323 | 1994 | |
| 5,541,517 Method for drilling a borehole from one cased borehole to another cased borehole | 281 | 1995 | |
| RE35696 Heat injection process | 188 | 1995 | |
| 5,862,858 Flameless combustor | 302 | 1996 | |
| 5,899,269 Flameless combustor | 319 | 1996 | |
| 6,056,057 Heater well method and apparatus | 325 | 1997 | |
| 6,079,499 Heater well method and apparatus | 320 | 1997 | |
| 6,094,048 NMR logging of natural gas reservoirs | 273 | 1997 | |
| 6,023,554 Electrical heater | 322 | 1998 | |
| 6,102,122 Control of heat injection based on temperature and in-situ stress measurement | 288 | 1998 | |
| 6,019,172 Flameless combustor | 289 | 1999 | |
| 6,581,684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids | 262 | 2001 | |
| 6,588,503 In Situ thermal processing of a coal formation to control product composition | 219 | 2001 | |
| 6,588,504 In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids | 227 | 2001 | |
| 6,591,906 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content | 246 | 2001 | |
| 6,591,907 In situ thermal processing of a coal formation with a selected vitrinite reflectance | 219 | 2001 | |
| 6,607,033 In Situ thermal processing of a coal formation to produce a condensate | 215 | 2001 | |
| 6,609,570 In situ thermal processing of a coal formation and ammonia production | 215 | 2001 | |
| 6,688,387 In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate | 239 | 2001 | |
| 6,698,515 In situ thermal processing of a coal formation using a relatively slow heating rate | 215 | 2001 | |
| 6,702,016 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer | 226 | 2001 | |
| 6,708,758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas | 221 | 2001 | |
| 6,712,135 In situ thermal processing of a coal formation in reducing environment | 214 | 2001 | |
| 6,712,136 In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing | 267 | 2001 | |
| 6,712,137 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material | 213 | 2001 | |
| 6,715,546 In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore | 239 | 2001 | |
| 6,715,547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation | 218 | 2001 | |
| 6,715,548 In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids | 218 | 2001 | |
| 6,715,549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio | 180 | 2001 | |
| 6,719,047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment | 221 | 2001 | |
| 6,722,429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas | 237 | 2001 | |
| 6,722,430 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio | 214 | 2001 | |
| 6,722,431 In situ thermal processing of hydrocarbons within a relatively permeable formation | 238 | 2001 | |
| 6,725,920 In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products | 219 | 2001 | |
| 6,725,921 In situ thermal processing of a coal formation by controlling a pressure of the formation | 158 | 2001 | |
| 6,725,928 In situ thermal processing of a coal formation using a distributed combustor | 214 | 2001 | |
| 6,729,395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells | 222 | 2001 | |
| 6,729,396 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range | 212 | 2001 | |
| 6,729,397 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance | 218 | 2001 | |
| 6,729,401 In situ thermal processing of a hydrocarbon containing formation and ammonia production | 218 | 2001 | |
| 6,732,794 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content | 218 | 2001 | |
| 6,732,796 In situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio | 240 | 2001 | |
| 6,736,215 In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration | 224 | 2001 | |
| 6,739,393 In situ thermal processing of a coal formation and tuning production | 213 | 2001 | |
| 6,739,394 Production of synthesis gas from a hydrocarbon containing formation | 221 | 2001 | |
| 6,742,587 In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation | 213 | 2001 | |
| 6,742,588 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content | 246 | 2001 | |
| 6,742,589 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources | 212 | 2001 | |
| 6,742,593 In situ thermal processing of a hydrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation | 219 | 2001 | |
| 6,745,831 In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation | 239 | 2001 | |
| 6,745,837 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate | 221 | 2001 | |
| 6,749,021 In situ thermal processing of a coal formation using a controlled heating rate | 216 | 2001 | |
| 6,752,210 In situ thermal processing of a coal formation using heat sources positioned within open wellbores | 232 | 2001 | |
| 6,758,268 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate | 218 | 2001 | |
| 6,761,216 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas | 214 | 2001 | |
| 6,763,886 In situ thermal processing of a coal formation with carbon dioxide sequestration | 204 | 2001 | |
| 6,769,483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources | 222 | 2001 | |
| 6,769,485 In situ production of synthesis gas from a coal formation through a heat source wellbore | 217 | 2001 | |
| 6,789,625 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources | 217 | 2001 | |
| 6,805,195 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas | 206 | 2001 | |
| 6,820,688 In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio | 195 | 2001 | |
| 6,866,097 In situ thermal processing of a coal formation to increase a permeability/porosity of the formation | 179 | 2001 | |
| 2004/0015,023 IN SITU THERMAL PROCESSING OF A HYDROCARBON CONTAINING FORMATION TO PRODUCE A HYDROCARBON CONDENSATE | 74 | 2001 | |
| 6,782,947 In situ thermal processing of a relatively impermeable formation to increase permeability of the formation | 264 | 2002 | |
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| 4,303,126 Arrangement of wells for producing subsurface viscous petroleum | 190 | 1980 | |
| 4,273,188 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations | 272 | 1980 | |
| 4,381,641 Substoichiometric combustion of low heating value gases | 306 | 1980 | |
| 4,366,668 Substoichiometric combustion of low heating value gases | 287 | 1981 | |
| 4,363,361 Substoichiometric combustion of low heating value gases | 278 | 1981 | |
| 4,460,044 Advancing heated annulus steam drive | 199 | 1982 | |
| 4,544,478 Process for pyrolyzing hydrocarbonaceous solids to recover volatile hydrocarbons | 95 | 1984 | |
| 4,696,345 Hasdrive with multiple offset producers | 159 | 1986 | |
| 4,828,031 In situ chemical stimulation of diatomite formations | 215 | 1987 | |
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| 4,928,765 Method and apparatus for shale gas recovery | 287 | 1988 | |
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| 4,605,680 Conversion of synthesis gas to diesel fuel and gasoline | 276 | 1985 | |
* Cited By Examiner
Patent Citation Ranking
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