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

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Abstract

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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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Patent Owner(s)

Patent OwnerAddressTotal Patents
SHELL OIL COMPANYHOUSTON, TX5142

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berchenko, Ilya Emil Friendswood, TX 194 17385
de, Rouffignac Eric Pierre Houston, TX 161 20245
Fowler, Thomas David Houston, TX 172 14619
Ryan, Robert Charles Houston, TX 176 15253
Stegemeier, George Leo Houston, TX 199 16784
Vinegar, Harold J Bellaire, TX 546 53794
Wellington, Scott Lee Bellaire, TX 486 27539
Zhang, Etuan Houston, TX 184 16744

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SHELL OIL COMPANY (116)
4,359,687 Method and apparatus for determining shaliness and oil saturations in earth formations using induced polarization in the frequency domain 273 1980
4,398,151 Method for correcting an electrical log for the presence of shale in a formation 262 1982
4,583,046 Apparatus for focused electrode induced polarization logging 265 1983
4,540,882 Method of determining drilling fluid invasion 272 1983
4,542,648 Method of correlating a core sample with its original position in a borehole 273 1983
4,571,491 Method of imaging the atomic number of a sample 281 1983
4,583,242 Apparatus for positioning a sample in a computerized axial tomographic scanner 267 1983
4,613,754 Tomographic calibration apparatus 277 1983
4,635,197 High resolution tomographic imaging method 261 1983
4,644,283 In-situ method for determining pore size distribution, capillary pressure and permeability 274 1984
4,570,715 Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature 309 1984
4,663,711 Method of analyzing fluid saturation using computerized axial tomography 262 1984
4,572,299 Heater cable installation 290 1984
4,585,066 Well treating process for installing a cable bundle containing strands of changing diameter 262 1984
4,704,514 Heating rate variant elongated electrical resistance heater 311 1985
4,671,102 Method and apparatus for determining distribution of fluids 282 1985
4,626,665 Metal oversheathed electrical resistance heater 294 1985
4,719,423 NMR imaging of materials for transport properties 288 1985
4,728,892 NMR imaging of materials 313 1985
4,640,352 In-situ steam drive oil recovery process 303 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 260 1985
4,658,215 Method for induced polarization logging 265 1986
4,616,705 Mini-well temperature profiling process 281 1986
4,769,602 Determining multiphase saturations by NMR imaging of multiple nuclides 283 1986
4,769,606 Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations 266 1986
4,743,854 In-situ induced polarization method for determining formation permeability 261 1986
4,827,761 Sample holder 274 1987
4,856,341 Apparatus for analysis of failure of material 268 1987
5,306,640 Method for determining preselected properties of a crude oil 265 1987
4,886,118 Conductively heating a subterranean oil shale to create permeability and subsequently produce oil 333 1988
4,866,983 Analytical methods and apparatus for measuring the oil content of sponge core 264 1988
4,884,455 Method for analysis of failure of material employing imaging 266 1989
4,987,368 Nuclear magnetism logging tool using high-temperature superconducting squid detectors 286 1989
5,046,559 Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers 306 1990
5,060,726 Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication 277 1990
5,060,287 Heater utilizing copper-nickel alloy core 304 1990
5,065,818 Subterranean heaters 296 1991
5,189,283 Current to power crossover heater control 270 1991
5,168,927 Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation 263 1991
5,226,961 High temperature wellbore cement slurry 281 1992
5,255,742 Heat injection process 325 1992
5,297,626 Oil recovery process 304 1992
5,236,039 Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale 328 1992
5,366,012 Method of completing an uncased section of a borehole 531 1993
5,391,291 Hydrogenation catalyst and process 269 1993
5,392,854 Oil recovery process 306 1993
5,404,952 Heat injection process and apparatus 287 1993
5,411,089 Heat injection process 279 1993
5,433,271 Heat injection process 276 1993
5,409,071 Method to cement a wellbore 271 1994
5,497,087 NMR logging of natural gas reservoirs 301 1994
5,498,960 NMR logging of natural gas in reservoirs 316 1994
5,541,517 Method for drilling a borehole from one cased borehole to another cased borehole 269 1995
RE35696 Heat injection process 183 1995
5,862,858 Flameless combustor 288 1996
5,899,269 Flameless combustor 307 1996
6,056,057 Heater well method and apparatus 306 1997
6,079,499 Heater well method and apparatus 301 1997
6,094,048 NMR logging of natural gas reservoirs 266 1997
6,023,554 Electrical heater 306 1998
6,102,122 Control of heat injection based on temperature and in-situ stress measurement 273 1998
6,019,172 Flameless combustor 277 1999
6,581,684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids 247 2001
6,588,503 In Situ thermal processing of a coal formation to control product composition 207 2001
6,588,504 In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids 215 2001
6,591,906 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content 232 2001
6,591,907 In situ thermal processing of a coal formation with a selected vitrinite reflectance 207 2001
6,607,033 In Situ thermal processing of a coal formation to produce a condensate 203 2001
6,609,570 In situ thermal processing of a coal formation and ammonia production 203 2001
6,688,387 In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate 222 2001
6,698,515 In situ thermal processing of a coal formation using a relatively slow heating rate 203 2001
6,702,016 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer 211 2001
6,708,758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas 212 2001
6,712,135 In situ thermal processing of a coal formation in reducing environment 202 2001
6,712,136 In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing 250 2001
6,712,137 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material 201 2001
6,715,546 In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore 225 2001
6,715,547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation 206 2001
6,715,548 In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids 206 2001
6,715,549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio 170 2001
6,719,047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment 206 2001
6,722,429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas 223 2001
6,722,430 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio 202 2001
6,722,431 In situ thermal processing of hydrocarbons within a relatively permeable formation 221 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 207 2001
6,725,921 In situ thermal processing of a coal formation by controlling a pressure of the formation 156 2001
6,725,928 In situ thermal processing of a coal formation using a distributed combustor 202 2001
6,729,395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells 207 2001
6,729,396 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range 200 2001
6,729,397 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance 206 2001
6,729,401 In situ thermal processing of a hydrocarbon containing formation and ammonia production 206 2001
6,732,794 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 206 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 226 2001
6,736,215 In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration 212 2001
6,739,393 In situ thermal processing of a coal formation and tuning production 201 2001
6,739,394 Production of synthesis gas from a hydrocarbon containing formation 209 2001
6,742,587 In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation 201 2001
6,742,588 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content 232 2001
6,742,589 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources 200 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 207 2001
6,745,831 In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation 225 2001
6,745,837 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate 207 2001
6,749,021 In situ thermal processing of a coal formation using a controlled heating rate 204 2001
6,752,210 In situ thermal processing of a coal formation using heat sources positioned within open wellbores 218 2001
6,758,268 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate 206 2001
6,761,216 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas 202 2001
6,763,886 In situ thermal processing of a coal formation with carbon dioxide sequestration 197 2001
6,769,483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources 207 2001
6,769,485 In situ production of synthesis gas from a coal formation through a heat source wellbore 204 2001
6,789,625 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources 205 2001
6,805,195 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas 194 2001
6,820,688 In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio 183 2001
6,866,097 In situ thermal processing of a coal formation to increase a permeability/porosity of the formation 167 2001
2004/0015,023 IN SITU THERMAL PROCESSING OF A HYDROCARBON CONTAINING FORMATION TO PRODUCE A HYDROCARBON CONDENSATE 71 2001
6,782,947 In situ thermal processing of a relatively impermeable formation to increase permeability of the formation 247 2002
 
Mobil Oil Corporation (18)
4,234,230 In situ processing of mined oil shale 106 1979
4,549,396 Conversion of coal to electricity 269 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 263 1982
4,573,530 In-situ gasification of tar sands utilizing a combustible gas 257 1983
4,698,149 Enhanced recovery of hydrocarbonaceous fluids oil shale 190 1983
4,598,772 Method for operating a production well in an oxygen driven in-situ combustion oil recovery process 189 1983
4,598,770 Thermal recovery method for viscous oil 293 1984
4,669,542 Simultaneous recovery of crude from multiple zones in a reservoir 264 1984
4,766,958 Method of recovering viscous oil from reservoirs with multiple horizontal zones 177 1987
4,787,452 Disposal of produced formation fines during oil recovery 276 1987
4,982,786 Use of CO.sub.2 /steam to enhance floods in horizontal wellbores 254 1989
5,211,230 Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion 284 1992
5,339,904 Oil recovery optimization using a well having both horizontal and vertical sections 259 1992
5,377,756 Method for producing low permeability reservoirs using a single well 219 1993
5,411,086 Oil recovery by enhanced imbitition in low permeability reservoirs 175 1993
5,415,231 Method for producing low permeability reservoirs using steam 267 1994
5,431,224 Method of thermal stimulation for recovery of hydrocarbons 274 1994
 
AMOCO CORPORATION (14)
4,274,487 Indirect thermal stimulation of production wells 273 1979
4,537,252 Method of underground conversion of coal 265 1984
4,662,439 Method of underground conversion of coal 264 1985
4,662,443 Combination air-blown and oxygen-blown underground coal gasification process 267 1985
5,059,303 Oil stabilization 199 1989
5,014,788 Method of increasing the permeability of a coal seam 172 1990
5,388,640 Method for producing methane-containing gaseous mixtures 269 1993
5,388,641 Method for reducing the inert gas fraction in methane-containing gaseous mixtures obtained from underground formations 266 1993
5,388,642 Coalbed methane recovery using membrane separation of oxygen from air 266 1993
5,388,643 Coalbed methane recovery using pressure swing adsorption separation 263 1993
5,388,645 Method for producing methane-containing gaseous mixtures 276 1993
5,439,054 Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation 271 1994
5,454,666 Method for disposing of unwanted gaseous fluid components within a solid carbonaceous subterranean formation 275 1994
5,566,756 Method for recovering methane from a solid carbonaceous subterranean formation 189 1995
 
Chevron Research Company (12)
4,299,086 Utilization of energy obtained by substoichiometric combustion of low heating value gases 276 1978
4,186,801 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 277 1978
4,250,962 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 265 1979
4,303,126 Arrangement of wells for producing subsurface viscous petroleum 183 1980
4,273,188 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 265 1980
4,381,641 Substoichiometric combustion of low heating value gases 299 1980
4,366,668 Substoichiometric combustion of low heating value gases 280 1981
4,363,361 Substoichiometric combustion of low heating value gases 271 1981
4,460,044 Advancing heated annulus steam drive 193 1982
4,544,478 Process for pyrolyzing hydrocarbonaceous solids to recover volatile hydrocarbons 90 1984
4,696,345 Hasdrive with multiple offset producers 152 1986
4,828,031 In situ chemical stimulation of diatomite formations 206 1987
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (9)
4,984,594 Vacuum method for removing soil contamination utilizing surface electrical heating 326 1989
5,190,405 Vacuum method for removing soil contaminants utilizing thermal conduction heating 301 1990
5,229,583 Surface heating blanket for soil remediation 288 1992
5,318,116 Vacuum method for removing soil contaminants utilizing thermal conduction heating 306 1993
5,553,189 Radiant plate heater for treatment of contaminated surfaces 283 1994
5,656,239 Method for recovering contaminants from soil utilizing electrical heating 286 1995
6,102,622 Remediation method 282 1998
5,997,214 Remediation method 280 1998
6,485,232 Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system 263 2000
 
Texaco Inc. (7)
4,260,018 Method for steam injection in steeply dipping formations 79 1979
4,524,826 Method of heating an oil shale formation 282 1982
4,592,423 Hydrocarbon stratum retorting means and method 263 1984
4,576,231 Method and apparatus for combating encroachment by in situ treated formations 282 1984
4,682,652 Producing hydrocarbons through successively perforated intervals of a horizontal well between two vertical wells 270 1986
5,632,336 Method for improving injectivity of fluids in oil reservoirs 266 1994
2002/0004,533 Integration of shift reactors and hydrotreaters 92 2001
 
WORLD ENERGY SYSTEMS, INC. (5)
4,597,441 Recovery of oil by in situ hydrogenation 304 1984
4,691,771 Recovery of oil by in-situ combustion followed by in-situ hydrogenation 279 1986
6,016,867 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking 303 1998
6,016,868 Production of synthetic crude oil from heavy hydrocarbons recovered by in situ hydrovisbreaking 308 1998
6,328,104 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking 303 2000
 
AKAMAI TECHNOLOGIES, INC. (4)
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 25 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 25 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 25 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 25 2009
 
CANADIAN OCCIDENTAL PETROLEUM LTD. (4)
4,818,370 Process for converting heavy crudes, tars, and bitumens to lighter products in the presence of brine at supercritical conditions 295 1987
4,983,319 Preparation of low-viscosity improved stable crude oil transport emulsions 277 1988
5,340,467 Process for recovery of hydrocarbons and rejection of sand 309 1991
5,316,664 Process for recovery of hydrocarbons and rejection of sand 306 1992
 
NOVELIS INC. (4)
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 2001
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 2001
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 2001
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 2001
 
AIR PRODUCTS AND CHEMICALS, INC. (3)
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 192 1986
5,284,878 Liquid phase methanol process with co-rich recycle 146 1993
 
Cities Service Company (3)
4,412,585 Electrothermal process for recovering hydrocarbons 274 1982
4,415,034 Electrode well completion 107 1982
4,501,445 Method of in-situ hydrogenation of carbonaceous material 273 1983
 
Standard Oil Company (Indiana) (3)
4,265,307 Shale oil recovery 260 1978
4,353,418 In situ retorting of oil shale 279 1980
4,457,374 Transient response process for detecting in situ retorting conditions 244 1982
 
THOMPSON, GREG H. (3)
4,250,230 Generating electricity from coal in situ 295 1979
4,463,807 Minimizing subsidence effects during production of coal in situ 141 1983
4,448,252 Minimizing subsidence effects during production of coal in situ 140 1983
 
UENTECH CORPORATION (3)
5,099,918 Power sources for downhole electrical heating 278 1991
5,621,844 Electrical heating of mineral well deposits using downhole impedance transformation networks 319 1995
5,713,415 Low flux leakage cables and cable terminations for A.C. electrical heating of oil deposits 280 1996
 
UNIVERSITY OF UTAH (3)
4,324,292 Process for recovering products from oil shale 265 1980
4,396,062 Apparatus and method for time-domain tracking of high-speed chemical reactions 308 1980
4,409,090 Process for recovering products from tar sand 278 1982
 
ATLANTIC RICHFIELD COMPANY (2)
4,489,782 Viscous oil production using electrical current heating and lateral drain holes 292 1983
4,651,825 Enhanced well production 270 1986
 
CHEVRON RESEARCH AND TECHNOLOGY COMPANY (2)
5,085,276 Production of oil from low permeability formations by sequential steam fracturing 208 1990
5,305,829 Oil production from diatomite formations by fracture steamdrive 206 1992
 
CONOCOPHILLIPS COMPANY (2)
5,411,104 Coalbed methane drilling 331 1994
5,402,847 Coal bed methane recovery 151 1994
 
Energy Research Corporation (2)
4,772,634 Apparatus and method for methanol production using a fuel cell to regulate the gas composition entering the methanol synthesizer 264 1986
5,554,453 Carbonate fuel cell system with thermally integrated gasification 291 1995
 
EOR INTERNATIONAL, INC. (2)
4,524,827 Single well stimulation for the recovery of liquid hydrocarbons from subsurface formations 304 1983
5,751,895 Selective excitation of heating electrodes for oil wells 259 1996
 
EXXON PRODUCTION RESEARCH COMPANY (2)
4,390,067 Method of treating reservoirs containing very viscous crude oil or bitumen 372 1981
4,483,398 In-situ retorting of oil shale 109 1983
 
Exxon Research and Engineering Company (2)
4,458,757 In situ shale-oil recovery process 256 1983
6,110,358 Process for manufacturing improved process oils using extraction of hydrotreated distillates 186 1999
 
IIT Research Institute (2)
RE30738 Apparatus and method for in situ heat processing of hydrocarbonaceous formations 314 1980
4,498,535 Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations with a controlled parameter line 260 1982
 
Indugas, Inc. (2)
5,020,596 Enhanced oil recovery system with a radiant tube heater 260 1990
5,082,055 Gas fired radiant tube heater 279 1991
 
Marathon Oil Company (2)
4,243,511 Process for suppressing carbonate decomposition in vapor phase water retorting 91 1979
5,041,210 Oil shale retorting with steam and produced gas 88 1989
 
Phillips Petroleum Company (2)
4,931,171 Pyrolysis of carbonaceous materials 122 1982
4,885,080 Process for demetallizing and desulfurizing heavy crude oil 200 1988
 
PRATS, MICHAEL (2)
5,984,010 Hydrocarbon recovery systems and methods 265 1997
6,173,775 Systems and methods for hydrocarbon recovery 265 1999
 
PRODUCTION TECHNOLOGIES INTERNATIONAL, INC. (2)
4,716,960 Method and system for introducing electric current into a well 318 1986
5,207,273 Method and apparatus for pumping wells 289 1990
 
SYNTROLEUM CORPORATION (2)
6,172,124 Process for converting gas to liquids 270 1997
6,085,512 Synthesis gas production system and method 273 1999
 
ALBERTA INNOVATES - ENERGY AND ENVIRONMENT SOLUTIONS (1)
5,456,315 Horizontal well gravity drainage combustion process for oil recovery 208 1994
 
ALBERTA INNOVATES - TECHNOLOGY FUTURES (1)
6,412,559 Process for recovering methane and/or sequestering fluids 268 2000
 
ALBERTA RESEARCH COUNCIL INC. (1)
4,228,854 Enhanced oil recovery using electrical means 270 1979
 
Aminoil, USA, Inc. (1)
4,277,416 Process for producing methanol 271 1977
 
ANADARKO PETROLEUM CORPORATION (1)
2003/0029,617 Apparatus, method and system for single well solution-mining 170 2001
 
ARCHON TECHNOLOGIES LTD. (1)
5,626,191 Oilfield in-situ combustion process 110 1995
 
Ashland Oil, Inc. (1)
4,384,948 Single unit RCC 121 1981
 
BHP MINERALS INTERNATIONAL (1)
5,968,349 Extraction of bitumen from bitumen froth and biotreatment of bitumen froth tailings generated from tar sands 318 1998
 
Carbotek, Inc. (1)
4,694,907 Thermally-enhanced oil recovery method and apparatus 305 1986
 
CLEAN ENERGY SYSTEMS, INC. (1)
6,389,814 Hydrocarbon combustion power generation system with CO2 sequestration 200 2000
 
Concept R.K.K. Limited (1)
4,860,544 Closed cryogenic barrier for containment of hazardous material migration in the earth 302 1988
 
Concept RKK, Limited (1)
4,974,425 Closed cryogenic barrier for containment of hazardous material migration in the earth 300 1989
 
CONOCO INC. (1)
4,418,752 Thermal oil recovery with solvent recirculation 188 1982
 
DCNS SA (1)
5,861,137 Steam reformer with internal hydrogen purification 454 1996
 
DRAVO CORPORATION (1)
4,439,307 Heating process gas for indirect shale oil retorting through the combustion of residual carbon in oil depleted shale 87 1983
 
EDWARDS DEVELOPMENT CORP., A CORP OF NV. (1)
4,817,711 System for recovery of petroleum from petroleum impregnated media 336 1987
 
Electric Power Research Institute, Inc. (1)
5,491,969 Power plant utilizing compressed air energy storage and saturation 286 1995
 
Electromagnetic Energy Corporation (1)
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 139 1991
 
Elektra Energie A.G. (1)
4,456,065 Heavy oil recovering 304 1981
 
ENEL (Ente Nazionale per l'Energia Elettrica) & CISE S.p.A. (1)
5,437,506 System for measuring the transfer time of a sound-wave in a gas and thereby calculating the temperature of the gas 262 1993
 
ENGELHARD CORPORATION (1)
4,927,857 Method of methanol production 298 1989
 
Eureka Oil ASA (1)
6,499,536 Method to increase the oil production from an oil reservoir 204 2000
 
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY (1)
2002/0112,987 Slurry hydroprocessing for heavy oil upgrading using supported slurry catalysts 220 2000
 
EXXONMOBIL UPSTREAM RESEARCH COMPANY (1)
5,339,897 Recovery and upgrading of hydrocarbon utilizing in situ combustion and horizontal wells 323 1992
 
FRAMO ENGINEERING AS (1)
5,285,846 Thermal mineral extraction system 269 1992
 
GEOPETROL EQUIPMENT LTD. (1)
5,985,138 Tar sands extraction process 276 1998
 
GROW INTERNATIONAL CORP. (1)
5,767,584 Method for generating electrical power from fuel cell powered cars parked in a conventional parking lot 192 1995
 
GULF CANADA RESOURCES LIMITED/RESSOURCES GULF CANADA LIMITEE (1)
4,501,326 In-situ recovery of viscous hydrocarbonaceous crude oil 260 1983
 
GULF OIL CORPORATION, PITTSBURGH (1)
4,637,464 In situ retorting of oil shale with pulsed water purge 277 1984
 
GULF RESEARCH AND DEVELOPMENT COMPANY, A CORP. OF DE. (1)
4,299,285 Underground gasification of bituminous coal 260 1980
 
HALLIBURTON ENERGY SERVICES, INC. (1)
5,676,212 Downhole electrode for well guidance system 157 1996
 
ICG, LLC (1)
4,793,656 In-situ coal drying 137 1987
 
INTELLERGY CORPORATION (1)
6,187,465 Process and system for converting carbonaceous feedstocks into energy without greenhouse gas emissions 210 1998
 
International Coal Refining Company (1)
4,397,732 Process for coal liquefaction employing selective coal feed 259 1982
 
INTEVEP, S.A. (1)
5,891,829 Process for the downhole upgrading of extra heavy crude oil 55 1997
 
ITT RESEARCH INSTITUTE (1)
4,485,869 Recovery of liquid hydrocarbons from oil shale by electromagnetic heating in situ 326 1982
 
JUDD, DANIEL (1)
4,856,587 Recovery of oil from oil-bearing formation by continually flowing pressurized heated gas through channel alongside matrix 266 1988
 
Kraftwerk Union Aktiengesellschaft (1)
4,608,818 Medium-load power-generating plant with integrated coal gasification plant 268 1984
 
KRUPP KOPPERS GMBH (1)
4,994,093 Method of producing methanol synthesis gas 265 1990
 
LAWRENCE LIVERMORE NATIONAL SECURITY, LLC (1)
5,325,918 Optimal joule heating of the subsurface 97 1993
 
LITTMANN, WOLFGANG, OSTENMEER 1 STEINHUDE (1)
4,508,170 Method of increasing the yield of hydrocarbons from a subterranean formation 161 1983
 
LOCKHEED MARTIN CORPORATION (1)
6,467,543 System and process for secondary hydrocarbon recovery 196 2000
 
M.W. KELLOGG COMPANY, THE (1)
4,407,973 Methanol from coal and natural gas 266 1982
 
Magrange, Inc. (1)
5,064,006 Downhole combination tool 296 1988
 
MEDALERT, INC. (1)
5,229,102 Catalytic ceramic membrane steam-hydrocarbon reformer 231 1990
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
4,412,124 Electrode unit for electrically heating underground hydrocarbon deposits 262 1981
 
Motoren-Werke Mannheim AG (1)
4,378,048 Substoichiometric combustion of low heating value gases using different platinum catalysts 262 1981
 
Multi Mineral Corporation (1)
4,285,547 Integrated in situ shale oil and mineral recovery process 90 1980
 
NENNIGER, JOHN (1)
5,517,593 Control system for well stimulation apparatus with response time temperature rise used in determining heater control temperature setpoint 281 1995
 
NKK Corporation (1)
5,261,490 Method for dumping and disposing of carbon dioxide gas and apparatus therefor 275 1992
 
NORANDA INC. (1)
5,539,853 Downhole heating system with separate wiring cooling and heating chambers and gas flow therethrough 72 1995
 
NOWSCO WELL SERVICE LTD. (1)
6,015,015 Insulated and/or concentric coiled tubing 320 1997
 
Occidental Oil Shale, Inc. (1)
4,605,489 Upgrading shale oil by a combination process 198 1985
 
Occidental Research Corporation (1)
4,260,192 Recovery of magnesia from oil shale 85 1979
 
OCCIDENTAL SHALE INC. (1)
4,623,444 Upgrading shale oil by a combination process 198 1985
 
ORS MERGER CORPORATION, A GENERAL CORP. OF OK (1)
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 269 1985
 
P. H. Jones Hydrogeology, Inc. (1)
4,319,635 Method for enhanced oil recovery by geopressured waterflood 102 1980
 
PETROLEO BRASILEIRO S.A. - PETROBRAS (1)
5,182,792 Process of electric pipeline heating utilizing heating elements inserted in pipelines 259 1991
 
QUICK CONNECTORS, INC. (1)
5,289,882 Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas 290 1991
 
Ramcor, Inc. (1)
4,197,911 Process for in situ coal gasification 259 1978
 
RAMEX SYN-FUELS INTERNATIONAL, INC. (1)
4,928,765 Method and apparatus for shale gas recovery 278 1988
 
RAYTHEON COMPANY (1)
4,457,365 In situ radio frequency selective heating system 308 1981
 
Resource Technology Associates (1)
5,008,085 Apparatus for thermal treatment of a hydrocarbon stream 268 1989
 
RKK, LTD (1)
5,050,386 Method and apparatus for containment of hazardous material migration in the earth 294 1990
 
ROBERT L.MAGNIE AND ASSOCIATES,INC. A CORP OF COLO. (1)
4,183,405 Enhanced recoveries of petroleum and hydrogen from underground reservoirs 282 1978
 
RP INTERNATIONAL PTY LIMITED (1)
4,737,267 Oil shale processing apparatus and method 140 1986
 
RWE-DEA AKTIENGESELLSCHAFT FUR MINERALOEL UND CHEMIE (1)
4,252,191 Method of recovering petroleum and bitumen from subterranean reservoirs 273 1979
 
SCHLUMBERGER TECHNOLOGIES, INC. (1)
6,354,373 Expandable tubing for a well bore hole and method of expanding 400 1998
 
Scientific Engineering Instruments, Inc. (1)
5,349,859 Method and apparatus for measuring acoustic wave velocity using impulse response 263 1991
 
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. (1)
4,605,680 Conversion of synthesis gas to diesel fuel and gasoline 270 1985
 
Societe Nationale Elf Aquitaine (1)
4,513,816 Sealing system for a well bore in which a hot fluid is circulated 259 1984
 
TARIM ASSOCIATES FOR SCIENTIFIC MINERAL AND OIL EXPLORATION AG (1)
5,868,202 Hydrologic cells for recovery of hydrocarbons or thermal energy from coal, oil-shale, tar-sands and oil-bearing formations 349 1997
 
Terra Tek, Inc. (1)
4,384,613 Method of in-situ retorting of carbonaceous material for recovery of organic liquids and gases 279 1980
 
The Babcock & Wilcox Company (1)
4,848,924 Acoustic pyrometer 276 1987
 
The Badger Company, Inc. (1)
4,193,451 Method for production of organic products from kerogen 271 1977
 
The Board of Regents of the University of Oklahoma (1)
5,201,219 Method and apparatus for measuring free hydrocarbons and hydrocarbons potential from whole core 247 1990
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5,525,322 Method for simultaneous recovery of hydrogen from water and from hydrocarbons 320 1994
 
Uentech International Corporation (1)
6,353,706 Optimum oil-well casing heating 210 2000
 
Union Oil Company of California (1)
5,126,037 Geopreater heating method and apparatus 284 1990
 
UNITED TECHNOLOGIES CORPORATION (1)
4,524,113 Direct use of methanol fuel in a molten carbonate fuel cell 139 1984
 
UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION (1)
4,776,638 Method and apparatus for conversion of coal in situ 299 1987
 
UNIVERSITY OF WYOMING RESEARCH CORPORATION D/B/A WESTERN RESEARCH INSTITUTE (1)
6,244,338 System for improving coalbed gas production 147 1999
 
UOP LLC (1)
4,448,251 In situ conversion of hydrocarbonaceous oil 187 1982
 
Westinghouse Electric Corp. (1)
5,955,039 Coal gasification and hydrogen production system and method 236 1996
 
WORCESTER POLYTECHNIC INSTITUTE (1)
6,152,987 Hydrogen gas-extraction module and method of fabrication 305 1998
 
Other [Check patent profile for assignment information] (16)
4,243,101 Coal gasification method 268 1978
4,375,302 Process for the in situ recovery of both petroleum and inorganic mineral content of an oil shale deposit 113 1980
4,306,621 Method for in situ coal gasification operations 268 1980
4,423,311 Electric heating apparatus for de-icing pipes 270 1981
4,444,255 Apparatus and process for the recovery of oil 264 1981
4,344,483 Multiple-site underground magnetic heating of hydrocarbons 274 1981
4,444,258 In situ recovery of oil from oil shale 274 1981
4,479,541 Method and apparatus for recovery of oil, gas and mineral deposits by panel opening 249 1982
4,762,425 System for temperature profile measurement in large furnances and kilns and method therefor 273 1987
4,883,582 Vis-breaking heavy crude oils for pumpability 92 1988
4,895,206 Pulsed in situ exothermic shock wave and retorting process for hydrocarbon recovery and detoxification of selected wastes 271 1989
5,027,896 Method for in-situ recovery of energy raw material by the introduction of a water/oxygen slurry 174 1990
5,082,054 In-situ tuned microwave oil extraction process 366 1990
5,217,076 Method and apparatus for improved recovery of oil from porous, subsurface deposits (targevcir oricess) 375 1991
5,624,188 Acoustic thermometer 269 1994
6,112,808 Method and apparatus for subterranean thermal conditioning 258 1997

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SHELL OIL COMPANY (138)
7,156,176 Installation and use of removable heaters in a hydrocarbon containing formation 152 2002
8,238,730 High voltage temperature limited heaters 15 2003
8,224,164 Insulated conductor temperature limited heaters 15 2003
8,224,163 Variable frequency temperature limited heaters 0 2003
8,200,072 Temperature limited heaters for heating subsurface formations or wellbores 15 2003
7,219,734 Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation 165 2003
7,121,341 Conductor-in-conduit temperature limited heaters 149 2003
8,355,623 Temperature limited heaters with high power factors 10 2005
7,510,000 Reducing viscosity of oil for production from a hydrocarbon containing formation 102 2005
7,490,665 Variable frequency temperature limited heaters 105 2005
7,481,274 Temperature limited heaters with relatively constant current 100 2005
7,431,076 Temperature limited heaters using modulated DC power 111 2005
7,424,915 Vacuum pumping of conductor-in-conduit heaters 111 2005
7,383,877 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations 106 2005
7,370,704 Triaxial temperature limited heater 111 2005
7,357,180 Inhibiting effects of sloughing in wellbores 118 2005
7,353,872 Start-up of temperature limited heaters using direct current (DC) 104 2005
7,320,364 Inhibiting reflux in a heated well of an in situ conversion system 99 2005
8,224,165 Temperature limited heater utilizing non-ferromagnetic conductor 16 2006
8,070,840 Treatment of gas from an in situ conversion process 33 2006
8,027,571 In situ conversion process systems utilizing wellbores in at least two regions of a formation 43 2006
7,986,869 Varying properties along lengths of temperature limited heaters 46 2006
7,942,197 Methods and systems for producing fluid from an in situ conversion process 50 2006
7,860,377 Subsurface connection methods for subsurface heaters 75 2006
7,831,133 Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration 63 2006
7,831,134 Grouped exposed metal heaters 63 2006
7,575,052 In situ conversion process utilizing a closed loop heating system 100 2006
7,575,053 Low temperature monitoring system for subsurface barriers 99 2006
7,546,873 Low temperature barriers for use with in situ processes 74 2006
7,527,094 Double barrier system for an in situ conversion process 110 2006
7,500,528 Low temperature barrier wellbores formed using water flushing 111 2006
7,435,037 Low temperature barriers with heat interceptor wells for in situ processes 121 2006
8,606,091 Subsurface heaters with low sulfidation rates 0 2006
7,635,025 Cogeneration systems and processes for treating hydrocarbon containing formations 95 2006
7,591,310 Methods of hydrotreating a liquid stream to remove clogging compounds 106 2006
7,584,789 Methods of cracking a crude product to produce additional crude products 105 2006
7,581,589 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 110 2006
7,562,706 Systems and methods for producing hydrocarbons from tar sands formations 111 2006
7,559,367 Temperature limited heater with a conduit substantially electrically isolated from the formation 113 2006
7,559,368 Solution mining systems and methods for treating hydrocarbon containing formations 112 2006
7,556,095 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 130 2006
7,556,096 Varying heating in dawsonite zones in hydrocarbon containing formations 117 2006
7,549,470 Solution mining and heating by oxidation for treating hydrocarbon containing formations 130 2006
7,461,691 In situ recovery from a hydrocarbon containing formation 141 2007
8,083,813 Methods of producing transportation fuel 31 2007
7,912,358 Alternate energy source usage for in situ heat treatment processes 51 2007
7,866,385 Power systems utilizing the heat of produced formation fluid 63 2007
7,793,722 Non-ferromagnetic overburden casing 61 2007
7,785,427 High strength alloys 63 2007
7,683,296 Adjusting alloy compositions for selected properties in temperature limited heaters 79 2007
7,673,786 Welding shield for coupling heaters 80 2007
7,635,023 Time sequenced heating of multiple layers in a hydrocarbon containing formation 106 2007
7,631,689 Sulfur barrier for use with in situ processes for treating formations 98 2007
7,610,962 Sour gas injection for use with in situ heat treatment 87 2007
7,604,052 Compositions produced using an in situ heat treatment process 107 2007
7,533,719 Wellhead with non-ferromagnetic materials 115 2007
7,798,221 In situ recovery from a hydrocarbon containing formation 77 2007
7,845,411 In situ heat treatment process utilizing a closed loop heating system 63 2007
7,841,401 Gas injection to inhibit migration during an in situ heat treatment process 62 2007
7,730,946 Treating tar sands formations with dolomite 70 2007
7,730,945 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 71 2007
7,730,947 Creating fluid injectivity in tar sands formations 71 2007
7,717,171 Moving hydrocarbons through portions of tar sands formations with a fluid 73 2007
7,703,513 Wax barrier for use with in situ processes for treating formations 82 2007
7,681,647 Method of producing drive fluid in situ in tar sands formations 80 2007
7,677,310 Creating and maintaining a gas cap in tar sands formations 66 2007
7,677,314 Method of condensing vaporized water in situ to treat tar sands formations 65 2007
7,673,681 Treating tar sands formations with karsted zones 68 2007
7,644,765 Heating tar sands formations while controlling pressure 78 2007
7,635,024 Heating tar sands formations to visbreaking temperatures 96 2007
7,631,690 Heating hydrocarbon containing formations in a spiral startup staged sequence 99 2007
7,562,707 Heating hydrocarbon containing formations in a line drive staged process 113 2007
7,540,324 Heating hydrocarbon containing formations in a checkerboard pattern staged process 115 2007
7,640,980 Thermal processes for subsurface formations 78 2008
8,662,175 Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities 1 2008
8,459,359 Treating nahcolite containing formations and saline zones 7 2008
8,381,815 Production from multiple zones of a tar sands formation 9 2008
8,327,681 Wellbore manufacturing processes for in situ heat treatment processes 4 2008
8,042,610 Parallel heater system for subsurface formations 42 2008
7,950,453 Downhole burner systems and methods for heating subsurface formations 57 2008
7,931,086 Heating systems for heating subsurface formations 60 2008
7,849,922 In situ recovery from residually heated sections in a hydrocarbon containing formation 65 2008
7,841,408 In situ heat treatment from multiple layers of a tar sands formation 64 2008
7,841,425 Drilling subsurface wellbores with cutting structures 65 2008
7,832,484 Molten salt as a heat transfer fluid for heating a subsurface formation 64 2008
7,798,220 In situ heat treatment of a tar sands formation after drive process treatment 62 2008
8,536,497 Methods for forming long subsurface heaters 0 2008
8,276,661 Heating subsurface formations by oxidizing fuel on a fuel carrier 16 2008
8,272,455 Methods for forming wellbores in heated formations 5 2008
8,240,774 Solution mining and in situ treatment of nahcolite beds 17 2008
8,196,658 Irregular spacing of heat sources for treating hydrocarbon containing formations 24 2008
8,162,059 Induction heaters used to heat subsurface formations 28 2008
8,146,661 Cryogenic treatment of gas 30 2008
8,146,669 Multi-step heater deployment in a subsurface formation 28 2008
8,113,272 Three-phase heaters with common overburden sections for heating subsurface formations 9 2008
8,011,451 Ranging methods for developing wellbores in subsurface formations 35 2008
7,866,386 In situ oxidation of subsurface formations 62 2008
7,866,388 High temperature methods for forming oxidizer fuel 60 2008
8,627,887 In situ recovery from a hydrocarbon containing formation 0 2008
8,752,904 Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations 0 2009
8,177,305 Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations 28 2009
8,172,335 Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations 23 2009
8,162,405 Using tunnels for treating subsurface hydrocarbon containing formations 25 2009
8,151,907 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations 28 2009
8,353,347 Deployment of insulated conductors for treating subsurface formations 3 2009
8,281,861 Circulated heated transfer fluid heating of subsurface hydrocarbon formations 15 2009
8,267,170 Offset barrier wells in subsurface formations 13 2009
8,267,185 Circulated heated transfer fluid systems used to treat a subsurface formation 14 2009
8,261,832 Heating subsurface formations with fluids 19 2009
8,256,512 Movable heaters for treating subsurface hydrocarbon containing formations 7 2009
8,220,539 Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation 23 2009
8,636,323 Mines and tunnels for use in treating subsurface hydrocarbon containing formations 0 2009
8,562,078 Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations 3 2009
7,942,203 Thermal processes for subsurface formations 58 2010
8,448,707 Non-conducting heater casings 0 2010
8,434,555 Irregular pattern treatment of a subsurface formation 8 2010
8,327,932 Recovering energy from a subsurface formation 7 2010
8,608,249 In situ thermal processing of an oil shale formation 1 2010
8,192,682 High strength alloys 18 2010
8,225,866 In situ recovery from a hydrocarbon containing formation 14 2010
8,233,782 Grouped exposed metal heaters 7 2010
8,356,935 Methods for assessing a temperature in a subsurface formation 4 2010
8,257,112 Press-fit coupling joint for joining insulated conductors 5 2010
8,151,880 Methods of making transportation fuel 26 2010
8,739,874 Methods for heating with slots in hydrocarbon formations 0 2011
8,701,768 Methods for treating hydrocarbon formations 0 2011
8,701,769 Methods for treating hydrocarbon formations based on geology 0 2011
8,631,866 Leak detection in circulated fluid systems for heating subsurface formations 0 2011
8,502,120 Insulating blocks and methods for installation in insulated conductor heaters 1 2011
8,485,256 Variable thickness insulated conductors 2 2011
8,230,927 Methods and systems for producing fluid from an in situ conversion process 7 2011
8,579,031 Thermal processes for subsurface formations 0 2011
8,732,946 Mechanical compaction of insulator for insulated conductor splices 0 2011
8,586,866 Hydroformed splice for insulated conductors 0 2011
8,586,867 End termination for three-phase insulated conductors 0 2011
8,555,971 Treating tar sands formations with dolomite 2 2012
8,485,252 In situ recovery from a hydrocarbon containing formation 6 2012
8,485,847 Press-fit coupling joint for joining insulated conductors 2 2012
 
COMPANY, SHELL OIL (1)
8,191,630 Creating fluid injectivity in tar sands formations 25 2010
 
CONOCOPHILLIPS COMPANY (1)
8,002,034 Recovery of hydrocarbons from oil shale deposits 0 2010
 
CUMMINS FILTRATION IP, INC. (1)
8,071,037 Catalytic devices for converting urea to ammonia 1 2008
 
ENERGY, UNITED STATES DEPARTMENT OF (1)
7,597,147 Temperature limited heaters using phase transformation of ferromagnetic material 104 2007
 
HALLIBURTON ENERGY SERVICES, INC. (1)
7,909,094 Oscillating fluid flow in a wellbore 9 2008
 
MOUNTAIN WEST ENERGY INC. (1)
8,205,674 Apparatus, system, and method for in-situ extraction of hydrocarbons 0 2007

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