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

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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, TX2266

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berchenko, Ilya Emil Friendswood, TX 104 21230
de, Rouffignac Eric Pierre Houston, TX 126 24543
Fowler, Thomas David Katy, TX 90 18053
Ryan, Robert Charles Houston, TX 93 18785
Stegemeier, George Leo Houston, TX 103 20828
Vinegar, Harold J Houston, TX 330 65579
Wellington, Scott Lee Belliare, TX 293 34239
Zhang, Etuan Houston, TX 102 20566

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (15)
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RP INTERNATIONAL PTY LIMITED (1)
4,737,267 Oil shale processing apparatus and method 153 1986
 
Mobil Oil Corporation (17)
4,549,396 Conversion of coal to electricity 287 1982
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4,530,401 Method for maximum in-situ visbreaking of heavy oil 281 1982
4,573,530 In-situ gasification of tar sands utilizing a combustible gas 277 1983
4,698,149 Enhanced recovery of hydrocarbonaceous fluids oil shale 216 1983
4,598,772 Method for operating a production well in an oxygen driven in-situ combustion oil recovery process 208 1983
4,598,770 Thermal recovery method for viscous oil 314 1984
4,669,542 Simultaneous recovery of crude from multiple zones in a reservoir 282 1984
4,766,958 Method of recovering viscous oil from reservoirs with multiple horizontal zones 195 1987
4,787,452 Disposal of produced formation fines during oil recovery 293 1987
4,982,786 Use of CO.sub.2 /steam to enhance floods in horizontal wellbores 275 1989
5,211,230 Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion 310 1992
5,339,904 Oil recovery optimization using a well having both horizontal and vertical sections 277 1992
5,377,756 Method for producing low permeability reservoirs using a single well 244 1993
5,411,086 Oil recovery by enhanced imbitition in low permeability reservoirs 194 1993
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Eureka Oil ASA (1)
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University of Kentucky Research Foundation (1)
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BHP MINERALS INTERNATIONAL (1)
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5,626,191 Oilfield in-situ combustion process 113 1995
 
ATLANTIC RICHFIELD COMPANY (2)
4,489,782 Viscous oil production using electrical current heating and lateral drain holes 311 1983
4,651,825 Enhanced well production 288 1986
 
GROW INTERNATIONAL CORP. (1)
5,767,584 Method for generating electrical power from fuel cell powered cars parked in a conventional parking lot 201 1995
 
Exxon Research and Engineering Co. (2)
4,458,757 In situ shale-oil recovery process 283 1983
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EXXONMOBIL RESEARCH AND ENGINEERING COMPANY (1)
2002/0112,987 Slurry hydroprocessing for heavy oil upgrading using supported slurry catalysts 239 2000
 
ALBERTA INNOVATES - TECHNOLOGY FUTURES (1)
6,412,559 Process for recovering methane and/or sequestering fluids 301 2000
 
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Magrange, Inc. (1)
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THE BOARD OF REGENTS OF THE UNIVERSITY OF OKLAHOMA (1)
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5,085,276 Production of oil from low permeability formations by sequential steam fracturing 231 1990
5,305,829 Oil production from diatomite formations by fracture steamdrive 229 1992
 
UNION OIL COMPANY OF CALIFORNIA (1)
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CITIES SERVICE COMPANY (3)
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4,415,034 Electrode well completion 123 1982
4,501,445 Method of in-situ hydrogenation of carbonaceous material 293 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 292 1986
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RAYTHEON COMPANY (1)
4,457,365 In situ radio frequency selective heating system 348 1981
 
TerraTek, Inc. (1)
4,384,613 Method of in-situ retorting of carbonaceous material for recovery of organic liquids and gases 297 1980
 
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4,353,418 In situ retorting of oil shale 305 1980
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CONOCOPHILLIPS COMPANY (2)
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4,407,973 Methanol from coal and natural gas 286 1982
 
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Uentech Corporation (3)
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AMOCO CORPORATION (13)
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4,299,285 Underground gasification of bituminous coal 278 1980
 
International Coal Refining Company (1)
4,397,732 Process for coal liquefaction employing selective coal feed 277 1982
 
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ALBERTA INNOVATES - ENERGY AND ENVIRONMENT SOLUTIONS (1)
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Exxon Production Research Company (2)
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6,389,814 Hydrocarbon combustion power generation system with CO2 sequestration 217 2000
 
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RKK, Limited (1)
5,050,386 Method and apparatus for containment of hazardous material migration in the earth 318 1990
 
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5,339,897 Recovery and upgrading of hydrocarbon utilizing in situ combustion and horizontal wells 349 1992
 
MEDALERT, INC. (1)
5,229,102 Catalytic ceramic membrane steam-hydrocarbon reformer 238 1990
 
THOMPSON, GREG H. (2)
4,463,807 Minimizing subsidence effects during production of coal in situ 142 1983
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Indugas, Inc. (2)
5,020,596 Enhanced oil recovery system with a radiant tube heater 285 1990
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NENNIGER, JOHN (1)
5,517,593 Control system for well stimulation apparatus with response time temperature rise used in determining heater control temperature setpoint 301 1995
 
NOVELIS INC. (1)
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 0 2001
 
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DCNS SA (1)
5,861,137 Steam reformer with internal hydrogen purification 489 1996
 
GULF OIL CORPORATION, PITTSBURGH (1)
4,637,464 In situ retorting of oil shale with pulsed water purge 308 1984
 
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4,927,857 Method of methanol production 317 1989
 
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5,284,878 Liquid phase methanol process with co-rich recycle 146 1993
 
LAWRENCE LIVERMORE NATIONAL SECURITY, LLC (1)
5,325,918 Optimal joule heating of the subsurface 117 1993
 
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 291 1980
4,398,151 Method for correcting an electrical log for the presence of shale in a formation 281 1982
4,583,046 Apparatus for focused electrode induced polarization logging 283 1983
4,540,882 Method of determining drilling fluid invasion 294 1983
4,542,648 Method of correlating a core sample with its original position in a borehole 293 1983
4,571,491 Method of imaging the atomic number of a sample 306 1983
4,583,242 Apparatus for positioning a sample in a computerized axial tomographic scanner 285 1983
4,613,754 Tomographic calibration apparatus 301 1983
4,635,197 High resolution tomographic imaging method 278 1983
4,644,283 In-situ method for determining pore size distribution, capillary pressure and permeability 292 1984
4,570,715 Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature 351 1984
4,663,711 Method of analyzing fluid saturation using computerized axial tomography 279 1984
4,572,299 Heater cable installation 320 1984
4,585,066 Well treating process for installing a cable bundle containing strands of changing diameter 292 1984
4,704,514 Heating rate variant elongated electrical resistance heater 344 1985
4,671,102 Method and apparatus for determining distribution of fluids 302 1985
4,626,665 Metal oversheathed electrical resistance heater 327 1985
4,719,423 NMR imaging of materials for transport properties 307 1985
4,728,892 NMR imaging of materials 332 1985
4,640,352 In-situ steam drive oil recovery process 333 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 278 1985
4,658,215 Method for induced polarization logging 282 1986
4,616,705 Mini-well temperature profiling process 300 1986
4,769,602 Determining multiphase saturations by NMR imaging of multiple nuclides 302 1986
4,769,606 Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations 284 1986
4,743,854 In-situ induced polarization method for determining formation permeability 279 1986
4,827,761 Sample holder 297 1987
4,856,341 Apparatus for analysis of failure of material 285 1987
5,306,640 Method for determining preselected properties of a crude oil 284 1987
4,886,118 Conductively heating a subterranean oil shale to create permeability and subsequently produce oil 389 1988
4,866,983 Analytical methods and apparatus for measuring the oil content of sponge core 282 1988
4,884,455 Method for analysis of failure of material employing imaging 283 1989
4,987,368 Nuclear magnetism logging tool using high-temperature superconducting squid detectors 305 1989
5,046,559 Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers 341 1990
5,060,726 Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication 306 1990
5,060,287 Heater utilizing copper-nickel alloy core 336 1990
5,065,818 Subterranean heaters 330 1991
5,189,283 Current to power crossover heater control 299 1991
5,168,927 Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation 284 1991
5,226,961 High temperature wellbore cement slurry 312 1992
5,255,742 Heat injection process 359 1992
5,297,626 Oil recovery process 337 1992
5,236,039 Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale 376 1992
5,366,012 Method of completing an uncased section of a borehole 558 1993
5,391,291 Hydrogenation catalyst and process 294 1993
5,392,854 Oil recovery process 331 1993
5,404,952 Heat injection process and apparatus 317 1993
5,411,089 Heat injection process 310 1993
5,433,271 Heat injection process 302 1993
5,409,071 Method to cement a wellbore 290 1994
5,497,087 NMR logging of natural gas reservoirs 319 1994
5,498,960 NMR logging of natural gas in reservoirs 334 1994
5,541,517 Method for drilling a borehole from one cased borehole to another cased borehole 299 1995
RE35696 Heat injection process 198 1995
5,862,858 Flameless combustor 333 1996
5,899,269 Flameless combustor 335 1996
6,056,057 Heater well method and apparatus 352 1997
6,079,499 Heater well method and apparatus 345 1997
6,094,048 NMR logging of natural gas reservoirs 285 1997
6,023,554 Electrical heater 342 1998
6,102,122 Control of heat injection based on temperature and in-situ stress measurement 310 1998
6,019,172 Flameless combustor 319 1999
6,581,684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids 282 2001
6,588,503 In Situ thermal processing of a coal formation to control product composition 238 2001
6,588,504 In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids 244 2001
6,591,906 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content 266 2001
6,591,907 In situ thermal processing of a coal formation with a selected vitrinite reflectance 236 2001
6,607,033 In Situ thermal processing of a coal formation to produce a condensate 232 2001
6,609,570 In situ thermal processing of a coal formation and ammonia production 232 2001
6,688,387 In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate 264 2001
6,698,515 In situ thermal processing of a coal formation using a relatively slow heating rate 233 2001
6,702,016 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer 249 2001
6,708,758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas 235 2001
6,712,135 In situ thermal processing of a coal formation in reducing environment 231 2001
6,712,136 In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing 292 2001
6,712,137 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material 230 2001
6,715,546 In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore 259 2001
6,715,547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation 235 2001
6,715,548 In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids 235 2001
6,715,549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio 192 2001
6,719,047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment 244 2001
6,722,429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas 257 2001
6,722,430 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio 231 2001
6,722,431 In situ thermal processing of hydrocarbons within a relatively permeable formation 261 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 236 2001
6,725,921 In situ thermal processing of a coal formation by controlling a pressure of the formation 159 2001
6,725,928 In situ thermal processing of a coal formation using a distributed combustor 231 2001
6,729,395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells 246 2001
6,729,396 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range 229 2001
6,729,397 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance 235 2001
6,729,401 In situ thermal processing of a hydrocarbon containing formation and ammonia production 235 2001
6,732,794 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 236 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 258 2001
6,736,215 In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration 241 2001
6,739,393 In situ thermal processing of a coal formation and tuning production 230 2001
6,739,394 Production of synthesis gas from a hydrocarbon containing formation 238 2001
6,742,587 In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation 230 2001
6,742,588 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content 266 2001
6,742,589 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources 229 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 237 2001
6,745,831 In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation 259 2001
6,745,837 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate 242 2001
6,749,021 In situ thermal processing of a coal formation using a controlled heating rate 233 2001
6,752,210 In situ thermal processing of a coal formation using heat sources positioned within open wellbores 256 2001
6,758,268 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate 235 2001
6,761,216 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas 231 2001
6,763,886 In situ thermal processing of a coal formation with carbon dioxide sequestration 215 2001
6,769,483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources 246 2001
6,769,485 In situ production of synthesis gas from a coal formation through a heat source wellbore 234 2001
6,789,625 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources 236 2001
6,805,195 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas 223 2001
6,820,688 In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio 213 2001
6,866,097 In situ thermal processing of a coal formation to increase a permeability/porosity of the formation 196 2001
2004/0015,023 IN SITU THERMAL PROCESSING OF A HYDROCARBON CONTAINING FORMATION TO PRODUCE A HYDROCARBON CONDENSATE 79 2001
6,782,947 In situ thermal processing of a relatively impermeable formation to increase permeability of the formation 290 2002
 
Chevron Research Company (9)
4,303,126 Arrangement of wells for producing subsurface viscous petroleum 201 1980
4,273,188 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 283 1980
4,381,641 Substoichiometric combustion of low heating value gases 318 1980
4,366,668 Substoichiometric combustion of low heating value gases 298 1981
4,363,361 Substoichiometric combustion of low heating value gases 290 1981
4,460,044 Advancing heated annulus steam drive 211 1982
4,544,478 Process for pyrolyzing hydrocarbonaceous solids to recover volatile hydrocarbons 105 1984
4,696,345 Hasdrive with multiple offset producers 170 1986
4,828,031 In situ chemical stimulation of diatomite formations 229 1987
 
RAMEX SYN-FUELS INTERNATIONAL, INC. (1)
4,928,765 Method and apparatus for shale gas recovery 301 1988
 
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV (1)
4,605,680 Conversion of synthesis gas to diesel fuel and gasoline 287 1985
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
HALLIBURTON ENERGY SERVICES, INC. (1)
7,909,094 Oscillating fluid flow in a wellbore 14 2008
 
Mountain West Energy Inc. (1)
8,205,674 Apparatus, system, and method for in-situ extraction of hydrocarbons 1 2007
 
CUMMINS FILTRATION IP, INC. (1)
8,071,037 Catalytic devices for converting urea to ammonia 3 2008
 
U.S. DEPARTMENT OF ENERGY (1)
7,597,147 Temperature limited heaters using phase transformation of ferromagnetic material 148 2007
 
SHELL OIL COMPANY (168)
7,156,176 Installation and use of removable heaters in a hydrocarbon containing formation 182 2002
8,238,730 High voltage temperature limited heaters 45 2003
8,224,164 Insulated conductor temperature limited heaters 44 2003
8,224,163 Variable frequency temperature limited heaters 0 2003
8,200,072 Temperature limited heaters for heating subsurface formations or wellbores 45 2003
7,219,734 Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation 199 2003
7,121,341 Conductor-in-conduit temperature limited heaters 184 2003
8,355,623 Temperature limited heaters with high power factors 38 2005
7,510,000 Reducing viscosity of oil for production from a hydrocarbon containing formation 140 2005
7,490,665 Variable frequency temperature limited heaters 135 2005
7,481,274 Temperature limited heaters with relatively constant current 128 2005
7,431,076 Temperature limited heaters using modulated DC power 141 2005
7,424,915 Vacuum pumping of conductor-in-conduit heaters 139 2005
7,383,877 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations 134 2005
7,370,704 Triaxial temperature limited heater 141 2005
7,357,180 Inhibiting effects of sloughing in wellbores 154 2005
7,353,872 Start-up of temperature limited heaters using direct current (DC) 137 2005
7,320,364 Inhibiting reflux in a heated well of an in situ conversion system 130 2005
8,224,165 Temperature limited heater utilizing non-ferromagnetic conductor 44 2006
8,070,840 Treatment of gas from an in situ conversion process 46 2006
8,027,571 In situ conversion process systems utilizing wellbores in at least two regions of a formation 72 2006
* 7,986,869 Varying properties along lengths of temperature limited heaters 74 2006
7,942,197 Methods and systems for producing fluid from an in situ conversion process 73 2006
7,860,377 Subsurface connection methods for subsurface heaters 110 2006
7,831,133 Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration 94 2006
7,831,134 Grouped exposed metal heaters 92 2006
7,575,052 In situ conversion process utilizing a closed loop heating system 131 2006
7,575,053 Low temperature monitoring system for subsurface barriers 128 2006
7,546,873 Low temperature barriers for use with in situ processes 111 2006
7,527,094 Double barrier system for an in situ conversion process 153 2006
7,500,528 Low temperature barrier wellbores formed using water flushing 139 2006
7,435,037 Low temperature barriers with heat interceptor wells for in situ processes 150 2006
* 2007/0137,857 Low temperature monitoring system for subsurface barriers 109 2006
8,606,091 Subsurface heaters with low sulfidation rates 13 2006
7,635,025 Cogeneration systems and processes for treating hydrocarbon containing formations 137 2006
7,591,310 Methods of hydrotreating a liquid stream to remove clogging compounds 149 2006
7,584,789 Methods of cracking a crude product to produce additional crude products 158 2006
7,581,589 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 152 2006
7,562,706 Systems and methods for producing hydrocarbons from tar sands formations 157 2006
7,559,367 Temperature limited heater with a conduit substantially electrically isolated from the formation 156 2006
7,559,368 Solution mining systems and methods for treating hydrocarbon containing formations 162 2006
7,556,095 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 177 2006
7,556,096 Varying heating in dawsonite zones in hydrocarbon containing formations 169 2006
7,549,470 Solution mining and heating by oxidation for treating hydrocarbon containing formations 185 2006
7,461,691 In situ recovery from a hydrocarbon containing formation 184 2007
8,083,813 Methods of producing transportation fuel 51 2007
7,912,358 Alternate energy source usage for in situ heat treatment processes 72 2007
7,866,385 Power systems utilizing the heat of produced formation fluid 96 2007
7,793,722 Non-ferromagnetic overburden casing 90 2007
7,785,427 High strength alloys 92 2007
7,683,296 Adjusting alloy compositions for selected properties in temperature limited heaters 107 2007
7,673,786 Welding shield for coupling heaters 108 2007
7,635,023 Time sequenced heating of multiple layers in a hydrocarbon containing formation 176 2007
7,631,689 Sulfur barrier for use with in situ processes for treating formations 142 2007
7,610,962 Sour gas injection for use with in situ heat treatment 129 2007
7,604,052 Compositions produced using an in situ heat treatment process 157 2007
7,533,719 Wellhead with non-ferromagnetic materials 161 2007
7,798,221 In situ recovery from a hydrocarbon containing formation 116 2007
7,845,411 In situ heat treatment process utilizing a closed loop heating system 108 2007
7,841,401 Gas injection to inhibit migration during an in situ heat treatment process 93 2007
7,730,946 Treating tar sands formations with dolomite 100 2007
7,730,945 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 102 2007
7,730,947 Creating fluid injectivity in tar sands formations 104 2007
7,717,171 Moving hydrocarbons through portions of tar sands formations with a fluid 105 2007
7,703,513 Wax barrier for use with in situ processes for treating formations 114 2007
7,681,647 Method of producing drive fluid in situ in tar sands formations 118 2007
7,677,310 Creating and maintaining a gas cap in tar sands formations 100 2007
7,677,314 Method of condensing vaporized water in situ to treat tar sands formations 96 2007
7,673,681 Treating tar sands formations with karsted zones 102 2007
7,644,765 Heating tar sands formations while controlling pressure 108 2007
7,635,024 Heating tar sands formations to visbreaking temperatures 140 2007
7,631,690 Heating hydrocarbon containing formations in a spiral startup staged sequence 150 2007
7,562,707 Heating hydrocarbon containing formations in a line drive staged process 169 2007
7,540,324 Heating hydrocarbon containing formations in a checkerboard pattern staged process 168 2007
7,640,980 Thermal processes for subsurface formations 106 2008
9,181,780 Controlling and assessing pressure conditions during treatment of tar sands formations 0 2008
8,791,396 Floating insulated conductors for heating subsurface formations 4 2008
8,662,175 Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities 20 2008
8,459,359 Treating nahcolite containing formations and saline zones 33 2008
8,381,815 Production from multiple zones of a tar sands formation 43 2008
8,327,681 Wellbore manufacturing processes for in situ heat treatment processes 19 2008
8,042,610 Parallel heater system for subsurface formations 71 2008
7,950,453 Downhole burner systems and methods for heating subsurface formations 90 2008
7,931,086 Heating systems for heating subsurface formations 90 2008
7,849,922 In situ recovery from residually heated sections in a hydrocarbon containing formation 103 2008
7,841,408 In situ heat treatment from multiple layers of a tar sands formation 104 2008
7,841,425 Drilling subsurface wellbores with cutting structures 97 2008
7,832,484 Molten salt as a heat transfer fluid for heating a subsurface formation 96 2008
7,798,220 In situ heat treatment of a tar sands formation after drive process treatment 99 2008
8,536,497 Methods for forming long subsurface heaters 16 2008
8,276,661 Heating subsurface formations by oxidizing fuel on a fuel carrier 44 2008
8,272,455 Methods for forming wellbores in heated formations 15 2008
8,240,774 Solution mining and in situ treatment of nahcolite beds 42 2008
8,196,658 Irregular spacing of heat sources for treating hydrocarbon containing formations 55 2008
8,162,059 Induction heaters used to heat subsurface formations 57 2008
8,146,661 Cryogenic treatment of gas 57 2008
8,146,669 Multi-step heater deployment in a subsurface formation 51 2008
8,113,272 Three-phase heaters with common overburden sections for heating subsurface formations 36 2008
8,011,451 Ranging methods for developing wellbores in subsurface formations 56 2008
7,866,386 In situ oxidation of subsurface formations 102 2008
7,866,388 High temperature methods for forming oxidizer fuel 91 2008
8,627,887 In situ recovery from a hydrocarbon containing formation 21 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 56 2009
8,172,335 Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations 47 2009
8,162,405 Using tunnels for treating subsurface hydrocarbon containing formations 47 2009
8,151,907 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations 49 2009
9,129,728 Systems and methods of forming subsurface wellbores 0 2009
9,051,829 Perforated electrical conductors for treating subsurface formations 0 2009
9,022,118 Double insulated heaters for treating subsurface formations 0 2009
8,881,806 Systems and methods for treating a subsurface formation with electrical conductors 1 2009
8,353,347 Deployment of insulated conductors for treating subsurface formations 23 2009
8,281,861 Circulated heated transfer fluid heating of subsurface hydrocarbon formations 44 2009
8,267,170 Offset barrier wells in subsurface formations 33 2009
8,267,185 Circulated heated transfer fluid systems used to treat a subsurface formation 41 2009
8,261,832 Heating subsurface formations with fluids 49 2009
8,256,512 Movable heaters for treating subsurface hydrocarbon containing formations 31 2009
8,220,539 Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation 61 2009
8,636,323 Mines and tunnels for use in treating subsurface hydrocarbon containing formations 17 2009
8,562,078 Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations 18 2009
7,942,203 Thermal processes for subsurface formations 91 2010
8,851,170 Heater assisted fluid treatment of a subsurface formation 1 2010
8,448,707 Non-conducting heater casings 0 2010
8,434,555 Irregular pattern treatment of a subsurface formation 32 2010
8,327,932 Recovering energy from a subsurface formation 37 2010
8,608,249 In situ thermal processing of an oil shale formation 6 2010
8,192,682 High strength alloys 40 2010
8,225,866 In situ recovery from a hydrocarbon containing formation 43 2010
8,233,782 Grouped exposed metal heaters 34 2010
8,816,203 Compacted coupling joint for coupling insulated conductors 2 2010
8,356,935 Methods for assessing a temperature in a subsurface formation 24 2010
8,257,112 Press-fit coupling joint for joining insulated conductors 27 2010
8,151,880 Methods of making transportation fuel 52 2010
9,127,523 Barrier methods for use in subsurface hydrocarbon formations 1 2011
9,127,538 Methodologies for treatment of hydrocarbon formations using staged pyrolyzation 0 2011
9,033,042 Forming bitumen barriers in subsurface hydrocarbon formations 0 2011
8,967,259 Helical winding of insulated conductor heaters for installation 0 2011
8,939,207 Insulated conductor heaters with semiconductor layers 2 2011
8,833,453 Electrodes for electrical current flow heating of subsurface formations with tapered copper thickness 0 2011
8,820,406 Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore 0 2011
8,739,874 Methods for heating with slots in hydrocarbon formations 0 2011
8,701,768 Methods for treating hydrocarbon formations 8 2011
8,701,769 Methods for treating hydrocarbon formations based on geology 8 2011
8,631,866 Leak detection in circulated fluid systems for heating subsurface formations 18 2011
8,502,120 Insulating blocks and methods for installation in insulated conductor heaters 15 2011
8,485,256 Variable thickness insulated conductors 15 2011
8,230,927 Methods and systems for producing fluid from an in situ conversion process 35 2011
8,579,031 Thermal processes for subsurface formations 0 2011
8,943,686 Compaction of electrical insulation for joining insulated conductors 4 2011
8,857,051 System and method for coupling lead-in conductor to insulated conductor 1 2011
8,732,946 Mechanical compaction of insulator for insulated conductor splices 2 2011
8,586,866 Hydroformed splice for insulated conductors 1 2011
8,586,867 End termination for three-phase insulated conductors 1 2011
9,048,653 Systems for joining insulated conductors 0 2012
9,016,370 Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment 0 2012
8,555,971 Treating tar sands formations with dolomite 18 2012
8,485,252 In situ recovery from a hydrocarbon containing formation 34 2012
8,485,847 Press-fit coupling joint for joining insulated conductors 21 2012
9,309,755 Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations 0 2012
9,226,341 Forming insulated conductors using a final reduction step after heat treating 0 2012
9,080,409 Integral splice for insulated conductors 0 2012
9,080,917 System and methods for using dielectric properties of an insulated conductor in a subsurface formation to assess properties of the insulated conductor 0 2012
8,857,506 Alternate energy source usage methods for in situ heat treatment processes 0 2013
8,789,586 In situ recovery from a hydrocarbon containing formation 0 2013
8,859,942 Insulating blocks and methods for installation in insulated conductor heaters 0 2013
9,337,550 End termination for three-phase insulated conductors 0 2013
9,022,109 Leak detection in circulated fluid systems for heating subsurface formations 1 2014
9,399,905 Leak detection in circulated fluid systems for heating subsurface formations 0 2015
 
COMPANY, SHELL OIL (1)
8,191,630 Creating fluid injectivity in tar sands formations 55 2010
 
CONOCOPHILLIPS COMPANY (1)
* 8,002,034 Recovery of hydrocarbons from oil shale deposits 0 2010
* Cited By Examiner

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