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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SHELL OIL COMPANYHOUSTON, TX2172

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berchenko, Ilya Emil Friendswood, TX 103 19587
de, Rouffignac Eric Pierre Houston, TX 126 22955
Fowler, Thomas David Katy, TX 90 16045
Ryan, Robert Charles Houston, TX 92 16756
Stegemeier, George Leo Houston, TX 103 18288
Vinegar, Harold J Houston, TX 329 54382
Wellington, Scott Lee Belliare, TX 293 30297
Zhang, Etuan Houston, TX 102 18479

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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4,583,046 Apparatus for focused electrode induced polarization logging 277 1983
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4,571,491 Method of imaging the atomic number of a sample 300 1983
4,583,242 Apparatus for positioning a sample in a computerized axial tomographic scanner 279 1983
4,613,754 Tomographic calibration apparatus 291 1983
4,635,197 High resolution tomographic imaging method 272 1983
4,644,283 In-situ method for determining pore size distribution, capillary pressure and permeability 286 1984
4,570,715 Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature 337 1984
4,663,711 Method of analyzing fluid saturation using computerized axial tomography 273 1984
4,572,299 Heater cable installation 312 1984
4,585,066 Well treating process for installing a cable bundle containing strands of changing diameter 283 1984
4,704,514 Heating rate variant elongated electrical resistance heater 334 1985
4,671,102 Method and apparatus for determining distribution of fluids 295 1985
4,626,665 Metal oversheathed electrical resistance heater 317 1985
4,719,423 NMR imaging of materials for transport properties 300 1985
4,728,892 NMR imaging of materials 325 1985
4,640,352 In-situ steam drive oil recovery process 323 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 271 1985
4,658,215 Method for induced polarization logging 276 1986
4,616,705 Mini-well temperature profiling process 292 1986
4,769,602 Determining multiphase saturations by NMR imaging of multiple nuclides 295 1986
4,769,606 Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations 278 1986
4,743,854 In-situ induced polarization method for determining formation permeability 272 1986
4,827,761 Sample holder 289 1987
4,856,341 Apparatus for analysis of failure of material 279 1987
5,306,640 Method for determining preselected properties of a crude oil 277 1987
4,886,118 Conductively heating a subterranean oil shale to create permeability and subsequently produce oil 371 1988
4,866,983 Analytical methods and apparatus for measuring the oil content of sponge core 276 1988
4,884,455 Method for analysis of failure of material employing imaging 277 1989
4,987,368 Nuclear magnetism logging tool using high-temperature superconducting squid detectors 298 1989
5,046,559 Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers 327 1990
5,060,726 Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication 297 1990
5,060,287 Heater utilizing copper-nickel alloy core 328 1990
5,065,818 Subterranean heaters 321 1991
5,189,283 Current to power crossover heater control 291 1991
5,168,927 Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation 278 1991
5,226,961 High temperature wellbore cement slurry 303 1992
5,255,742 Heat injection process 349 1992
5,297,626 Oil recovery process 327 1992
5,236,039 Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale 356 1992
5,366,012 Method of completing an uncased section of a borehole 548 1993
5,391,291 Hydrogenation catalyst and process 286 1993
5,392,854 Oil recovery process 323 1993
5,404,952 Heat injection process and apparatus 308 1993
5,411,089 Heat injection process 300 1993
5,433,271 Heat injection process 294 1993
5,409,071 Method to cement a wellbore 283 1994
5,497,087 NMR logging of natural gas reservoirs 313 1994
5,498,960 NMR logging of natural gas in reservoirs 328 1994
5,541,517 Method for drilling a borehole from one cased borehole to another cased borehole 288 1995
RE35696 Heat injection process 193 1995
5,862,858 Flameless combustor 311 1996
5,899,269 Flameless combustor 325 1996
6,056,057 Heater well method and apparatus 339 1997
6,079,499 Heater well method and apparatus 333 1997
6,094,048 NMR logging of natural gas reservoirs 278 1997
6,023,554 Electrical heater 332 1998
6,102,122 Control of heat injection based on temperature and in-situ stress measurement 300 1998
6,019,172 Flameless combustor 298 1999
6,581,684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids 272 2001
6,588,503 In Situ thermal processing of a coal formation to control product composition 229 2001
6,588,504 In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids 236 2001
6,591,906 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content 256 2001
6,591,907 In situ thermal processing of a coal formation with a selected vitrinite reflectance 228 2001
6,607,033 In Situ thermal processing of a coal formation to produce a condensate 224 2001
6,609,570 In situ thermal processing of a coal formation and ammonia production 224 2001
6,688,387 In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate 250 2001
6,698,515 In situ thermal processing of a coal formation using a relatively slow heating rate 224 2001
6,702,016 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer 238 2001
6,708,758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas 227 2001
6,712,135 In situ thermal processing of a coal formation in reducing environment 223 2001
6,712,136 In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing 278 2001
6,712,137 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material 222 2001
6,715,546 In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore 249 2001
6,715,547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation 227 2001
6,715,548 In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids 227 2001
6,715,549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio 187 2001
6,719,047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment 234 2001
6,722,429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas 247 2001
6,722,430 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio 223 2001
6,722,431 In situ thermal processing of hydrocarbons within a relatively permeable formation 251 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 228 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 223 2001
6,729,395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells 236 2001
6,729,396 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range 221 2001
6,729,397 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance 227 2001
6,729,401 In situ thermal processing of a hydrocarbon containing formation and ammonia production 227 2001
6,732,794 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 228 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 249 2001
6,736,215 In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration 233 2001
6,739,393 In situ thermal processing of a coal formation and tuning production 222 2001
6,739,394 Production of synthesis gas from a hydrocarbon containing formation 230 2001
6,742,587 In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation 222 2001
6,742,588 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content 256 2001
6,742,589 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources 221 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 229 2001
6,745,831 In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation 249 2001
6,745,837 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate 232 2001
6,749,021 In situ thermal processing of a coal formation using a controlled heating rate 225 2001
6,752,210 In situ thermal processing of a coal formation using heat sources positioned within open wellbores 244 2001
6,758,268 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate 227 2001
6,761,216 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas 223 2001
6,763,886 In situ thermal processing of a coal formation with carbon dioxide sequestration 209 2001
6,769,483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources 234 2001
6,769,485 In situ production of synthesis gas from a coal formation through a heat source wellbore 226 2001
6,789,625 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources 226 2001
6,805,195 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas 215 2001
6,820,688 In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio 205 2001
6,866,097 In situ thermal processing of a coal formation to increase a permeability/porosity of the formation 188 2001
2004/0015,023 IN SITU THERMAL PROCESSING OF A HYDROCARBON CONTAINING FORMATION TO PRODUCE A HYDROCARBON CONDENSATE 77 2001
6,782,947 In situ thermal processing of a relatively impermeable formation to increase permeability of the formation 277 2002
 
Chevron Research Company (9)
4,303,126 Arrangement of wells for producing subsurface viscous petroleum 195 1980
4,273,188 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 277 1980
4,381,641 Substoichiometric combustion of low heating value gases 311 1980
4,366,668 Substoichiometric combustion of low heating value gases 292 1981
4,363,361 Substoichiometric combustion of low heating value gases 283 1981
4,460,044 Advancing heated annulus steam drive 204 1982
4,544,478 Process for pyrolyzing hydrocarbonaceous solids to recover volatile hydrocarbons 100 1984
4,696,345 Hasdrive with multiple offset producers 164 1986
4,828,031 In situ chemical stimulation of diatomite formations 221 1987
 
RAMEX SYN-FUELS INTERNATIONAL, INC. (1)
4,928,765 Method and apparatus for shale gas recovery 293 1988
 
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. (1)
4,605,680 Conversion of synthesis gas to diesel fuel and gasoline 281 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 10 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 2 2008
 
ENERGY, UNITED STATES DEPARTMENT OF (1)
7,597,147 Temperature limited heaters using phase transformation of ferromagnetic material 131 2007
 
SHELL OIL COMPANY (159)
7,156,176 Installation and use of removable heaters in a hydrocarbon containing formation 173 2002
8,238,730 High voltage temperature limited heaters 36 2003
8,224,164 Insulated conductor temperature limited heaters 36 2003
8,224,163 Variable frequency temperature limited heaters 0 2003
8,200,072 Temperature limited heaters for heating subsurface formations or wellbores 36 2003
7,219,734 Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation 189 2003
7,121,341 Conductor-in-conduit temperature limited heaters 173 2003
8,355,623 Temperature limited heaters with high power factors 30 2005
7,510,000 Reducing viscosity of oil for production from a hydrocarbon containing formation 129 2005
7,490,665 Variable frequency temperature limited heaters 127 2005
7,481,274 Temperature limited heaters with relatively constant current 120 2005
7,431,076 Temperature limited heaters using modulated DC power 132 2005
7,424,915 Vacuum pumping of conductor-in-conduit heaters 131 2005
7,383,877 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations 126 2005
7,370,704 Triaxial temperature limited heater 133 2005
7,357,180 Inhibiting effects of sloughing in wellbores 143 2005
7,353,872 Start-up of temperature limited heaters using direct current (DC) 127 2005
7,320,364 Inhibiting reflux in a heated well of an in situ conversion system 122 2005
8,224,165 Temperature limited heater utilizing non-ferromagnetic conductor 37 2006
8,070,840 Treatment of gas from an in situ conversion process 41 2006
8,027,571 In situ conversion process systems utilizing wellbores in at least two regions of a formation 63 2006
* 7,986,869 Varying properties along lengths of temperature limited heaters 67 2006
7,942,197 Methods and systems for producing fluid from an in situ conversion process 68 2006
7,860,377 Subsurface connection methods for subsurface heaters 99 2006
7,831,133 Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration 84 2006
7,831,134 Grouped exposed metal heaters 84 2006
7,575,052 In situ conversion process utilizing a closed loop heating system 123 2006
7,575,053 Low temperature monitoring system for subsurface barriers 120 2006
7,546,873 Low temperature barriers for use with in situ processes 101 2006
7,527,094 Double barrier system for an in situ conversion process 139 2006
7,500,528 Low temperature barrier wellbores formed using water flushing 130 2006
7,435,037 Low temperature barriers with heat interceptor wells for in situ processes 142 2006
8,606,091 Subsurface heaters with low sulfidation rates 8 2006
7,635,025 Cogeneration systems and processes for treating hydrocarbon containing formations 121 2006
7,591,310 Methods of hydrotreating a liquid stream to remove clogging compounds 133 2006
7,584,789 Methods of cracking a crude product to produce additional crude products 138 2006
7,581,589 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 136 2006
7,562,706 Systems and methods for producing hydrocarbons from tar sands formations 139 2006
7,559,367 Temperature limited heater with a conduit substantially electrically isolated from the formation 139 2006
7,559,368 Solution mining systems and methods for treating hydrocarbon containing formations 144 2006
7,556,095 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 159 2006
7,556,096 Varying heating in dawsonite zones in hydrocarbon containing formations 151 2006
7,549,470 Solution mining and heating by oxidation for treating hydrocarbon containing formations 165 2006
7,461,691 In situ recovery from a hydrocarbon containing formation 172 2007
8,083,813 Methods of producing transportation fuel 44 2007
7,912,358 Alternate energy source usage for in situ heat treatment processes 68 2007
7,866,385 Power systems utilizing the heat of produced formation fluid 87 2007
7,793,722 Non-ferromagnetic overburden casing 82 2007
7,785,427 High strength alloys 84 2007
7,683,296 Adjusting alloy compositions for selected properties in temperature limited heaters 99 2007
7,673,786 Welding shield for coupling heaters 100 2007
7,635,023 Time sequenced heating of multiple layers in a hydrocarbon containing formation 149 2007
7,631,689 Sulfur barrier for use with in situ processes for treating formations 126 2007
7,610,962 Sour gas injection for use with in situ heat treatment 113 2007
7,604,052 Compositions produced using an in situ heat treatment process 139 2007
7,533,719 Wellhead with non-ferromagnetic materials 143 2007
7,798,221 In situ recovery from a hydrocarbon containing formation 103 2007
7,845,411 In situ heat treatment process utilizing a closed loop heating system 92 2007
7,841,401 Gas injection to inhibit migration during an in situ heat treatment process 83 2007
7,730,946 Treating tar sands formations with dolomite 91 2007
7,730,945 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 92 2007
7,730,947 Creating fluid injectivity in tar sands formations 93 2007
7,717,171 Moving hydrocarbons through portions of tar sands formations with a fluid 95 2007
7,703,513 Wax barrier for use with in situ processes for treating formations 105 2007
7,681,647 Method of producing drive fluid in situ in tar sands formations 103 2007
7,677,310 Creating and maintaining a gas cap in tar sands formations 88 2007
7,677,314 Method of condensing vaporized water in situ to treat tar sands formations 86 2007
7,673,681 Treating tar sands formations with karsted zones 90 2007
7,644,765 Heating tar sands formations while controlling pressure 99 2007
7,635,024 Heating tar sands formations to visbreaking temperatures 122 2007
7,631,690 Heating hydrocarbon containing formations in a spiral startup staged sequence 131 2007
7,562,707 Heating hydrocarbon containing formations in a line drive staged process 147 2007
7,540,324 Heating hydrocarbon containing formations in a checkerboard pattern staged process 148 2007
7,640,980 Thermal processes for subsurface formations 97 2008
8,791,396 Floating insulated conductors for heating subsurface formations 1 2008
8,662,175 Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities 14 2008
8,459,359 Treating nahcolite containing formations and saline zones 26 2008
8,381,815 Production from multiple zones of a tar sands formation 32 2008
8,327,681 Wellbore manufacturing processes for in situ heat treatment processes 13 2008
8,042,610 Parallel heater system for subsurface formations 63 2008
7,950,453 Downhole burner systems and methods for heating subsurface formations 81 2008
7,931,086 Heating systems for heating subsurface formations 81 2008
7,849,922 In situ recovery from residually heated sections in a hydrocarbon containing formation 92 2008
7,841,408 In situ heat treatment from multiple layers of a tar sands formation 92 2008
7,841,425 Drilling subsurface wellbores with cutting structures 87 2008
7,832,484 Molten salt as a heat transfer fluid for heating a subsurface formation 86 2008
7,798,220 In situ heat treatment of a tar sands formation after drive process treatment 86 2008
8,536,497 Methods for forming long subsurface heaters 12 2008
8,276,661 Heating subsurface formations by oxidizing fuel on a fuel carrier 37 2008
8,272,455 Methods for forming wellbores in heated formations 13 2008
8,240,774 Solution mining and in situ treatment of nahcolite beds 36 2008
8,196,658 Irregular spacing of heat sources for treating hydrocarbon containing formations 45 2008
8,162,059 Induction heaters used to heat subsurface formations 48 2008
8,146,661 Cryogenic treatment of gas 50 2008
8,146,669 Multi-step heater deployment in a subsurface formation 44 2008
8,113,272 Three-phase heaters with common overburden sections for heating subsurface formations 29 2008
8,011,451 Ranging methods for developing wellbores in subsurface formations 51 2008
7,866,386 In situ oxidation of subsurface formations 90 2008
7,866,388 High temperature methods for forming oxidizer fuel 82 2008
8,627,887 In situ recovery from a hydrocarbon containing formation 14 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 47 2009
8,172,335 Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations 41 2009
8,162,405 Using tunnels for treating subsurface hydrocarbon containing formations 42 2009
8,151,907 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations 45 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 0 2009
8,353,347 Deployment of insulated conductors for treating subsurface formations 19 2009
8,281,861 Circulated heated transfer fluid heating of subsurface hydrocarbon formations 37 2009
8,267,170 Offset barrier wells in subsurface formations 27 2009
8,267,185 Circulated heated transfer fluid systems used to treat a subsurface formation 33 2009
8,261,832 Heating subsurface formations with fluids 41 2009
8,256,512 Movable heaters for treating subsurface hydrocarbon containing formations 27 2009
8,220,539 Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation 50 2009
8,636,323 Mines and tunnels for use in treating subsurface hydrocarbon containing formations 13 2009
8,562,078 Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations 12 2009
7,942,203 Thermal processes for subsurface formations 83 2010
8,851,170 Heater assisted fluid treatment of a subsurface formation 0 2010
8,448,707 Non-conducting heater casings 0 2010
8,434,555 Irregular pattern treatment of a subsurface formation 26 2010
8,327,932 Recovering energy from a subsurface formation 29 2010
8,608,249 In situ thermal processing of an oil shale formation 4 2010
8,192,682 High strength alloys 35 2010
8,225,866 In situ recovery from a hydrocarbon containing formation 35 2010
8,233,782 Grouped exposed metal heaters 27 2010
8,816,203 Compacted coupling joint for coupling insulated conductors 0 2010
8,356,935 Methods for assessing a temperature in a subsurface formation 19 2010
8,257,112 Press-fit coupling joint for joining insulated conductors 24 2010
8,151,880 Methods of making transportation fuel 45 2010
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 0 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 5 2011
8,701,769 Methods for treating hydrocarbon formations based on geology 5 2011
8,631,866 Leak detection in circulated fluid systems for heating subsurface formations 13 2011
8,502,120 Insulating blocks and methods for installation in insulated conductor heaters 11 2011
8,485,256 Variable thickness insulated conductors 12 2011
8,230,927 Methods and systems for producing fluid from an in situ conversion process 28 2011
8,579,031 Thermal processes for subsurface formations 0 2011
8,943,686 Compaction of electrical insulation for joining insulated conductors 0 2011
8,857,051 System and method for coupling lead-in conductor to insulated conductor 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
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 13 2012
8,485,252 In situ recovery from a hydrocarbon containing formation 26 2012
8,485,847 Press-fit coupling joint for joining insulated conductors 17 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
9,022,109 Leak detection in circulated fluid systems for heating subsurface formations 0 2014
 
COMPANY, SHELL OIL (1)
8,191,630 Creating fluid injectivity in tar sands formations 46 2010
 
CONOCOPHILLIPS COMPANY (1)
* 8,002,034 Recovery of hydrocarbons from oil shale deposits 0 2010
* Cited By Examiner

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