US Patent No: 7,931,086

Number of patents in Portfolio can not be more than 2000

Heating systems for heating subsurface formations

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ALSO PUBLISHED AS: 20090095477
ATTORNEY / AGENT: (SPONSORED)

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Abstract

Methods and systems for heating a subsurface formation are described herein. A heating system for a subsurface formation includes a sealed conduit positioned in an opening in the formation and a heat source. The sealed conduit includes a heat transfer fluid. The heat source provides heat to a portion of the sealed conduit to change phase of the heat transfer fluid from a liquid to a vapor. The vapor in the sealed conduit rises in the sealed conduit, condenses to transfer heat to the formation and returns to the conduit portion as a liquid.

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First Claim

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Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SHELL OIL COMPANYHOUSTON, TX4989

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nguyen, Scott Vinh - 24 774
Vinegar, Harold J Bellaire, TX 539 49750

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SHELL OIL COMPANY (349)
4,359,687 Method and apparatus for determining shaliness and oil saturations in earth formations using induced polarization in the frequency domain 263 1980
4,398,151 Method for correcting an electrical log for the presence of shale in a formation 251 1982
4,583,046 Apparatus for focused electrode induced polarization logging 254 1983
4,499,209 Process for the preparation of a Fischer-Tropsch catalyst and preparation of hydrocarbons from syngas 198 1983
4,540,882 Method of determining drilling fluid invasion 261 1983
4,542,648 Method of correlating a core sample with its original position in a borehole 263 1983
4,571,491 Method of imaging the atomic number of a sample 270 1983
4,583,242 Apparatus for positioning a sample in a computerized axial tomographic scanner 257 1983
4,613,754 Tomographic calibration apparatus 266 1983
4,635,197 High resolution tomographic imaging method 251 1983
4,644,283 In-situ method for determining pore size distribution, capillary pressure and permeability 263 1984
4,570,715 Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature 291 1984
4,663,711 Method of analyzing fluid saturation using computerized axial tomography 252 1984
4,572,299 Heater cable installation 279 1984
4,585,066 Well treating process for installing a cable bundle containing strands of changing diameter 251 1984
4,704,514 Heating rate variant elongated electrical resistance heater 294 1985
4,671,102 Method and apparatus for determining distribution of fluids 272 1985
4,626,665 Metal oversheathed electrical resistance heater 277 1985
4,719,423 NMR imaging of materials for transport properties 278 1985
4,728,892 NMR imaging of materials 302 1985
4,640,352 In-situ steam drive oil recovery process 286 1985
4,730,162 Time-domain induced polarization logging method and apparatus with gated amplification level 250 1985
4,658,215 Method for induced polarization logging 255 1986
4,616,705 Mini-well temperature profiling process 270 1986
4,769,602 Determining multiphase saturations by NMR imaging of multiple nuclides 273 1986
4,769,606 Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations 256 1986
4,743,854 In-situ induced polarization method for determining formation permeability 251 1986
4,827,761 Sample holder 264 1987
4,856,341 Apparatus for analysis of failure of material 258 1987
5,306,640 Method for determining preselected properties of a crude oil 256 1987
4,886,118 Conductively heating a subterranean oil shale to create permeability and subsequently produce oil 311 1988
4,866,983 Analytical methods and apparatus for measuring the oil content of sponge core 254 1988
4,893,504 Method for determining capillary pressure and relative permeability by imaging 180 1988
4,884,455 Method for analysis of failure of material employing imaging 255 1989
4,987,368 Nuclear magnetism logging tool using high-temperature superconducting squid detectors 276 1989
5,042,579 Method and apparatus for producing tar sand deposits containing conductive layers 90 1990
5,046,559 Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers 282 1990
5,060,726 Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication 266 1990
5,060,287 Heater utilizing copper-nickel alloy core 293 1990
5,065,818 Subterranean heaters 286 1991
5,103,909 Profile control in enhanced oil recovery 84 1991
5,189,283 Current to power crossover heater control 260 1991
5,168,927 Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation 254 1991
5,226,961 High temperature wellbore cement slurry 270 1992
5,255,742 Heat injection process 308 1992
5,297,626 Oil recovery process 287 1992
5,236,039 Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale 299 1992
5,366,012 Method of completing an uncased section of a borehole 521 1993
5,391,291 Hydrogenation catalyst and process 258 1993
5,468,372 Process of hydrotreating and/or hydrocracking hydrocarbon streams or tail gas treating sulfur-containing gas streams 119 1993
5,392,854 Oil recovery process 291 1993
5,404,952 Heat injection process and apparatus 277 1993
5,411,089 Heat injection process 263 1993
5,433,271 Heat injection process 266 1993
5,409,071 Method to cement a wellbore 262 1994
5,497,087 NMR logging of natural gas reservoirs 291 1994
5,498,960 NMR logging of natural gas in reservoirs 306 1994
5,541,517 Method for drilling a borehole from one cased borehole to another cased borehole 259 1995
5,862,858 Flameless combustor 272 1996
5,899,269 Flameless combustor 289 1996
5,744,025 Process for hydrotreating metal-contaminated hydrocarbonaceous feedstock 110 1997
6,056,057 Heater well method and apparatus 288 1997
6,079,499 Heater well method and apparatus 283 1997
6,094,048 NMR logging of natural gas reservoirs 256 1997
6,023,554 Electrical heater 289 1998
6,102,122 Control of heat injection based on temperature and in-situ stress measurement 261 1998
6,019,172 Flameless combustor 261 1999
6,218,333 Preparation of a hydrotreating catalyst 109 1999
6,540,018 Method and apparatus for heating a wellbore 134 1999
6,290,841 Hydrotreating process using sulfur activated non-calcined catalyst 109 2000
2002/0036,085 Toroidal choke inductor for wireless communication and control 65 2001
6,679,332 Petroleum well having downhole sensors, communication and power 171 2001
6,715,550 Controllable gas-lift well and valve 130 2001
6,981,553 Controlled downhole chemical injection 126 2001
7,147,059 Use of downhole high pressure gas in a gas-lift well and associated methods 128 2001
7,170,424 Oil well casting electrical power pick-off points 125 2001
7,259,688 Wireless reservoir production control 82 2001
2002/0027,001 In situ thermal processing of a coal formation to produce a selected gas mixture 180 2001
2002/0033,253 In situ thermal processing of a hydrocarbon containing formation using insulated conductor heat sources 183 2001
2002/0036,089 In situ thermal processing of a hydrocarbon containing formation using distributed combustor heat sources 178 2001
2002/0038,069 In situ thermal processing of a coal formation to produce a mixture of olefins, oxygenated hydrocarbons, and aromatic hydrocarbons 178 2001
2002/0040,779 In situ thermal processing of a hydrocarbon containing formation to produce a mixture containing olefins, oxygenated hydrocarbons, and/or aromatic hydrocarbons 184 2001
2002/0040,780 In situ thermal processing of a hydrocarbon containing formation to produce a selected mixture 180 2001
2002/0053,431 In situ thermal processing of a hydrocarbon containing formation to produce a selected ratio of components in a gas 180 2001
2002/0076,212 In situ thermal processing of a hydrocarbon containing formation producing a mixture with oxygenated hydrocarbons 181 2001
2003/0085,034 In situ thermal processing of a coal formation to produce pyrolsis products 179 2001
6,581,684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids 227 2001
6,588,503 In Situ thermal processing of a coal formation to control product composition 196 2001
6,588,504 In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids 204 2001
6,591,906 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content 215 2001
6,591,907 In situ thermal processing of a coal formation with a selected vitrinite reflectance 196 2001
6,607,033 In Situ thermal processing of a coal formation to produce a condensate 192 2001
6,609,570 In situ thermal processing of a coal formation and ammonia production 192 2001
6,688,387 In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate 199 2001
6,698,515 In situ thermal processing of a coal formation using a relatively slow heating rate 192 2001
6,702,016 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer 199 2001
6,708,758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas 196 2001
6,712,135 In situ thermal processing of a coal formation in reducing environment 191 2001
6,712,136 In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing 221 2001
6,712,137 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material 190 2001
6,715,546 In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore 208 2001
6,715,547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation 195 2001
6,715,548 In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids 195 2001
6,715,549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio 165 2001
6,719,047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment 194 2001
6,722,429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas 206 2001
6,722,430 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio 191 2001
6,722,431 In situ thermal processing of hydrocarbons within a relatively permeable formation 209 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 196 2001
6,725,921 In situ thermal processing of a coal formation by controlling a pressure of the formation 153 2001
6,725,928 In situ thermal processing of a coal formation using a distributed combustor 191 2001
6,729,395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells 195 2001
6,729,396 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range 189 2001
6,729,397 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance 195 2001
6,729,401 In situ thermal processing of a hydrocarbon containing formation and ammonia production 195 2001
6,732,794 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 195 2001
6,732,795 In situ thermal processing of a hydrocarbon containing formation to pyrolyze a selected percentage of hydrocarbon material 155 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 215 2001
6,736,215 In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration 200 2001
6,739,393 In situ thermal processing of a coal formation and tuning production 190 2001
6,739,394 Production of synthesis gas from a hydrocarbon containing formation 197 2001
6,742,587 In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation 190 2001
6,742,588 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content 215 2001
6,742,589 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources 189 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 196 2001
6,745,831 In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation 208 2001
6,745,832 Situ thermal processing of a hydrocarbon containing formation to control product composition 170 2001
6,745,837 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate 195 2001
6,749,021 In situ thermal processing of a coal formation using a controlled heating rate 193 2001
6,752,210 In situ thermal processing of a coal formation using heat sources positioned within open wellbores 201 2001
6,758,268 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate 195 2001
6,761,216 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas 191 2001
6,763,886 In situ thermal processing of a coal formation with carbon dioxide sequestration 186 2001
6,769,483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources 194 2001
6,769,485 In situ production of synthesis gas from a coal formation through a heat source wellbore 193 2001
6,789,625 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources 194 2001
6,805,195 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas 183 2001
6,820,688 In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio 172 2001
6,866,097 In situ thermal processing of a coal formation to increase a permeability/porosity of the formation 156 2001
6,871,707 In situ thermal processing of a hydrocarbon containing formation with carbon dioxide sequestration 150 2001
6,877,554 In situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control 148 2001
6,880,635 In situ production of synthesis gas from a coal formation, the synthesis gas having a selected H2 to CO ratio 150 2001
6,889,769 In situ thermal processing of a hydrocarbon containing formation with a selected moisture content 135 2001
6,896,053 In situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources 151 2001
6,902,003 In situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content 135 2001
6,902,004 In situ thermal processing of a hydrocarbon containing formation using a movable heating element 139 2001
6,910,536 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor 137 2001
6,913,078 In Situ thermal processing of hydrocarbons within a relatively impermeable formation 146 2001
6,948,563 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content 137 2001
6,953,087 Thermal processing of a hydrocarbon containing formation to increase a permeability of the formation 147 2001
6,959,761 In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells 134 2001
6,966,372 In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids 139 2001
6,973,967 Situ thermal processing of a coal formation using pressure and/or temperature control 133 2001
6,994,160 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range 143 2001
6,994,168 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio 131 2001
6,997,255 In situ thermal processing of a hydrocarbon containing formation in a reducing environment 132 2001
7,036,583 In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation 145 2001
7,086,468 In situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores 130 2001
7,096,941 In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer 126 2001
7,096,953 In situ thermal processing of a coal formation using a movable heating element 143 2001
6,759,364 Arsenic removal catalyst and method for making same 82 2001
6,821,501 Integrated flameless distributed combustion/steam reforming membrane reactor for hydrogen production and use thereof in zero emissions hybrid power system 88 2002
2003/0079,877 In situ thermal processing of a relatively impermeable formation in a reducing environment 194 2002
2003/0146,002 Removable heat sources for in situ thermal processing of an oil shale formation 191 2002
6,782,947 In situ thermal processing of a relatively impermeable formation to increase permeability of the formation 229 2002
6,877,555 In situ thermal processing of an oil shale formation while inhibiting coking 163 2002
6,880,633 In situ thermal processing of an oil shale formation to produce a desired product 178 2002
6,915,850 In situ thermal processing of an oil shale formation having permeable and impermeable sections 139 2002
6,918,442 In situ thermal processing of an oil shale formation in a reducing environment 137 2002
6,918,443 In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range 153 2002
6,923,257 In situ thermal processing of an oil shale formation to produce a condensate 155 2002
6,929,067 Heat sources with conductive material for in situ thermal processing of an oil shale formation 150 2002
6,948,562 Production of a blending agent using an in situ thermal process in a relatively permeable formation 164 2002
6,951,247 In situ thermal processing of an oil shale formation using horizontal heat sources 167 2002
6,964,300 In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore 161 2002
6,966,374 In situ thermal recovery from a relatively permeable formation using gas to increase mobility 143 2002
6,981,548 In situ thermal recovery from a relatively permeable formation 140 2002
6,991,032 In situ thermal processing of an oil shale formation using a pattern of heat sources 148 2002
6,994,169 In situ thermal processing of an oil shale formation with a selected property 138 2002
6,997,518 In situ thermal processing and solution mining of an oil shale formation 152 2002
7,004,247 Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation 166 2002
7,004,251 In situ thermal processing and remediation of an oil shale formation 164 2002
7,032,660 In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation 159 2002
7,040,397 Thermal processing of an oil shale formation to increase permeability of the formation 150 2002
7,040,398 In situ thermal processing of a relatively permeable formation in a reducing environment 135 2002
7,040,399 In situ thermal processing of an oil shale formation using a controlled heating rate 149 2002
7,040,400 In situ thermal processing of a relatively impermeable formation using an open wellbore 158 2002
7,051,807 In situ thermal recovery from a relatively permeable formation with quality control 92 2002
7,055,600 In situ thermal recovery from a relatively permeable formation with controlled production rate 149 2002
7,096,942 In situ thermal processing of a relatively permeable formation while controlling pressure 153 2002
2003/0196,789 In situ thermal processing of a hydrocarbon containing formation and upgrading of produced fluids prior to further treatment 200 2002
2003/0201,098 In situ recovery from a hydrocarbon containing formation using one or more simulations 199 2002
6,932,155 In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well 158 2002
6,969,123 Upgrading and mining of coal 167 2002
6,991,045 Forming openings in a hydrocarbon containing formation using magnetic tracking 140 2002
7,011,154 In situ recovery from a kerogen and liquid hydrocarbon containing formation 162 2002
7,051,808 Seismic monitoring of in situ conversion in a hydrocarbon containing formation 77 2002
7,063,145 Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations 156 2002
7,066,254 In situ thermal processing of a tar sands formation 188 2002
7,066,257 In situ recovery from lean and rich zones in a hydrocarbon containing formation 141 2002
7,077,198 In situ recovery from a hydrocarbon containing formation using barriers 172 2002
7,077,199 In situ thermal processing of an oil reservoir formation 161 2002
7,086,465 In situ production of a blending agent from a hydrocarbon containing formation 138 2002
7,090,013 In situ thermal processing of a hydrocarbon containing formation to produce heated fluids 159 2002
7,100,994 Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation 150 2002
7,104,319 In situ thermal processing of a heavy oil diatomite formation 155 2002
7,114,566 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor 165 2002
7,128,153 Treatment of a hydrocarbon containing formation after heating 146 2002
7,156,176 Installation and use of removable heaters in a hydrocarbon containing formation 141 2002
7,165,615 In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden 156 2002
7,055,602 Method and composition for enhanced hydrocarbons recovery 79 2003
6,923,258 In situ thermal processsing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 147 2003
6,958,704 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters 142 2003
2004/0140,096 Insulated conductor temperature limited heaters 153 2003
2004/0144,540 High voltage temperature limited heaters 144 2003
2004/0144,541 Forming wellbores using acoustic methods 113 2003
2004/0146,288 Temperature limited heaters for heating subsurface formations or wellbores 159 2003
2005/0006,097 Variable frequency temperature limited heaters 154 2003
7,073,578 Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation 170 2003
7,121,341 Conductor-in-conduit temperature limited heaters 137 2003
7,219,734 Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation 147 2003
7,121,342 Thermal processes for subsurface formations 188 2004
2005/0133,405 Systems and methods of producing a crude product 70 2004
2005/0133,414 Systems, methods, and catalysts for producing a crude product 80 2004
2005/0269,093 Variable frequency temperature limited heaters 108 2005
2005/0269,313 Temperature limited heaters with high power factors 129 2005
2006/0005,968 Temperature limited heaters with relatively constant current 94 2005
2006/0289,536 Subsurface electrical heaters using nitride insulation 128 2005
7,320,364 Inhibiting reflux in a heated well of an in situ conversion system 87 2005
7,357,180 Inhibiting effects of sloughing in wellbores 101 2005
7,370,704 Triaxial temperature limited heater 101 2005
7,383,877 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations 95 2005
7,424,915 Vacuum pumping of conductor-in-conduit heaters 100 2005
7,431,076 Temperature limited heaters using modulated DC power 101 2005
7,481,274 Temperature limited heaters with relatively constant current 89 2005
7,490,665 Variable frequency temperature limited heaters 94 2005
7,510,000 Reducing viscosity of oil for production from a hydrocarbon containing formation 91 2005
2006/0178,546 Method and apparatus for making a middle distillate product and lower olefins from a hydrocarbon feedstock 69 2006
2006/0191,820 Hydrocarbon cracking process for converting gas oil preferentially to middle distillate and lower olefins 68 2006
7,225,866 In situ thermal processing of an oil shale formation using a pattern of heat sources 146 2006
2006/0231,465 Systems, methods, and catalysts for producing a crude product 82 2006
7,426,959 Systems and methods for producing oil and/or gas 36 2006
2007/0045,266 In situ conversion process utilizing a closed loop heating system 129 2006
2007/0045,267 Subsurface connection methods for subsurface heaters 139 2006
2007/0045,268 Varying properties along lengths of temperature limited heaters 135 2006
2007/0108,200 Low temperature barrier wellbores formed using water flushing 114 2006
2007/0108,201 Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration 123 2006
2007/0119,098 Treatment of gas from an in situ conversion process 121 2006
2007/0133,959 Grouped exposed metal heaters 101 2006
2007/0133,960 In situ conversion process systems utilizing wellbores in at least two regions of a formation 115 2006
2007/0137,856 Double barrier system for an in situ conversion process 86 2006
2007/0137,857 Low temperature monitoring system for subsurface barriers 84 2006
2007/0144,732 Low temperature barriers for use with in situ processes 103 2006
2008/0217,321 Temperature limited heater utilizing non-ferromagnetic conductor 115 2006
7,435,037 Low temperature barriers with heat interceptor wells for in situ processes 111 2006
7,500,528 Low temperature barrier wellbores formed using water flushing 100 2006
7,527,094 Double barrier system for an in situ conversion process 93 2006
7,575,052 In situ conversion process utilizing a closed loop heating system 88 2006
7,575,053 Low temperature monitoring system for subsurface barriers 88 2006
2006/0289,340 METHODS FOR PRODUCING A TOTAL PRODUCT IN THE PRESENCE OF SULFUR 81 2006
2007/0000,810 METHOD FOR PRODUCING A CRUDE PRODUCT WITH REDUCED TAN 87 2006
7,360,588 Thermal processes for subsurface formations 93 2006
2007/0095,536 Cogeneration systems and processes for treating hydrocarbon containing formations 122 2006
2007/0095,537 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 125 2006
2007/0125,533 Methods of hydrotreating a liquid stream to remove clogging compounds 84 2006
2007/0127,897 Subsurface heaters with low sulfidation rates 124 2006
2007/0131,415 Solution mining and heating by oxidation for treating hydrocarbon containing formations 121 2006
2007/0131,419 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 83 2006
2007/0131,420 Methods of cracking a crude product to produce additional crude products 81 2006
2007/0131,428 Methods of filtering a liquid stream produced from an in situ heat treatment process 118 2006
2007/0221,377 Solution mining systems and methods for treating hydrocarbon containing formations 87 2006
2008/0017,370 Temperature limited heater with a conduit substantially electrically isolated from the formation 63 2006
2008/0107,577 Varying heating in dawsonite zones in hydrocarbon containing formations 53 2006
7,549,470 Solution mining and heating by oxidation for treating hydrocarbon containing formations 111 2006
7,556,095 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 112 2006
7,556,096 Varying heating in dawsonite zones in hydrocarbon containing formations 104 2006
7,559,367 Temperature limited heater with a conduit substantially electrically isolated from the formation 101 2006
7,559,368 Solution mining systems and methods for treating hydrocarbon containing formations 99 2006
7,562,706 Systems and methods for producing hydrocarbons from tar sands formations 99 2006
7,581,589 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 98 2006
7,584,789 Methods of cracking a crude product to produce additional crude products 93 2006
7,591,310 Methods of hydrotreating a liquid stream to remove clogging compounds 95 2006
7,635,025 Cogeneration systems and processes for treating hydrocarbon containing formations 84 2006
7,461,691 In situ recovery from a hydrocarbon containing formation 124 2007
2007/0284,108 Compositions produced using an in situ heat treatment process 71 2007
2007/0289,733 Wellhead with non-ferromagnetic materials 65 2007
2008/0017,380 Non-ferromagnetic overburden casing 79 2007
2008/0035,346 Methods of producing transportation fuel 74 2007
2008/0035,347 Adjusting alloy compositions for selected properties in temperature limited heaters 70 2007
2008/0035,705 Welding shield for coupling heaters 72 2007
2008/0038,144 High strength alloys 69 2007
2008/0173,442 Sulfur barrier for use with in situ processes for treating formations 94 2007
2008/0173,444 Alternate energy source usage for in situ heat treatment processes 104 2007
2008/0173,449 Sour gas injection for use with in situ heat treatment 73 2007
2008/0174,115 Power systems utilizing the heat of produced formation fluid 104 2007
7,533,719 Wellhead with non-ferromagnetic materials 103 2007
7,604,052 Compositions produced using an in situ heat treatment process 93 2007
7,610,962 Sour gas injection for use with in situ heat treatment 76 2007
7,631,689 Sulfur barrier for use with in situ processes for treating formations 87 2007
7,635,023 Time sequenced heating of multiple layers in a hydrocarbon containing formation 90 2007
7,673,786 Welding shield for coupling heaters 71 2007
7,683,296 Adjusting alloy compositions for selected properties in temperature limited heaters 70 2007
2009/0101,346 In situ recovery from a hydrocarbon containing formation 82 2007
7,735,935 In situ thermal processing of an oil shale formation containing carbonate minerals 64 2007
2008/0128,134 Producing drive fluid in situ in tar sands formations 93 2007
2008/0135,244 Heating hydrocarbon containing formations in a line drive staged process 95 2007
2008/0135,253 Treating tar sands formations with karsted zones 99 2007
2008/0135,254 In situ heat treatment process utilizing a closed loop heating system 92 2007
2008/0142,216 Treating tar sands formations with dolomite 103 2007
2008/0142,217 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 97 2007
2008/0185,147 Wax barrier for use with in situ processes for treating formations 88 2007
2008/0217,003 Gas injection to inhibit migration during an in situ heat treatment process 96 2007
2008/0217,004 Heating hydrocarbon containing formations in a checkerboard pattern staged process 83 2007
2008/0217,015 Heating hydrocarbon containing formations in a spiral startup staged sequence 87 2007
2008/0217,016 Creating fluid injectivity in tar sands formations 111 2007
2008/0236,831 Condensing vaporized water in situ to treat tar sands formations 102 2007
2008/0277,113 Heating tar sands formations while controlling pressure 99 2007
2008/0283,246 Heating tar sands formations to visbreaking temperatures 79 2007
2009/0014,180 Moving hydrocarbons through portions of tar sands formations with a fluid 106 2007
2009/0014,181 Creating and maintaining a gas cap in tar sands formations 105 2007
7,540,324 Heating hydrocarbon containing formations in a checkerboard pattern staged process 103 2007
7,562,707 Heating hydrocarbon containing formations in a line drive staged process 100 2007
7,631,690 Heating hydrocarbon containing formations in a spiral startup staged sequence 87 2007
7,635,024 Heating tar sands formations to visbreaking temperatures 85 2007
7,644,765 Heating tar sands formations while controlling pressure 68 2007
7,673,681 Treating tar sands formations with karsted zones 58 2007
7,677,310 Creating and maintaining a gas cap in tar sands formations 56 2007
7,677,314 Method of condensing vaporized water in situ to treat tar sands formations 55 2007
7,681,647 Method of producing drive fluid in situ in tar sands formations 70 2007
7,703,513 Wax barrier for use with in situ processes for treating formations 72 2007
7,717,171 Moving hydrocarbons through portions of tar sands formations with a fluid 63 2007
7,730,945 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 61 2007
7,730,946 Treating tar sands formations with dolomite 60 2007
7,730,947 Creating fluid injectivity in tar sands formations 61 2007
7,640,980 Thermal processes for subsurface formations 67 2008
2009/0084,547 DOWNHOLE BURNER SYSTEMS AND METHODS FOR HEATING SUBSURFACE FORMATIONS 78 2008
2009/0090,158 WELLBORE MANUFACTURING PROCESSES FOR IN SITU HEAT TREATMENT PROCESSES 90 2008
2009/0095,476 MOLTEN SALT AS A HEAT TRANSFER FLUID FOR HEATING A SUBSURFACE FORMATION 73 2008
2009/0095,477 HEATING SYSTEMS FOR HEATING SUBSURFACE FORMATIONS 78 2008
2009/0095,478 VARYING PROPERTIES OF IN SITU HEAT TREATMENT OF A TAR SANDS FORMATION BASED ON ASSESSED VISCOSITIES 90 2008
2009/0095,479 PRODUCTION FROM MULTIPLE ZONES OF A TAR SANDS FORMATION 89 2008
2009/0126,929 TREATING NAHCOLITE CONTAINING FORMATIONS AND SALINE ZONES 84 2008
2009/0189,617 CONTINUOUS SUBSURFACE HEATER TEMPERATURE MEASUREMENT 89 2008
2009/0194,269 THREE-PHASE HEATERS WITH COMMON OVERBURDEN SECTIONS FOR HEATING SUBSURFACE FORMATIONS 85 2008
2009/0194,333 RANGING METHODS FOR DEVELOPING WELLBORES IN SUBSURFACE FORMATIONS 84 2008
2009/0200,023 HEATING SUBSURFACE FORMATIONS BY OXIDIZING FUEL ON A FUEL CARRIER 84 2008
2009/0200,854 SOLUTION MINING AND IN SITU TREATMENT OF NAHCOLITE BEDS 85 2008
2010/0089,584 DOUBLE INSULATED HEATERS FOR TREATING SUBSURFACE FORMATIONS 40 2009
2010/0089,586 MOVABLE HEATERS FOR TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS 37 2009
 
Mobil Oil Corporation (24)
4,258,955 Process for in-situ leaching of uranium 60 1978
4,380,930 System for transmitting ultrasonic energy through core samples 171 1981
4,368,114 Octane and total yield improvement in catalytic cracking 118 1981
4,410,042 In-situ combustion method for recovery of heavy oil utilizing oxygen and carbon dioxide as initial oxidant 180 1981
4,549,396 Conversion of coal to electricity 259 1982
4,530,401 Method for maximum in-situ visbreaking of heavy oil 253 1982
4,429,745 Oil recovery method 189 1982
4,458,767 Method for directionally drilling a first well to intersect a second well 213 1982
4,598,392 Vibratory signal sweep seismic prospecting method and apparatus 151 1983
4,573,530 In-situ gasification of tar sands utilizing a combustible gas 247 1983
4,698,149 Enhanced recovery of hydrocarbonaceous fluids oil shale 179 1983
4,598,772 Method for operating a production well in an oxygen driven in-situ combustion oil recovery process 179 1983
4,577,690 Method of using seismic data to monitor firefloods 142 1984
4,598,770 Thermal recovery method for viscous oil 282 1984
4,669,542 Simultaneous recovery of crude from multiple zones in a reservoir 254 1984
4,766,958 Method of recovering viscous oil from reservoirs with multiple horizontal zones 167 1987
4,787,452 Disposal of produced formation fines during oil recovery 266 1987
4,982,786 Use of CO.sub.2 /steam to enhance floods in horizontal wellbores 241 1989
5,211,230 Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion 275 1992
5,339,904 Oil recovery optimization using a well having both horizontal and vertical sections 248 1992
5,377,756 Method for producing low permeability reservoirs using a single well 200 1993
5,411,086 Oil recovery by enhanced imbitition in low permeability reservoirs 165 1993
5,415,231 Method for producing low permeability reservoirs using steam 257 1994
5,431,224 Method of thermal stimulation for recovery of hydrocarbons 265 1994
 
AMOCO CORPORATION (16)
4,184,548 Method for determining the position and inclination of a flame front during in situ combustion of an oil shale retort 141 1978
4,274,487 Indirect thermal stimulation of production wells 262 1979
4,537,252 Method of underground conversion of coal 254 1984
4,662,439 Method of underground conversion of coal 254 1985
4,662,443 Combination air-blown and oxygen-blown underground coal gasification process 257 1985
4,756,367 Method for producing natural gas from a coal seam 245 1987
5,059,303 Oil stabilization 186 1989
5,133,406 Generating oxygen-depleted air useful for increasing methane production 102 1991
5,388,640 Method for producing methane-containing gaseous mixtures 260 1993
5,388,641 Method for reducing the inert gas fraction in methane-containing gaseous mixtures obtained from underground formations 257 1993
5,388,642 Coalbed methane recovery using membrane separation of oxygen from air 257 1993
5,388,643 Coalbed methane recovery using pressure swing adsorption separation 254 1993
5,388,645 Method for producing methane-containing gaseous mixtures 260 1993
5,439,054 Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation 261 1994
5,454,666 Method for disposing of unwanted gaseous fluid components within a solid carbonaceous subterranean formation 266 1994
5,566,755 Method for recovering methane from a solid carbonaceous subterranean formation 178 1995
 
Texaco Inc. (12)
4,524,826 Method of heating an oil shale formation 269 1982
4,592,423 Hydrocarbon stratum retorting means and method 253 1984
4,577,691 Method and apparatus for producing viscous hydrocarbons from a subterranean formation 104 1984
4,576,231 Method and apparatus for combating encroachment by in situ treated formations 272 1984
4,682,652 Producing hydrocarbons through successively perforated intervals of a horizontal well between two vertical wells 260 1986
5,102,551 Membrane process for treating a mixture containing dewaxed oil and dewaxing solvent 69 1991
5,093,002 Membrane process for treating a mixture containing dewaxed oil and dewaxing solvent 69 1991
5,199,490 Formation treating 75 1991
5,284,206 Formation treating 68 1992
5,632,336 Method for improving injectivity of fluids in oil reservoirs 255 1994
5,571,403 Process for extracting hydrocarbons from diatomite 170 1995
5,826,655 Method for enhanced recovery of viscous oil deposits 181 1996
 
Chevron Research Company (11)
4,299,086 Utilization of energy obtained by substoichiometric combustion of low heating value gases 266 1978
4,186,801 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 260 1978
4,250,962 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 254 1979
4,303,126 Arrangement of wells for producing subsurface viscous petroleum 173 1980
4,273,188 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 255 1980
4,381,641 Substoichiometric combustion of low heating value gases 286 1980
4,366,668 Substoichiometric combustion of low heating value gases 270 1981
4,363,361 Substoichiometric combustion of low heating value gases 261 1981
4,551,226 Heat exchanger antifoulant 76 1982
4,460,044 Advancing heated annulus steam drive 184 1982
4,828,031 In situ chemical stimulation of diatomite formations 186 1987
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (9)
4,984,594 Vacuum method for removing soil contamination utilizing surface electrical heating 309 1989
5,190,405 Vacuum method for removing soil contaminants utilizing thermal conduction heating 292 1990
5,229,583 Surface heating blanket for soil remediation 279 1992
5,318,116 Vacuum method for removing soil contaminants utilizing thermal conduction heating 297 1993
5,553,189 Radiant plate heater for treatment of contaminated surfaces 273 1994
5,656,239 Method for recovering contaminants from soil utilizing electrical heating 276 1995
6,102,622 Remediation method 272 1998
5,997,214 Remediation method 270 1998
6,485,232 Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system 253 2000
 
NOVELIS INC. (9)
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
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
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 2001
 
BAKER HUGHES INCORPORATED (8)
5,173,213 Corrosion and anti-foulant composition and method of use 79 1991
5,782,301 Oil well heater cable 100 1996
6,088,294 Drilling system with an acoustic measurement-while-driving system for determining parameters of interest and controlling the drilling direction 187 1997
6,084,826 Measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers 155 1998
6,078,868 Reference signal encoding for seismic while drilling measurement 130 1999
6,427,124 Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundaries 135 1999
6,588,266 Monitoring of downhole parameters and tools utilizing fiber optics 141 2001
6,585,046 Live well heater cable 144 2001
 
AKAMAI TECHNOLOGIES, INC. (7)
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 14 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 14 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 14 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 14 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 14 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 14 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 14 2009
 
ATLANTIC RICHFIELD COMPANY (7)
4,399,866 Method for controlling the flow of subterranean water into a selected zone in a permeable subterranean carbonaceous deposit 193 1981
4,489,782 Viscous oil production using electrical current heating and lateral drain holes 280 1983
4,597,444 Method for excavating a large diameter shaft into the earth and at least partially through an oil-bearing formation 180 1984
4,662,437 Electrically stimulated well production system with flexible tubing conductor 151 1985
4,640,353 Electrode well and method of completion 198 1986
4,651,825 Enhanced well production 260 1986
4,744,245 Acoustic measurements in rock formations for determining fracture orientation 149 1986
 
EXXONMOBIL UPSTREAM RESEARCH COMPANY (6)
5,339,897 Recovery and upgrading of hydrocarbon utilizing in situ combustion and horizontal wells 312 1992
6,918,444 Method for production of hydrocarbons from organic-rich rock 97 2001
6,755,251 Downhole gas separation method and system 81 2002
7,128,150 Acid gas disposal method 80 2002
7,331,385 Methods of treating a subterranean formation to convert organic matter into producible hydrocarbons 74 2004
2007/0246,994 In situ co-development of oil shale with mineral recovery 84 2007
 
Standard Oil Company (Indiana) (6)
4,265,307 Shale oil recovery 247 1978
4,353,418 In situ retorting of oil shale 266 1980
4,401,163 Modified in situ retorting of oil shale 180 1980
4,425,967 Ignition procedure and process for in situ retorting of oil shale 141 1981
4,457,374 Transient response process for detecting in situ retorting conditions 233 1982
4,552,214 Pulsed in situ retorting in an array of oil shale retorts 174 1984
 
UENTECH CORPORATION (6)
4,821,798 Heating system for rathole oil well 130 1987
4,793,409 Method and apparatus for forming an insulated oil well casing 90 1987
5,070,533 Robust electrical heating systems for mineral wells 69 1990
5,099,918 Power sources for downhole electrical heating 260 1991
5,621,844 Electrical heating of mineral well deposits using downhole impedance transformation networks 288 1995
5,713,415 Low flux leakage cables and cable terminations for A.C. electrical heating of oil deposits 268 1996
 
WORLD ENERGY SYSTEMS, INC. (6)
4,199,024 Multistage gas generator 136 1979
4,597,441 Recovery of oil by in situ hydrogenation 289 1984
4,691,771 Recovery of oil by in-situ combustion followed by in-situ hydrogenation 265 1986
6,016,867 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking 280 1998
6,016,868 Production of synthetic crude oil from heavy hydrocarbons recovered by in situ hydrovisbreaking 292 1998
6,328,104 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking 283 2000
 
DELAWARE CAPITAL FORMATION, INC. (5)
4,717,814 Slotted autoregulating heater 156 1984
4,623,401 Heat treatment with an autoregulating heater 185 1986
4,814,587 High power self-regulating heater 143 1986
4,794,226 Self-regulating porous heater device 130 1986
5,073,625 Self-regulating porous heating device 134 1988
 
HALLIBURTON ENERGY SERVICES, INC. (5)
5,899,958 Logging while drilling borehole imaging and dipmeter device 212 1995
5,926,437 Method and apparatus for seismic exploration 133 1997
6,951,250 Sealant compositions and methods of using the same to isolate a subterranean zone from a disposal well 57 2003
7,147,057 Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore 91 2003
7,337,841 Casing comprising stress-absorbing materials and associated methods of use 36 2004
 
LIFESHIELD SCIENCES LLC (5)
2004/0158,312 Braided endoluminal device having tapered filaments 2 2003
2004/0158,312 Braided endoluminal device having tapered filaments 2 2003
2004/0158,312 Braided endoluminal device having tapered filaments 2 2003
2004/0158,312 Braided endoluminal device having tapered filaments 2 2003
2004/0158,312 Braided endoluminal device having tapered filaments 2 2003
 
UOP LLC (5)
4,310,440 Crystalline metallophosphate compositions 444 1980
4,440,871 Crystalline silicoaluminophosphates 714 1982
4,500,651 Titanium-containing molecular sieves 171 1983
4,686,029 Dewaxing catalysts and processes employing titanoaluminosilicate molecular sieves 78 1985
5,802,870 Sorption cooling process and system 74 1997
 
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 284 1987
4,983,319 Preparation of low-viscosity improved stable crude oil transport emulsions 267 1988
5,340,467 Process for recovery of hydrocarbons and rejection of sand 297 1991
5,316,664 Process for recovery of hydrocarbons and rejection of sand 295 1992
 
CHEVRON RESEARCH AND TECHNOLOGY COMPANY (4)
5,054,551 In-situ heated annulus refining process 190 1990
5,085,276 Production of oil from low permeability formations by sequential steam fracturing 192 1990
5,145,003 Method for in-situ heated annulus refining process 202 1991
5,305,829 Oil production from diatomite formations by fracture steamdrive 190 1992
 
ENERGY, UNITED STATES DEPARTMENT OF (4)
4,385,661 Downhole steam generator with improved preheating, combustion and protection features 147 1981
2008/0035,348 Temperature limited heaters using phase transformation of ferromagnetic material 54 2007
7,597,147 Temperature limited heaters using phase transformation of ferromagnetic material 93 2007
2009/0078,461 DRILLING SUBSURFACE WELLBORES WITH CUTTING STRUCTURES 74 2008
 
Exxon Research and Engineering Company (4)
4,458,757 In situ shale-oil recovery process 245 1983
5,275,726 Spiral wound element for separation 86 1992
5,935,421 Continuous in-situ combination process for upgrading heavy oil 201 1996
6,110,358 Process for manufacturing improved process oils using extraction of hydrotreated distillates 176 1999
 
IIT Research Institute (4)
RE30738 Apparatus and method for in situ heat processing of hydrocarbonaceous formations 295 1980
4,498,535 Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations with a controlled parameter line 250 1982
4,545,435 Conduction heating of hydrocarbonaceous formations 173 1983
5,621,845 Apparatus for electrode heating of earth for recovery of subsurface volatiles and semi-volatiles 124 1995
 
ALBERTA INNOVATES - ENERGY AND ENVIRONMENT SOLUTIONS (3)
5,456,315 Horizontal well gravity drainage combustion process for oil recovery 198 1994
6,026,914 Wellbore profiling system 152 1998
6,257,334 Steam-assisted gravity drainage heavy oil recovery process 109 1999
 
Cities Service Company (3)
4,216,079 Emulsion breaking with surfactant recovery 96 1979
4,412,585 Electrothermal process for recovering hydrocarbons 256 1982
4,501,445 Method of in-situ hydrogenation of carbonaceous material 262 1983
 
Indugas, Inc. (3)
4,913,065 In situ thermal waste disposal system 188 1989
5,020,596 Enhanced oil recovery system with a radiant tube heater 248 1990
5,082,055 Gas fired radiant tube heater 264 1991
 
INSTITUT FRANCAIS DU PETROLE (3)
5,217,075 Method and device for carrying out interventions in wells where high temperatures prevail 63 1991
5,363,094 Stationary system for the active and/or passive monitoring of an underground deposit 193 1992
6,605,566 Supported bimetallic catalyst with a strong interaction between a group VIII metal and tin, and its use in a catalytic reforming process 57 2001
 
TUBARC TECHNOLOGIES, LLC (3)
6,766,817 Fluid conduction utilizing a reversible unsaturated siphon with tubarc porosity action 677 2002
6,918,404 Irrigation and drainage based on hydrodynamic unsaturated fluid flow 412 2004
7,066,586 Ink refill and recharging system 397 2004
 
TYCO INTERNATIONAL LTD., A CORPORATION OF BERMUDA (3)
4,698,583 Method of monitoring a heater for faults 135 1985
4,849,611 Self-regulating heater employing reactive components 144 1985
4,785,163 Method for monitoring a heater 129 1987
 
UNIVERSITY OF UTAH (3)
4,324,292 Process for recovering products from oil shale 254 1980
4,396,062 Apparatus and method for time-domain tracking of high-speed chemical reactions 279 1980
4,409,090 Process for recovering products from tar sand 267 1982
 
Z-SEIS CORPORATION (3)
6,269,310 System for eliminating headwaves in a tomographic process 128 1999
6,193,010 System for generating a seismic signal in a borehole 130 1999
6,196,350 Apparatus and method for attenuating tube waves in a borehole 127 1999
 
EDWARDS DEVELOPMENT CORP., A CORP OF NV. (2)
4,817,711 System for recovery of petroleum from petroleum impregnated media 302 1987
4,912,971 System for recovery of petroleum from petroleum impregnated media 194 1989
 
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 254 1986
5,554,453 Carbonate fuel cell system with thermally integrated gasification 280 1995
 
EOR INTERNATIONAL, INC. (2)
4,524,827 Single well stimulation for the recovery of liquid hydrocarbons from subsurface formations 279 1983
5,751,895 Selective excitation of heating electrodes for oil wells 247 1996
 
HALLIBURTON COMPANY (2)
4,445,574 Continuous borehole formed horizontally through a hydrocarbon producing formation 174 1982
4,808,925 Three magnet casing collar locator 174 1987
 
LOS ALAMOS NATIONAL SECURITY, LLC (2)
6,910,537 Canister, sealing method and composition for sealing a borehole 63 2003
2008/0006,410 Kerogen Extraction From Subterranean Oil Shale Resources 67 2007
 
MASTER CORPORATION, P.O. BOX 585, AUBURN, IN 46706 (2)
RE39077 Acid gas disposal 74 2002
RE39244 Acid gas disposal 72 2004
 
MCDERMOTT TECHNOLOGY, INC. (2)
5,760,307 EMAT probe and technique for weld inspection 181 1995
6,155,117 Edge detection and seam tracking with EMATs 175 1999
 
METCAL, INC. (2)
4,752,673 Autoregulating heater 153 1982
4,695,713 Autoregulating, electrically shielded heater 178 1983
 
Occidental Oil Shale, Inc. (2)
4,437,519 Reduction of shale oil pour point 173 1981
4,605,489 Upgrading shale oil by a combination process 188 1985
 
OSUM OIL SANDS CORP. (2)
2007/0044,957 Method for underground recovery of hydrocarbons 49 2006
2008/0078,552 METHOD OF HEATING HYDROCARBONS 51 2007
 
Phillips Petroleum Company (2)
4,474,238 Method and apparatus for treatment of subsurface formations 186 1982
4,885,080 Process for demetallizing and desulfurizing heavy crude oil 190 1988
 
PRATS, MICHAEL (2)
5,984,010 Hydrocarbon recovery systems and methods 255 1997
6,173,775 Systems and methods for hydrocarbon recovery 255 1999
 
PRESSSOL LTD. (2)
6,854,534 Two string drilling system using coil tubing 127 2003
7,204,327 Reverse circulation directional and horizontal drilling using concentric drill string 115 2003
 
PRODUCTION TECHNOLOGIES INTERNATIONAL, INC. (2)
4,716,960 Method and system for introducing electric current into a well 300 1986
5,207,273 Method and apparatus for pumping wells 269 1990
 
Raychem Corporation (2)
4,417,782 Fiber optic temperature sensing 147 1980
4,701,587 Shielded heating element having intrinsic temperature control 183 1981
 
RAYCHEM LIMITED (2)
4,985,313 Wire and cable 154 1986
5,209,987 Wire and cable 155 1990
 
RAYTHEON COMPANY (2)
4,457,365 In situ radio frequency selective heating system 279 1981
4,487,257 Apparatus and method for production of organic products from kerogen 112 1981
 
RWE-DEA AKTIENGESELLSCHAFT FUR MINERALOEL UND CHEMIE (2)
4,252,191 Method of recovering petroleum and bitumen from subterranean reservoirs 263 1979
4,390,973 Method for determining the extent of subsurface reaction involving acoustic signals 143 1981
 
SYNTROLEUM CORPORATION (2)
6,172,124 Process for converting gas to liquids 260 1997
6,085,512 Synthesis gas production system and method 263 1999
 
Thermon Manufacturing Company (2)
4,645,906 Reduced resistance skin effect heat generating system 147 1985
5,512,732 Switch controlled, zone-type heating cable and method 186 1993
 
THOMPSON, GREG H. (2)
4,185,692 Underground linkage of wells for production of coal in situ 146 1978
4,250,230 Generating electricity from coal in situ 275 1979
 
Union Oil Company of California (2)
5,126,037 Geopreater heating method and apparatus 274 1990
5,723,423 Solvent soaps and methods employing same 105 1996
 
UT-BATTELLE, LLC (2)
7,153,373 Heat and corrosion resistant cast CF8C stainless steel with improved high temperature strength and ductility 96 2002
2008/0078,551 Liquid Metal Heat Exchanger for Efficient Heating of Soils and Geologic Formations 56 2006
 
ADVANCED ENGINEERING SOLUTIONS LTD. (1)
6,102,137 Apparatus and method for forming ducts and passageways 151 1998
 
AGILENT TECHNOLOGIES, INC. (1)
5,150,118 Interchangeable coded key pad assemblies alternately attachable to a user definable keyboard to enable programmable keyboard functions 135 1990
 
AIR PRODUCTS AND CHEMICALS, INC. (1)
4,734,115 Low pressure process for C.sub.3.sup.+ liquids recovery from process product gas 182 1986
 
ALBERTA INNOVATES - TECHNOLOGY FUTURES (1)
6,412,559 Process for recovering methane and/or sequestering fluids 257 2000
 
ALBERTA RESEARCH COUNCIL INC. (1)
4,228,854 Enhanced oil recovery using electrical means 258 1979
 
AMERICAN SHALE OIL, LLC (1)
2007/0193,743 In situ method and system for extraction of oil from shale 27 2007
 
Aminoil, USA, Inc. (1)
4,277,416 Process for producing methanol 261 1977
 
AMP Incorporated (1)
5,065,501 Generating electromagnetic fields in a self regulating temperature heater by positioning of a current return bus 131 1990
 
ANADARKO PETROLEUM CORPORATION (1)
2003/0029,617 Apparatus, method and system for single well solution-mining 159 2001
 
ASHLAND INC. (1)
5,648,305 Process for improving the effectiveness of process catalyst 69 1996
 
BATTELLE MEMORIAL INSTITUTE (1)
5,545,803 Heating of solid earthen material, measuring moisture and resistivity 162 1994
 
BETZ LABORATORIES, INC. (1)
4,840,720 Process for minimizing fouling of processing equipment 75 1988
 
BETZDEARBORN INC. (1)
5,282,957 Methods for inhibiting polymerization of hydrocarbons utilizing a hydroxyalkylhydroxylamine 76 1992
 
BHP MINERALS INTERNATIONAL (1)
5,968,349 Extraction of bitumen from bitumen froth and biotreatment of bitumen froth tailings generated from tar sands 293 1998
 
Carbotek, Inc. (1)
4,694,907 Thermally-enhanced oil recovery method and apparatus 287 1986
 
CDX GAS, LLC (1)
2004/0035,582 System and method for subterranean access 165 2002
 
CENTRIFLOW LLC (1)
2002/0153,141 Method for pumping fluids 136 2001
 
Chambers Development Co., Inc. (1)
5,295,763 Method for controlling gas migration from a landfill 179 1992
 
CHEVRON U.S.A. INC. (1)
6,269,881 Oil recovery method for waxy crude oil using alkylaryl sulfonate surfactants derived from alpha-olefins and the alpha-olefin compositions 91 1999
 
COMPUTALOG LTD. (1)
6,192,748 Dynamic orienting reference system for directional drilling 198 1998
 
Concept R.K.K. Limited (1)
4,860,544 Closed cryogenic barrier for containment of hazardous material migration in the earth 286 1988
 
Concept RKK, Limited (1)
4,974,425 Closed cryogenic barrier for containment of hazardous material migration in the earth 284 1989
 
CONOCO INC. (1)
4,418,752 Thermal oil recovery with solvent recirculation 176 1982
 
CONOCOPHILLIPS COMPANY (1)
5,411,104 Coalbed methane drilling 322 1994
 
COOPER CAMERON CORPORATION (1)
4,474,236 Method and apparatus for remote installations of dual tubing strings in a subsea well 90 1983
 
CRI International, Inc. (1)
5,688,736 Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst 117 1995
 
DA QUING PETROLEUM ADMINISTRATION BUREAU (1)
6,439,308 Foam drive method 63 2000
 
DCNS SA (1)
5,861,137 Steam reformer with internal hydrogen purification 432 1996
 
DOVER TECHNOLOGIES INTERNATIONAL, INC. (1)
5,182,427 Self-regulating heater utilizing ferrite-type body 155 1990
 
DOWELL SCHLUMBERGER INCORPORATED (1)
4,940,095 Deployment/retrieval method and apparatus for well tools used with coiled tubing 116 1989
 
DRESSER INDUSTRIES, INC. (1)
4,852,648 Well installation in which electrical current is supplied for a source at the wellhead to an electrically responsive device located a substantial distance below the wellhead 78 1987
 
DSM N.V. (1)
4,254,297 Process for the conversion of dimethyl ether 80 1979
 
E.R. JOHNSON ASSOCIATES, INC. A CORP. OF DISTRICT OF COLUMBIA (1)
4,428,700 Method for disposing of waste materials 195 1981
 
EARTH TOOL COMPANY, LLC (1)
2002/0112,890 Conduit pulling apparatus and method for use in horizontal drilling 149 2002
 
Electric Power Research Institute, Inc. (1)
5,911,898 Method and apparatus for providing multiple autoregulated temperatures 129 1995
 
ELECTRO-PETROLEUM, INC. (1)
4,382,469 Method of in situ gasification 77 1981
 
Electroflood Company (1)
4,199,025 Method and apparatus for tertiary recovery of oil 82 1977
 
Elektra Energie A.G. (1)
4,456,065 Heavy oil recovering 281 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 253 1993
 
ENGELHARD CORPORATION (1)
4,927,857 Method of methanol production 288 1989
 
Eureka Oil ASA (1)
6,499,536 Method to increase the oil production from an oil reservoir 191 2000
 
EVEREADY BATTERY COMPANY, INC. (1)
2008/0216,321 SHAVING AID DELIVERY SYSTEM FOR USE WITH WET SHAVE RAZORS 25 2008
 
EVI CHERRINGTON ENVIRONMENTAL, INC. (1)
5,040,601 Horizontal well bore system 59 1990
 
EXXON PRODUCTION RESEARCH COMPANY (1)
4,390,067 Method of treating reservoirs containing very viscous crude oil or bitumen 361 1981
 
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY (1)
2002/0112,987 Slurry hydroprocessing for heavy oil upgrading using supported slurry catalysts 204 2000
 
FINE PARTICLE TECHNOLOGY CORP. (1)
4,926,941 Method of producing tar sand deposits containing conductive layers 212 1989
 
FRAMO ENGINEERING AS (1)
5,285,846 Thermal mineral extraction system 260 1992
 
GAS TECHNOLOGY INSTITUTE (1)
5,759,022 Method and system for reducing NO.sub.x and fuel emissions in a furnace 111 1995
 
Gen Syn Fuels (1)
7,048,051 Recovery of products from oil shale 86 2003
 
GENERAL ELECTRIC COMPANY (1)
7,124,584 System and method for heat recovery from geothermal source of heat 64 2005
 
GEOPETROL EQUIPMENT LTD. (1)
5,985,138 Tar sands extraction process 264 1998
 
GULF CANADA RESOURCES LIMITED/RESSOURCES GULF CANADA LIMITEE (1)
4,501,326 In-situ recovery of viscous hydrocarbonaceous crude oil 250 1983
 
GULF OIL CORPORATION, PITTSBURGH (1)
4,637,464 In situ retorting of oil shale with pulsed water purge 259 1984
 
GULF RESEARCH AND DEVELOPMENT COMPANY, A CORP. OF DE. (1)
4,299,285 Underground gasification of bituminous coal 250 1980
 
HARMON, JERALD L. (1)
6,584,406 Downhole process control method utilizing seismic communication 182 2000
 
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANY (1)
4,549,073 Current controller for resistive heating element 64 1981
 
HERCULES INCORPORATED (1)
6,417,268 Method for making hydrophobically associative polymers, methods of use and compositions 69 1999
 
Hrubetz Environmental Services, Inc. (1)
5,011,329 In situ soil decontamination method and apparatus 184 1990
 
ILLINOIS TOOL WORKS INC. (1)
6,313,431 Plasma cutter for auxiliary power output of a power source 52 2000
 
IMPERIAL ENERGY CORPORATION (1)
4,248,306 Geothermal petroleum refining 95 1979
 
INDEPENDENT ENERGY PARTNERS, INC. (1)
6,684,948 Apparatus and method for heating subterranean formations using fuel cells 181 2002
 
Intercontinental Econergy Associates, Inc. (1)
4,452,491 Recovery of hydrocarbons from deep underground deposits of tar sands 148 1981
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
4,577,503 Method and device for detecting a specific acoustic spectral feature 154 1984
 
International Coal Refining Company (1)
4,397,732 Process for coal liquefaction employing selective coal feed 249 1982
 
Iris Associates (1)
4,256,945 Alternating current electrically resistive heating element having intrinsic temperature control 284 1979
 
ITT RESEARCH INSTITUTE (1)
4,485,869 Recovery of liquid hydrocarbons from oil shale by electromagnetic heating in situ 295 1982
 
ITT RESEARCH INSTITUTE, A NOT-FOR-PROFIT CORP. OF IL (1)
4,485,868 Method for recovery of viscous hydrocarbons by electromagnetic heating in situ 111 1982
 
JUDD, DANIEL (1)
4,856,587 Recovery of oil from oil-bearing formation by continually flowing pressurized heated gas through channel alongside matrix 254 1988
 
Justheim Pertroleum Company (1)
4,384,614 Method of retorting oil shale by velocity flow of super-heated air 191 1981
 
KAI TECHNOLOGIES, INC. (1)
5,152,341 Electromagnetic method and apparatus for the decontamination of hazardous material-containing volumes 101 1991
 
KELLOGG BROWN & ROOT, INC. (1)
6,357,526 Field upgrading of heavy oil and bitumen 201 2000
 
KENKEL KOMMANDITGESELLSCHAFT AUF AKITEN (HENKEL KGAA) (1)
5,318,709 Process for the production of surfactant mixtures based on ether sulfonates and their use 84 1991
 
Kraftwerk Union Aktiengesellschaft (1)
4,608,818 Medium-load power-generating plant with integrated coal gasification plant 258 1984
 
KRUPP KOPPERS GMBH (1)
4,994,093 Method of producing methanol synthesis gas 255 1990
 
LATJET SYSTEMS LLC (1)
6,283,230 Method and apparatus for lateral well drilling utilizing a rotating nozzle 87 1999
 
LOCKHEED MARTIN CORPORATION (1)
6,467,543 System and process for secondary hydrocarbon recovery 186 2000
 
LONGYEAR COMPANY (1)
4,823,890 Reverse circulation bit apparatus 133 1988
 
M.W. KELLOGG COMPANY, THE (1)
4,407,973 Methanol from coal and natural gas 256 1982
 
Magrange, Inc. (1)
5,064,006 Downhole combination tool 286 1988
 
MAST AUTOMATION, INC. (1)
5,777,229 Sensor transport system for combination flash butt welder 173 1996
 
MEGGITT AVIOINICS, INC. (1)
5,828,797 Fiber optic linked flame sensor 153 1996
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
4,412,124 Electrode unit for electrically heating underground hydrocarbon deposits 252 1981
 
Motoren-Werke Mannheim AG (1)
4,378,048 Substoichiometric combustion of low heating value gases using different platinum catalysts 252 1981
 
MUELLER, THOMAS D. (1)
4,572,229 Variable proportioner 65 1984
 
NALCO COMPANY (1)
5,654,261 Permeability modifying composition for use in oil recovery 72 1996
 
NENNIGER, JOHN (1)
5,517,593 Control system for well stimulation apparatus with response time temperature rise used in determining heater control temperature setpoint 270 1995
 
NEXANS (1)
2002/0028,070 HEATING SYSTEM FOR CRUDE OIL TRANSPORTING METALLIC TUBES 126 1999
 
Nippondenso Co., Ltd. (1)
4,639,712 Sheathed heater 56 1985
 
NKK Corporation (1)
5,261,490 Method for dumping and disposing of carbon dioxide gas and apparatus therefor 265 1992
 
NOWSCO WELL SERVICE LTD. (1)
6,015,015 Insulated and/or concentric coiled tubing 292 1997
 
OCCIDENTAL SHALE INC. (1)
4,623,444 Upgrading shale oil by a combination process 188 1985
 
Oil Chem Technologies (1)
6,022,834 Alkaline surfactant polymer flooding composition and process 97 1997
 
OIL SANDS UNDERGROUND MINING, INC. (1)
2008/0017,416 METHOD OF DRILLING FROM A SHAFT FOR UNDERGROUND RECOVERY OF HYDROCARBONS 51 2007
 
OIL STATES ENERGY SERVICES, L.L.C. (1)
6,516,891 Dual string coil tubing injector assembly 82 2001
 
Oil Trieval Corporation (1)
4,305,463 Oil recovery method and apparatus 266 1970
 
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 259 1985
 
PARHELION, INC. (1)
5,097,903 Method for recovering intractable petroleum from subterranean formations 199 1991
 
PASSERFIN OIL, GAS AND PIPELINE SERVICE GMBH (1)
5,619,611 Device for removing downhole deposits utilizing tubular housing and passing electric current through fluid heating medium contained therein 27 1995
 
Patton Consulting, Inc. (1)
5,103,920 Surveying system and method for locating target subterranean bodies 191 1990
 
PETROLEO BRASILEIRO S.A. - PETROBRAS (1)
5,182,792 Process of electric pipeline heating utilizing heating elements inserted in pipelines 250 1991
 
PIRSON, JACQUE (1)
4,491,179 Method for oil recovery by in situ exfoliation drive 142 1982
 
QUICK CONNECTORS, INC. (1)
5,289,882 Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas 279 1991
 
Ramcor, Inc. (1)
4,197,911 Process for in situ coal gasification 248 1978
 
RAMEX SYN-FUELS INTERNATIONAL, INC. (1)
4,928,765 Method and apparatus for shale gas recovery 262 1988
 
Rangewest Technologies Ltd. (1)
6,039,121 Enhanced lift method and apparatus for the production of hydrocarbons 144 1997
 
Raychem GmbH (1)
4,733,057 Sheet heater 153 1986
 
RAYCHEM S.A. (1)
5,579,575 Method and apparatus for forming an electrical connection 133 1994
 
RED OAK PARTNERSHIP, L.P., THE (1)
5,435,666 Methods for isolating a water table and for soil remediation 194 1993
 
Resource Technology Associates (1)
5,008,085 Apparatus for thermal treatment of a hydrocarbon stream 258 1989
 
RKK, LTD (1)
5,050,386 Method and apparatus for containment of hazardous material migration in the earth 279 1990
 
ROBERT L.MAGNIE AND ASSOCIATES,INC. A CORP OF COLO. (1)
4,183,405 Enhanced recoveries of petroleum and hydrogen from underground reservoirs 269 1978
 
ROCKWELL INTERNATIONAL CORPORATION (1)
4,498,531 Emission controller for indirect fired downhole steam generators 112 1982
 
S-CAL RESEARCH CORPORATION (1)
4,706,751 Heavy oil recovery process 238 1986
 
SCHLUMBERGER TECHNOLOGIES, INC. (1)
6,354,373 Expandable tubing for a well bore hole and method of expanding 389 1998
 
SCHLUMBERGER TECHNOLOGY CORPORATION (1)
6,318,469 Completion equipment having a plurality of fluid paths for use in a well 16 2000
 
SCIENCE & ENGINEERING ASSOCIATES, INC. (1)
6,035,701 Method and system to locate leaks in subsurface containment structures using tracer gases 180 1998
 
Scientific Engineering Instruments, Inc. (1)
5,349,859 Method and apparatus for measuring acoustic wave velocity using impulse response 254 1991
 
Scioto County Regional Water District #1 (1)
6,422,318 Horizontal well system 166 2000
 
SCOTOIL SERVICES LIMITED (1)
6,805,194 Gas and oil production 124 2002
 
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. (1)
4,605,680 Conversion of synthesis gas to diesel fuel and gasoline 260 1985
 
Societe Nationale Elf Aquitaine (1)
4,513,816 Sealing system for a well bore in which a hot fluid is circulated 249 1984
 
SOUTHERN CALIFORNIA GAS COMPANY (1)
5,769,569 In-situ thermal desorption of heavy hydrocarbons in vadose zone 143 1996
 
Sperika Enterprises Ltd. (1)
5,854,472 Low-voltage and low flux density heating system 49 1996
 
Steel Ventures, L.L.C. (1)
7,032,809 Seam-welded metal pipe and method of making the same without seam anneal 76 2003
 
STILL-MAN HEATING PRODUCTS, INC. (1)
5,066,852 Thermoplastic end seal for electric heating elements 154 1990
 
Sulcon, Inc. (1)
4,518,548 Method of overlaying sulphur concrete on horizontal and vertical surfaces 170 1983
 
SYNFUEL, A LIMITED PARTNERSHIP OF IN, A CORP. OF IN. (1)
4,401,162 In situ oil shale process 106 1981
 
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 333 1997
 
Terra Tek, Inc. (1)
4,384,613 Method of in-situ retorting of carbonaceous material for recovery of organic liquids and gases 269 1980
 
The Babcock & Wilcox Company (1)
4,848,924 Acoustic pyrometer 266 1987
 
The Badger Company, Inc. (1)
4,193,451 Method for production of organic products from kerogen 258 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 237 1990
 
The BOC Group, Inc. (1)
5,332,036 Method of recovery of natural gases from underground coal formations 124 1992
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5,525,322 Method for simultaneous recovery of hydrogen from water and from hydrocarbons 309 1994
 
THE TEXAS A&M UNIVERSITY SYSTEM (1)
5,305,239 Ultrasonic non-destructive evaluation of thin specimens 172 1989
 
The United States of America as represented by the Secretary of Commerce (1)
5,652,389 Non-contact method and apparatus for inspection of inertia welds 193 1996
 
Tokyo Shibaura Denki Kabushiki Kaisha (1)
4,280,046 Sheath heater 54 1979
 
TOMOSEIS, INC. (1)
6,388,947 Multi-crosswell profile 3D imaging and method 151 1998
 
TOTAL FINA ELF (1)
2002/0197,174 Electrical pump, and method for using plurality of submersible electrical pumps for well completion 2002
 
TRANSPACIFIC INFORMATION, LLC (1)
2002/0027,612 Spatio-temporal channel for images 9 2001
 
TUBEL TECHNOLOGIES, INC. (1)
6,913,079 Method and system for monitoring smart structures utilizing distributed optical sensors 159 2001
 
TYCO ELECTRONICS CORPORATION (1)
6,288,372 Electric cable having braidless polymeric ground plane providing fault detection 158 1999
 
Uentech International Corporation (1)
6,353,706 Optimum oil-well casing heating 199 2000
 
UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION (1)
4,776,638 Method and apparatus for conversion of coal in situ 281 1987
 
Vesojuzny Nauchno-Issledovatelsky Institut Ispolzovania Gaza V Narodnom Khozyaistve I Podzemnogo Khranenia Nefti, Nefteproduktov I Szhizhennykh Gazov (Vniipromgaz) (1)
4,440,224 Method of underground fuel gasification 151 1979
 
W. B. COMBUSTION, INC. (1)
4,401,099 Single-ended recuperative radiant tube assembly and method 125 1980
 
WESTERN ATLAS INTERNATIONAL, INC. (1)
4,282,587 Method for monitoring the recovery of minerals from shallow geological formations 147 1979
 
WESTERN RESEARCH INSTITUTE (1)
4,848,460 Contained recovery of oily waste 164 1988
 
WORCESTER POLYTECHNIC INSTITUTE (1)
6,152,987 Hydrogen gas-extraction module and method of fabrication 291 1998
 
Other [Check patent profile for assignment information] (44)
4,228,853 Petroleum production method 131 1978
4,243,101 Coal gasification method 258 1978
4,446,917 Method and apparatus for producing viscous or waxy crude oils 137 1979
4,306,621 Method for in situ coal gasification operations 258 1980
4,423,311 Electric heating apparatus for de-icing pipes 259 1981
4,444,255 Apparatus and process for the recovery of oil 254 1981
4,344,483 Multiple-site underground magnetic heating of hydrocarbons 263 1981
4,444,258 In situ recovery of oil from oil shale 263 1981
4,455,215 Process for the geoconversion of coal into oil 140 1982
4,442,896 Treatment of underground beds 219 1982
4,479,541 Method and apparatus for recovery of oil, gas and mineral deposits by panel opening 239 1982
4,609,041 Well hot oil system 123 1983
4,538,682 Method and apparatus for removing oil well paraffin 133 1983
4,762,425 System for temperature profile measurement in large furnances and kilns and method therefor 263 1987
4,895,206 Pulsed in situ exothermic shock wave and retorting process for hydrocarbon recovery and detoxification of selected wastes 260 1989
5,027,896 Method for in-situ recovery of energy raw material by the introduction of a water/oxygen slurry 164 1990
5,082,054 In-situ tuned microwave oil extraction process 338 1990
5,217,076 Method and apparatus for improved recovery of oil from porous, subsurface deposits (targevcir oricess) 359 1991
5,360,067 Vapor-extraction system for removing hydrocarbons from soil 167 1993
5,400,430 Method for injection well stimulation 126 1994
5,458,774 Corrugated spiral membrane module 72 1994
5,624,188 Acoustic thermometer 259 1994
5,823,256 Ferrule--type fitting for sealing an electrical conduit in a well head barrier 67 1996
6,112,808 Method and apparatus for subterranean thermal conditioning 247 1997
5,984,582 Method of extracting a hollow unit laid in the ground 152 1997
5,879,110 Methods for encapsulating buried waste in situ with molten wax 101 1998
6,942,032 Resistive down hole heating tool 51 2003
7,114,880 Process for the excavation of buried waste 81 2004
2005/0269,091 Reducing viscosity of oil for production from a hydrocarbon containing formation 98 2005
2008/0283,241 Downhole burner wells for in situ conversion of organic-rich rock formations 92 2008
2009/0071,652 IN SITU HEAT TREATMENT FROM MULTIPLE LAYERS OF A TAR SANDS FORMATION 75 2008
2009/0090,509 IN SITU RECOVERY FROM RESIDUALLY HEATED SECTIONS IN A HYDROCARBON CONTAINING FORMATION 78 2008
2009/0095,480 IN SITU HEAT TREATMENT OF A TAR SANDS FORMATION AFTER DRIVE PROCESS TREATMENT 72 2008
2009/0120,646 ELECTRICALLY ISOLATING INSULATED CONDUCTOR HEATER 86 2008
2009/0194,282 IN SITU OXIDATION OF SUBSURFACE FORMATIONS 85 2008
2009/0194,286 MULTI-STEP HEATER DEPLOYMENT IN A SUBSURFACE FORMATION 83 2008
2009/0194,287 INDUCTION HEATERS USED TO HEAT SUBSURFACE FORMATIONS 84 2008
2009/0194,329 METHODS FOR FORMING WELLBORES IN HEATED FORMATIONS 88 2008
2009/0194,524 METHODS FOR FORMING LONG SUBSURFACE HEATERS 85 2008
2009/0200,022 CRYOGENIC TREATMENT OF GAS 84 2008
2009/0200,025 HIGH TEMPERATURE METHODS FOR FORMING OXIDIZER FUEL 67 2008
2009/0200,031 IRREGULAR SPACING OF HEAT SOURCES FOR TREATING HYDROCARBON CONTAINING FORMATIONS 84 2008
2009/0200,290 VARIABLE VOLTAGE LOAD TAP CHANGING TRANSFORMER 82 2008
2009/0038,795 Hydrocarbon Recovery From Impermeable Oil Shales Using Sets of Fluid-Heated Fractures 64 2008

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SHELL OIL COMPANY (44)
8,224,165 Temperature limited heater utilizing non-ferromagnetic conductor 8 2006
8,381,806 Joint used for coupling long heaters 2 2007
8,083,813 Methods of producing transportation fuel 24 2007
8,459,359 Treating nahcolite containing formations and saline zones 0 2008
8,381,815 Production from multiple zones of a tar sands formation 1 2008
8,327,681 Wellbore manufacturing processes for in situ heat treatment processes 2 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 8 2008
8,272,455 Methods for forming wellbores in heated formations 3 2008
8,240,774 Solution mining and in situ treatment of nahcolite beds 8 2008
8,196,658 Irregular spacing of heat sources for treating hydrocarbon containing formations 14 2008
8,162,059 Induction heaters used to heat subsurface formations 18 2008
8,146,661 Cryogenic treatment of gas 22 2008
8,146,669 Multi-step heater deployment in a subsurface formation 20 2008
8,113,272 Three-phase heaters with common overburden sections for heating subsurface formations 4 2008
8,177,305 Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations 19 2009
8,172,335 Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations 18 2009
8,162,405 Using tunnels for treating subsurface hydrocarbon containing formations 19 2009
8,151,907 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations 22 2009
8,450,540 Compositions produced using an in situ heat treatment process 1 2009
8,353,347 Deployment of insulated conductors for treating subsurface formations 1 2009
8,281,861 Circulated heated transfer fluid heating of subsurface hydrocarbon formations 7 2009
8,267,170 Offset barrier wells in subsurface formations 8 2009
8,267,185 Circulated heated transfer fluid systems used to treat a subsurface formation 7 2009
8,261,832 Heating subsurface formations with fluids 11 2009
8,256,512 Movable heaters for treating subsurface hydrocarbon containing formations 3 2009
8,220,539 Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation 8 2009
8,562,078 Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations 0 2009
8,448,707 Non-conducting heater casings 0 2010
8,434,555 Irregular pattern treatment of a subsurface formation 1 2010
8,327,932 Recovering energy from a subsurface formation 1 2010
8,192,682 High strength alloys 14 2010
8,225,866 In situ recovery from a hydrocarbon containing formation 5 2010
8,233,782 Grouped exposed metal heaters 1 2010
8,356,935 Methods for assessing a temperature in a subsurface formation 0 2010
8,257,112 Press-fit coupling joint for joining insulated conductors 3 2010
8,151,880 Methods of making transportation fuel 17 2010
8,502,120 Insulating blocks and methods for installation in insulated conductor heaters 0 2011
8,485,256 Variable thickness insulated conductors 0 2011
8,230,927 Methods and systems for producing fluid from an in situ conversion process 1 2011
8,579,031 Thermal processes for subsurface formations 0 2011
8,555,971 Treating tar sands formations with dolomite 0 2012
8,485,252 In situ recovery from a hydrocarbon containing formation 0 2012
8,485,847 Press-fit coupling joint for joining insulated conductors 0 2012
 
COMPANY, SHELL OIL (1)
8,191,630 Creating fluid injectivity in tar sands formations 15 2010
 
ECON Maschinenbau und Steuerungstechnik GmbH (1)
8,037,618 Device for draining and drying solids, in particular plastics granulated under water 0 2007
 
SCHLUMBERGER TECHNOLOGY CORPORATION (1)
8,439,106 Logging system and methodology 0 2010
 
Other [Check patent profile for assignment information] (3)
8,579,014 Cooling arrangement for conveyors and other applications 0 2009
8,586,866 Hydroformed splice for insulated conductors 0 2011
8,586,867 End termination for three-phase insulated conductors 0 2011

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