US Patent No: 7,931,086

Number of patents in Portfolio can not be more than 2000

Heating systems for heating subsurface formations

ALSO PUBLISHED AS: 20090095477
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Abstract

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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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Patent Owner(s)

Patent OwnerAddressTotal Patents
SHELL OIL COMPANYHOUSTON, TX5174

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nguyen, Scott Vinh - 26 1031
Vinegar, Harold J Bellaire, TX 548 55399

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 277 1980
4,398,151 Method for correcting an electrical log for the presence of shale in a formation 266 1982
4,583,046 Apparatus for focused electrode induced polarization logging 269 1983
4,499,209 Process for the preparation of a Fischer-Tropsch catalyst and preparation of hydrocarbons from syngas 212 1983
4,540,882 Method of determining drilling fluid invasion 276 1983
4,542,648 Method of correlating a core sample with its original position in a borehole 277 1983
4,571,491 Method of imaging the atomic number of a sample 286 1983
4,583,242 Apparatus for positioning a sample in a computerized axial tomographic scanner 271 1983
4,613,754 Tomographic calibration apparatus 281 1983
4,635,197 High resolution tomographic imaging method 265 1983
4,644,283 In-situ method for determining pore size distribution, capillary pressure and permeability 278 1984
4,570,715 Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature 314 1984
4,663,711 Method of analyzing fluid saturation using computerized axial tomography 266 1984
4,572,299 Heater cable installation 295 1984
4,585,066 Well treating process for installing a cable bundle containing strands of changing diameter 267 1984
4,704,514 Heating rate variant elongated electrical resistance heater 316 1985
4,671,102 Method and apparatus for determining distribution of fluids 286 1985
4,626,665 Metal oversheathed electrical resistance heater 299 1985
4,719,423 NMR imaging of materials for transport properties 292 1985
4,728,892 NMR imaging of materials 318 1985
4,640,352 In-situ steam drive oil recovery process 308 1985
4,730,162 Time-domain induced polarization logging method and apparatus with gated amplification level 264 1985
4,658,215 Method for induced polarization logging 269 1986
4,616,705 Mini-well temperature profiling process 285 1986
4,769,602 Determining multiphase saturations by NMR imaging of multiple nuclides 287 1986
4,769,606 Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations 270 1986
4,743,854 In-situ induced polarization method for determining formation permeability 265 1986
4,827,761 Sample holder 279 1987
4,856,341 Apparatus for analysis of failure of material 272 1987
5,306,640 Method for determining preselected properties of a crude oil 269 1987
4,886,118 Conductively heating a subterranean oil shale to create permeability and subsequently produce oil 342 1988
4,866,983 Analytical methods and apparatus for measuring the oil content of sponge core 268 1988
4,893,504 Method for determining capillary pressure and relative permeability by imaging 194 1988
4,884,455 Method for analysis of failure of material employing imaging 270 1989
4,987,368 Nuclear magnetism logging tool using high-temperature superconducting squid detectors 290 1989
5,042,579 Method and apparatus for producing tar sand deposits containing conductive layers 103 1990
5,046,559 Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers 312 1990
5,060,726 Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication 282 1990
5,060,287 Heater utilizing copper-nickel alloy core 309 1990
5,065,818 Subterranean heaters 301 1991
5,103,909 Profile control in enhanced oil recovery 101 1991
5,189,283 Current to power crossover heater control 275 1991
5,168,927 Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation 267 1991
5,226,961 High temperature wellbore cement slurry 286 1992
5,255,742 Heat injection process 331 1992
5,297,626 Oil recovery process 309 1992
5,236,039 Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale 336 1992
5,366,012 Method of completing an uncased section of a borehole 536 1993
5,391,291 Hydrogenation catalyst and process 273 1993
5,468,372 Process of hydrotreating and/or hydrocracking hydrocarbon streams or tail gas treating sulfur-containing gas streams 128 1993
5,392,854 Oil recovery process 310 1993
5,404,952 Heat injection process and apparatus 293 1993
5,411,089 Heat injection process 284 1993
5,433,271 Heat injection process 281 1993
5,409,071 Method to cement a wellbore 275 1994
5,497,087 NMR logging of natural gas reservoirs 305 1994
5,498,960 NMR logging of natural gas in reservoirs 320 1994
5,541,517 Method for drilling a borehole from one cased borehole to another cased borehole 275 1995
5,862,858 Flameless combustor 294 1996
5,899,269 Flameless combustor 312 1996
5,744,025 Process for hydrotreating metal-contaminated hydrocarbonaceous feedstock 119 1997
6,056,057 Heater well method and apparatus 312 1997
6,079,499 Heater well method and apparatus 307 1997
6,094,048 NMR logging of natural gas reservoirs 270 1997
6,023,554 Electrical heater 311 1998
6,102,122 Control of heat injection based on temperature and in-situ stress measurement 279 1998
6,019,172 Flameless combustor 283 1999
6,218,333 Preparation of a hydrotreating catalyst 118 1999
6,540,018 Method and apparatus for heating a wellbore 154 1999
6,290,841 Hydrotreating process using sulfur activated non-calcined catalyst 119 2000
2002/0036,085 Toroidal choke inductor for wireless communication and control 72 2001
6,679,332 Petroleum well having downhole sensors, communication and power 192 2001
6,715,550 Controllable gas-lift well and valve 146 2001
6,981,553 Controlled downhole chemical injection 141 2001
7,147,059 Use of downhole high pressure gas in a gas-lift well and associated methods 143 2001
7,170,424 Oil well casting electrical power pick-off points 139 2001
7,259,688 Wireless reservoir production control 97 2001
2002/0027,001 In situ thermal processing of a coal formation to produce a selected gas mixture 195 2001
2002/0033,253 In situ thermal processing of a hydrocarbon containing formation using insulated conductor heat sources 201 2001
2002/0036,089 In situ thermal processing of a hydrocarbon containing formation using distributed combustor heat sources 196 2001
2002/0038,069 In situ thermal processing of a coal formation to produce a mixture of olefins, oxygenated hydrocarbons, and aromatic hydrocarbons 194 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 202 2001
2002/0040,780 In situ thermal processing of a hydrocarbon containing formation to produce a selected mixture 198 2001
2002/0053,431 In situ thermal processing of a hydrocarbon containing formation to produce a selected ratio of components in a gas 198 2001
2002/0076,212 In situ thermal processing of a hydrocarbon containing formation producing a mixture with oxygenated hydrocarbons 199 2001
2003/0085,034 In situ thermal processing of a coal formation to produce pyrolsis products 195 2001
6,581,684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids 253 2001
6,588,503 In Situ thermal processing of a coal formation to control product composition 212 2001
6,588,504 In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids 220 2001
6,591,906 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content 237 2001
6,591,907 In situ thermal processing of a coal formation with a selected vitrinite reflectance 212 2001
6,607,033 In Situ thermal processing of a coal formation to produce a condensate 208 2001
6,609,570 In situ thermal processing of a coal formation and ammonia production 208 2001
6,688,387 In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate 229 2001
6,698,515 In situ thermal processing of a coal formation using a relatively slow heating rate 208 2001
6,702,016 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer 217 2001
6,708,758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas 216 2001
6,712,135 In situ thermal processing of a coal formation in reducing environment 207 2001
6,712,136 In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing 256 2001
6,712,137 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material 206 2001
6,715,546 In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore 230 2001
6,715,547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation 211 2001
6,715,548 In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids 211 2001
6,715,549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio 173 2001
6,719,047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment 212 2001
6,722,429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas 228 2001
6,722,430 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio 207 2001
6,722,431 In situ thermal processing of hydrocarbons within a relatively permeable formation 227 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 212 2001
6,725,921 In situ thermal processing of a coal formation by controlling a pressure of the formation 157 2001
6,725,928 In situ thermal processing of a coal formation using a distributed combustor 207 2001
6,729,395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells 213 2001
6,729,396 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range 205 2001
6,729,397 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance 211 2001
6,729,401 In situ thermal processing of a hydrocarbon containing formation and ammonia production 211 2001
6,732,794 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 211 2001
6,732,795 In situ thermal processing of a hydrocarbon containing formation to pyrolyze a selected percentage of hydrocarbon material 171 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 231 2001
6,736,215 In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration 217 2001
6,739,393 In situ thermal processing of a coal formation and tuning production 206 2001
6,739,394 Production of synthesis gas from a hydrocarbon containing formation 214 2001
6,742,587 In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation 206 2001
6,742,588 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content 237 2001
6,742,589 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources 205 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 212 2001
6,745,831 In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation 230 2001
6,745,832 Situ thermal processing of a hydrocarbon containing formation to control product composition 192 2001
6,745,837 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate 212 2001
6,749,021 In situ thermal processing of a coal formation using a controlled heating rate 209 2001
6,752,210 In situ thermal processing of a coal formation using heat sources positioned within open wellbores 223 2001
6,758,268 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate 211 2001
6,761,216 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas 207 2001
6,763,886 In situ thermal processing of a coal formation with carbon dioxide sequestration 201 2001
6,769,483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources 213 2001
6,769,485 In situ production of synthesis gas from a coal formation through a heat source wellbore 209 2001
6,789,625 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources 210 2001
6,805,195 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas 199 2001
6,820,688 In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio 188 2001
6,866,097 In situ thermal processing of a coal formation to increase a permeability/porosity of the formation 172 2001
6,871,707 In situ thermal processing of a hydrocarbon containing formation with carbon dioxide sequestration 166 2001
6,877,554 In situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control 164 2001
6,880,635 In situ production of synthesis gas from a coal formation, the synthesis gas having a selected H2 to CO ratio 166 2001
6,889,769 In situ thermal processing of a hydrocarbon containing formation with a selected moisture content 153 2001
6,896,053 In situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources 175 2001
6,902,003 In situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content 151 2001
6,902,004 In situ thermal processing of a hydrocarbon containing formation using a movable heating element 157 2001
6,910,536 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor 153 2001
6,913,078 In Situ thermal processing of hydrocarbons within a relatively impermeable formation 168 2001
6,948,563 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content 153 2001
6,953,087 Thermal processing of a hydrocarbon containing formation to increase a permeability of the formation 172 2001
6,959,761 In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells 150 2001
6,966,372 In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids 155 2001
6,973,967 Situ thermal processing of a coal formation using pressure and/or temperature control 149 2001
6,994,160 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range 168 2001
6,994,168 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio 147 2001
6,997,255 In situ thermal processing of a hydrocarbon containing formation in a reducing environment 148 2001
7,036,583 In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation 167 2001
7,086,468 In situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores 150 2001
7,096,941 In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer 143 2001
7,096,953 In situ thermal processing of a coal formation using a movable heating element 170 2001
6,759,364 Arsenic removal catalyst and method for making same 88 2001
6,821,501 Integrated flameless distributed combustion/steam reforming membrane reactor for hydrogen production and use thereof in zero emissions hybrid power system 98 2002
2003/0079,877 In situ thermal processing of a relatively impermeable formation in a reducing environment 212 2002
2003/0146,002 Removable heat sources for in situ thermal processing of an oil shale formation 209 2002
6,782,947 In situ thermal processing of a relatively impermeable formation to increase permeability of the formation 253 2002
6,877,555 In situ thermal processing of an oil shale formation while inhibiting coking 187 2002
6,880,633 In situ thermal processing of an oil shale formation to produce a desired product 203 2002
6,915,850 In situ thermal processing of an oil shale formation having permeable and impermeable sections 158 2002
6,918,442 In situ thermal processing of an oil shale formation in a reducing environment 156 2002
6,918,443 In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range 170 2002
6,923,257 In situ thermal processing of an oil shale formation to produce a condensate 174 2002
6,929,067 Heat sources with conductive material for in situ thermal processing of an oil shale formation 171 2002
6,948,562 Production of a blending agent using an in situ thermal process in a relatively permeable formation 186 2002
6,951,247 In situ thermal processing of an oil shale formation using horizontal heat sources 191 2002
6,964,300 In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore 185 2002
6,966,374 In situ thermal recovery from a relatively permeable formation using gas to increase mobility 159 2002
6,981,548 In situ thermal recovery from a relatively permeable formation 156 2002
6,991,032 In situ thermal processing of an oil shale formation using a pattern of heat sources 168 2002
6,994,169 In situ thermal processing of an oil shale formation with a selected property 157 2002
6,997,518 In situ thermal processing and solution mining of an oil shale formation 176 2002
7,004,247 Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation 188 2002
7,004,251 In situ thermal processing and remediation of an oil shale formation 189 2002
7,032,660 In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation 181 2002
7,040,397 Thermal processing of an oil shale formation to increase permeability of the formation 167 2002
7,040,398 In situ thermal processing of a relatively permeable formation in a reducing environment 151 2002
7,040,399 In situ thermal processing of an oil shale formation using a controlled heating rate 166 2002
7,040,400 In situ thermal processing of a relatively impermeable formation using an open wellbore 177 2002
7,051,807 In situ thermal recovery from a relatively permeable formation with quality control 113 2002
7,055,600 In situ thermal recovery from a relatively permeable formation with controlled production rate 174 2002
7,096,942 In situ thermal processing of a relatively permeable formation while controlling pressure 178 2002
2003/0196,789 In situ thermal processing of a hydrocarbon containing formation and upgrading of produced fluids prior to further treatment 224 2002
2003/0201,098 In situ recovery from a hydrocarbon containing formation using one or more simulations 219 2002
6,932,155 In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well 195 2002
6,969,123 Upgrading and mining of coal 190 2002
6,991,045 Forming openings in a hydrocarbon containing formation using magnetic tracking 157 2002
7,011,154 In situ recovery from a kerogen and liquid hydrocarbon containing formation 187 2002
7,051,808 Seismic monitoring of in situ conversion in a hydrocarbon containing formation 94 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 178 2002
7,066,254 In situ thermal processing of a tar sands formation 210 2002
7,066,257 In situ recovery from lean and rich zones in a hydrocarbon containing formation 157 2002
7,077,198 In situ recovery from a hydrocarbon containing formation using barriers 197 2002
7,077,199 In situ thermal processing of an oil reservoir formation 185 2002
7,086,465 In situ production of a blending agent from a hydrocarbon containing formation 156 2002
7,090,013 In situ thermal processing of a hydrocarbon containing formation to produce heated fluids 179 2002
7,100,994 Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation 176 2002
7,104,319 In situ thermal processing of a heavy oil diatomite formation 178 2002
7,114,566 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor 186 2002
7,128,153 Treatment of a hydrocarbon containing formation after heating 162 2002
7,156,176 Installation and use of removable heaters in a hydrocarbon containing formation 157 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 178 2002
7,055,602 Method and composition for enhanced hydrocarbons recovery 96 2003
6,923,258 In situ thermal processsing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 169 2003
6,958,704 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters 167 2003
2004/0140,096 Insulated conductor temperature limited heaters 169 2003
2004/0144,540 High voltage temperature limited heaters 158 2003
2004/0144,541 Forming wellbores using acoustic methods 118 2003
2004/0146,288 Temperature limited heaters for heating subsurface formations or wellbores 177 2003
2005/0006,097 Variable frequency temperature limited heaters 170 2003
7,073,578 Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation 195 2003
7,121,341 Conductor-in-conduit temperature limited heaters 154 2003
7,219,734 Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation 170 2003
7,121,342 Thermal processes for subsurface formations 220 2004
2005/0133,405 Systems and methods of producing a crude product 79 2004
2005/0133,414 Systems, methods, and catalysts for producing a crude product 91 2004
2005/0269,093 Variable frequency temperature limited heaters 113 2005
2005/0269,313 Temperature limited heaters with high power factors 144 2005
2006/0005,968 Temperature limited heaters with relatively constant current 98 2005
2006/0289,536 Subsurface electrical heaters using nitride insulation 144 2005
7,320,364 Inhibiting reflux in a heated well of an in situ conversion system 104 2005
7,357,180 Inhibiting effects of sloughing in wellbores 123 2005
7,370,704 Triaxial temperature limited heater 116 2005
7,383,877 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations 110 2005
7,424,915 Vacuum pumping of conductor-in-conduit heaters 116 2005
7,431,076 Temperature limited heaters using modulated DC power 116 2005
7,481,274 Temperature limited heaters with relatively constant current 105 2005
7,490,665 Variable frequency temperature limited heaters 110 2005
7,510,000 Reducing viscosity of oil for production from a hydrocarbon containing formation 108 2005
2006/0178,546 Method and apparatus for making a middle distillate product and lower olefins from a hydrocarbon feedstock 76 2006
2006/0191,820 Hydrocarbon cracking process for converting gas oil preferentially to middle distillate and lower olefins 74 2006
7,225,866 In situ thermal processing of an oil shale formation using a pattern of heat sources 168 2006
2006/0231,465 Systems, methods, and catalysts for producing a crude product 95 2006
7,426,959 Systems and methods for producing oil and/or gas 43 2006
2007/0045,266 In situ conversion process utilizing a closed loop heating system 137 2006
2007/0045,267 Subsurface connection methods for subsurface heaters 160 2006
2007/0045,268 Varying properties along lengths of temperature limited heaters 151 2006
2007/0108,200 Low temperature barrier wellbores formed using water flushing 128 2006
2007/0108,201 Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration 136 2006
2007/0119,098 Treatment of gas from an in situ conversion process 138 2006
2007/0133,959 Grouped exposed metal heaters 114 2006
2007/0133,960 In situ conversion process systems utilizing wellbores in at least two regions of a formation 132 2006
2007/0137,856 Double barrier system for an in situ conversion process 100 2006
2007/0137,857 Low temperature monitoring system for subsurface barriers 98 2006
2007/0144,732 Low temperature barriers for use with in situ processes 123 2006
2008/0217,321 Temperature limited heater utilizing non-ferromagnetic conductor 132 2006
7,435,037 Low temperature barriers with heat interceptor wells for in situ processes 126 2006
7,500,528 Low temperature barrier wellbores formed using water flushing 115 2006
7,527,094 Double barrier system for an in situ conversion process 117 2006
7,575,052 In situ conversion process utilizing a closed loop heating system 105 2006
7,575,053 Low temperature monitoring system for subsurface barriers 104 2006
2006/0289,340 METHODS FOR PRODUCING A TOTAL PRODUCT IN THE PRESENCE OF SULFUR 94 2006
2007/0000,810 METHOD FOR PRODUCING A CRUDE PRODUCT WITH REDUCED TAN 103 2006
7,360,588 Thermal processes for subsurface formations 109 2006
2007/0095,536 Cogeneration systems and processes for treating hydrocarbon containing formations 131 2006
2007/0095,537 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 138 2006
2007/0125,533 Methods of hydrotreating a liquid stream to remove clogging compounds 92 2006
2007/0127,897 Subsurface heaters with low sulfidation rates 141 2006
2007/0131,415 Solution mining and heating by oxidation for treating hydrocarbon containing formations 134 2006
2007/0131,419 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 90 2006
2007/0131,420 Methods of cracking a crude product to produce additional crude products 88 2006
2007/0131,428 Methods of filtering a liquid stream produced from an in situ heat treatment process 135 2006
2007/0221,377 Solution mining systems and methods for treating hydrocarbon containing formations 95 2006
2008/0017,370 Temperature limited heater with a conduit substantially electrically isolated from the formation 68 2006
2008/0107,577 Varying heating in dawsonite zones in hydrocarbon containing formations 58 2006
7,549,470 Solution mining and heating by oxidation for treating hydrocarbon containing formations 136 2006
7,556,095 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 135 2006
7,556,096 Varying heating in dawsonite zones in hydrocarbon containing formations 123 2006
7,559,367 Temperature limited heater with a conduit substantially electrically isolated from the formation 118 2006
7,559,368 Solution mining systems and methods for treating hydrocarbon containing formations 118 2006
7,562,706 Systems and methods for producing hydrocarbons from tar sands formations 117 2006
7,581,589 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 115 2006
7,584,789 Methods of cracking a crude product to produce additional crude products 111 2006
7,591,310 Methods of hydrotreating a liquid stream to remove clogging compounds 111 2006
7,635,025 Cogeneration systems and processes for treating hydrocarbon containing formations 100 2006
7,461,691 In situ recovery from a hydrocarbon containing formation 146 2007
2007/0284,108 Compositions produced using an in situ heat treatment process 78 2007
2007/0289,733 Wellhead with non-ferromagnetic materials 69 2007
2008/0017,380 Non-ferromagnetic overburden casing 91 2007
2008/0035,346 Methods of producing transportation fuel 87 2007
2008/0035,347 Adjusting alloy compositions for selected properties in temperature limited heaters 81 2007
2008/0035,705 Welding shield for coupling heaters 83 2007
2008/0038,144 High strength alloys 82 2007
2008/0173,442 Sulfur barrier for use with in situ processes for treating formations 108 2007
2008/0173,444 Alternate energy source usage for in situ heat treatment processes 118 2007
2008/0173,449 Sour gas injection for use with in situ heat treatment 79 2007
2008/0174,115 Power systems utilizing the heat of produced formation fluid 116 2007
7,533,719 Wellhead with non-ferromagnetic materials 120 2007
7,604,052 Compositions produced using an in situ heat treatment process 113 2007
7,610,962 Sour gas injection for use with in situ heat treatment 92 2007
7,631,689 Sulfur barrier for use with in situ processes for treating formations 104 2007
7,635,023 Time sequenced heating of multiple layers in a hydrocarbon containing formation 112 2007
7,673,786 Welding shield for coupling heaters 85 2007
7,683,296 Adjusting alloy compositions for selected properties in temperature limited heaters 84 2007
2009/0101,346 In situ recovery from a hydrocarbon containing formation 104 2007
7,735,935 In situ thermal processing of an oil shale formation containing carbonate minerals 82 2007
2008/0128,134 Producing drive fluid in situ in tar sands formations 104 2007
2008/0135,244 Heating hydrocarbon containing formations in a line drive staged process 102 2007
2008/0135,253 Treating tar sands formations with karsted zones 117 2007
2008/0135,254 In situ heat treatment process utilizing a closed loop heating system 104 2007
2008/0142,216 Treating tar sands formations with dolomite 115 2007
2008/0142,217 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 108 2007
2008/0185,147 Wax barrier for use with in situ processes for treating formations 101 2007
2008/0217,003 Gas injection to inhibit migration during an in situ heat treatment process 111 2007
2008/0217,004 Heating hydrocarbon containing formations in a checkerboard pattern staged process 90 2007
2008/0217,015 Heating hydrocarbon containing formations in a spiral startup staged sequence 94 2007
2008/0217,016 Creating fluid injectivity in tar sands formations 125 2007
2008/0236,831 Condensing vaporized water in situ to treat tar sands formations 116 2007
2008/0277,113 Heating tar sands formations while controlling pressure 113 2007
2008/0283,246 Heating tar sands formations to visbreaking temperatures 85 2007
2009/0014,180 Moving hydrocarbons through portions of tar sands formations with a fluid 120 2007
2009/0014,181 Creating and maintaining a gas cap in tar sands formations 121 2007
7,540,324 Heating hydrocarbon containing formations in a checkerboard pattern staged process 121 2007
7,562,707 Heating hydrocarbon containing formations in a line drive staged process 119 2007
7,631,690 Heating hydrocarbon containing formations in a spiral startup staged sequence 105 2007
7,635,024 Heating tar sands formations to visbreaking temperatures 101 2007
7,644,765 Heating tar sands formations while controlling pressure 83 2007
7,673,681 Treating tar sands formations with karsted zones 73 2007
7,677,310 Creating and maintaining a gas cap in tar sands formations 71 2007
7,677,314 Method of condensing vaporized water in situ to treat tar sands formations 70 2007
7,681,647 Method of producing drive fluid in situ in tar sands formations 85 2007
7,703,513 Wax barrier for use with in situ processes for treating formations 88 2007
7,717,171 Moving hydrocarbons through portions of tar sands formations with a fluid 78 2007
7,730,945 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 76 2007
7,730,946 Treating tar sands formations with dolomite 75 2007
7,730,947 Creating fluid injectivity in tar sands formations 76 2007
7,640,980 Thermal processes for subsurface formations 83 2008
2009/0084,547 DOWNHOLE BURNER SYSTEMS AND METHODS FOR HEATING SUBSURFACE FORMATIONS 92 2008
2009/0090,158 WELLBORE MANUFACTURING PROCESSES FOR IN SITU HEAT TREATMENT PROCESSES 107 2008
2009/0095,476 MOLTEN SALT AS A HEAT TRANSFER FLUID FOR HEATING A SUBSURFACE FORMATION 86 2008
2009/0095,477 HEATING SYSTEMS FOR HEATING SUBSURFACE FORMATIONS 92 2008
2009/0095,478 VARYING PROPERTIES OF IN SITU HEAT TREATMENT OF A TAR SANDS FORMATION BASED ON ASSESSED VISCOSITIES 105 2008
2009/0095,479 PRODUCTION FROM MULTIPLE ZONES OF A TAR SANDS FORMATION 105 2008
2009/0126,929 TREATING NAHCOLITE CONTAINING FORMATIONS AND SALINE ZONES 101 2008
2009/0189,617 CONTINUOUS SUBSURFACE HEATER TEMPERATURE MEASUREMENT 105 2008
2009/0194,269 THREE-PHASE HEATERS WITH COMMON OVERBURDEN SECTIONS FOR HEATING SUBSURFACE FORMATIONS 102 2008
2009/0194,333 RANGING METHODS FOR DEVELOPING WELLBORES IN SUBSURFACE FORMATIONS 100 2008
2009/0200,023 HEATING SUBSURFACE FORMATIONS BY OXIDIZING FUEL ON A FUEL CARRIER 104 2008
2009/0200,854 SOLUTION MINING AND IN SITU TREATMENT OF NAHCOLITE BEDS 101 2008
2010/0089,584 DOUBLE INSULATED HEATERS FOR TREATING SUBSURFACE FORMATIONS 51 2009
2010/0089,586 MOVABLE HEATERS FOR TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS 49 2009
 
Mobil Oil Corporation (24)
4,258,955 Process for in-situ leaching of uranium 73 1978
4,380,930 System for transmitting ultrasonic energy through core samples 185 1981
4,368,114 Octane and total yield improvement in catalytic cracking 123 1981
4,410,042 In-situ combustion method for recovery of heavy oil utilizing oxygen and carbon dioxide as initial oxidant 195 1981
4,549,396 Conversion of coal to electricity 273 1982
4,530,401 Method for maximum in-situ visbreaking of heavy oil 267 1982
4,429,745 Oil recovery method 204 1982
4,458,767 Method for directionally drilling a first well to intersect a second well 229 1982
4,598,392 Vibratory signal sweep seismic prospecting method and apparatus 166 1983
4,573,530 In-situ gasification of tar sands utilizing a combustible gas 261 1983
4,698,149 Enhanced recovery of hydrocarbonaceous fluids oil shale 195 1983
4,598,772 Method for operating a production well in an oxygen driven in-situ combustion oil recovery process 193 1983
4,577,690 Method of using seismic data to monitor firefloods 156 1984
4,598,770 Thermal recovery method for viscous oil 298 1984
4,669,542 Simultaneous recovery of crude from multiple zones in a reservoir 268 1984
4,766,958 Method of recovering viscous oil from reservoirs with multiple horizontal zones 181 1987
4,787,452 Disposal of produced formation fines during oil recovery 280 1987
4,982,786 Use of CO.sub.2 /steam to enhance floods in horizontal wellbores 258 1989
5,211,230 Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion 288 1992
5,339,904 Oil recovery optimization using a well having both horizontal and vertical sections 263 1992
5,377,756 Method for producing low permeability reservoirs using a single well 223 1993
5,411,086 Oil recovery by enhanced imbitition in low permeability reservoirs 180 1993
5,415,231 Method for producing low permeability reservoirs using steam 271 1994
5,431,224 Method of thermal stimulation for recovery of hydrocarbons 279 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 155 1978
4,274,487 Indirect thermal stimulation of production wells 277 1979
4,537,252 Method of underground conversion of coal 269 1984
4,662,439 Method of underground conversion of coal 268 1985
4,662,443 Combination air-blown and oxygen-blown underground coal gasification process 271 1985
4,756,367 Method for producing natural gas from a coal seam 260 1987
5,059,303 Oil stabilization 205 1989
5,133,406 Generating oxygen-depleted air useful for increasing methane production 116 1991
5,388,640 Method for producing methane-containing gaseous mixtures 273 1993
5,388,641 Method for reducing the inert gas fraction in methane-containing gaseous mixtures obtained from underground formations 270 1993
5,388,642 Coalbed methane recovery using membrane separation of oxygen from air 270 1993
5,388,643 Coalbed methane recovery using pressure swing adsorption separation 267 1993
5,388,645 Method for producing methane-containing gaseous mixtures 280 1993
5,439,054 Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation 276 1994
5,454,666 Method for disposing of unwanted gaseous fluid components within a solid carbonaceous subterranean formation 279 1994
5,566,755 Method for recovering methane from a solid carbonaceous subterranean formation 199 1995
 
Texaco Inc. (12)
4,524,826 Method of heating an oil shale formation 286 1982
4,592,423 Hydrocarbon stratum retorting means and method 267 1984
4,577,691 Method and apparatus for producing viscous hydrocarbons from a subterranean formation 118 1984
4,576,231 Method and apparatus for combating encroachment by in situ treated formations 286 1984
4,682,652 Producing hydrocarbons through successively perforated intervals of a horizontal well between two vertical wells 274 1986
5,102,551 Membrane process for treating a mixture containing dewaxed oil and dewaxing solvent 74 1991
5,093,002 Membrane process for treating a mixture containing dewaxed oil and dewaxing solvent 74 1991
5,199,490 Formation treating 83 1991
5,284,206 Formation treating 76 1992
5,632,336 Method for improving injectivity of fluids in oil reservoirs 270 1994
5,571,403 Process for extracting hydrocarbons from diatomite 184 1995
5,826,655 Method for enhanced recovery of viscous oil deposits 196 1996
 
Chevron Research Company (11)
4,299,086 Utilization of energy obtained by substoichiometric combustion of low heating value gases 280 1978
4,186,801 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 281 1978
4,250,962 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 269 1979
4,303,126 Arrangement of wells for producing subsurface viscous petroleum 187 1980
4,273,188 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 269 1980
4,381,641 Substoichiometric combustion of low heating value gases 303 1980
4,366,668 Substoichiometric combustion of low heating value gases 284 1981
4,363,361 Substoichiometric combustion of low heating value gases 275 1981
4,551,226 Heat exchanger antifoulant 81 1982
4,460,044 Advancing heated annulus steam drive 196 1982
4,828,031 In situ chemical stimulation of diatomite formations 210 1987
 
NICOLIA, JOSEPH (11)
2004/0118,056 Wedge-lock building blocks 1 2002
2004/0118,056 Wedge-lock building blocks 1 2002
2004/0118,056 Wedge-lock building blocks 1 2002
2004/0118,056 Wedge-lock building blocks 1 2002
2004/0118,056 Wedge-lock building blocks 1 2002
2004/0118,056 Wedge-lock building blocks 1 2002
2004/0118,056 Wedge-lock building blocks 1 2002
2004/0118,056 Wedge-lock building blocks 1 2002
2004/0118,056 Wedge-lock building blocks 1 2002
2004/0118,056 Wedge-lock building blocks 1 2002
2004/0118,056 Wedge-lock building blocks 1 2002
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (9)
4,984,594 Vacuum method for removing soil contamination utilizing surface electrical heating 330 1989
5,190,405 Vacuum method for removing soil contaminants utilizing thermal conduction heating 305 1990
5,229,583 Surface heating blanket for soil remediation 292 1992
5,318,116 Vacuum method for removing soil contaminants utilizing thermal conduction heating 310 1993
5,553,189 Radiant plate heater for treatment of contaminated surfaces 287 1994
5,656,239 Method for recovering contaminants from soil utilizing electrical heating 290 1995
6,102,622 Remediation method 286 1998
5,997,214 Remediation method 284 1998
6,485,232 Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system 267 2000
 
BAKER HUGHES INCORPORATED (8)
5,173,213 Corrosion and anti-foulant composition and method of use 84 1991
5,782,301 Oil well heater cable 120 1996
6,088,294 Drilling system with an acoustic measurement-while-driving system for determining parameters of interest and controlling the drilling direction 209 1997
6,084,826 Measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers 171 1998
6,078,868 Reference signal encoding for seismic while drilling measurement 148 1999
6,427,124 Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundaries 151 1999
6,588,266 Monitoring of downhole parameters and tools utilizing fiber optics 157 2001
6,585,046 Live well heater cable 170 2001
 
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 209 1981
4,489,782 Viscous oil production using electrical current heating and lateral drain holes 296 1983
4,597,444 Method for excavating a large diameter shaft into the earth and at least partially through an oil-bearing formation 194 1984
4,662,437 Electrically stimulated well production system with flexible tubing conductor 178 1985
4,640,353 Electrode well and method of completion 212 1986
4,651,825 Enhanced well production 274 1986
4,744,245 Acoustic measurements in rock formations for determining fracture orientation 163 1986
 
EXXONMOBIL UPSTREAM RESEARCH COMPANY (6)
5,339,897 Recovery and upgrading of hydrocarbon utilizing in situ combustion and horizontal wells 327 1992
6,918,444 Method for production of hydrocarbons from organic-rich rock 115 2001
6,755,251 Downhole gas separation method and system 96 2002
7,128,150 Acid gas disposal method 95 2002
7,331,385 Methods of treating a subterranean formation to convert organic matter into producible hydrocarbons 93 2004
2007/0246,994 In situ co-development of oil shale with mineral recovery 102 2007
 
NOVELIS INC. (6)
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
 
Standard Oil Company (Indiana) (6)
4,265,307 Shale oil recovery 265 1978
4,353,418 In situ retorting of oil shale 283 1980
4,401,163 Modified in situ retorting of oil shale 196 1980
4,425,967 Ignition procedure and process for in situ retorting of oil shale 157 1981
4,457,374 Transient response process for detecting in situ retorting conditions 249 1982
4,552,214 Pulsed in situ retorting in an array of oil shale retorts 196 1984
 
UENTECH CORPORATION (6)
4,821,798 Heating system for rathole oil well 147 1987
4,793,409 Method and apparatus for forming an insulated oil well casing 105 1987
5,070,533 Robust electrical heating systems for mineral wells 82 1990
5,099,918 Power sources for downhole electrical heating 282 1991
5,621,844 Electrical heating of mineral well deposits using downhole impedance transformation networks 325 1995
5,713,415 Low flux leakage cables and cable terminations for A.C. electrical heating of oil deposits 285 1996
 
WORLD ENERGY SYSTEMS, INC. (6)
4,199,024 Multistage gas generator 151 1979
4,597,441 Recovery of oil by in situ hydrogenation 308 1984
4,691,771 Recovery of oil by in-situ combustion followed by in-situ hydrogenation 283 1986
6,016,867 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking 308 1998
6,016,868 Production of synthetic crude oil from heavy hydrocarbons recovered by in situ hydrovisbreaking 313 1998
6,328,104 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking 308 2000
 
CARBONIUM S.R.L. (5)
2004/0213,727 Device and method for production of carbon nanotubes, fullerene and their derivatives 2 2003
2004/0213,727 Device and method for production of carbon nanotubes, fullerene and their derivatives 2 2003
2004/0213,727 Device and method for production of carbon nanotubes, fullerene and their derivatives 2 2003
2004/0213,727 Device and method for production of carbon nanotubes, fullerene and their derivatives 2 2003
2004/0213,727 Device and method for production of carbon nanotubes, fullerene and their derivatives 2 2003
 
DELAWARE CAPITAL FORMATION, INC. (5)
4,717,814 Slotted autoregulating heater 172 1984
4,623,401 Heat treatment with an autoregulating heater 202 1986
4,814,587 High power self-regulating heater 159 1986
4,794,226 Self-regulating porous heater device 146 1986
5,073,625 Self-regulating porous heating device 150 1988
 
HALLIBURTON ENERGY SERVICES, INC. (5)
5,899,958 Logging while drilling borehole imaging and dipmeter device 235 1995
5,926,437 Method and apparatus for seismic exploration 148 1997
6,951,250 Sealant compositions and methods of using the same to isolate a subterranean zone from a disposal well 69 2003
7,147,057 Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore 120 2003
7,337,841 Casing comprising stress-absorbing materials and associated methods of use 42 2004
 
UOP LLC (5)
4,310,440 Crystalline metallophosphate compositions 458 1980
4,440,871 Crystalline silicoaluminophosphates 744 1982
4,500,651 Titanium-containing molecular sieves 176 1983
4,686,029 Dewaxing catalysts and processes employing titanoaluminosilicate molecular sieves 83 1985
5,802,870 Sorption cooling process and system 85 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 300 1987
4,983,319 Preparation of low-viscosity improved stable crude oil transport emulsions 281 1988
5,340,467 Process for recovery of hydrocarbons and rejection of sand 314 1991
5,316,664 Process for recovery of hydrocarbons and rejection of sand 311 1992
 
CHEVRON RESEARCH AND TECHNOLOGY COMPANY (4)
5,054,551 In-situ heated annulus refining process 205 1990
5,085,276 Production of oil from low permeability formations by sequential steam fracturing 212 1990
5,145,003 Method for in-situ heated annulus refining process 221 1991
5,305,829 Oil production from diatomite formations by fracture steamdrive 210 1992
 
ENERGY, UNITED STATES DEPARTMENT OF (4)
4,385,661 Downhole steam generator with improved preheating, combustion and protection features 169 1981
2008/0035,348 Temperature limited heaters using phase transformation of ferromagnetic material 60 2007
7,597,147 Temperature limited heaters using phase transformation of ferromagnetic material 109 2007
2009/0078,461 DRILLING SUBSURFACE WELLBORES WITH CUTTING STRUCTURES 88 2008
 
Exxon Research and Engineering Company (4)
4,458,757 In situ shale-oil recovery process 261 1983
5,275,726 Spiral wound element for separation 92 1992
5,935,421 Continuous in-situ combination process for upgrading heavy oil 225 1996
6,110,358 Process for manufacturing improved process oils using extraction of hydrotreated distillates 190 1999
 
IIT Research Institute (4)
RE30738 Apparatus and method for in situ heat processing of hydrocarbonaceous formations 319 1980
4,498,535 Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations with a controlled parameter line 264 1982
4,545,435 Conduction heating of hydrocarbonaceous formations 193 1983
5,621,845 Apparatus for electrode heating of earth for recovery of subsurface volatiles and semi-volatiles 141 1995
 
Cities Service Company (3)
4,216,079 Emulsion breaking with surfactant recovery 113 1979
4,412,585 Electrothermal process for recovering hydrocarbons 278 1982
4,501,445 Method of in-situ hydrogenation of carbonaceous material 277 1983
 
Indugas, Inc. (3)
4,913,065 In situ thermal waste disposal system 209 1989
5,020,596 Enhanced oil recovery system with a radiant tube heater 265 1990
5,082,055 Gas fired radiant tube heater 283 1991
 
INSTITUT FRANCAIS DU PETROLE (3)
5,217,075 Method and device for carrying out interventions in wells where high temperatures prevail 76 1991
5,363,094 Stationary system for the active and/or passive monitoring of an underground deposit 209 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 66 2001
 
TUBARC TECHNOLOGIES, LLC (3)
6,766,817 Fluid conduction utilizing a reversible unsaturated siphon with tubarc porosity action 773 2002
6,918,404 Irrigation and drainage based on hydrodynamic unsaturated fluid flow 483 2004
7,066,586 Ink refill and recharging system 467 2004
 
TYCO INTERNATIONAL LTD., A CORPORATION OF BERMUDA (3)
4,698,583 Method of monitoring a heater for faults 151 1985
4,849,611 Self-regulating heater employing reactive components 162 1985
4,785,163 Method for monitoring a heater 145 1987
 
UNIVERSITY OF UTAH (3)
4,324,292 Process for recovering products from oil shale 270 1980
4,396,062 Apparatus and method for time-domain tracking of high-speed chemical reactions 313 1980
4,409,090 Process for recovering products from tar sand 282 1982
 
Z-SEIS CORPORATION (3)
6,269,310 System for eliminating headwaves in a tomographic process 142 1999
6,193,010 System for generating a seismic signal in a borehole 144 1999
6,196,350 Apparatus and method for attenuating tube waves in a borehole 141 1999
 
ALBERTA INNOVATES - ENERGY AND ENVIRONMENT SOLUTIONS (2)
5,456,315 Horizontal well gravity drainage combustion process for oil recovery 212 1994
6,026,914 Wellbore profiling system 167 1998
 
ALBERTA INNOVATES - TECHNOLOGY FUTURES (2)
6,257,334 Steam-assisted gravity drainage heavy oil recovery process 128 1999
6,412,559 Process for recovering methane and/or sequestering fluids 274 2000
 
EDWARDS DEVELOPMENT CORP., A CORP OF NV. (2)
4,817,711 System for recovery of petroleum from petroleum impregnated media 342 1987
4,912,971 System for recovery of petroleum from petroleum impregnated media 213 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 268 1986
5,554,453 Carbonate fuel cell system with thermally integrated gasification 295 1995
 
EOR INTERNATIONAL, INC. (2)
4,524,827 Single well stimulation for the recovery of liquid hydrocarbons from subsurface formations 310 1983
5,751,895 Selective excitation of heating electrodes for oil wells 263 1996
 
HALLIBURTON COMPANY (2)
4,445,574 Continuous borehole formed horizontally through a hydrocarbon producing formation 188 1982
4,808,925 Three magnet casing collar locator 189 1987
 
LOS ALAMOS NATIONAL SECURITY, LLC (2)
6,910,537 Canister, sealing method and composition for sealing a borehole 77 2003
2008/0006,410 Kerogen Extraction From Subterranean Oil Shale Resources 82 2007
 
MASTER CORPORATION, P.O. BOX 585, AUBURN, IN 46706 (2)
RE39077 Acid gas disposal 88 2002
RE39244 Acid gas disposal 86 2004
 
MCDERMOTT TECHNOLOGY, INC. (2)
5,760,307 EMAT probe and technique for weld inspection 195 1995
6,155,117 Edge detection and seam tracking with EMATs 190 1999
 
METCAL, INC. (2)
4,752,673 Autoregulating heater 170 1982
4,695,713 Autoregulating, electrically shielded heater 194 1983
 
Occidental Oil Shale, Inc. (2)
4,437,519 Reduction of shale oil pour point 190 1981
4,605,489 Upgrading shale oil by a combination process 202 1985
 
OSUM OIL SANDS CORP. (2)
2007/0044,957 Method for underground recovery of hydrocarbons 62 2006
2008/0078,552 METHOD OF HEATING HYDROCARBONS 67 2007
 
Phillips Petroleum Company (2)
4,474,238 Method and apparatus for treatment of subsurface formations 206 1982
4,885,080 Process for demetallizing and desulfurizing heavy crude oil 205 1988
 
PRATS, MICHAEL (2)
5,984,010 Hydrocarbon recovery systems and methods 269 1997
6,173,775 Systems and methods for hydrocarbon recovery 269 1999
 
PRESSSOL LTD. (2)
6,854,534 Two string drilling system using coil tubing 141 2003
7,204,327 Reverse circulation directional and horizontal drilling using concentric drill string 130 2003
 
PRODUCTION TECHNOLOGIES INTERNATIONAL, INC. (2)
4,716,960 Method and system for introducing electric current into a well 323 1986
5,207,273 Method and apparatus for pumping wells 295 1990
 
Raychem Corporation (2)
4,417,782 Fiber optic temperature sensing 162 1980
4,701,587 Shielded heating element having intrinsic temperature control 200 1981
 
RAYCHEM LIMITED (2)
4,985,313 Wire and cable 170 1986
5,209,987 Wire and cable 172 1990
 
RAYTHEON COMPANY (2)
4,457,365 In situ radio frequency selective heating system 314 1981
4,487,257 Apparatus and method for production of organic products from kerogen 143 1981
 
REG SYNTHETIC FUELS, LLC (2)
6,172,124 Process for converting gas to liquids 274 1997
6,085,512 Synthesis gas production system and method 277 1999
 
RWE-DEA AKTIENGESELLSCHAFT FUR MINERALOEL UND CHEMIE (2)
4,252,191 Method of recovering petroleum and bitumen from subterranean reservoirs 277 1979
4,390,973 Method for determining the extent of subsurface reaction involving acoustic signals 157 1981
 
Thermon Manufacturing Company (2)
4,645,906 Reduced resistance skin effect heat generating system 163 1985
5,512,732 Switch controlled, zone-type heating cable and method 217 1993
 
THOMPSON, GREG H. (2)
4,185,692 Underground linkage of wells for production of coal in situ 160 1978
4,250,230 Generating electricity from coal in situ 299 1979
 
Union Oil Company of California (2)
5,126,037 Geopreater heating method and apparatus 288 1990
5,723,423 Solvent soaps and methods employing same 124 1996
 
UT-BATTELLE, LLC (2)
7,153,373 Heat and corrosion resistant cast CF8C stainless steel with improved high temperature strength and ductility 112 2002
2008/0078,551 Liquid Metal Heat Exchanger for Efficient Heating of Soils and Geologic Formations 67 2006
 
ADVANCED ENGINEERING SOLUTIONS LTD. (1)
6,102,137 Apparatus and method for forming ducts and passageways 165 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 143 1990
 
AIR PRODUCTS AND CHEMICALS, INC. (1)
4,734,115 Low pressure process for C.sub.3.sup.+ liquids recovery from process product gas 196 1986
 
ALBERTA RESEARCH COUNCIL INC. (1)
4,228,854 Enhanced oil recovery using electrical means 274 1979
 
AMERICAN SHALE OIL, LLC (1)
2007/0193,743 In situ method and system for extraction of oil from shale 34 2007
 
Aminoil, USA, Inc. (1)
4,277,416 Process for producing methanol 275 1977
 
AMP Incorporated (1)
5,065,501 Generating electromagnetic fields in a self regulating temperature heater by positioning of a current return bus 147 1990
 
ANADARKO PETROLEUM CORPORATION (1)
2003/0029,617 Apparatus, method and system for single well solution-mining 174 2001
 
ASHLAND INC. (1)
5,648,305 Process for improving the effectiveness of process catalyst 74 1996
 
BATTELLE MEMORIAL INSTITUTE (1)
5,545,803 Heating of solid earthen material, measuring moisture and resistivity 176 1994
 
BETZ LABORATORIES, INC. (1)
4,840,720 Process for minimizing fouling of processing equipment 80 1988
 
BETZDEARBORN INC. (1)
5,282,957 Methods for inhibiting polymerization of hydrocarbons utilizing a hydroxyalkylhydroxylamine 81 1992
 
BHP MINERALS INTERNATIONAL (1)
5,968,349 Extraction of bitumen from bitumen froth and biotreatment of bitumen froth tailings generated from tar sands 322 1998
 
Carbotek, Inc. (1)
4,694,907 Thermally-enhanced oil recovery method and apparatus 310 1986
 
CENTRIFLOW LLC (1)
2002/0153,141 Method for pumping fluids 151 2001
 
Chambers Development Co., Inc. (1)
5,295,763 Method for controlling gas migration from a landfill 193 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 108 1999
 
COMPUTALOG LTD. (1)
6,192,748 Dynamic orienting reference system for directional drilling 214 1998
 
Concept R.K.K. Limited (1)
4,860,544 Closed cryogenic barrier for containment of hazardous material migration in the earth 306 1988
 
Concept RKK, Limited (1)
4,974,425 Closed cryogenic barrier for containment of hazardous material migration in the earth 304 1989
 
CONOCO INC. (1)
4,418,752 Thermal oil recovery with solvent recirculation 192 1982
 
CONOCOPHILLIPS COMPANY (1)
5,411,104 Coalbed methane drilling 336 1994
 
COOPER CAMERON CORPORATION (1)
4,474,236 Method and apparatus for remote installations of dual tubing strings in a subsea well 105 1983
 
CRI International, Inc. (1)
5,688,736 Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst 128 1995
 
DA QUING PETROLEUM ADMINISTRATION BUREAU (1)
6,439,308 Foam drive method 70 2000
 
DCNS SA (1)
5,861,137 Steam reformer with internal hydrogen purification 461 1996
 
DOVER TECHNOLOGIES INTERNATIONAL, INC. (1)
5,182,427 Self-regulating heater utilizing ferrite-type body 172 1990
 
DOWELL SCHLUMBERGER INCORPORATED (1)
4,940,095 Deployment/retrieval method and apparatus for well tools used with coiled tubing 130 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 84 1987
 
DSM N.V. (1)
4,254,297 Process for the conversion of dimethyl ether 85 1979
 
E.R. JOHNSON ASSOCIATES, INC. A CORP. OF DISTRICT OF COLUMBIA (1)
4,428,700 Method for disposing of waste materials 211 1981
 
EARTH TOOL COMPANY, LLC (1)
2002/0112,890 Conduit pulling apparatus and method for use in horizontal drilling 164 2002
 
EFFECTIVE EXPLORATION LLC (1)
2004/0035,582 System and method for subterranean access 180 2002
 
Electric Power Research Institute, Inc. (1)
5,911,898 Method and apparatus for providing multiple autoregulated temperatures 145 1995
 
ELECTRO-PETROLEUM, INC. (1)
4,382,469 Method of in situ gasification 89 1981
 
Electroflood Company (1)
4,199,025 Method and apparatus for tertiary recovery of oil 93 1977
 
Elektra Energie A.G. (1)
4,456,065 Heavy oil recovering 309 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 266 1993
 
ENGELHARD CORPORATION (1)
4,927,857 Method of methanol production 302 1989
 
Eureka Oil ASA (1)
6,499,536 Method to increase the oil production from an oil reservoir 209 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 64 1990
 
EXXON PRODUCTION RESEARCH COMPANY (1)
4,390,067 Method of treating reservoirs containing very viscous crude oil or bitumen 378 1981
 
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY (1)
2002/0112,987 Slurry hydroprocessing for heavy oil upgrading using supported slurry catalysts 224 2000
 
FINE PARTICLE TECHNOLOGY CORP. (1)
4,926,941 Method of producing tar sand deposits containing conductive layers 235 1989
 
FRAMO ENGINEERING AS (1)
5,285,846 Thermal mineral extraction system 273 1992
 
GAS TECHNOLOGY INSTITUTE (1)
5,759,022 Method and system for reducing NO.sub.x and fuel emissions in a furnace 126 1995
 
Gen Syn Fuels (1)
7,048,051 Recovery of products from oil shale 104 2003
 
GENERAL ELECTRIC COMPANY (1)
7,124,584 System and method for heat recovery from geothermal source of heat 69 2005
 
GEOPETROL EQUIPMENT LTD. (1)
5,985,138 Tar sands extraction process 280 1998
 
GULF CANADA RESOURCES LIMITED/RESSOURCES GULF CANADA LIMITEE (1)
4,501,326 In-situ recovery of viscous hydrocarbonaceous crude oil 264 1983
 
GULF OIL CORPORATION, PITTSBURGH (1)
4,637,464 In situ retorting of oil shale with pulsed water purge 282 1984
 
GULF RESEARCH AND DEVELOPMENT COMPANY, A CORP. OF DE. (1)
4,299,285 Underground gasification of bituminous coal 264 1980
 
HARMON, JERALD L. (1)
6,584,406 Downhole process control method utilizing seismic communication 200 2000
 
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANY (1)
4,549,073 Current controller for resistive heating element 70 1981
 
Hrubetz Environmental Services, Inc. (1)
5,011,329 In situ soil decontamination method and apparatus 198 1990
 
ILLINOIS TOOL WORKS INC. (1)
6,313,431 Plasma cutter for auxiliary power output of a power source 57 2000
 
IMPERIAL ENERGY CORPORATION (1)
4,248,306 Geothermal petroleum refining 109 1979
 
INDEPENDENT ENERGY PARTNERS, INC. (1)
6,684,948 Apparatus and method for heating subterranean formations using fuel cells 200 2002
 
Intercontinental Econergy Associates, Inc. (1)
4,452,491 Recovery of hydrocarbons from deep underground deposits of tar sands 165 1981
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
4,577,503 Method and device for detecting a specific acoustic spectral feature 168 1984
 
International Coal Refining Company (1)
4,397,732 Process for coal liquefaction employing selective coal feed 263 1982
 
Iris Associates (1)
4,256,945 Alternating current electrically resistive heating element having intrinsic temperature control 303 1979
 
ITT RESEARCH INSTITUTE (1)
4,485,869 Recovery of liquid hydrocarbons from oil shale by electromagnetic heating in situ 332 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 130 1982
 
JUDD, DANIEL (1)
4,856,587 Recovery of oil from oil-bearing formation by continually flowing pressurized heated gas through channel alongside matrix 271 1988
 
Justheim Pertroleum Company (1)
4,384,614 Method of retorting oil shale by velocity flow of super-heated air 213 1981
 
KAI TECHNOLOGIES, INC. (1)
5,152,341 Electromagnetic method and apparatus for the decontamination of hazardous material-containing volumes 117 1991
 
KELLOGG BROWN & ROOT, INC. (1)
6,357,526 Field upgrading of heavy oil and bitumen 220 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 101 1991
 
Kraftwerk Union Aktiengesellschaft (1)
4,608,818 Medium-load power-generating plant with integrated coal gasification plant 272 1984
 
KRUPP KOPPERS GMBH (1)
4,994,093 Method of producing methanol synthesis gas 269 1990
 
LATJET SYSTEMS LLC (1)
6,283,230 Method and apparatus for lateral well drilling utilizing a rotating nozzle 100 1999
 
LOCKHEED MARTIN CORPORATION (1)
6,467,543 System and process for secondary hydrocarbon recovery 200 2000
 
LONGYEAR COMPANY (1)
4,823,890 Reverse circulation bit apparatus 147 1988
 
M.W. KELLOGG COMPANY, THE (1)
4,407,973 Methanol from coal and natural gas 270 1982
 
Magrange, Inc. (1)
5,064,006 Downhole combination tool 300 1988
 
MAST AUTOMATION, INC. (1)
5,777,229 Sensor transport system for combination flash butt welder 187 1996
 
MEGGITT AVIOINICS, INC. (1)
5,828,797 Fiber optic linked flame sensor 168 1996
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
4,412,124 Electrode unit for electrically heating underground hydrocarbon deposits 266 1981
 
Motoren-Werke Mannheim AG (1)
4,378,048 Substoichiometric combustion of low heating value gases using different platinum catalysts 266 1981
 
MUELLER, THOMAS D. (1)
4,572,229 Variable proportioner 69 1984
 
NALCO COMPANY (1)
5,654,261 Permeability modifying composition for use in oil recovery 79 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 285 1995
 
NEXANS (1)
2002/0028,070 HEATING SYSTEM FOR CRUDE OIL TRANSPORTING METALLIC TUBES 143 1999
 
Nippondenso Co., Ltd. (1)
4,639,712 Sheathed heater 62 1985
 
NKK Corporation (1)
5,261,490 Method for dumping and disposing of carbon dioxide gas and apparatus therefor 279 1992
 
NOWSCO WELL SERVICE LTD. (1)
6,015,015 Insulated and/or concentric coiled tubing 327 1997
 
OCCIDENTAL SHALE INC. (1)
4,623,444 Upgrading shale oil by a combination process 202 1985
 
Oil Chem Technologies (1)
6,022,834 Alkaline surfactant polymer flooding composition and process 114 1997
 
OIL SANDS UNDERGROUND MINING, INC. (1)
2008/0017,416 METHOD OF DRILLING FROM A SHAFT FOR UNDERGROUND RECOVERY OF HYDROCARBONS 69 2007
 
OIL STATES ENERGY SERVICES, L.L.C. (1)
6,516,891 Dual string coil tubing injector assembly 96 2001
 
Oil Trieval Corporation (1)
4,305,463 Oil recovery method and apparatus 286 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 273 1985
 
PARHELION, INC. (1)
5,097,903 Method for recovering intractable petroleum from subterranean formations 213 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 31 1995
 
Patton Consulting, Inc. (1)
5,103,920 Surveying system and method for locating target subterranean bodies 217 1990
 
PETROLEO BRASILEIRO S.A. - PETROBRAS (1)
5,182,792 Process of electric pipeline heating utilizing heating elements inserted in pipelines 263 1991
 
PIRSON, JACQUE (1)
4,491,179 Method for oil recovery by in situ exfoliation drive 156 1982
 
QUICK CONNECTORS, INC. (1)
5,289,882 Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas 295 1991
 
Ramcor, Inc. (1)
4,197,911 Process for in situ coal gasification 263 1978
 
RAMEX SYN-FUELS INTERNATIONAL, INC. (1)
4,928,765 Method and apparatus for shale gas recovery 282 1988
 
Rangewest Technologies Ltd. (1)
6,039,121 Enhanced lift method and apparatus for the production of hydrocarbons 158 1997
 
Raychem GmbH (1)
4,733,057 Sheet heater 170 1986
 
RAYCHEM S.A. (1)
5,579,575 Method and apparatus for forming an electrical connection 149 1994
 
RED OAK PARTNERSHIP, L.P., THE (1)
5,435,666 Methods for isolating a water table and for soil remediation 208 1993
 
Resource Technology Associates (1)
5,008,085 Apparatus for thermal treatment of a hydrocarbon stream 272 1989
 
RKK, LTD (1)
5,050,386 Method and apparatus for containment of hazardous material migration in the earth 298 1990
 
ROBERT L.MAGNIE AND ASSOCIATES,INC. A CORP OF COLO. (1)
4,183,405 Enhanced recoveries of petroleum and hydrogen from underground reservoirs 286 1978
 
ROCKWELL INTERNATIONAL CORPORATION (1)
4,498,531 Emission controller for indirect fired downhole steam generators 127 1982
 
S-CAL RESEARCH CORPORATION (1)
4,706,751 Heavy oil recovery process 265 1986
 
SCHLUMBERGER TECHNOLOGIES, INC. (1)
6,354,373 Expandable tubing for a well bore hole and method of expanding 404 1998
 
SCHLUMBERGER TECHNOLOGY CORPORATION (1)
6,318,469 Completion equipment having a plurality of fluid paths for use in a well 20 2000
 
SCIENCE & ENGINEERING ASSOCIATES, INC. (1)
6,035,701 Method and system to locate leaks in subsurface containment structures using tracer gases 194 1998
 
Scientific Engineering Instruments, Inc. (1)
5,349,859 Method and apparatus for measuring acoustic wave velocity using impulse response 267 1991
 
Scioto County Regional Water District #1 (1)
6,422,318 Horizontal well system 180 2000
 
SCOTOIL SERVICES LIMITED (1)
6,805,194 Gas and oil production 138 2002
 
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. (1)
4,605,680 Conversion of synthesis gas to diesel fuel and gasoline 274 1985
 
Societe Nationale Elf Aquitaine (1)
4,513,816 Sealing system for a well bore in which a hot fluid is circulated 263 1984
 
SOLENIS TECHNOLOGIES, L.P. (1)
6,417,268 Method for making hydrophobically associative polymers, methods of use and compositions 78 1999
 
SOUTHERN CALIFORNIA GAS COMPANY (1)
5,769,569 In-situ thermal desorption of heavy hydrocarbons in vadose zone 157 1996
 
Sperika Enterprises Ltd. (1)
5,854,472 Low-voltage and low flux density heating system 54 1996
 
Steel Ventures, L.L.C. (1)
7,032,809 Seam-welded metal pipe and method of making the same without seam anneal 90 2003
 
STILL-MAN HEATING PRODUCTS, INC. (1)
5,066,852 Thermoplastic end seal for electric heating elements 170 1990
 
Sulcon, Inc. (1)
4,518,548 Method of overlaying sulphur concrete on horizontal and vertical surfaces 185 1983
 
SYNFUEL, A LIMITED PARTNERSHIP OF IN, A CORP. OF IN. (1)
4,401,162 In situ oil shale process 125 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 354 1997
 
Terra Tek, Inc. (1)
4,384,613 Method of in-situ retorting of carbonaceous material for recovery of organic liquids and gases 283 1980
 
The Babcock & Wilcox Company (1)
4,848,924 Acoustic pyrometer 280 1987
 
The Badger Company, Inc. (1)
4,193,451 Method for production of organic products from kerogen 277 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 251 1990
 
The BOC Group, Inc. (1)
5,332,036 Method of recovery of natural gases from underground coal formations 139 1992
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5,525,322 Method for simultaneous recovery of hydrogen from water and from hydrocarbons 324 1994
 
THE TEXAS A&M UNIVERSITY SYSTEM (1)
5,305,239 Ultrasonic non-destructive evaluation of thin specimens 187 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 208 1996
 
Tokyo Shibaura Denki Kabushiki Kaisha (1)
4,280,046 Sheath heater 59 1979
 
TOMOSEIS, INC. (1)
6,388,947 Multi-crosswell profile 3D imaging and method 175 1998
 
TRANSPACIFIC INFORMATION, LLC (1)
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TUBEL TECHNOLOGIES, INC. (1)
6,913,079 Method and system for monitoring smart structures utilizing distributed optical sensors 202 2001
 
TYCO ELECTRONICS CORPORATION (1)
6,288,372 Electric cable having braidless polymeric ground plane providing fault detection 175 1999
 
Uentech International Corporation (1)
6,353,706 Optimum oil-well casing heating 214 2000
 
UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION (1)
4,776,638 Method and apparatus for conversion of coal in situ 307 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 165 1979
 
W. B. COMBUSTION, INC. (1)
4,401,099 Single-ended recuperative radiant tube assembly and method 139 1980
 
WESTERN ATLAS INTERNATIONAL, INC. (1)
4,282,587 Method for monitoring the recovery of minerals from shallow geological formations 161 1979
 
WESTERN RESEARCH INSTITUTE (1)
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WORCESTER POLYTECHNIC INSTITUTE (1)
6,152,987 Hydrogen gas-extraction module and method of fabrication 310 1998
 
Other [Check patent profile for assignment information] (44)
4,228,853 Petroleum production method 147 1978
4,243,101 Coal gasification method 272 1978
4,446,917 Method and apparatus for producing viscous or waxy crude oils 151 1979
4,306,621 Method for in situ coal gasification operations 272 1980
4,423,311 Electric heating apparatus for de-icing pipes 274 1981
4,444,255 Apparatus and process for the recovery of oil 268 1981
4,344,483 Multiple-site underground magnetic heating of hydrocarbons 278 1981
4,444,258 In situ recovery of oil from oil shale 279 1981
4,455,215 Process for the geoconversion of coal into oil 154 1982
4,442,896 Treatment of underground beds 236 1982
4,479,541 Method and apparatus for recovery of oil, gas and mineral deposits by panel opening 253 1982
4,609,041 Well hot oil system 137 1983
4,538,682 Method and apparatus for removing oil well paraffin 149 1983
4,762,425 System for temperature profile measurement in large furnances and kilns and method therefor 277 1987
4,895,206 Pulsed in situ exothermic shock wave and retorting process for hydrocarbon recovery and detoxification of selected wastes 276 1989
5,027,896 Method for in-situ recovery of energy raw material by the introduction of a water/oxygen slurry 179 1990
5,082,054 In-situ tuned microwave oil extraction process 376 1990
5,217,076 Method and apparatus for improved recovery of oil from porous, subsurface deposits (targevcir oricess) 380 1991
5,360,067 Vapor-extraction system for removing hydrocarbons from soil 181 1993
5,400,430 Method for injection well stimulation 142 1994
5,458,774 Corrugated spiral membrane module 77 1994
5,624,188 Acoustic thermometer 276 1994
5,823,256 Ferrule--type fitting for sealing an electrical conduit in a well head barrier 72 1996
6,112,808 Method and apparatus for subterranean thermal conditioning 262 1997
5,984,582 Method of extracting a hollow unit laid in the ground 166 1997
5,879,110 Methods for encapsulating buried waste in situ with molten wax 116 1998
6,942,032 Resistive down hole heating tool 64 2003
7,114,880 Process for the excavation of buried waste 96 2004
2005/0269,091 Reducing viscosity of oil for production from a hydrocarbon containing formation 107 2005
2008/0283,241 Downhole burner wells for in situ conversion of organic-rich rock formations 113 2008
2009/0071,652 IN SITU HEAT TREATMENT FROM MULTIPLE LAYERS OF A TAR SANDS FORMATION 88 2008
2009/0090,509 IN SITU RECOVERY FROM RESIDUALLY HEATED SECTIONS IN A HYDROCARBON CONTAINING FORMATION 92 2008
2009/0095,480 IN SITU HEAT TREATMENT OF A TAR SANDS FORMATION AFTER DRIVE PROCESS TREATMENT 85 2008
2009/0120,646 ELECTRICALLY ISOLATING INSULATED CONDUCTOR HEATER 102 2008
2009/0194,282 IN SITU OXIDATION OF SUBSURFACE FORMATIONS 98 2008
2009/0194,286 MULTI-STEP HEATER DEPLOYMENT IN A SUBSURFACE FORMATION 97 2008
2009/0194,287 INDUCTION HEATERS USED TO HEAT SUBSURFACE FORMATIONS 99 2008
2009/0194,329 METHODS FOR FORMING WELLBORES IN HEATED FORMATIONS 105 2008
2009/0194,524 METHODS FOR FORMING LONG SUBSURFACE HEATERS 102 2008
2009/0200,022 CRYOGENIC TREATMENT OF GAS 99 2008
2009/0200,025 HIGH TEMPERATURE METHODS FOR FORMING OXIDIZER FUEL 80 2008
2009/0200,031 IRREGULAR SPACING OF HEAT SOURCES FOR TREATING HYDROCARBON CONTAINING FORMATIONS 101 2008
2009/0200,290 VARIABLE VOLTAGE LOAD TAP CHANGING TRANSFORMER 100 2008
2009/0038,795 Hydrocarbon Recovery From Impermeable Oil Shales Using Sets of Fluid-Heated Fractures 81 2008

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SHELL OIL COMPANY (61)
8,224,165 Temperature limited heater utilizing non-ferromagnetic conductor 20 2006
8,381,806 Joint used for coupling long heaters 6 2007
8,083,813 Methods of producing transportation fuel 33 2007
8,791,396 Floating insulated conductors for heating subsurface formations 0 2008
8,662,175 Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities 1 2008
8,459,359 Treating nahcolite containing formations and saline zones 11 2008
8,381,815 Production from multiple zones of a tar sands formation 14 2008
8,327,681 Wellbore manufacturing processes for in situ heat treatment processes 5 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 20 2008
8,272,455 Methods for forming wellbores in heated formations 7 2008
8,240,774 Solution mining and in situ treatment of nahcolite beds 22 2008
8,196,658 Irregular spacing of heat sources for treating hydrocarbon containing formations 29 2008
8,162,059 Induction heaters used to heat subsurface formations 32 2008
8,146,661 Cryogenic treatment of gas 34 2008
8,146,669 Multi-step heater deployment in a subsurface formation 31 2008
8,113,272 Three-phase heaters with common overburden sections for heating subsurface formations 13 2008
8,627,887 In situ recovery from a hydrocarbon containing formation 1 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 32 2009
8,172,335 Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations 27 2009
8,162,405 Using tunnels for treating subsurface hydrocarbon containing formations 29 2009
8,151,907 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations 32 2009
8,450,540 Compositions produced using an in situ heat treatment process 11 2009
8,353,347 Deployment of insulated conductors for treating subsurface formations 5 2009
8,281,861 Circulated heated transfer fluid heating of subsurface hydrocarbon formations 20 2009
8,267,170 Offset barrier wells in subsurface formations 15 2009
8,267,185 Circulated heated transfer fluid systems used to treat a subsurface formation 18 2009
8,261,832 Heating subsurface formations with fluids 24 2009
8,256,512 Movable heaters for treating subsurface hydrocarbon containing formations 11 2009
8,220,539 Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation 29 2009
8,636,323 Mines and tunnels for use in treating subsurface hydrocarbon containing formations 0 2009
8,562,078 Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations 3 2009
8,448,707 Non-conducting heater casings 0 2010
8,434,555 Irregular pattern treatment of a subsurface formation 12 2010
8,327,932 Recovering energy from a subsurface formation 13 2010
8,608,249 In situ thermal processing of an oil shale formation 1 2010
8,192,682 High strength alloys 22 2010
8,225,866 In situ recovery from a hydrocarbon containing formation 19 2010
8,233,782 Grouped exposed metal heaters 11 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 6 2010
8,257,112 Press-fit coupling joint for joining insulated conductors 9 2010
8,151,880 Methods of making transportation fuel 30 2010
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 0 2011
8,701,769 Methods for treating hydrocarbon formations based on geology 0 2011
8,631,866 Leak detection in circulated fluid systems for heating subsurface formations 0 2011
8,502,120 Insulating blocks and methods for installation in insulated conductor heaters 1 2011
8,485,256 Variable thickness insulated conductors 3 2011
8,230,927 Methods and systems for producing fluid from an in situ conversion process 12 2011
8,579,031 Thermal processes for subsurface formations 0 2011
8,732,946 Mechanical compaction of insulator for insulated conductor splices 0 2011
8,586,866 Hydroformed splice for insulated conductors 0 2011
8,586,867 End termination for three-phase insulated conductors 0 2011
8,555,971 Treating tar sands formations with dolomite 2 2012
8,485,252 In situ recovery from a hydrocarbon containing formation 11 2012
8,485,847 Press-fit coupling joint for joining insulated conductors 6 2012
8,789,586 In situ recovery from a hydrocarbon containing formation 0 2013
 
COMPANY, SHELL OIL (1)
8,191,630 Creating fluid injectivity in tar sands formations 30 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] (1)
8,579,014 Cooling arrangement for conveyors and other applications 0 2009

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