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, TX5138

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nguyen, Scott Vinh - 26 946
Vinegar, Harold J Bellaire, TX 546 53774

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 273 1980
4,398,151 Method for correcting an electrical log for the presence of shale in a formation 262 1982
4,583,046 Apparatus for focused electrode induced polarization logging 265 1983
4,499,209 Process for the preparation of a Fischer-Tropsch catalyst and preparation of hydrocarbons from syngas 208 1983
4,540,882 Method of determining drilling fluid invasion 272 1983
4,542,648 Method of correlating a core sample with its original position in a borehole 273 1983
4,571,491 Method of imaging the atomic number of a sample 281 1983
4,583,242 Apparatus for positioning a sample in a computerized axial tomographic scanner 267 1983
4,613,754 Tomographic calibration apparatus 277 1983
4,635,197 High resolution tomographic imaging method 261 1983
4,644,283 In-situ method for determining pore size distribution, capillary pressure and permeability 274 1984
4,570,715 Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature 309 1984
4,663,711 Method of analyzing fluid saturation using computerized axial tomography 262 1984
4,572,299 Heater cable installation 290 1984
4,585,066 Well treating process for installing a cable bundle containing strands of changing diameter 262 1984
4,704,514 Heating rate variant elongated electrical resistance heater 311 1985
4,671,102 Method and apparatus for determining distribution of fluids 282 1985
4,626,665 Metal oversheathed electrical resistance heater 294 1985
4,719,423 NMR imaging of materials for transport properties 288 1985
4,728,892 NMR imaging of materials 313 1985
4,640,352 In-situ steam drive oil recovery process 303 1985
4,730,162 Time-domain induced polarization logging method and apparatus with gated amplification level 260 1985
4,658,215 Method for induced polarization logging 265 1986
4,616,705 Mini-well temperature profiling process 281 1986
4,769,602 Determining multiphase saturations by NMR imaging of multiple nuclides 283 1986
4,769,606 Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations 266 1986
4,743,854 In-situ induced polarization method for determining formation permeability 261 1986
4,827,761 Sample holder 274 1987
4,856,341 Apparatus for analysis of failure of material 268 1987
5,306,640 Method for determining preselected properties of a crude oil 265 1987
4,886,118 Conductively heating a subterranean oil shale to create permeability and subsequently produce oil 332 1988
4,866,983 Analytical methods and apparatus for measuring the oil content of sponge core 264 1988
4,893,504 Method for determining capillary pressure and relative permeability by imaging 190 1988
4,884,455 Method for analysis of failure of material employing imaging 266 1989
4,987,368 Nuclear magnetism logging tool using high-temperature superconducting squid detectors 286 1989
5,042,579 Method and apparatus for producing tar sand deposits containing conductive layers 99 1990
5,046,559 Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers 305 1990
5,060,726 Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication 277 1990
5,060,287 Heater utilizing copper-nickel alloy core 304 1990
5,065,818 Subterranean heaters 296 1991
5,103,909 Profile control in enhanced oil recovery 97 1991
5,189,283 Current to power crossover heater control 270 1991
5,168,927 Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation 263 1991
5,226,961 High temperature wellbore cement slurry 281 1992
5,255,742 Heat injection process 325 1992
5,297,626 Oil recovery process 304 1992
5,236,039 Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale 327 1992
5,366,012 Method of completing an uncased section of a borehole 531 1993
5,391,291 Hydrogenation catalyst and process 269 1993
5,468,372 Process of hydrotreating and/or hydrocracking hydrocarbon streams or tail gas treating sulfur-containing gas streams 127 1993
5,392,854 Oil recovery process 306 1993
5,404,952 Heat injection process and apparatus 287 1993
5,411,089 Heat injection process 279 1993
5,433,271 Heat injection process 276 1993
5,409,071 Method to cement a wellbore 271 1994
5,497,087 NMR logging of natural gas reservoirs 301 1994
5,498,960 NMR logging of natural gas in reservoirs 316 1994
5,541,517 Method for drilling a borehole from one cased borehole to another cased borehole 269 1995
5,862,858 Flameless combustor 288 1996
5,899,269 Flameless combustor 307 1996
5,744,025 Process for hydrotreating metal-contaminated hydrocarbonaceous feedstock 118 1997
6,056,057 Heater well method and apparatus 306 1997
6,079,499 Heater well method and apparatus 301 1997
6,094,048 NMR logging of natural gas reservoirs 266 1997
6,023,554 Electrical heater 306 1998
6,102,122 Control of heat injection based on temperature and in-situ stress measurement 273 1998
6,019,172 Flameless combustor 277 1999
6,218,333 Preparation of a hydrotreating catalyst 117 1999
6,540,018 Method and apparatus for heating a wellbore 150 1999
6,290,841 Hydrotreating process using sulfur activated non-calcined catalyst 118 2000
2002/0036,085 Toroidal choke inductor for wireless communication and control 70 2001
6,679,332 Petroleum well having downhole sensors, communication and power 188 2001
6,715,550 Controllable gas-lift well and valve 142 2001
6,981,553 Controlled downhole chemical injection 137 2001
7,147,059 Use of downhole high pressure gas in a gas-lift well and associated methods 139 2001
7,170,424 Oil well casting electrical power pick-off points 135 2001
7,259,688 Wireless reservoir production control 93 2001
2002/0027,001 In situ thermal processing of a coal formation to produce a selected gas mixture 190 2001
2002/0033,253 In situ thermal processing of a hydrocarbon containing formation using insulated conductor heat sources 195 2001
2002/0036,089 In situ thermal processing of a hydrocarbon containing formation using distributed combustor heat sources 190 2001
2002/0038,069 In situ thermal processing of a coal formation to produce a mixture of olefins, oxygenated hydrocarbons, and aromatic hydrocarbons 189 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 196 2001
2002/0040,780 In situ thermal processing of a hydrocarbon containing formation to produce a selected mixture 192 2001
2002/0053,431 In situ thermal processing of a hydrocarbon containing formation to produce a selected ratio of components in a gas 192 2001
2002/0076,212 In situ thermal processing of a hydrocarbon containing formation producing a mixture with oxygenated hydrocarbons 193 2001
2003/0085,034 In situ thermal processing of a coal formation to produce pyrolsis products 190 2001
6,581,684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids 246 2001
6,588,503 In Situ thermal processing of a coal formation to control product composition 207 2001
6,588,504 In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids 215 2001
6,591,906 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content 232 2001
6,591,907 In situ thermal processing of a coal formation with a selected vitrinite reflectance 207 2001
6,607,033 In Situ thermal processing of a coal formation to produce a condensate 203 2001
6,609,570 In situ thermal processing of a coal formation and ammonia production 203 2001
6,688,387 In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate 220 2001
6,698,515 In situ thermal processing of a coal formation using a relatively slow heating rate 203 2001
6,702,016 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer 211 2001
6,708,758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas 212 2001
6,712,135 In situ thermal processing of a coal formation in reducing environment 202 2001
6,712,136 In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing 249 2001
6,712,137 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material 201 2001
6,715,546 In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore 225 2001
6,715,547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation 206 2001
6,715,548 In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids 206 2001
6,715,549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio 170 2001
6,719,047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment 206 2001
6,722,429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas 223 2001
6,722,430 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio 202 2001
6,722,431 In situ thermal processing of hydrocarbons within a relatively permeable formation 221 2001
6,725,920 In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products 207 2001
6,725,921 In situ thermal processing of a coal formation by controlling a pressure of the formation 156 2001
6,725,928 In situ thermal processing of a coal formation using a distributed combustor 202 2001
6,729,395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells 207 2001
6,729,396 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range 200 2001
6,729,397 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance 206 2001
6,729,401 In situ thermal processing of a hydrocarbon containing formation and ammonia production 206 2001
6,732,794 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 206 2001
6,732,795 In situ thermal processing of a hydrocarbon containing formation to pyrolyze a selected percentage of hydrocarbon material 166 2001
6,732,796 In situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio 226 2001
6,736,215 In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration 212 2001
6,739,393 In situ thermal processing of a coal formation and tuning production 201 2001
6,739,394 Production of synthesis gas from a hydrocarbon containing formation 209 2001
6,742,587 In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation 201 2001
6,742,588 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content 232 2001
6,742,589 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources 200 2001
6,742,593 In situ thermal processing of a hydrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation 207 2001
6,745,831 In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation 225 2001
6,745,832 Situ thermal processing of a hydrocarbon containing formation to control product composition 187 2001
6,745,837 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate 207 2001
6,749,021 In situ thermal processing of a coal formation using a controlled heating rate 204 2001
6,752,210 In situ thermal processing of a coal formation using heat sources positioned within open wellbores 218 2001
6,758,268 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate 206 2001
6,761,216 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas 202 2001
6,763,886 In situ thermal processing of a coal formation with carbon dioxide sequestration 197 2001
6,769,483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources 206 2001
6,769,485 In situ production of synthesis gas from a coal formation through a heat source wellbore 204 2001
6,789,625 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources 205 2001
6,805,195 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas 194 2001
6,820,688 In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio 183 2001
6,866,097 In situ thermal processing of a coal formation to increase a permeability/porosity of the formation 167 2001
6,871,707 In situ thermal processing of a hydrocarbon containing formation with carbon dioxide sequestration 161 2001
6,877,554 In situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control 159 2001
6,880,635 In situ production of synthesis gas from a coal formation, the synthesis gas having a selected H2 to CO ratio 161 2001
6,889,769 In situ thermal processing of a hydrocarbon containing formation with a selected moisture content 147 2001
6,896,053 In situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources 169 2001
6,902,003 In situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content 146 2001
6,902,004 In situ thermal processing of a hydrocarbon containing formation using a movable heating element 151 2001
6,910,536 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor 148 2001
6,913,078 In Situ thermal processing of hydrocarbons within a relatively impermeable formation 163 2001
6,948,563 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content 148 2001
6,953,087 Thermal processing of a hydrocarbon containing formation to increase a permeability of the formation 166 2001
6,959,761 In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells 145 2001
6,966,372 In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids 150 2001
6,973,967 Situ thermal processing of a coal formation using pressure and/or temperature control 144 2001
6,994,160 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range 162 2001
6,994,168 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio 142 2001
6,997,255 In situ thermal processing of a hydrocarbon containing formation in a reducing environment 143 2001
7,036,583 In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation 162 2001
7,086,468 In situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores 141 2001
7,096,941 In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer 138 2001
7,096,953 In situ thermal processing of a coal formation using a movable heating element 161 2001
6,759,364 Arsenic removal catalyst and method for making same 87 2001
6,821,501 Integrated flameless distributed combustion/steam reforming membrane reactor for hydrogen production and use thereof in zero emissions hybrid power system 96 2002
2003/0079,877 In situ thermal processing of a relatively impermeable formation in a reducing environment 206 2002
2003/0146,002 Removable heat sources for in situ thermal processing of an oil shale formation 203 2002
6,782,947 In situ thermal processing of a relatively impermeable formation to increase permeability of the formation 247 2002
6,877,555 In situ thermal processing of an oil shale formation while inhibiting coking 181 2002
6,880,633 In situ thermal processing of an oil shale formation to produce a desired product 197 2002
6,915,850 In situ thermal processing of an oil shale formation having permeable and impermeable sections 152 2002
6,918,442 In situ thermal processing of an oil shale formation in a reducing environment 150 2002
6,918,443 In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range 165 2002
6,923,257 In situ thermal processing of an oil shale formation to produce a condensate 168 2002
6,929,067 Heat sources with conductive material for in situ thermal processing of an oil shale formation 162 2002
6,948,562 Production of a blending agent using an in situ thermal process in a relatively permeable formation 181 2002
6,951,247 In situ thermal processing of an oil shale formation using horizontal heat sources 185 2002
6,964,300 In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore 179 2002
6,966,374 In situ thermal recovery from a relatively permeable formation using gas to increase mobility 154 2002
6,981,548 In situ thermal recovery from a relatively permeable formation 151 2002
6,991,032 In situ thermal processing of an oil shale formation using a pattern of heat sources 162 2002
6,994,169 In situ thermal processing of an oil shale formation with a selected property 151 2002
6,997,518 In situ thermal processing and solution mining of an oil shale formation 170 2002
7,004,247 Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation 183 2002
7,004,251 In situ thermal processing and remediation of an oil shale formation 183 2002
7,032,660 In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation 176 2002
7,040,397 Thermal processing of an oil shale formation to increase permeability of the formation 162 2002
7,040,398 In situ thermal processing of a relatively permeable formation in a reducing environment 146 2002
7,040,399 In situ thermal processing of an oil shale formation using a controlled heating rate 161 2002
7,040,400 In situ thermal processing of a relatively impermeable formation using an open wellbore 171 2002
7,051,807 In situ thermal recovery from a relatively permeable formation with quality control 108 2002
7,055,600 In situ thermal recovery from a relatively permeable formation with controlled production rate 168 2002
7,096,942 In situ thermal processing of a relatively permeable formation while controlling pressure 172 2002
2003/0196,789 In situ thermal processing of a hydrocarbon containing formation and upgrading of produced fluids prior to further treatment 218 2002
2003/0201,098 In situ recovery from a hydrocarbon containing formation using one or more simulations 213 2002
6,932,155 In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well 187 2002
6,969,123 Upgrading and mining of coal 185 2002
6,991,045 Forming openings in a hydrocarbon containing formation using magnetic tracking 152 2002
7,011,154 In situ recovery from a kerogen and liquid hydrocarbon containing formation 181 2002
7,051,808 Seismic monitoring of in situ conversion in a hydrocarbon containing formation 89 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 173 2002
7,066,254 In situ thermal processing of a tar sands formation 205 2002
7,066,257 In situ recovery from lean and rich zones in a hydrocarbon containing formation 152 2002
7,077,198 In situ recovery from a hydrocarbon containing formation using barriers 191 2002
7,077,199 In situ thermal processing of an oil reservoir formation 180 2002
7,086,465 In situ production of a blending agent from a hydrocarbon containing formation 150 2002
7,090,013 In situ thermal processing of a hydrocarbon containing formation to produce heated fluids 173 2002
7,100,994 Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation 170 2002
7,104,319 In situ thermal processing of a heavy oil diatomite formation 173 2002
7,114,566 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor 179 2002
7,128,153 Treatment of a hydrocarbon containing formation after heating 157 2002
7,156,176 Installation and use of removable heaters in a hydrocarbon containing formation 152 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 173 2002
7,055,602 Method and composition for enhanced hydrocarbons recovery 91 2003
6,923,258 In situ thermal processsing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 164 2003
6,958,704 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters 162 2003
2004/0140,096 Insulated conductor temperature limited heaters 164 2003
2004/0144,540 High voltage temperature limited heaters 154 2003
2004/0144,541 Forming wellbores using acoustic methods 117 2003
2004/0146,288 Temperature limited heaters for heating subsurface formations or wellbores 172 2003
2005/0006,097 Variable frequency temperature limited heaters 165 2003
7,073,578 Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation 189 2003
7,121,341 Conductor-in-conduit temperature limited heaters 149 2003
7,219,734 Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation 165 2003
7,121,342 Thermal processes for subsurface formations 208 2004
2005/0133,405 Systems and methods of producing a crude product 77 2004
2005/0133,414 Systems, methods, and catalysts for producing a crude product 89 2004
2005/0269,093 Variable frequency temperature limited heaters 112 2005
2005/0269,313 Temperature limited heaters with high power factors 140 2005
2006/0005,968 Temperature limited heaters with relatively constant current 97 2005
2006/0289,536 Subsurface electrical heaters using nitride insulation 139 2005
7,320,364 Inhibiting reflux in a heated well of an in situ conversion system 99 2005
7,357,180 Inhibiting effects of sloughing in wellbores 118 2005
7,370,704 Triaxial temperature limited heater 111 2005
7,383,877 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations 106 2005
7,424,915 Vacuum pumping of conductor-in-conduit heaters 111 2005
7,431,076 Temperature limited heaters using modulated DC power 111 2005
7,481,274 Temperature limited heaters with relatively constant current 100 2005
7,490,665 Variable frequency temperature limited heaters 105 2005
7,510,000 Reducing viscosity of oil for production from a hydrocarbon containing formation 102 2005
2006/0178,546 Method and apparatus for making a middle distillate product and lower olefins from a hydrocarbon feedstock 75 2006
2006/0191,820 Hydrocarbon cracking process for converting gas oil preferentially to middle distillate and lower olefins 73 2006
7,225,866 In situ thermal processing of an oil shale formation using a pattern of heat sources 163 2006
2006/0231,465 Systems, methods, and catalysts for producing a crude product 90 2006
7,426,959 Systems and methods for producing oil and/or gas 41 2006
2007/0045,266 In situ conversion process utilizing a closed loop heating system 136 2006
2007/0045,267 Subsurface connection methods for subsurface heaters 156 2006
2007/0045,268 Varying properties along lengths of temperature limited heaters 146 2006
2007/0108,200 Low temperature barrier wellbores formed using water flushing 124 2006
2007/0108,201 Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration 133 2006
2007/0119,098 Treatment of gas from an in situ conversion process 132 2006
2007/0133,959 Grouped exposed metal heaters 110 2006
2007/0133,960 In situ conversion process systems utilizing wellbores in at least two regions of a formation 126 2006
2007/0137,856 Double barrier system for an in situ conversion process 95 2006
2007/0137,857 Low temperature monitoring system for subsurface barriers 94 2006
2007/0144,732 Low temperature barriers for use with in situ processes 119 2006
2008/0217,321 Temperature limited heater utilizing non-ferromagnetic conductor 127 2006
7,435,037 Low temperature barriers with heat interceptor wells for in situ processes 121 2006
7,500,528 Low temperature barrier wellbores formed using water flushing 111 2006
7,527,094 Double barrier system for an in situ conversion process 110 2006
7,575,052 In situ conversion process utilizing a closed loop heating system 100 2006
7,575,053 Low temperature monitoring system for subsurface barriers 99 2006
2006/0289,340 METHODS FOR PRODUCING A TOTAL PRODUCT IN THE PRESENCE OF SULFUR 89 2006
2007/0000,810 METHOD FOR PRODUCING A CRUDE PRODUCT WITH REDUCED TAN 98 2006
7,360,588 Thermal processes for subsurface formations 105 2006
2007/0095,536 Cogeneration systems and processes for treating hydrocarbon containing formations 130 2006
2007/0095,537 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 137 2006
2007/0125,533 Methods of hydrotreating a liquid stream to remove clogging compounds 91 2006
2007/0127,897 Subsurface heaters with low sulfidation rates 136 2006
2007/0131,415 Solution mining and heating by oxidation for treating hydrocarbon containing formations 133 2006
2007/0131,419 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 89 2006
2007/0131,420 Methods of cracking a crude product to produce additional crude products 87 2006
2007/0131,428 Methods of filtering a liquid stream produced from an in situ heat treatment process 130 2006
2007/0221,377 Solution mining systems and methods for treating hydrocarbon containing formations 93 2006
2008/0017,370 Temperature limited heater with a conduit substantially electrically isolated from the formation 67 2006
2008/0107,577 Varying heating in dawsonite zones in hydrocarbon containing formations 57 2006
7,549,470 Solution mining and heating by oxidation for treating hydrocarbon containing formations 130 2006
7,556,095 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 130 2006
7,556,096 Varying heating in dawsonite zones in hydrocarbon containing formations 117 2006
7,559,367 Temperature limited heater with a conduit substantially electrically isolated from the formation 113 2006
7,559,368 Solution mining systems and methods for treating hydrocarbon containing formations 112 2006
7,562,706 Systems and methods for producing hydrocarbons from tar sands formations 111 2006
7,581,589 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 110 2006
7,584,789 Methods of cracking a crude product to produce additional crude products 105 2006
7,591,310 Methods of hydrotreating a liquid stream to remove clogging compounds 106 2006
7,635,025 Cogeneration systems and processes for treating hydrocarbon containing formations 95 2006
7,461,691 In situ recovery from a hydrocarbon containing formation 141 2007
2007/0284,108 Compositions produced using an in situ heat treatment process 77 2007
2007/0289,733 Wellhead with non-ferromagnetic materials 68 2007
2008/0017,380 Non-ferromagnetic overburden casing 88 2007
2008/0035,346 Methods of producing transportation fuel 83 2007
2008/0035,347 Adjusting alloy compositions for selected properties in temperature limited heaters 79 2007
2008/0035,705 Welding shield for coupling heaters 81 2007
2008/0038,144 High strength alloys 80 2007
2008/0173,442 Sulfur barrier for use with in situ processes for treating formations 104 2007
2008/0173,444 Alternate energy source usage for in situ heat treatment processes 114 2007
2008/0173,449 Sour gas injection for use with in situ heat treatment 78 2007
2008/0174,115 Power systems utilizing the heat of produced formation fluid 113 2007
7,533,719 Wellhead with non-ferromagnetic materials 115 2007
7,604,052 Compositions produced using an in situ heat treatment process 107 2007
7,610,962 Sour gas injection for use with in situ heat treatment 87 2007
7,631,689 Sulfur barrier for use with in situ processes for treating formations 98 2007
7,635,023 Time sequenced heating of multiple layers in a hydrocarbon containing formation 105 2007
7,673,786 Welding shield for coupling heaters 80 2007
7,683,296 Adjusting alloy compositions for selected properties in temperature limited heaters 79 2007
2009/0101,346 In situ recovery from a hydrocarbon containing formation 99 2007
7,735,935 In situ thermal processing of an oil shale formation containing carbonate minerals 76 2007
2008/0128,134 Producing drive fluid in situ in tar sands formations 102 2007
2008/0135,244 Heating hydrocarbon containing formations in a line drive staged process 100 2007
2008/0135,253 Treating tar sands formations with karsted zones 111 2007
2008/0135,254 In situ heat treatment process utilizing a closed loop heating system 101 2007
2008/0142,216 Treating tar sands formations with dolomite 112 2007
2008/0142,217 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 106 2007
2008/0185,147 Wax barrier for use with in situ processes for treating formations 97 2007
2008/0217,003 Gas injection to inhibit migration during an in situ heat treatment process 108 2007
2008/0217,004 Heating hydrocarbon containing formations in a checkerboard pattern staged process 89 2007
2008/0217,015 Heating hydrocarbon containing formations in a spiral startup staged sequence 93 2007
2008/0217,016 Creating fluid injectivity in tar sands formations 121 2007
2008/0236,831 Condensing vaporized water in situ to treat tar sands formations 113 2007
2008/0277,113 Heating tar sands formations while controlling pressure 109 2007
2008/0283,246 Heating tar sands formations to visbreaking temperatures 84 2007
2009/0014,180 Moving hydrocarbons through portions of tar sands formations with a fluid 116 2007
2009/0014,181 Creating and maintaining a gas cap in tar sands formations 116 2007
7,540,324 Heating hydrocarbon containing formations in a checkerboard pattern staged process 115 2007
7,562,707 Heating hydrocarbon containing formations in a line drive staged process 113 2007
7,631,690 Heating hydrocarbon containing formations in a spiral startup staged sequence 99 2007
7,635,024 Heating tar sands formations to visbreaking temperatures 96 2007
7,644,765 Heating tar sands formations while controlling pressure 78 2007
7,673,681 Treating tar sands formations with karsted zones 68 2007
7,677,310 Creating and maintaining a gas cap in tar sands formations 66 2007
7,677,314 Method of condensing vaporized water in situ to treat tar sands formations 65 2007
7,681,647 Method of producing drive fluid in situ in tar sands formations 80 2007
7,703,513 Wax barrier for use with in situ processes for treating formations 82 2007
7,717,171 Moving hydrocarbons through portions of tar sands formations with a fluid 73 2007
7,730,945 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 71 2007
7,730,946 Treating tar sands formations with dolomite 70 2007
7,730,947 Creating fluid injectivity in tar sands formations 71 2007
7,640,980 Thermal processes for subsurface formations 78 2008
2009/0084,547 DOWNHOLE BURNER SYSTEMS AND METHODS FOR HEATING SUBSURFACE FORMATIONS 88 2008
2009/0090,158 WELLBORE MANUFACTURING PROCESSES FOR IN SITU HEAT TREATMENT PROCESSES 102 2008
2009/0095,476 MOLTEN SALT AS A HEAT TRANSFER FLUID FOR HEATING A SUBSURFACE FORMATION 83 2008
2009/0095,477 HEATING SYSTEMS FOR HEATING SUBSURFACE FORMATIONS 88 2008
2009/0095,478 VARYING PROPERTIES OF IN SITU HEAT TREATMENT OF A TAR SANDS FORMATION BASED ON ASSESSED VISCOSITIES 100 2008
2009/0095,479 PRODUCTION FROM MULTIPLE ZONES OF A TAR SANDS FORMATION 100 2008
2009/0126,929 TREATING NAHCOLITE CONTAINING FORMATIONS AND SALINE ZONES 96 2008
2009/0189,617 CONTINUOUS SUBSURFACE HEATER TEMPERATURE MEASUREMENT 100 2008
2009/0194,269 THREE-PHASE HEATERS WITH COMMON OVERBURDEN SECTIONS FOR HEATING SUBSURFACE FORMATIONS 97 2008
2009/0194,333 RANGING METHODS FOR DEVELOPING WELLBORES IN SUBSURFACE FORMATIONS 95 2008
2009/0200,023 HEATING SUBSURFACE FORMATIONS BY OXIDIZING FUEL ON A FUEL CARRIER 98 2008
2009/0200,854 SOLUTION MINING AND IN SITU TREATMENT OF NAHCOLITE BEDS 96 2008
2010/0089,584 DOUBLE INSULATED HEATERS FOR TREATING SUBSURFACE FORMATIONS 47 2009
2010/0089,586 MOVABLE HEATERS FOR TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS 44 2009
 
Mobil Oil Corporation (24)
4,258,955 Process for in-situ leaching of uranium 69 1978
4,380,930 System for transmitting ultrasonic energy through core samples 181 1981
4,368,114 Octane and total yield improvement in catalytic cracking 122 1981
4,410,042 In-situ combustion method for recovery of heavy oil utilizing oxygen and carbon dioxide as initial oxidant 190 1981
4,549,396 Conversion of coal to electricity 269 1982
4,530,401 Method for maximum in-situ visbreaking of heavy oil 263 1982
4,429,745 Oil recovery method 200 1982
4,458,767 Method for directionally drilling a first well to intersect a second well 224 1982
4,598,392 Vibratory signal sweep seismic prospecting method and apparatus 161 1983
4,573,530 In-situ gasification of tar sands utilizing a combustible gas 257 1983
4,698,149 Enhanced recovery of hydrocarbonaceous fluids oil shale 190 1983
4,598,772 Method for operating a production well in an oxygen driven in-situ combustion oil recovery process 189 1983
4,577,690 Method of using seismic data to monitor firefloods 152 1984
4,598,770 Thermal recovery method for viscous oil 293 1984
4,669,542 Simultaneous recovery of crude from multiple zones in a reservoir 264 1984
4,766,958 Method of recovering viscous oil from reservoirs with multiple horizontal zones 177 1987
4,787,452 Disposal of produced formation fines during oil recovery 276 1987
4,982,786 Use of CO.sub.2 /steam to enhance floods in horizontal wellbores 254 1989
5,211,230 Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion 284 1992
5,339,904 Oil recovery optimization using a well having both horizontal and vertical sections 259 1992
5,377,756 Method for producing low permeability reservoirs using a single well 219 1993
5,411,086 Oil recovery by enhanced imbitition in low permeability reservoirs 175 1993
5,415,231 Method for producing low permeability reservoirs using steam 267 1994
5,431,224 Method of thermal stimulation for recovery of hydrocarbons 274 1994
 
AMOCO CORPORATION (16)
4,184,548 Method for determining the position and inclination of a flame front during in situ combustion of an oil shale retort 151 1978
4,274,487 Indirect thermal stimulation of production wells 273 1979
4,537,252 Method of underground conversion of coal 265 1984
4,662,439 Method of underground conversion of coal 264 1985
4,662,443 Combination air-blown and oxygen-blown underground coal gasification process 267 1985
4,756,367 Method for producing natural gas from a coal seam 255 1987
5,059,303 Oil stabilization 198 1989
5,133,406 Generating oxygen-depleted air useful for increasing methane production 111 1991
5,388,640 Method for producing methane-containing gaseous mixtures 269 1993
5,388,641 Method for reducing the inert gas fraction in methane-containing gaseous mixtures obtained from underground formations 266 1993
5,388,642 Coalbed methane recovery using membrane separation of oxygen from air 266 1993
5,388,643 Coalbed methane recovery using pressure swing adsorption separation 263 1993
5,388,645 Method for producing methane-containing gaseous mixtures 276 1993
5,439,054 Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation 270 1994
5,454,666 Method for disposing of unwanted gaseous fluid components within a solid carbonaceous subterranean formation 275 1994
5,566,755 Method for recovering methane from a solid carbonaceous subterranean formation 195 1995
 
Texaco Inc. (12)
4,524,826 Method of heating an oil shale formation 281 1982
4,592,423 Hydrocarbon stratum retorting means and method 263 1984
4,577,691 Method and apparatus for producing viscous hydrocarbons from a subterranean formation 112 1984
4,576,231 Method and apparatus for combating encroachment by in situ treated formations 282 1984
4,682,652 Producing hydrocarbons through successively perforated intervals of a horizontal well between two vertical wells 270 1986
5,102,551 Membrane process for treating a mixture containing dewaxed oil and dewaxing solvent 73 1991
5,093,002 Membrane process for treating a mixture containing dewaxed oil and dewaxing solvent 73 1991
5,199,490 Formation treating 82 1991
5,284,206 Formation treating 75 1992
5,632,336 Method for improving injectivity of fluids in oil reservoirs 266 1994
5,571,403 Process for extracting hydrocarbons from diatomite 180 1995
5,826,655 Method for enhanced recovery of viscous oil deposits 192 1996
 
Chevron Research Company (11)
4,299,086 Utilization of energy obtained by substoichiometric combustion of low heating value gases 276 1978
4,186,801 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 277 1978
4,250,962 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 264 1979
4,303,126 Arrangement of wells for producing subsurface viscous petroleum 183 1980
4,273,188 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 265 1980
4,381,641 Substoichiometric combustion of low heating value gases 299 1980
4,366,668 Substoichiometric combustion of low heating value gases 280 1981
4,363,361 Substoichiometric combustion of low heating value gases 271 1981
4,551,226 Heat exchanger antifoulant 80 1982
4,460,044 Advancing heated annulus steam drive 193 1982
4,828,031 In situ chemical stimulation of diatomite formations 206 1987
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (9)
4,984,594 Vacuum method for removing soil contamination utilizing surface electrical heating 326 1989
5,190,405 Vacuum method for removing soil contaminants utilizing thermal conduction heating 301 1990
5,229,583 Surface heating blanket for soil remediation 288 1992
5,318,116 Vacuum method for removing soil contaminants utilizing thermal conduction heating 306 1993
5,553,189 Radiant plate heater for treatment of contaminated surfaces 283 1994
5,656,239 Method for recovering contaminants from soil utilizing electrical heating 286 1995
6,102,622 Remediation method 282 1998
5,997,214 Remediation method 280 1998
6,485,232 Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system 263 2000
 
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 83 1991
5,782,301 Oil well heater cable 115 1996
6,088,294 Drilling system with an acoustic measurement-while-driving system for determining parameters of interest and controlling the drilling direction 203 1997
6,084,826 Measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers 166 1998
6,078,868 Reference signal encoding for seismic while drilling measurement 143 1999
6,427,124 Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundaries 147 1999
6,588,266 Monitoring of downhole parameters and tools utilizing fiber optics 154 2001
6,585,046 Live well heater cable 165 2001
 
AKAMAI TECHNOLOGIES, INC. (7)
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 24 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 24 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 24 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 24 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 24 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 24 2009
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 24 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 205 1981
4,489,782 Viscous oil production using electrical current heating and lateral drain holes 292 1983
4,597,444 Method for excavating a large diameter shaft into the earth and at least partially through an oil-bearing formation 190 1984
4,662,437 Electrically stimulated well production system with flexible tubing conductor 169 1985
4,640,353 Electrode well and method of completion 208 1986
4,651,825 Enhanced well production 270 1986
4,744,245 Acoustic measurements in rock formations for determining fracture orientation 159 1986
 
EXXONMOBIL UPSTREAM RESEARCH COMPANY (6)
5,339,897 Recovery and upgrading of hydrocarbon utilizing in situ combustion and horizontal wells 323 1992
6,918,444 Method for production of hydrocarbons from organic-rich rock 112 2001
6,755,251 Downhole gas separation method and system 92 2002
7,128,150 Acid gas disposal method 90 2002
7,331,385 Methods of treating a subterranean formation to convert organic matter into producible hydrocarbons 88 2004
2007/0246,994 In situ co-development of oil shale with mineral recovery 97 2007
 
Standard Oil Company (Indiana) (6)
4,265,307 Shale oil recovery 260 1978
4,353,418 In situ retorting of oil shale 279 1980
4,401,163 Modified in situ retorting of oil shale 191 1980
4,425,967 Ignition procedure and process for in situ retorting of oil shale 152 1981
4,457,374 Transient response process for detecting in situ retorting conditions 244 1982
4,552,214 Pulsed in situ retorting in an array of oil shale retorts 191 1984
 
UENTECH CORPORATION (6)
4,821,798 Heating system for rathole oil well 142 1987
4,793,409 Method and apparatus for forming an insulated oil well casing 101 1987
5,070,533 Robust electrical heating systems for mineral wells 78 1990
5,099,918 Power sources for downhole electrical heating 278 1991
5,621,844 Electrical heating of mineral well deposits using downhole impedance transformation networks 318 1995
5,713,415 Low flux leakage cables and cable terminations for A.C. electrical heating of oil deposits 280 1996
 
WORLD ENERGY SYSTEMS, INC. (6)
4,199,024 Multistage gas generator 147 1979
4,597,441 Recovery of oil by in situ hydrogenation 303 1984
4,691,771 Recovery of oil by in-situ combustion followed by in-situ hydrogenation 278 1986
6,016,867 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking 302 1998
6,016,868 Production of synthetic crude oil from heavy hydrocarbons recovered by in situ hydrovisbreaking 307 1998
6,328,104 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking 302 2000
 
DELAWARE CAPITAL FORMATION, INC. (5)
4,717,814 Slotted autoregulating heater 167 1984
4,623,401 Heat treatment with an autoregulating heater 196 1986
4,814,587 High power self-regulating heater 154 1986
4,794,226 Self-regulating porous heater device 141 1986
5,073,625 Self-regulating porous heating device 145 1988
 
HALLIBURTON ENERGY SERVICES, INC. (5)
5,899,958 Logging while drilling borehole imaging and dipmeter device 227 1995
5,926,437 Method and apparatus for seismic exploration 143 1997
6,951,250 Sealant compositions and methods of using the same to isolate a subterranean zone from a disposal well 66 2003
7,147,057 Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore 112 2003
7,337,841 Casing comprising stress-absorbing materials and associated methods of use 40 2004
 
LIFESHIELD SCIENCES LLC (5)
2004/0158,312 Braided endoluminal device having tapered filaments 4 2003
2004/0158,312 Braided endoluminal device having tapered filaments 4 2003
2004/0158,312 Braided endoluminal device having tapered filaments 4 2003
2004/0158,312 Braided endoluminal device having tapered filaments 4 2003
2004/0158,312 Braided endoluminal device having tapered filaments 4 2003
 
UOP LLC (5)
4,310,440 Crystalline metallophosphate compositions 457 1980
4,440,871 Crystalline silicoaluminophosphates 739 1982
4,500,651 Titanium-containing molecular sieves 175 1983
4,686,029 Dewaxing catalysts and processes employing titanoaluminosilicate molecular sieves 82 1985
5,802,870 Sorption cooling process and system 82 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 295 1987
4,983,319 Preparation of low-viscosity improved stable crude oil transport emulsions 277 1988
5,340,467 Process for recovery of hydrocarbons and rejection of sand 309 1991
5,316,664 Process for recovery of hydrocarbons and rejection of sand 306 1992
 
CHEVRON RESEARCH AND TECHNOLOGY COMPANY (4)
5,054,551 In-situ heated annulus refining process 201 1990
5,085,276 Production of oil from low permeability formations by sequential steam fracturing 208 1990
5,145,003 Method for in-situ heated annulus refining process 216 1991
5,305,829 Oil production from diatomite formations by fracture steamdrive 206 1992
 
ENERGY, UNITED STATES DEPARTMENT OF (4)
4,385,661 Downhole steam generator with improved preheating, combustion and protection features 163 1981
2008/0035,348 Temperature limited heaters using phase transformation of ferromagnetic material 59 2007
7,597,147 Temperature limited heaters using phase transformation of ferromagnetic material 104 2007
2009/0078,461 DRILLING SUBSURFACE WELLBORES WITH CUTTING STRUCTURES 85 2008
 
Exxon Research and Engineering Company (4)
4,458,757 In situ shale-oil recovery process 256 1983
5,275,726 Spiral wound element for separation 91 1992
5,935,421 Continuous in-situ combination process for upgrading heavy oil 219 1996
6,110,358 Process for manufacturing improved process oils using extraction of hydrotreated distillates 186 1999
 
IIT Research Institute (4)
RE30738 Apparatus and method for in situ heat processing of hydrocarbonaceous formations 314 1980
4,498,535 Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations with a controlled parameter line 260 1982
4,545,435 Conduction heating of hydrocarbonaceous formations 189 1983
5,621,845 Apparatus for electrode heating of earth for recovery of subsurface volatiles and semi-volatiles 137 1995
 
Cities Service Company (3)
4,216,079 Emulsion breaking with surfactant recovery 109 1979
4,412,585 Electrothermal process for recovering hydrocarbons 274 1982
4,501,445 Method of in-situ hydrogenation of carbonaceous material 273 1983
 
Indugas, Inc. (3)
4,913,065 In situ thermal waste disposal system 202 1989
5,020,596 Enhanced oil recovery system with a radiant tube heater 260 1990
5,082,055 Gas fired radiant tube heater 279 1991
 
INSTITUT FRANCAIS DU PETROLE (3)
5,217,075 Method and device for carrying out interventions in wells where high temperatures prevail 73 1991
5,363,094 Stationary system for the active and/or passive monitoring of an underground deposit 204 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 65 2001
 
TUBARC TECHNOLOGIES, LLC (3)
6,766,817 Fluid conduction utilizing a reversible unsaturated siphon with tubarc porosity action 754 2002
6,918,404 Irrigation and drainage based on hydrodynamic unsaturated fluid flow 470 2004
7,066,586 Ink refill and recharging system 455 2004
 
TYCO INTERNATIONAL LTD., A CORPORATION OF BERMUDA (3)
4,698,583 Method of monitoring a heater for faults 146 1985
4,849,611 Self-regulating heater employing reactive components 156 1985
4,785,163 Method for monitoring a heater 140 1987
 
UNIVERSITY OF UTAH (3)
4,324,292 Process for recovering products from oil shale 265 1980
4,396,062 Apparatus and method for time-domain tracking of high-speed chemical reactions 307 1980
4,409,090 Process for recovering products from tar sand 278 1982
 
Z-SEIS CORPORATION (3)
6,269,310 System for eliminating headwaves in a tomographic process 138 1999
6,193,010 System for generating a seismic signal in a borehole 140 1999
6,196,350 Apparatus and method for attenuating tube waves in a borehole 137 1999
 
ALBERTA INNOVATES - ENERGY AND ENVIRONMENT SOLUTIONS (2)
5,456,315 Horizontal well gravity drainage combustion process for oil recovery 208 1994
6,026,914 Wellbore profiling system 163 1998
 
ALBERTA INNOVATES - TECHNOLOGY FUTURES (2)
6,257,334 Steam-assisted gravity drainage heavy oil recovery process 121 1999
6,412,559 Process for recovering methane and/or sequestering fluids 268 2000
 
EDWARDS DEVELOPMENT CORP., A CORP OF NV. (2)
4,817,711 System for recovery of petroleum from petroleum impregnated media 335 1987
4,912,971 System for recovery of petroleum from petroleum impregnated media 209 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 264 1986
5,554,453 Carbonate fuel cell system with thermally integrated gasification 291 1995
 
EOR INTERNATIONAL, INC. (2)
4,524,827 Single well stimulation for the recovery of liquid hydrocarbons from subsurface formations 303 1983
5,751,895 Selective excitation of heating electrodes for oil wells 258 1996
 
HALLIBURTON COMPANY (2)
4,445,574 Continuous borehole formed horizontally through a hydrocarbon producing formation 184 1982
4,808,925 Three magnet casing collar locator 185 1987
 
LOS ALAMOS NATIONAL SECURITY, LLC (2)
6,910,537 Canister, sealing method and composition for sealing a borehole 73 2003
2008/0006,410 Kerogen Extraction From Subterranean Oil Shale Resources 77 2007
 
MASTER CORPORATION, P.O. BOX 585, AUBURN, IN 46706 (2)
RE39077 Acid gas disposal 83 2002
RE39244 Acid gas disposal 82 2004
 
MCDERMOTT TECHNOLOGY, INC. (2)
5,760,307 EMAT probe and technique for weld inspection 191 1995
6,155,117 Edge detection and seam tracking with EMATs 185 1999
 
METCAL, INC. (2)
4,752,673 Autoregulating heater 165 1982
4,695,713 Autoregulating, electrically shielded heater 189 1983
 
Occidental Oil Shale, Inc. (2)
4,437,519 Reduction of shale oil pour point 185 1981
4,605,489 Upgrading shale oil by a combination process 198 1985
 
OSUM OIL SANDS CORP. (2)
2007/0044,957 Method for underground recovery of hydrocarbons 58 2006
2008/0078,552 METHOD OF HEATING HYDROCARBONS 62 2007
 
Phillips Petroleum Company (2)
4,474,238 Method and apparatus for treatment of subsurface formations 202 1982
4,885,080 Process for demetallizing and desulfurizing heavy crude oil 200 1988
 
PRATS, MICHAEL (2)
5,984,010 Hydrocarbon recovery systems and methods 265 1997
6,173,775 Systems and methods for hydrocarbon recovery 265 1999
 
PRESSSOL LTD. (2)
6,854,534 Two string drilling system using coil tubing 137 2003
7,204,327 Reverse circulation directional and horizontal drilling using concentric drill string 126 2003
 
PRODUCTION TECHNOLOGIES INTERNATIONAL, INC. (2)
4,716,960 Method and system for introducing electric current into a well 318 1986
5,207,273 Method and apparatus for pumping wells 289 1990
 
Raychem Corporation (2)
4,417,782 Fiber optic temperature sensing 158 1980
4,701,587 Shielded heating element having intrinsic temperature control 195 1981
 
RAYCHEM LIMITED (2)
4,985,313 Wire and cable 165 1986
5,209,987 Wire and cable 167 1990
 
RAYTHEON COMPANY (2)
4,457,365 In situ radio frequency selective heating system 307 1981
4,487,257 Apparatus and method for production of organic products from kerogen 136 1981
 
RWE-DEA AKTIENGESELLSCHAFT FUR MINERALOEL UND CHEMIE (2)
4,252,191 Method of recovering petroleum and bitumen from subterranean reservoirs 273 1979
4,390,973 Method for determining the extent of subsurface reaction involving acoustic signals 153 1981
 
SYNTROLEUM CORPORATION (2)
6,172,124 Process for converting gas to liquids 270 1997
6,085,512 Synthesis gas production system and method 273 1999
 
Thermon Manufacturing Company (2)
4,645,906 Reduced resistance skin effect heat generating system 158 1985
5,512,732 Switch controlled, zone-type heating cable and method 210 1993
 
THOMPSON, GREG H. (2)
4,185,692 Underground linkage of wells for production of coal in situ 156 1978
4,250,230 Generating electricity from coal in situ 294 1979
 
Union Oil Company of California (2)
5,126,037 Geopreater heating method and apparatus 284 1990
5,723,423 Solvent soaps and methods employing same 120 1996
 
UT-BATTELLE, LLC (2)
7,153,373 Heat and corrosion resistant cast CF8C stainless steel with improved high temperature strength and ductility 107 2002
2008/0078,551 Liquid Metal Heat Exchanger for Efficient Heating of Soils and Geologic Formations 63 2006
 
ADVANCED ENGINEERING SOLUTIONS LTD. (1)
6,102,137 Apparatus and method for forming ducts and passageways 161 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 142 1990
 
AIR PRODUCTS AND CHEMICALS, INC. (1)
4,734,115 Low pressure process for C.sub.3.sup.+ liquids recovery from process product gas 192 1986
 
ALBERTA RESEARCH COUNCIL INC. (1)
4,228,854 Enhanced oil recovery using electrical means 270 1979
 
AMERICAN SHALE OIL, LLC (1)
2007/0193,743 In situ method and system for extraction of oil from shale 33 2007
 
Aminoil, USA, Inc. (1)
4,277,416 Process for producing methanol 271 1977
 
AMP Incorporated (1)
5,065,501 Generating electromagnetic fields in a self regulating temperature heater by positioning of a current return bus 142 1990
 
ANADARKO PETROLEUM CORPORATION (1)
2003/0029,617 Apparatus, method and system for single well solution-mining 170 2001
 
ASHLAND INC. (1)
5,648,305 Process for improving the effectiveness of process catalyst 73 1996
 
BATTELLE MEMORIAL INSTITUTE (1)
5,545,803 Heating of solid earthen material, measuring moisture and resistivity 172 1994
 
BETZ LABORATORIES, INC. (1)
4,840,720 Process for minimizing fouling of processing equipment 79 1988
 
BETZDEARBORN INC. (1)
5,282,957 Methods for inhibiting polymerization of hydrocarbons utilizing a hydroxyalkylhydroxylamine 80 1992
 
BHP MINERALS INTERNATIONAL (1)
5,968,349 Extraction of bitumen from bitumen froth and biotreatment of bitumen froth tailings generated from tar sands 318 1998
 
Carbotek, Inc. (1)
4,694,907 Thermally-enhanced oil recovery method and apparatus 305 1986
 
CENTRIFLOW LLC (1)
2002/0153,141 Method for pumping fluids 147 2001
 
Chambers Development Co., Inc. (1)
5,295,763 Method for controlling gas migration from a landfill 189 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 104 1999
 
COMPUTALOG LTD. (1)
6,192,748 Dynamic orienting reference system for directional drilling 210 1998
 
Concept R.K.K. Limited (1)
4,860,544 Closed cryogenic barrier for containment of hazardous material migration in the earth 302 1988
 
Concept RKK, Limited (1)
4,974,425 Closed cryogenic barrier for containment of hazardous material migration in the earth 300 1989
 
CONOCO INC. (1)
4,418,752 Thermal oil recovery with solvent recirculation 188 1982
 
CONOCOPHILLIPS COMPANY (1)
5,411,104 Coalbed methane drilling 331 1994
 
COOPER CAMERON CORPORATION (1)
4,474,236 Method and apparatus for remote installations of dual tubing strings in a subsea well 100 1983
 
CRI International, Inc. (1)
5,688,736 Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst 127 1995
 
DA QUING PETROLEUM ADMINISTRATION BUREAU (1)
6,439,308 Foam drive method 69 2000
 
DCNS SA (1)
5,861,137 Steam reformer with internal hydrogen purification 454 1996
 
DOVER TECHNOLOGIES INTERNATIONAL, INC. (1)
5,182,427 Self-regulating heater utilizing ferrite-type body 167 1990
 
DOWELL SCHLUMBERGER INCORPORATED (1)
4,940,095 Deployment/retrieval method and apparatus for well tools used with coiled tubing 126 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 83 1987
 
DSM N.V. (1)
4,254,297 Process for the conversion of dimethyl ether 84 1979
 
E.R. JOHNSON ASSOCIATES, INC. A CORP. OF DISTRICT OF COLUMBIA (1)
4,428,700 Method for disposing of waste materials 207 1981
 
EARTH TOOL COMPANY, LLC (1)
2002/0112,890 Conduit pulling apparatus and method for use in horizontal drilling 160 2002
 
EFFECTIVE EXPLORATION LLC (1)
2004/0035,582 System and method for subterranean access 175 2002
 
Electric Power Research Institute, Inc. (1)
5,911,898 Method and apparatus for providing multiple autoregulated temperatures 140 1995
 
ELECTRO-PETROLEUM, INC. (1)
4,382,469 Method of in situ gasification 85 1981
 
Electroflood Company (1)
4,199,025 Method and apparatus for tertiary recovery of oil 90 1977
 
Elektra Energie A.G. (1)
4,456,065 Heavy oil recovering 303 1981
 
ENEL (Ente Nazionale per l'Energia Elettrica) & CISE S.p.A. (1)
5,437,506 System for measuring the transfer time of a sound-wave in a gas and thereby calculating the temperature of the gas 262 1993
 
ENGELHARD CORPORATION (1)
4,927,857 Method of methanol production 298 1989
 
Eureka Oil ASA (1)
6,499,536 Method to increase the oil production from an oil reservoir 203 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 61 1990
 
EXXON PRODUCTION RESEARCH COMPANY (1)
4,390,067 Method of treating reservoirs containing very viscous crude oil or bitumen 372 1981
 
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY (1)
2002/0112,987 Slurry hydroprocessing for heavy oil upgrading using supported slurry catalysts 220 2000
 
FINE PARTICLE TECHNOLOGY CORP. (1)
4,926,941 Method of producing tar sand deposits containing conductive layers 229 1989
 
FRAMO ENGINEERING AS (1)
5,285,846 Thermal mineral extraction system 269 1992
 
GAS TECHNOLOGY INSTITUTE (1)
5,759,022 Method and system for reducing NO.sub.x and fuel emissions in a furnace 122 1995
 
Gen Syn Fuels (1)
7,048,051 Recovery of products from oil shale 100 2003
 
GENERAL ELECTRIC COMPANY (1)
7,124,584 System and method for heat recovery from geothermal source of heat 68 2005
 
GEOPETROL EQUIPMENT LTD. (1)
5,985,138 Tar sands extraction process 276 1998
 
GULF CANADA RESOURCES LIMITED/RESSOURCES GULF CANADA LIMITEE (1)
4,501,326 In-situ recovery of viscous hydrocarbonaceous crude oil 260 1983
 
GULF OIL CORPORATION, PITTSBURGH (1)
4,637,464 In situ retorting of oil shale with pulsed water purge 277 1984
 
GULF RESEARCH AND DEVELOPMENT COMPANY, A CORP. OF DE. (1)
4,299,285 Underground gasification of bituminous coal 260 1980
 
HARMON, JERALD L. (1)
6,584,406 Downhole process control method utilizing seismic communication 196 2000
 
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANY (1)
4,549,073 Current controller for resistive heating element 67 1981
 
HERCULES INCORPORATED (1)
6,417,268 Method for making hydrophobically associative polymers, methods of use and compositions 76 1999
 
Hrubetz Environmental Services, Inc. (1)
5,011,329 In situ soil decontamination method and apparatus 194 1990
 
ILLINOIS TOOL WORKS INC. (1)
6,313,431 Plasma cutter for auxiliary power output of a power source 55 2000
 
IMPERIAL ENERGY CORPORATION (1)
4,248,306 Geothermal petroleum refining 105 1979
 
INDEPENDENT ENERGY PARTNERS, INC. (1)
6,684,948 Apparatus and method for heating subterranean formations using fuel cells 197 2002
 
Intercontinental Econergy Associates, Inc. (1)
4,452,491 Recovery of hydrocarbons from deep underground deposits of tar sands 161 1981
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
4,577,503 Method and device for detecting a specific acoustic spectral feature 164 1984
 
International Coal Refining Company (1)
4,397,732 Process for coal liquefaction employing selective coal feed 259 1982
 
Iris Associates (1)
4,256,945 Alternating current electrically resistive heating element having intrinsic temperature control 297 1979
 
ITT RESEARCH INSTITUTE (1)
4,485,869 Recovery of liquid hydrocarbons from oil shale by electromagnetic heating in situ 325 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 126 1982
 
JUDD, DANIEL (1)
4,856,587 Recovery of oil from oil-bearing formation by continually flowing pressurized heated gas through channel alongside matrix 266 1988
 
Justheim Pertroleum Company (1)
4,384,614 Method of retorting oil shale by velocity flow of super-heated air 208 1981
 
KAI TECHNOLOGIES, INC. (1)
5,152,341 Electromagnetic method and apparatus for the decontamination of hazardous material-containing volumes 112 1991
 
KELLOGG BROWN & ROOT, INC. (1)
6,357,526 Field upgrading of heavy oil and bitumen 216 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 97 1991
 
Kraftwerk Union Aktiengesellschaft (1)
4,608,818 Medium-load power-generating plant with integrated coal gasification plant 268 1984
 
KRUPP KOPPERS GMBH (1)
4,994,093 Method of producing methanol synthesis gas 265 1990
 
LATJET SYSTEMS LLC (1)
6,283,230 Method and apparatus for lateral well drilling utilizing a rotating nozzle 96 1999
 
LOCKHEED MARTIN CORPORATION (1)
6,467,543 System and process for secondary hydrocarbon recovery 196 2000
 
LONGYEAR COMPANY (1)
4,823,890 Reverse circulation bit apparatus 143 1988
 
M.W. KELLOGG COMPANY, THE (1)
4,407,973 Methanol from coal and natural gas 266 1982
 
Magrange, Inc. (1)
5,064,006 Downhole combination tool 296 1988
 
MAST AUTOMATION, INC. (1)
5,777,229 Sensor transport system for combination flash butt welder 183 1996
 
MEGGITT AVIOINICS, INC. (1)
5,828,797 Fiber optic linked flame sensor 163 1996
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
4,412,124 Electrode unit for electrically heating underground hydrocarbon deposits 262 1981
 
Motoren-Werke Mannheim AG (1)
4,378,048 Substoichiometric combustion of low heating value gases using different platinum catalysts 262 1981
 
MUELLER, THOMAS D. (1)
4,572,229 Variable proportioner 68 1984
 
NALCO COMPANY (1)
5,654,261 Permeability modifying composition for use in oil recovery 78 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 281 1995
 
NEXANS (1)
2002/0028,070 HEATING SYSTEM FOR CRUDE OIL TRANSPORTING METALLIC TUBES 138 1999
 
Nippondenso Co., Ltd. (1)
4,639,712 Sheathed heater 60 1985
 
NKK Corporation (1)
5,261,490 Method for dumping and disposing of carbon dioxide gas and apparatus therefor 274 1992
 
NOWSCO WELL SERVICE LTD. (1)
6,015,015 Insulated and/or concentric coiled tubing 317 1997
 
OCCIDENTAL SHALE INC. (1)
4,623,444 Upgrading shale oil by a combination process 198 1985
 
Oil Chem Technologies (1)
6,022,834 Alkaline surfactant polymer flooding composition and process 110 1997
 
OIL SANDS UNDERGROUND MINING, INC. (1)
2008/0017,416 METHOD OF DRILLING FROM A SHAFT FOR UNDERGROUND RECOVERY OF HYDROCARBONS 65 2007
 
OIL STATES ENERGY SERVICES, L.L.C. (1)
6,516,891 Dual string coil tubing injector assembly 92 2001
 
Oil Trieval Corporation (1)
4,305,463 Oil recovery method and apparatus 282 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 269 1985
 
PARHELION, INC. (1)
5,097,903 Method for recovering intractable petroleum from subterranean formations 209 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 29 1995
 
Patton Consulting, Inc. (1)
5,103,920 Surveying system and method for locating target subterranean bodies 213 1990
 
PETROLEO BRASILEIRO S.A. - PETROBRAS (1)
5,182,792 Process of electric pipeline heating utilizing heating elements inserted in pipelines 259 1991
 
PIRSON, JACQUE (1)
4,491,179 Method for oil recovery by in situ exfoliation drive 152 1982
 
QUICK CONNECTORS, INC. (1)
5,289,882 Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas 290 1991
 
Ramcor, Inc. (1)
4,197,911 Process for in situ coal gasification 259 1978
 
RAMEX SYN-FUELS INTERNATIONAL, INC. (1)
4,928,765 Method and apparatus for shale gas recovery 278 1988
 
Rangewest Technologies Ltd. (1)
6,039,121 Enhanced lift method and apparatus for the production of hydrocarbons 154 1997
 
Raychem GmbH (1)
4,733,057 Sheet heater 165 1986
 
RAYCHEM S.A. (1)
5,579,575 Method and apparatus for forming an electrical connection 144 1994
 
RED OAK PARTNERSHIP, L.P., THE (1)
5,435,666 Methods for isolating a water table and for soil remediation 204 1993
 
Resource Technology Associates (1)
5,008,085 Apparatus for thermal treatment of a hydrocarbon stream 268 1989
 
RKK, LTD (1)
5,050,386 Method and apparatus for containment of hazardous material migration in the earth 294 1990
 
ROBERT L.MAGNIE AND ASSOCIATES,INC. A CORP OF COLO. (1)
4,183,405 Enhanced recoveries of petroleum and hydrogen from underground reservoirs 281 1978
 
ROCKWELL INTERNATIONAL CORPORATION (1)
4,498,531 Emission controller for indirect fired downhole steam generators 123 1982
 
S-CAL RESEARCH CORPORATION (1)
4,706,751 Heavy oil recovery process 259 1986
 
SCHLUMBERGER TECHNOLOGIES, INC. (1)
6,354,373 Expandable tubing for a well bore hole and method of expanding 400 1998
 
SCHLUMBERGER TECHNOLOGY CORPORATION (1)
6,318,469 Completion equipment having a plurality of fluid paths for use in a well 19 2000
 
SCIENCE & ENGINEERING ASSOCIATES, INC. (1)
6,035,701 Method and system to locate leaks in subsurface containment structures using tracer gases 190 1998
 
Scientific Engineering Instruments, Inc. (1)
5,349,859 Method and apparatus for measuring acoustic wave velocity using impulse response 263 1991
 
Scioto County Regional Water District #1 (1)
6,422,318 Horizontal well system 176 2000
 
SCOTOIL SERVICES LIMITED (1)
6,805,194 Gas and oil production 134 2002
 
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. (1)
4,605,680 Conversion of synthesis gas to diesel fuel and gasoline 270 1985
 
Societe Nationale Elf Aquitaine (1)
4,513,816 Sealing system for a well bore in which a hot fluid is circulated 259 1984
 
SOUTHERN CALIFORNIA GAS COMPANY (1)
5,769,569 In-situ thermal desorption of heavy hydrocarbons in vadose zone 153 1996
 
Sperika Enterprises Ltd. (1)
5,854,472 Low-voltage and low flux density heating system 52 1996
 
Steel Ventures, L.L.C. (1)
7,032,809 Seam-welded metal pipe and method of making the same without seam anneal 86 2003
 
STILL-MAN HEATING PRODUCTS, INC. (1)
5,066,852 Thermoplastic end seal for electric heating elements 165 1990
 
Sulcon, Inc. (1)
4,518,548 Method of overlaying sulphur concrete on horizontal and vertical surfaces 181 1983
 
SYNFUEL, A LIMITED PARTNERSHIP OF IN, A CORP. OF IN. (1)
4,401,162 In situ oil shale process 121 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 349 1997
 
Terra Tek, Inc. (1)
4,384,613 Method of in-situ retorting of carbonaceous material for recovery of organic liquids and gases 279 1980
 
The Babcock & Wilcox Company (1)
4,848,924 Acoustic pyrometer 276 1987
 
The Badger Company, Inc. (1)
4,193,451 Method for production of organic products from kerogen 271 1977
 
The Board of Regents of the University of Oklahoma (1)
5,201,219 Method and apparatus for measuring free hydrocarbons and hydrocarbons potential from whole core 247 1990
 
The BOC Group, Inc. (1)
5,332,036 Method of recovery of natural gases from underground coal formations 135 1992
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5,525,322 Method for simultaneous recovery of hydrogen from water and from hydrocarbons 320 1994
 
THE TEXAS A&M UNIVERSITY SYSTEM (1)
5,305,239 Ultrasonic non-destructive evaluation of thin specimens 182 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 204 1996
 
Tokyo Shibaura Denki Kabushiki Kaisha (1)
4,280,046 Sheath heater 57 1979
 
TOMOSEIS, INC. (1)
6,388,947 Multi-crosswell profile 3D imaging and method 169 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 14 2001
 
TUBEL TECHNOLOGIES, INC. (1)
6,913,079 Method and system for monitoring smart structures utilizing distributed optical sensors 192 2001
 
TYCO ELECTRONICS CORPORATION (1)
6,288,372 Electric cable having braidless polymeric ground plane providing fault detection 170 1999
 
Uentech International Corporation (1)
6,353,706 Optimum oil-well casing heating 210 2000
 
UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION (1)
4,776,638 Method and apparatus for conversion of coal in situ 298 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 161 1979
 
W. B. COMBUSTION, INC. (1)
4,401,099 Single-ended recuperative radiant tube assembly and method 135 1980
 
WESTERN ATLAS INTERNATIONAL, INC. (1)
4,282,587 Method for monitoring the recovery of minerals from shallow geological formations 157 1979
 
WESTERN RESEARCH INSTITUTE (1)
4,848,460 Contained recovery of oily waste 174 1988
 
WORCESTER POLYTECHNIC INSTITUTE (1)
6,152,987 Hydrogen gas-extraction module and method of fabrication 305 1998
 
Other [Check patent profile for assignment information] (44)
4,228,853 Petroleum production method 143 1978
4,243,101 Coal gasification method 268 1978
4,446,917 Method and apparatus for producing viscous or waxy crude oils 147 1979
4,306,621 Method for in situ coal gasification operations 268 1980
4,423,311 Electric heating apparatus for de-icing pipes 270 1981
4,444,255 Apparatus and process for the recovery of oil 264 1981
4,344,483 Multiple-site underground magnetic heating of hydrocarbons 274 1981
4,444,258 In situ recovery of oil from oil shale 274 1981
4,455,215 Process for the geoconversion of coal into oil 150 1982
4,442,896 Treatment of underground beds 230 1982
4,479,541 Method and apparatus for recovery of oil, gas and mineral deposits by panel opening 249 1982
4,609,041 Well hot oil system 133 1983
4,538,682 Method and apparatus for removing oil well paraffin 144 1983
4,762,425 System for temperature profile measurement in large furnances and kilns and method therefor 273 1987
4,895,206 Pulsed in situ exothermic shock wave and retorting process for hydrocarbon recovery and detoxification of selected wastes 271 1989
5,027,896 Method for in-situ recovery of energy raw material by the introduction of a water/oxygen slurry 174 1990
5,082,054 In-situ tuned microwave oil extraction process 364 1990
5,217,076 Method and apparatus for improved recovery of oil from porous, subsurface deposits (targevcir oricess) 375 1991
5,360,067 Vapor-extraction system for removing hydrocarbons from soil 177 1993
5,400,430 Method for injection well stimulation 138 1994
5,458,774 Corrugated spiral membrane module 76 1994
5,624,188 Acoustic thermometer 269 1994
5,823,256 Ferrule--type fitting for sealing an electrical conduit in a well head barrier 71 1996
6,112,808 Method and apparatus for subterranean thermal conditioning 258 1997
5,984,582 Method of extracting a hollow unit laid in the ground 162 1997
5,879,110 Methods for encapsulating buried waste in situ with molten wax 111 1998
6,942,032 Resistive down hole heating tool 60 2003
7,114,880 Process for the excavation of buried waste 91 2004
2005/0269,091 Reducing viscosity of oil for production from a hydrocarbon containing formation 105 2005
2008/0283,241 Downhole burner wells for in situ conversion of organic-rich rock formations 108 2008
2009/0071,652 IN SITU HEAT TREATMENT FROM MULTIPLE LAYERS OF A TAR SANDS FORMATION 85 2008
2009/0090,509 IN SITU RECOVERY FROM RESIDUALLY HEATED SECTIONS IN A HYDROCARBON CONTAINING FORMATION 88 2008
2009/0095,480 IN SITU HEAT TREATMENT OF A TAR SANDS FORMATION AFTER DRIVE PROCESS TREATMENT 82 2008
2009/0120,646 ELECTRICALLY ISOLATING INSULATED CONDUCTOR HEATER 97 2008
2009/0194,282 IN SITU OXIDATION OF SUBSURFACE FORMATIONS 95 2008
2009/0194,286 MULTI-STEP HEATER DEPLOYMENT IN A SUBSURFACE FORMATION 92 2008
2009/0194,287 INDUCTION HEATERS USED TO HEAT SUBSURFACE FORMATIONS 94 2008
2009/0194,329 METHODS FOR FORMING WELLBORES IN HEATED FORMATIONS 100 2008
2009/0194,524 METHODS FOR FORMING LONG SUBSURFACE HEATERS 97 2008
2009/0200,022 CRYOGENIC TREATMENT OF GAS 93 2008
2009/0200,025 HIGH TEMPERATURE METHODS FOR FORMING OXIDIZER FUEL 77 2008
2009/0200,031 IRREGULAR SPACING OF HEAT SOURCES FOR TREATING HYDROCARBON CONTAINING FORMATIONS 96 2008
2009/0200,290 VARIABLE VOLTAGE LOAD TAP CHANGING TRANSFORMER 95 2008
2009/0038,795 Hydrocarbon Recovery From Impermeable Oil Shales Using Sets of Fluid-Heated Fractures 78 2008

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SHELL OIL COMPANY (56)
8,224,165 Temperature limited heater utilizing non-ferromagnetic conductor 16 2006
8,381,806 Joint used for coupling long heaters 4 2007
8,083,813 Methods of producing transportation fuel 31 2007
8,662,175 Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities 1 2008
8,459,359 Treating nahcolite containing formations and saline zones 7 2008
8,381,815 Production from multiple zones of a tar sands formation 9 2008
8,327,681 Wellbore manufacturing processes for in situ heat treatment processes 4 2008
8,536,497 Methods for forming long subsurface heaters 0 2008
8,276,661 Heating subsurface formations by oxidizing fuel on a fuel carrier 16 2008
8,272,455 Methods for forming wellbores in heated formations 5 2008
8,240,774 Solution mining and in situ treatment of nahcolite beds 17 2008
8,196,658 Irregular spacing of heat sources for treating hydrocarbon containing formations 24 2008
8,162,059 Induction heaters used to heat subsurface formations 28 2008
8,146,661 Cryogenic treatment of gas 30 2008
8,146,669 Multi-step heater deployment in a subsurface formation 28 2008
8,113,272 Three-phase heaters with common overburden sections for heating subsurface formations 9 2008
8,627,887 In situ recovery from a hydrocarbon containing formation 0 2008
8,752,904 Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations 0 2009
8,177,305 Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations 28 2009
8,172,335 Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations 23 2009
8,162,405 Using tunnels for treating subsurface hydrocarbon containing formations 25 2009
8,151,907 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations 28 2009
8,450,540 Compositions produced using an in situ heat treatment process 7 2009
8,353,347 Deployment of insulated conductors for treating subsurface formations 3 2009
8,281,861 Circulated heated transfer fluid heating of subsurface hydrocarbon formations 15 2009
8,267,170 Offset barrier wells in subsurface formations 13 2009
8,267,185 Circulated heated transfer fluid systems used to treat a subsurface formation 14 2009
8,261,832 Heating subsurface formations with fluids 19 2009
8,256,512 Movable heaters for treating subsurface hydrocarbon containing formations 7 2009
8,220,539 Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation 23 2009
8,636,323 Mines and tunnels for use in treating subsurface hydrocarbon containing formations 0 2009
8,562,078 Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations 3 2009
8,448,707 Non-conducting heater casings 0 2010
8,434,555 Irregular pattern treatment of a subsurface formation 8 2010
8,327,932 Recovering energy from a subsurface formation 7 2010
8,608,249 In situ thermal processing of an oil shale formation 1 2010
8,192,682 High strength alloys 18 2010
8,225,866 In situ recovery from a hydrocarbon containing formation 14 2010
8,233,782 Grouped exposed metal heaters 7 2010
8,356,935 Methods for assessing a temperature in a subsurface formation 4 2010
8,257,112 Press-fit coupling joint for joining insulated conductors 5 2010
8,151,880 Methods of making transportation fuel 26 2010
8,739,874 Methods for heating with slots in hydrocarbon formations 0 2011
8,701,768 Methods for treating hydrocarbon formations 0 2011
8,701,769 Methods for treating hydrocarbon formations based on geology 0 2011
8,631,866 Leak detection in circulated fluid systems for heating subsurface formations 0 2011
8,502,120 Insulating blocks and methods for installation in insulated conductor heaters 1 2011
8,485,256 Variable thickness insulated conductors 2 2011
8,230,927 Methods and systems for producing fluid from an in situ conversion process 7 2011
8,579,031 Thermal processes for subsurface formations 0 2011
8,732,946 Mechanical compaction of insulator for insulated conductor splices 0 2011
8,586,866 Hydroformed splice for insulated conductors 0 2011
8,586,867 End termination for three-phase insulated conductors 0 2011
8,555,971 Treating tar sands formations with dolomite 2 2012
8,485,252 In situ recovery from a hydrocarbon containing formation 6 2012
8,485,847 Press-fit coupling joint for joining insulated conductors 2 2012
 
COMPANY, SHELL OIL (1)
8,191,630 Creating fluid injectivity in tar sands formations 25 2010
 
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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