Heating systems for heating subsurface formations

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO

7931086

APP PUB NO

20090095477A1

SERIAL NO

12106060

Stats

ATTORNEY / AGENT: (SPONSORED)

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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, TX2325

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nguyen, Scott Vinh Houston, US 17 1552
Vinegar, Harold J Bellaire, US 330 66580

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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Other [Check patent profile for assignment information] (41)
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5059303 Oil stabilization 226 1989
5133406 Generating oxygen-depleted air useful for increasing methane production 131 1991
5388640 Method for producing methane-containing gaseous mixtures 289 1993
5388641 Method for reducing the inert gas fraction in methane-containing gaseous mixtures obtained from underground formations 285 1993
5388642 Coalbed methane recovery using membrane separation of oxygen from air 285 1993
5388643 Coalbed methane recovery using pressure swing adsorption separation 284 1993
5388645 Method for producing methane-containing gaseous mixtures 303 1993
5439054 Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation 293 1994
5454666 Method for disposing of unwanted gaseous fluid components within a solid carbonaceous subterranean formation 294 1994
5566755 Method for recovering methane from a solid carbonaceous subterranean formation 222 1995
 
ILLINOIS TOOL WORKS INC. (1)
6313431 Plasma cutter for auxiliary power output of a power source 72 2000
 
Occidental Oil Shale, Inc. (2)
4437519 Reduction of shale oil pour point 212 1981
4605489 Upgrading shale oil by a combination process 219 1985
 
QUICK CONNECTORS, INC. (1)
5289882 Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas 323 1991
 
EVEREADY BATTERY COMPANY, INC. (1)
2008/0216,321 SHAVING AID DELIVERY SYSTEM FOR USE WITH WET SHAVE RAZORS 27 2008
 
GULF RESEARCH AND DEVELOPMENT COMPANY, A CORP. OF DE. (1)
4299285 Underground gasification of bituminous coal 279 1980
 
International Coal Refining Company (1)
4397732 Process for coal liquefaction employing selective coal feed 278 1982
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
4412124 Electrode unit for electrically heating underground hydrocarbon deposits 281 1981
 
Justheim Pertroleum Company (1)
4384614 Method of retorting oil shale by velocity flow of super-heated air 243 1981
 
WORLD ENERGY SYSTEMS INCORPORATED (5)
4597441 Recovery of oil by in situ hydrogenation 329 1984
4691771 Recovery of oil by in-situ combustion followed by in-situ hydrogenation 300 1986
6016867 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking 332 1998
6016868 Production of synthetic crude oil from heavy hydrocarbons recovered by in situ hydrovisbreaking 335 1998
6328104 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking 333 2000
 
OIL SANDS UNDERGROUND MINING, INC. (1)
2008/0017,416 METHOD OF DRILLING FROM A SHAFT FOR UNDERGROUND RECOVERY OF HYDROCARBONS 89 2007
 
ALBERTA INNOVATES - ENERGY AND ENVIRONMENT SOLUTIONS (2)
5456315 Horizontal well gravity drainage combustion process for oil recovery 233 1994
6026914 Wellbore profiling system 185 1998
 
DOVER TECHNOLOGIES INTERNATIONAL, INC. (1)
5182427 Self-regulating heater utilizing ferrite-type body 231 1990
 
TYCO INTERNATIONAL (PA), INC., A CORPORATION OF NEVADA (2)
4698583 Method of monitoring a heater for faults 177 1985
4849611 Self-regulating heater employing reactive components 205 1985
 
EXXON PRODUCTION RESEARCH COMPANY (1)
4390067 Method of treating reservoirs containing very viscous crude oil or bitumen 397 1981
 
Resource Technology Associates (1)
5008085 Apparatus for thermal treatment of a hydrocarbon stream 290 1989
 
GAS TECHNOLOGY INSTITUTE (1)
5759022 Method and system for reducing NO.sub.x and fuel emissions in a furnace 141 1995
 
Institut Francais du Petrole (3)
5217075 Method and device for carrying out interventions in wells where high temperatures prevail 95 1991
5363094 Stationary system for the active and/or passive monitoring of an underground deposit 229 1992
6605566 Supported bimetallic catalyst with a strong interaction between a group VIII metal and tin, and its use in a catalytic reforming process 74 2001
 
Sulcon, Inc. (1)
4518548 Method of overlaying sulphur concrete on horizontal and vertical surfaces 200 1983
 
HALLIBURTON ENERGY SERVICES, INC. (5)
5899958 Logging while drilling borehole imaging and dipmeter device 255 1995
5926437 Method and apparatus for seismic exploration 166 1997
6951250 Sealant compositions and methods of using the same to isolate a subterranean zone from a disposal well 84 2003
7147057 Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore 147 2003
7337841 Casing comprising stress-absorbing materials and associated methods of use 58 2004
 
E.R. JOHNSON ASSOCIATES, INC. A CORP. OF DISTRICT OF COLUMBIA (1)
4428700 Method for disposing of waste materials 228 1981
 
HALLIBURTON COMPANY (2)
4445574 Continuous borehole formed horizontally through a hydrocarbon producing formation 204 1982
4808925 Three magnet casing collar locator 212 1987
 
KELLOGG BROWN & ROOT, INC. (1)
6357526 Field upgrading of heavy oil and bitumen 246 2000
 
THE TEXAS A&M UNIVERSITY SYSTEM (1)
5305239 Ultrasonic non-destructive evaluation of thin specimens 204 1989
 
SOUTHERN CALIFORNIA GAS COMPANY (1)
5769569 In-situ thermal desorption of heavy hydrocarbons in vadose zone 174 1996
 
FINE PARTICLE TECHNOLOGY CORPORATION (1)
4926941 Method of producing tar sand deposits containing conductive layers 267 1989
 
KURTIS, SOMA (1)
5097903 Method for recovering intractable petroleum from subterranean formations 231 1991
 
RKK, Ltd. (1)
5050386 Method and apparatus for containment of hazardous material migration in the earth 321 1990
 
ExxonMobil Upstream Research Company (6)
5339897 Recovery and upgrading of hydrocarbon utilizing in situ combustion and horizontal wells 350 1992
6918444 Method for production of hydrocarbons from organic-rich rock 136 2001
6755251 Downhole gas separation method and system 116 2002
7128150 Acid gas disposal method 115 2002
7331385 Methods of treating a subterranean formation to convert organic matter into producible hydrocarbons 120 2004
2007/0246,994 In situ co-development of oil shale with mineral recovery 124 2007
 
COMPUTALOG LTD. (1)
6192748 Dynamic orienting reference system for directional drilling 231 1998
 
EFFECTIVE EXPLORATION LLC (1)
2004/0035,582 System and method for subterranean access 196 2002
 
Gen Syn Fuels (1)
7048051 Recovery of products from oil shale 130 2003
 
NENNIGER, JOHN (1)
5517593 Control system for well stimulation apparatus with response time temperature rise used in determining heater control temperature setpoint 302 1995
 
Indugas, Inc. (3)
4913065 In situ thermal waste disposal system 226 1989
5020596 Enhanced oil recovery system with a radiant tube heater 287 1990
5082055 Gas fired radiant tube heater 305 1991
 
NOVELIS INC. (6)
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 0 2001
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 0 2001
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 0 2001
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 0 2001
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 0 2001
2002/0084,056 Aluminium alloy strips with high surface homogeneity and method for making same 0 2001
 
GENERAL ELECTRIC COMPANY (1)
7124584 System and method for heat recovery from geothermal source of heat 74 2005
 
FRAMO ENGINEERING AS (1)
5285846 Thermal mineral extraction system 289 1992
 
OCCIDENTAL SHALE INC. (1)
4623444 Upgrading shale oil by a combination process 217 1985
 
PRATS, MICHAEL (2)
5984010 Hydrocarbon recovery systems and methods 284 1997
6173775 Systems and methods for hydrocarbon recovery 284 1999
 
The BOC Group, Inc. (1)
5332036 Method of recovery of natural gases from underground coal formations 163 1992
 
DRESSER INDUSTRIES, INC. (1)
4852648 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 90 1987
 
DCNS SA (1)
5861137 Steam reformer with internal hydrogen purification 496 1996
 
CRI International, Inc. (1)
5688736 Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst 132 1995
 
GULF OIL CORPORATION, PITTSBURGH (1)
4637464 In situ retorting of oil shale with pulsed water purge 310 1984
 
ITT RESEARCH INSTITUTE, A NOT-FOR-PROFIT CORP. OF IL (1)
4485868 Method for recovery of viscous hydrocarbons by electromagnetic heating in situ 149 1982
 
ENGELHARD CORPORATION (1)
4927857 Method of methanol production 318 1989
 
KAI Technologies, Inc. (1)
5152341 Electromagnetic method and apparatus for the decontamination of hazardous material-containing volumes 149 1991
 
AIR PRODUCTS AND CHEMICALS, INC. (1)
4734115 Low pressure process for C.sub.3.sup.+ liquids recovery from process product gas 211 1986
 
SHELL OIL COMPANY (349)
4359687 Method and apparatus for determining shaliness and oil saturations in earth formations using induced polarization in the frequency domain 293 1980
4398151 Method for correcting an electrical log for the presence of shale in a formation 282 1982
4583046 Apparatus for focused electrode induced polarization logging 284 1983
4499209 Process for the preparation of a Fischer-Tropsch catalyst and preparation of hydrocarbons from syngas 233 1983
4540882 Method of determining drilling fluid invasion 295 1983
4542648 Method of correlating a core sample with its original position in a borehole 296 1983
4571491 Method of imaging the atomic number of a sample 308 1983
4583242 Apparatus for positioning a sample in a computerized axial tomographic scanner 286 1983
4613754 Tomographic calibration apparatus 304 1983
4635197 High resolution tomographic imaging method 280 1983
4644283 In-situ method for determining pore size distribution, capillary pressure and permeability 294 1984
4570715 Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature 353 1984
4663711 Method of analyzing fluid saturation using computerized axial tomography 280 1984
4572299 Heater cable installation 322 1984
4585066 Well treating process for installing a cable bundle containing strands of changing diameter 294 1984
4704514 Heating rate variant elongated electrical resistance heater 347 1985
4671102 Method and apparatus for determining distribution of fluids 305 1985
4626665 Metal oversheathed electrical resistance heater 331 1985
4719423 NMR imaging of materials for transport properties 309 1985
4728892 NMR imaging of materials 336 1985
4640352 In-situ steam drive oil recovery process 335 1985
4730162 Time-domain induced polarization logging method and apparatus with gated amplification level 279 1985
4658215 Method for induced polarization logging 283 1986
4616705 Mini-well temperature profiling process 301 1986
4769602 Determining multiphase saturations by NMR imaging of multiple nuclides 303 1986
4769606 Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations 285 1986
4743854 In-situ induced polarization method for determining formation permeability 280 1986
4827761 Sample holder 300 1987
4856341 Apparatus for analysis of failure of material 286 1987
5306640 Method for determining preselected properties of a crude oil 285 1987
4886118 Conductively heating a subterranean oil shale to create permeability and subsequently produce oil 397 1988
4866983 Analytical methods and apparatus for measuring the oil content of sponge core 283 1988
4893504 Method for determining capillary pressure and relative permeability by imaging 209 1988
4884455 Method for analysis of failure of material employing imaging 284 1989
4987368 Nuclear magnetism logging tool using high-temperature superconducting squid detectors 306 1989
5042579 Method and apparatus for producing tar sand deposits containing conductive layers 118 1990
5046559 Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers 342 1990
5060726 Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication 307 1990
5060287 Heater utilizing copper-nickel alloy core 339 1990
5065818 Subterranean heaters 332 1991
5103909 Profile control in enhanced oil recovery 122 1991
5189283 Current to power crossover heater control 301 1991
5168927 Method utilizing spot tracer injection and production induced transport for measurement of residual oil saturation 285 1991
5226961 High temperature wellbore cement slurry 314 1992
5255742 Heat injection process 361 1992
5297626 Oil recovery process 339 1992
5236039 Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale 378 1992
5366012 Method of completing an uncased section of a borehole 561 1993
5391291 Hydrogenation catalyst and process 295 1993
5468372 Process of hydrotreating and/or hydrocracking hydrocarbon streams or tail gas treating sulfur-containing gas streams 130 1993
5392854 Oil recovery process 333 1993
5404952 Heat injection process and apparatus 318 1993
5411089 Heat injection process 312 1993
5433271 Heat injection process 303 1993
5409071 Method to cement a wellbore 292 1994
5497087 NMR logging of natural gas reservoirs 320 1994
5498960 NMR logging of natural gas in reservoirs 336 1994
5541517 Method for drilling a borehole from one cased borehole to another cased borehole 301 1995
5862858 Flameless combustor 337 1996
5899269 Flameless combustor 338 1996
5744025 Process for hydrotreating metal-contaminated hydrocarbonaceous feedstock 122 1997
6056057 Heater well method and apparatus 356 1997
6079499 Heater well method and apparatus 348 1997
6094048 NMR logging of natural gas reservoirs 286 1997
6023554 Electrical heater 345 1998
6102122 Control of heat injection based on temperature and in-situ stress measurement 312 1998
6019172 Flameless combustor 323 1999
6218333 Preparation of a hydrotreating catalyst 127 1999
6540018 Method and apparatus for heating a wellbore 177 1999
6290841 Hydrotreating process using sulfur activated non-calcined catalyst 126 2000
6679332 Petroleum well having downhole sensors, communication and power 218 2001
6715550 Controllable gas-lift well and valve 164 2001
2002/0036,085 Toroidal choke inductor for wireless communication and control 80 2001
6981553 Controlled downhole chemical injection 157 2001
7147059 Use of downhole high pressure gas in a gas-lift well and associated methods 161 2001
7170424 Oil well casting electrical power pick-off points 155 2001
7259688 Wireless reservoir production control 113 2001
6581684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids 285 2001
6588503 In Situ thermal processing of a coal formation to control product composition 240 2001
6588504 In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids 246 2001
6591906 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content 269 2001
6591907 In situ thermal processing of a coal formation with a selected vitrinite reflectance 238 2001
6607033 In Situ thermal processing of a coal formation to produce a condensate 234 2001
6609570 In situ thermal processing of a coal formation and ammonia production 234 2001
6688387 In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate 267 2001
6698515 In situ thermal processing of a coal formation using a relatively slow heating rate 235 2001
6702016 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer 251 2001
6708758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas 237 2001
6712135 In situ thermal processing of a coal formation in reducing environment 233 2001
6712136 In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing 296 2001
6712137 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material 232 2001
6715546 In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore 262 2001
6715547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation 237 2001
6715548 In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids 237 2001
6715549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio 193 2001
6719047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment 246 2001
6722429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas 260 2001
6722430 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio 233 2001
6722431 In situ thermal processing of hydrocarbons within a relatively permeable formation 263 2001
6725920 In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products 238 2001
6725921 In situ thermal processing of a coal formation by controlling a pressure of the formation 159 2001
6725928 In situ thermal processing of a coal formation using a distributed combustor 233 2001
6729395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells 248 2001
6729396 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range 231 2001
6729397 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance 237 2001
6729401 In situ thermal processing of a hydrocarbon containing formation and ammonia production 237 2001
6732794 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 238 2001
6732795 In situ thermal processing of a hydrocarbon containing formation to pyrolyze a selected percentage of hydrocarbon material 197 2001
6732796 In situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio 261 2001
6736215 In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestration 243 2001
6739393 In situ thermal processing of a coal formation and tuning production 232 2001
6739394 Production of synthesis gas from a hydrocarbon containing formation 240 2001
6742587 In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation 232 2001
6742588 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content 269 2001
6742589 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources 231 2001
6742593 In situ thermal processing of a hydrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation 239 2001
6745831 In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formation 262 2001
6745832 Situ thermal processing of a hydrocarbon containing formation to control product composition 224 2001
6745837 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate 245 2001
6749021 In situ thermal processing of a coal formation using a controlled heating rate 235 2001
6752210 In situ thermal processing of a coal formation using heat sources positioned within open wellbores 259 2001
6758268 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate 237 2001
6761216 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas 233 2001
6763886 In situ thermal processing of a coal formation with carbon dioxide sequestration 216 2001
6769483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources 248 2001
6769485 In situ production of synthesis gas from a coal formation through a heat source wellbore 236 2001
6789625 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources 238 2001
6805195 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas 225 2001
6820688 In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratio 215 2001
6866097 In situ thermal processing of a coal formation to increase a permeability/porosity of the formation 198 2001
6871707 In situ thermal processing of a hydrocarbon containing formation with carbon dioxide sequestration 192 2001
6877554 In situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control 190 2001
6880635 In situ production of synthesis gas from a coal formation, the synthesis gas having a selected H2 to CO ratio 195 2001
6889769 In situ thermal processing of a hydrocarbon containing formation with a selected moisture content 186 2001
6896053 In situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources 215 2001
6902003 In situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content 177 2001
6902004 In situ thermal processing of a hydrocarbon containing formation using a movable heating element 191 2001
6910536 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor 179 2001
6913078 In Situ thermal processing of hydrocarbons within a relatively impermeable formation 201 2001
6948563 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content 180 2001
6953087 Thermal processing of a hydrocarbon containing formation to increase a permeability of the formation 211 2001
6959761 In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells 176 2001
6966372 In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids 181 2001
6973967 Situ thermal processing of a coal formation using pressure and/or temperature control 175 2001
6994160 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range 207 2001
6994168 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio 174 2001
6997255 In situ thermal processing of a hydrocarbon containing formation in a reducing environment 174 2001
7036583 In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation 200 2001
7086468 In situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores 188 2001
7096941 In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer 169 2001
7096953 In situ thermal processing of a coal formation using a movable heating element 215 2001
2002/0027,001 In situ thermal processing of a coal formation to produce a selected gas mixture 222 2001
2002/0033,253 In situ thermal processing of a hydrocarbon containing formation using insulated conductor heat sources 234 2001
2002/0036,089 In situ thermal processing of a hydrocarbon containing formation using distributed combustor heat sources 229 2001
2002/0038,069 In situ thermal processing of a coal formation to produce a mixture of olefins, oxygenated hydrocarbons, and aromatic hydrocarbons 220 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 235 2001
2002/0040,780 In situ thermal processing of a hydrocarbon containing formation to produce a selected mixture 232 2001
2002/0053,431 In situ thermal processing of a hydrocarbon containing formation to produce a selected ratio of components in a gas 231 2001
2002/0076,212 In situ thermal processing of a hydrocarbon containing formation producing a mixture with oxygenated hydrocarbons 232 2001
2003/0085,034 In situ thermal processing of a coal formation to produce pyrolsis products 222 2001
6759364 Arsenic removal catalyst and method for making same 90 2001
6821501 Integrated flameless distributed combustion/steam reforming membrane reactor for hydrogen production and use thereof in zero emissions hybrid power system 111 2002
6782947 In situ thermal processing of a relatively impermeable formation to increase permeability of the formation 293 2002
6877555 In situ thermal processing of an oil shale formation while inhibiting coking 226 2002
6880633 In situ thermal processing of an oil shale formation to produce a desired product 243 2002
6915850 In situ thermal processing of an oil shale formation having permeable and impermeable sections 197 2002
6918442 In situ thermal processing of an oil shale formation in a reducing environment 196 2002
6918443 In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range 206 2002
6923257 In situ thermal processing of an oil shale formation to produce a condensate 217 2002
6929067 Heat sources with conductive material for in situ thermal processing of an oil shale formation 215 2002
6948562 Production of a blending agent using an in situ thermal process in a relatively permeable formation 219 2002
6951247 In situ thermal processing of an oil shale formation using horizontal heat sources 234 2002
6964300 In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore 225 2002
6966374 In situ thermal recovery from a relatively permeable formation using gas to increase mobility 186 2002
6981548 In situ thermal recovery from a relatively permeable formation 185 2002
6991032 In situ thermal processing of an oil shale formation using a pattern of heat sources 209 2002
6994169 In situ thermal processing of an oil shale formation with a selected property 197 2002
6997518 In situ thermal processing and solution mining of an oil shale formation 217 2002
7004247 Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation 227 2002
7004251 In situ thermal processing and remediation of an oil shale formation 232 2002
7032660 In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation 213 2002
7040397 Thermal processing of an oil shale formation to increase permeability of the formation 204 2002
7040398 In situ thermal processing of a relatively permeable formation in a reducing environment 177 2002
7040399 In situ thermal processing of an oil shale formation using a controlled heating rate 202 2002
7040400 In situ thermal processing of a relatively impermeable formation using an open wellbore 215 2002
7051807 In situ thermal recovery from a relatively permeable formation with quality control 146 2002
7055600 In situ thermal recovery from a relatively permeable formation with controlled production rate 214 2002
7096942 In situ thermal processing of a relatively permeable formation while controlling pressure 229 2002
2003/0079,877 In situ thermal processing of a relatively impermeable formation in a reducing environment 253 2002
2003/0146,002 Removable heat sources for in situ thermal processing of an oil shale formation 249 2002
6932155 In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well 241 2002
6969123 Upgrading and mining of coal 230 2002
6991045 Forming openings in a hydrocarbon containing formation using magnetic tracking 188 2002
7011154 In situ recovery from a kerogen and liquid hydrocarbon containing formation 233 2002
7051808 Seismic monitoring of in situ conversion in a hydrocarbon containing formation 126 2002
7063145 Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations 213 2002
7066254 In situ thermal processing of a tar sands formation 250 2002
7066257 In situ recovery from lean and rich zones in a hydrocarbon containing formation 184 2002
7077198 In situ recovery from a hydrocarbon containing formation using barriers 242 2002
7077199 In situ thermal processing of an oil reservoir formation 227 2002
7086465 In situ production of a blending agent from a hydrocarbon containing formation 190 2002
7090013 In situ thermal processing of a hydrocarbon containing formation to produce heated fluids 227 2002
7100994 Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation 218 2002
7104319 In situ thermal processing of a heavy oil diatomite formation 216 2002
7114566 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor 228 2002
7128153 Treatment of a hydrocarbon containing formation after heating 189 2002
7156176 Installation and use of removable heaters in a hydrocarbon containing formation 184 2002
7165615 In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden 211 2002
2003/0196,789 In situ thermal processing of a hydrocarbon containing formation and upgrading of produced fluids prior to further treatment 269 2002
2003/0201,098 In situ recovery from a hydrocarbon containing formation using one or more simulations 263 2002
7055602 Method and composition for enhanced hydrocarbons recovery 113 2003
6923258 In situ thermal processsing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content 202 2003
6958704 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters 209 2003
7073578 Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation 240 2003
7121341 Conductor-in-conduit temperature limited heaters 187 2003
7219734 Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation 202 2003
2004/0140,096 Insulated conductor temperature limited heaters 192 2003
2004/0144,540 High voltage temperature limited heaters 172 2003
2004/0144,541 Forming wellbores using acoustic methods 125 2003
2004/0146,288 Temperature limited heaters for heating subsurface formations or wellbores 201 2003
2005/0006,097 Variable frequency temperature limited heaters 194 2003
7121342 Thermal processes for subsurface formations 279 2004
2005/0133,405 Systems and methods of producing a crude product 82 2004
2005/0133,414 Systems, methods, and catalysts for producing a crude product 94 2004
7320364 Inhibiting reflux in a heated well of an in situ conversion system 132 2005
7357180 Inhibiting effects of sloughing in wellbores 157 2005
7370704 Triaxial temperature limited heater 143 2005
7383877 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations 136 2005
7424915 Vacuum pumping of conductor-in-conduit heaters 141 2005
7431076 Temperature limited heaters using modulated DC power 143 2005
7481274 Temperature limited heaters with relatively constant current 130 2005
7490665 Variable frequency temperature limited heaters 137 2005
7510000 Reducing viscosity of oil for production from a hydrocarbon containing formation 143 2005
2005/0269,093 Variable frequency temperature limited heaters 115 2005
2005/0269,313 Temperature limited heaters with high power factors 172 2005
2006/0005,968 Temperature limited heaters with relatively constant current 104 2005
2006/0289,536 Subsurface electrical heaters using nitride insulation 171 2005
2006/0178,546 Method and apparatus for making a middle distillate product and lower olefins from a hydrocarbon feedstock 80 2006
2006/0191,820 Hydrocarbon cracking process for converting gas oil preferentially to middle distillate and lower olefins 79 2006
7225866 In situ thermal processing of an oil shale formation using a pattern of heat sources 202 2006
2006/0231,465 Systems, methods, and catalysts for producing a crude product 103 2006
7426959 Systems and methods for producing oil and/or gas 59 2006
7435037 Low temperature barriers with heat interceptor wells for in situ processes 153 2006
7500528 Low temperature barrier wellbores formed using water flushing 141 2006
7527094 Double barrier system for an in situ conversion process 157 2006
7575052 In situ conversion process utilizing a closed loop heating system 133 2006
7575053 Low temperature monitoring system for subsurface barriers 131 2006
2007/0045,266 In situ conversion process utilizing a closed loop heating system 144 2006
2007/0045,267 Subsurface connection methods for subsurface heaters 182 2006
2007/0045,268 Varying properties along lengths of temperature limited heaters 171 2006
2007/0108,200 Low temperature barrier wellbores formed using water flushing 146 2006
2007/0108,201 Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration 150 2006
2007/0119,098 Treatment of gas from an in situ conversion process 158 2006
2007/0133,959 Grouped exposed metal heaters 128 2006
2007/0133,960 In situ conversion process systems utilizing wellbores in at least two regions of a formation 150 2006
2007/0137,856 Double barrier system for an in situ conversion process 111 2006
2007/0137,857 Low temperature monitoring system for subsurface barriers 111 2006
2007/0144,732 Low temperature barriers for use with in situ processes 143 2006
2008/0217,321 Temperature limited heater utilizing non-ferromagnetic conductor 156 2006
2006/0289,340 METHODS FOR PRODUCING A TOTAL PRODUCT IN THE PRESENCE OF SULFUR 103 2006
2007/0000,810 METHOD FOR PRODUCING A CRUDE PRODUCT WITH REDUCED TAN 119 2006
7360588 Thermal processes for subsurface formations 135 2006
7549470 Solution mining and heating by oxidation for treating hydrocarbon containing formations 192 2006
7556095 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 182 2006
7556096 Varying heating in dawsonite zones in hydrocarbon containing formations 173 2006
7559367 Temperature limited heater with a conduit substantially electrically isolated from the formation 163 2006
7559368 Solution mining systems and methods for treating hydrocarbon containing formations 166 2006
7562706 Systems and methods for producing hydrocarbons from tar sands formations 162 2006
7581589 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 156 2006
7584789 Methods of cracking a crude product to produce additional crude products 162 2006
7591310 Methods of hydrotreating a liquid stream to remove clogging compounds 154 2006
7635025 Cogeneration systems and processes for treating hydrocarbon containing formations 141 2006
2007/0095,536 Cogeneration systems and processes for treating hydrocarbon containing formations 140 2006
2007/0095,537 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent 149 2006
2007/0125,533 Methods of hydrotreating a liquid stream to remove clogging compounds 97 2006
2007/0127,897 Subsurface heaters with low sulfidation rates 183 2006
2007/0131,415 Solution mining and heating by oxidation for treating hydrocarbon containing formations 143 2006
2007/0131,419 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid 93 2006
2007/0131,420 Methods of cracking a crude product to produce additional crude products 92 2006
2007/0131,428 Methods of filtering a liquid stream produced from an in situ heat treatment process 174 2006
2007/0221,377 Solution mining systems and methods for treating hydrocarbon containing formations 104 2006
2008/0017,370 Temperature limited heater with a conduit substantially electrically isolated from the formation 70 2006
2008/0107,577 Varying heating in dawsonite zones in hydrocarbon containing formations 60 2006
7461691 In situ recovery from a hydrocarbon containing formation 188 2007
7533719 Wellhead with non-ferromagnetic materials 166 2007
7604052 Compositions produced using an in situ heat treatment process 161 2007
7610962 Sour gas injection for use with in situ heat treatment 133 2007
7631689 Sulfur barrier for use with in situ processes for treating formations 146 2007
7635023 Time sequenced heating of multiple layers in a hydrocarbon containing formation 180 2007
7673786 Welding shield for coupling heaters 110 2007
7683296 Adjusting alloy compositions for selected properties in temperature limited heaters 109 2007
2007/0284,108 Compositions produced using an in situ heat treatment process 87 2007
2007/0289,733 Wellhead with non-ferromagnetic materials 75 2007
2008/0017,380 Non-ferromagnetic overburden casing 122 2007
2008/0035,346 Methods of producing transportation fuel 120 2007
2008/0035,347 Adjusting alloy compositions for selected properties in temperature limited heaters 112 2007
2008/0035,705 Welding shield for coupling heaters 113 2007
2008/0038,144 High strength alloys 115 2007
2008/0173,442 Sulfur barrier for use with in situ processes for treating formations 133 2007
2008/0173,444 Alternate energy source usage for in situ heat treatment processes 150 2007
2008/0173,449 Sour gas injection for use with in situ heat treatment 86 2007
2008/0174,115 Power systems utilizing the heat of produced formation fluid 148 2007
2009/0101,346 In situ recovery from a hydrocarbon containing formation 129 2007
7735935 In situ thermal processing of an oil shale formation containing carbonate minerals 117 2007
7540324 Heating hydrocarbon containing formations in a checkerboard pattern staged process 173 2007
7562707 Heating hydrocarbon containing formations in a line drive staged process 173 2007
7631690 Heating hydrocarbon containing formations in a spiral startup staged sequence 154 2007
7635024 Heating tar sands formations to visbreaking temperatures 144 2007
7644765 Heating tar sands formations while controlling pressure 111 2007
7673681 Treating tar sands formations with karsted zones 104 2007
7677310 Creating and maintaining a gas cap in tar sands formations 102 2007
7677314 Method of condensing vaporized water in situ to treat tar sands formations 98 2007
7681647 Method of producing drive fluid in situ in tar sands formations 122 2007
7703513 Wax barrier for use with in situ processes for treating formations 117 2007
7717171 Moving hydrocarbons through portions of tar sands formations with a fluid 107 2007
7730945 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 104 2007
7730946 Treating tar sands formations with dolomite 102 2007
7730947 Creating fluid injectivity in tar sands formations 107 2007
2008/0128,134 Producing drive fluid in situ in tar sands formations 137 2007
2008/0135,244 Heating hydrocarbon containing formations in a line drive staged process 125 2007
2008/0135,253 Treating tar sands formations with karsted zones 162 2007
2008/0135,254 In situ heat treatment process utilizing a closed loop heating system 137 2007
2008/0142,216 Treating tar sands formations with dolomite 147 2007
2008/0142,217 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process 141 2007
2008/0185,147 Wax barrier for use with in situ processes for treating formations 133 2007
2008/0217,003 Gas injection to inhibit migration during an in situ heat treatment process 144 2007
2008/0217,004 Heating hydrocarbon containing formations in a checkerboard pattern staged process 97 2007
2008/0217,015 Heating hydrocarbon containing formations in a spiral startup staged sequence 101 2007
2008/0217,016 Creating fluid injectivity in tar sands formations 155 2007
2008/0236,831 Condensing vaporized water in situ to treat tar sands formations 147 2007
2008/0277,113 Heating tar sands formations while controlling pressure 145 2007
2008/0283,246 Heating tar sands formations to visbreaking temperatures 91 2007
2009/0014,180 Moving hydrocarbons through portions of tar sands formations with a fluid 152 2007
2009/0014,181 Creating and maintaining a gas cap in tar sands formations 159 2007
7640980 Thermal processes for subsurface formations 109 2008
2009/0084,547 DOWNHOLE BURNER SYSTEMS AND METHODS FOR HEATING SUBSURFACE FORMATIONS 105 2008
2009/0090,158 WELLBORE MANUFACTURING PROCESSES FOR IN SITU HEAT TREATMENT PROCESSES 129 2008
2009/0095,476 MOLTEN SALT AS A HEAT TRANSFER FLUID FOR HEATING A SUBSURFACE FORMATION 102 2008
2009/0095,477 HEATING SYSTEMS FOR HEATING SUBSURFACE FORMATIONS 105 2008
2009/0095,478 VARYING PROPERTIES OF IN SITU HEAT TREATMENT OF A TAR SANDS FORMATION BASED ON ASSESSED VISCOSITIES 131 2008
2009/0095,479 PRODUCTION FROM MULTIPLE ZONES OF A TAR SANDS FORMATION 133 2008
2009/0126,929 TREATING NAHCOLITE CONTAINING FORMATIONS AND SALINE ZONES 129 2008
2009/0189,617 CONTINUOUS SUBSURFACE HEATER TEMPERATURE MEASUREMENT 136 2008
2009/0194,269 THREE-PHASE HEATERS WITH COMMON OVERBURDEN SECTIONS FOR HEATING SUBSURFACE FORMATIONS 120 2008
2009/0194,333 RANGING METHODS FOR DEVELOPING WELLBORES IN SUBSURFACE FORMATIONS 123 2008
2009/0200,023 HEATING SUBSURFACE FORMATIONS BY OXIDIZING FUEL ON A FUEL CARRIER 135 2008
2009/0200,854 SOLUTION MINING AND IN SITU TREATMENT OF NAHCOLITE BEDS 123 2008
2010/0089,584 DOUBLE INSULATED HEATERS FOR TREATING SUBSURFACE FORMATIONS 77 2009
2010/0089,586 MOVABLE HEATERS FOR TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS 69 2009
 
Chevron Research Company (8)
4303126 Arrangement of wells for producing subsurface viscous petroleum 202 1980
4273188 In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations 284 1980
4381641 Substoichiometric combustion of low heating value gases 319 1980
4366668 Substoichiometric combustion of low heating value gases 299 1981
4363361 Substoichiometric combustion of low heating value gases 291 1981
4551226 Heat exchanger antifoulant 84 1982
4460044 Advancing heated annulus steam drive 212 1982
4828031 In situ chemical stimulation of diatomite formations 231 1987
 
RAMEX SYN-FUELS INTERNATIONAL, INC. (1)
4928765 Method and apparatus for shale gas recovery 304 1988
 
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. (1)
4605680 Conversion of synthesis gas to diesel fuel and gasoline 288 1985
 
LOS ALAMOS NATIONAL SECURITY, LLC (2)
6910537 Canister, sealing method and composition for sealing a borehole 95 2003
2008/0006,410 Kerogen Extraction From Subterranean Oil Shale Resources 104 2007
 
CHEVRON U.S.A. INC. (1)
6269881 Oil recovery method for waxy crude oil using alkylaryl sulfonate surfactants derived from alpha-olefins and the alpha-olefin compositions 126 1999
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 2009/0194,287 INDUCTION HEATERS USED TO HEAT SUBSURFACE FORMATIONS 118 2008
8579014 Cooling arrangement for conveyors and other applications 1 2009
 
SCHLUMBERGER TECHNOLOGY CORPORATION (2)
* 8439106 Logging system and methodology 1 2010
* 2011/0042,075 LOGGING SYSTEM AND METHODOLOGY 0 2010
 
SHELL OIL COMPANY (88)
8224165 Temperature limited heater utilizing non-ferromagnetic conductor 49 2006
8381806 Joint used for coupling long heaters 22 2007
8083813 Methods of producing transportation fuel 53 2007
9181780 Controlling and assessing pressure conditions during treatment of tar sands formations 0 2008
8791396 Floating insulated conductors for heating subsurface formations 4 2008
8662175 Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities 21 2008
8459359 Treating nahcolite containing formations and saline zones 34 2008
8381815 Production from multiple zones of a tar sands formation 44 2008
8327681 Wellbore manufacturing processes for in situ heat treatment processes 23 2008
8536497 Methods for forming long subsurface heaters 17 2008
8276661 Heating subsurface formations by oxidizing fuel on a fuel carrier 46 2008
8272455 Methods for forming wellbores in heated formations 17 2008
8240774 Solution mining and in situ treatment of nahcolite beds 44 2008
8196658 Irregular spacing of heat sources for treating hydrocarbon containing formations 58 2008
8162059 Induction heaters used to heat subsurface formations 59 2008
8146661 Cryogenic treatment of gas 59 2008
8146669 Multi-step heater deployment in a subsurface formation 53 2008
8113272 Three-phase heaters with common overburden sections for heating subsurface formations 37 2008
8627887 In situ recovery from a hydrocarbon containing formation 22 2008
8752904 Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations 0 2009
8177305 Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations 59 2009
8172335 Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations 50 2009
8162405 Using tunnels for treating subsurface hydrocarbon containing formations 50 2009
8151907 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations 55 2009
8450540 Compositions produced using an in situ heat treatment process 34 2009
9129728 Systems and methods of forming subsurface wellbores 0 2009
9051829 Perforated electrical conductors for treating subsurface formations 0 2009
9022118 Double insulated heaters for treating subsurface formations 0 2009
8881806 Systems and methods for treating a subsurface formation with electrical conductors 4 2009
8353347 Deployment of insulated conductors for treating subsurface formations 23 2009
8281861 Circulated heated transfer fluid heating of subsurface hydrocarbon formations 46 2009
8267170 Offset barrier wells in subsurface formations 36 2009
8267185 Circulated heated transfer fluid systems used to treat a subsurface formation 43 2009
8261832 Heating subsurface formations with fluids 52 2009
8256512 Movable heaters for treating subsurface hydrocarbon containing formations 32 2009
8220539 Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation 65 2009
* 2010/0101,794 HEATING SUBSURFACE FORMATIONS WITH FLUIDS 67 2009
8636323 Mines and tunnels for use in treating subsurface hydrocarbon containing formations 19 2009
8562078 Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations 19 2009
8851170 Heater assisted fluid treatment of a subsurface formation 1 2010
8448707 Non-conducting heater casings 0 2010
8434555 Irregular pattern treatment of a subsurface formation 32 2010
8327932 Recovering energy from a subsurface formation 39 2010
8608249 In situ thermal processing of an oil shale formation 7 2010
8192682 High strength alloys 43 2010
8225866 In situ recovery from a hydrocarbon containing formation 46 2010
8233782 Grouped exposed metal heaters 36 2010
9466896 Parallelogram coupling joint for coupling insulated conductors 0 2010
8816203 Compacted coupling joint for coupling insulated conductors 2 2010
8356935 Methods for assessing a temperature in a subsurface formation 25 2010
8257112 Press-fit coupling joint for joining insulated conductors 29 2010
8151880 Methods of making transportation fuel 54 2010
9127523 Barrier methods for use in subsurface hydrocarbon formations 1 2011
9127538 Methodologies for treatment of hydrocarbon formations using staged pyrolyzation 0 2011
9033042 Forming bitumen barriers in subsurface hydrocarbon formations 0 2011
8967259 Helical winding of insulated conductor heaters for installation 0 2011
8939207 Insulated conductor heaters with semiconductor layers 2 2011
8833453 Electrodes for electrical current flow heating of subsurface formations with tapered copper thickness 0 2011
8820406 Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore 0 2011
8739874 Methods for heating with slots in hydrocarbon formations 0 2011
8701768 Methods for treating hydrocarbon formations 8 2011
8701769 Methods for treating hydrocarbon formations based on geology 8 2011
8631866 Leak detection in circulated fluid systems for heating subsurface formations 18 2011
8502120 Insulating blocks and methods for installation in insulated conductor heaters 16 2011
8485256 Variable thickness insulated conductors 16 2011
8230927 Methods and systems for producing fluid from an in situ conversion process 36 2011
8579031 Thermal processes for subsurface formations 0 2011
8943686 Compaction of electrical insulation for joining insulated conductors 5 2011
8857051 System and method for coupling lead-in conductor to insulated conductor 1 2011
8732946 Mechanical compaction of insulator for insulated conductor splices 2 2011
8586866 Hydroformed splice for insulated conductors 2 2011
8586867 End termination for three-phase insulated conductors 1 2011
9048653 Systems for joining insulated conductors 0 2012
9016370 Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment 0 2012
8555971 Treating tar sands formations with dolomite 18 2012
8485252 In situ recovery from a hydrocarbon containing formation 35 2012
8485847 Press-fit coupling joint for joining insulated conductors 22 2012
9309755 Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations 0 2012
9226341 Forming insulated conductors using a final reduction step after heat treating 0 2012
9080409 Integral splice for insulated conductors 0 2012
9080917 System and methods for using dielectric properties of an insulated conductor in a subsurface formation to assess properties of the insulated conductor 0 2012
8857506 Alternate energy source usage methods for in situ heat treatment processes 0 2013
8789586 In situ recovery from a hydrocarbon containing formation 1 2013
8859942 Insulating blocks and methods for installation in insulated conductor heaters 0 2013
9337550 End termination for three-phase insulated conductors 0 2013
9022109 Leak detection in circulated fluid systems for heating subsurface formations 1 2014
9528322 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations 0 2014
9399905 Leak detection in circulated fluid systems for heating subsurface formations 0 2015
 
HARRIS CORPORATION (1)
9194221 Apparatus for heating hydrocarbons with RF antenna assembly having segmented dipole elements and related methods 2 2013
 
ECON Maschinenbau und Steuerungstechnik GmbH (2)
8037618 Device for draining and drying solids, in particular plastics granulated under water 1 2007
* 2008/0072,447 Device for draining and drying solids, in particular plastics granulated under water 4 2007
 
COMPANY, SHELL OIL (1)
8191630 Creating fluid injectivity in tar sands formations 58 2010
* Cited By Examiner

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