| Patents for E21B 36 - Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones (4,262) |
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| 10/13/2009 | US7603261 Method for predicting acid placement in carbonate reservoirs |
| 10/08/2009 | US20090250204 Apparatus and method for in-situ electromagnetic extraction and production of hydrocarbons from geological formations |
| 10/07/2009 | CN101553640A Adjusting alloy compositions for selected properties in temperature limited heaters |
| 10/06/2009 | US7597138 Ground water heat transfer systems and deployment thereof |
| 10/01/2009 | US20090242204 method of controlling water condensation in a near wellbore region of a formation |
| 10/01/2009 | US20090242196 System and method for extraction of hydrocarbons by in-situ radio frequency heating of carbon bearing geological formations |
| 09/30/2009 | CN100545415C Method for in situ treatment of hydrocarbon-containing formation |
| 09/29/2009 | CA2445449C In-situ combustion for oil recovery |
| 09/29/2009 | CA2405612C Heater element for use in an situ thermal desorption soil remediation system |
| 09/24/2009 | US20090236092 Method and system for extraction of hydrocarbons from oil sands |
| 09/17/2009 | US20090229823 Methods and apparatus for attaching accessories to sand screen assemblies |
| 09/17/2009 | US20090229818 System and Method For Management of Steam Flooding For Oil Wells |
| 09/17/2009 | CA2716450A1 Aqueous-based insulating fluids and related methods |
| 09/16/2009 | EP2100004A2 High strength alloys |
| 09/16/2009 | CN100540843C In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor |
| 09/09/2009 | CN201306153Y Crude oil heating heat exchanger |
| 09/09/2009 | CN101525990A Process for assisting thick oil exploitation and device thereof |
| 09/02/2009 | EP2095493A1 Lens driving apparatus |
| 09/02/2009 | CN201301690Y Novel crude oil heating device |
| 09/01/2009 | US7582269 Has downgoing and upgoing flow passages connected at bottom to form U-tube and in heat exchange relation to each other; flow passages each have upper heat exchange section and lower reaction section; air injection system injects air into downgoing flow passage;for effecting wet oxidation of sludge |
| 09/01/2009 | US7581593 Apparatus for treating fluid streams |
| 08/27/2009 | US20090211811 Method and system for installing geothermal transfer apparatuses with a sonic drill and a removable or retrievable drill bit |
| 08/27/2009 | US20090211756 Formation tester with low flowline volume |
| 08/20/2009 | US20090205833 Thermal activation mechanisms for use in oilfield applications |
| 08/19/2009 | EP1738056B1 Temperature limited heaters used to heat subsurface formations |
| 08/19/2009 | CN201292831Y Screw pump oil production electric heater unit |
| 08/19/2009 | CN201292830Y Gusher and electric pump well sucker rod electric heater unit |
| 08/19/2009 | CN201292777Y Hollow polished rod bending proof and leakage proof means |
| 08/18/2009 | US7575053 Low temperature monitoring system for subsurface barriers |
| 08/18/2009 | US7575052 In situ conversion process utilizing a closed loop heating system |
| 08/13/2009 | US20090200854 Solution mining and in situ treatment of nahcolite beds |
| 08/13/2009 | US20090200032 System, method and apparatus for creating an electrical glow discharge |
| 08/13/2009 | US20090200031 Irregular spacing of heat sources for treating hydrocarbon containing formations |
| 08/13/2009 | US20090200025 High temperature methods for forming oxidizer fuel |
| 08/13/2009 | US20090200023 Heating subsurface formations by oxidizing fuel on a fuel carrier |
| 08/12/2009 | EP2087201A1 Sub sea processing system |
| 08/12/2009 | CN201288533Y Combusting device control appliance in oil field thermal wax cleaning equipment |
| 08/12/2009 | CN201288532Y Moving type electric heating steam cleaning defrosting apparatus |
| 08/12/2009 | CN201288531Y Electromagnetic heater for oil and gas field well top |
| 08/12/2009 | CN201288530Y Program controlled intermediate frequency power supply apparatus |
| 08/12/2009 | CN201288529Y Horizontal radiation section for oilfield steam filling boiler |
| 08/12/2009 | CN100526600C Well casing protecting equipment for deep coal underground gasification production well |
| 08/11/2009 | US7571770 Downhole cooling based on thermo-tunneling of electrons |
| 08/06/2009 | WO2009097189A1 Well thermal insulation for formation sampling of viscous fluids |
| 08/06/2009 | WO2009076772A8 Heat tracing apparaturs including a thermoelectric generator |
| 08/06/2009 | US20090194329 Methods for forming wellbores in heated formations |
| 08/06/2009 | US20090194287 Induction heaters used to heat subsurface formations |
| 08/06/2009 | US20090194286 Multi-step heater deployment in a subsurface formation |
| 08/06/2009 | US20090194269 Three-phase heaters with common overburden sections for heating subsurface formations |
| 08/04/2009 | US7568526 Subterranean electro-thermal heating system and method |
| 07/30/2009 | WO2009094410A2 Formation tester with low flowline volume |
| 07/30/2009 | CA2713396A1 Formation tester with fluid mobility enhancement to enable use of a low volume flow line for fluid sample collection and method of use thereof |
| 07/29/2009 | CN201280912Y Vacuum superconducting heater for natural gas |
| 07/28/2009 | CA2341937E Electro-thermal dynamic stripping process |
| 07/23/2009 | US20090183879 Positive displacement pump |
| 07/23/2009 | US20090183868 Annealing of materials downhole |
| 07/22/2009 | EP1871983B1 Subsurface connection methods for subsurface heaters |
| 07/21/2009 | US7562706 Systems and methods for producing hydrocarbons from tar sands formations |
| 07/21/2009 | CA2513066C Annular fluids and methods of emplacing the same |
| 07/21/2009 | CA2410414C Enhanced oil recovery by in situ gasification |
| 07/16/2009 | US20090178809 Methods and Apparatus for Well Construction |
| 07/16/2009 | US20090178805 Production of natural gas from hydrates |
| 07/15/2009 | CN100513740C Method in situ recovery from a hydrocarbon containing formation using barriers |
| 07/14/2009 | US7559367 Temperature limited heater with a conduit substantially electrically isolated from the formation |
| 07/09/2009 | US20090173491 Method and system for extraction of hydrocarbons from oil shale and limestone formations |
| 07/08/2009 | EP1871985B1 In situ conversion process utilizing a closed loop heating system |
| 07/02/2009 | US20090166032 Inline Downhole Heater and Methods of Use |
| 07/01/2009 | EP2074281A2 Heating tar sands formations while controlling pressure |
| 07/01/2009 | EP2074279A2 Moving hydrocarbons through portions of tar sands formations with a fluid |
| 06/25/2009 | WO2009076772A1 Heat tracing apparaturs including a thermoelectric generator |
| 06/25/2009 | US20090159288 Chemically enhanced thermal recovery of heavy oil |
| 06/25/2009 | US20090159278 Single Packer System for Use in Heavy Oil Environments |
| 06/24/2009 | CN201262068Y Novel oil extraction well head thermal-insulating box |
| 06/24/2009 | CN201262067Y Petroleum crude oil heating device for composite well circulating ground source heat pump |
| 06/24/2009 | CN201262066Y Petroleum crude oil heating device for individual well circulating ground source heat pump |
| 06/18/2009 | WO2009076006A1 Optimization of untreated oil shale geometry to control subsidence |
| 06/18/2009 | US20090151937 Well thermal insulation for formation sampling of viscous fluids |
| 06/18/2009 | CA2703623A1 Optimization of untreated oil shale geometry to control subsidence |
| 06/18/2009 | CA2646820A1 Heat tracing apparatus with heat-driven pumping system |
| 06/17/2009 | CN201258723Y Fixed form steam-filling boiler with 30t/h evaporation |
| 06/17/2009 | CN201258722Y Vehicle-mounted steam-filling boiler with 18t/h evaporation |
| 06/16/2009 | US7546873 Low temperature barriers for use with in situ processes |
| 06/11/2009 | WO2003040513A3 In situ thermal processing of a hydrocarbon containing formation |
| 06/10/2009 | CN101454536A Temperature limited heaters using phase transformation of ferromagnetic material |
| 06/09/2009 | US7543643 Down hole oil and gas well heating system and method for down hole heating of oil and gas wells |
| 06/04/2009 | US20090139722 Capillary actuator device |
| 06/04/2009 | US20090139716 Method of recovering bitumen from a tunnel or shaft with heating elements and recovery wells |
| 06/03/2009 | EP2064412A2 A method and an apparatus for cold start of a subsea production system |
| 06/03/2009 | CN201250649Y Crude oil processor |
| 06/02/2009 | US7540165 Downhole sorption cooling and heating in wireline logging and monitoring while drilling |
| 05/28/2009 | US20090133878 Controlling the Pressure Within an Annular Volume of a Wellbore |
| 05/28/2009 | US20090133871 Drilling, perforating and formation analysis |
| 05/27/2009 | EP2061949A1 Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup |
| 05/27/2009 | CN201246153Y Combustion heater for thick oil heat extraction |
| 05/27/2009 | CN201246138Y Spontaneous combustion coal type oil well heating furnace |
| 05/27/2009 | CN101440703A Method and apparatus for pipeline exploding early warning and operation control of oil extraction steam-filling boiler |
| 05/21/2009 | US20090126934 Kerogen Extraction from Subterranean Oil Shale Resources |
| 05/21/2009 | US20090126929 Treating nahcolite containing formations and saline zones |
| 05/21/2009 | US20090126923 Closed loop energy production from geothermal reservoirs |
| 05/20/2009 | CN201241663Y High dryness oil field steam-filling boiler |