| 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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| 07/03/2008 | WO2008045408B1 Method for producing viscous hydrocarbon using steam and carbon dioxide |
| 07/03/2008 | US20080156500 Packer |
| 06/26/2008 | US20080149343 High power umbilicals for electric flowline immersion heating of produced hydrocarbons |
| 06/25/2008 | CN201078218Y Explosion-proof heater of far-infrared well head |
| 06/19/2008 | WO2008073765A2 Method for reducing the emission of green house gases into the atmosphere |
| 06/18/2008 | EP1933004A1 Method of controlling hardening of a compound in a wellbore |
| 06/17/2008 | CA2553071C Method for intensification of high-viscosity oil production and apparatus for its implementation |
| 06/17/2008 | CA2482931C Method for improving drilling depth measurements |
| 06/17/2008 | CA2482922C Method and apparatus for determining drill string movement mode |
| 06/13/2008 | CA2571100A1 Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device |
| 06/12/2008 | US20080135254 In situ heat treatment process utilizing a closed loop heating system |
| 06/12/2008 | US20080135253 Treating tar sands formations with karsted zones |
| 06/12/2008 | US20080135244 Heating hydrocarbon containing formations in a line drive staged process |
| 06/12/2008 | US20080135227 Heated separation vessel for well fluids |
| 06/10/2008 | US7383877 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 06/05/2008 | US20080128134 Producing drive fluid in situ in tar sands formations |
| 06/04/2008 | CN201068783Y Thermal washing wax-clearing anti-pollution apparatus |
| 06/04/2008 | CN201068782Y Single well automatic heating device |
| 06/03/2008 | US7380605 Energy transfer loop apparatus and method of installation |
| 05/29/2008 | WO2008064074A1 Insulating fluid and methods for preparing and insulating concentric piping |
| 05/29/2008 | WO2008063239A1 Method for extraction of hydrocarbons from limestone formations |
| 05/29/2008 | WO2008035194A3 A method and an apparatus for cold start of a subsea production system |
| 05/29/2008 | CA2669400A1 Insulating fluid and methods for preparing and insulating concentric piping |
| 05/22/2008 | CA2650089A1 Temperature limited heaters using phase transformation of ferromagnetic material |
| 05/21/2008 | EP1733119B1 Method for intensification of high-viscosity oil production and apparatus for its implementation |
| 05/14/2008 | CN201059178Y Sectional combined type deep-well heating furnace |
| 05/13/2008 | US7370704 Triaxial temperature limited heater |
| 05/07/2008 | CN201057023Y Electrical heating well washing vehicle |
| 05/06/2008 | US7367398 Device for heating and thermally insulating at least one undersea pipeline |
| 05/02/2008 | WO2008051087A1 Sub sea processing system |
| 05/02/2008 | CA2666959A1 Moving hydrocarbons through portions of tar sands formations with a fluid |
| 05/02/2008 | CA2666956A1 Heating tar sands formations to visbreaking temperatures |
| 05/02/2008 | CA2666947A1 Heating tar sands formations while controlling pressure |
| 05/02/2008 | CA2665869A1 In situ heat treatment process utilizing a closed loop heating system |
| 05/02/2008 | CA2662942A1 Sub sea processing system |
| 05/02/2008 | CA2649802A1 Systems and processes for use in treating subsurface formations |
| 04/29/2008 | US7363979 Down hole oil and gas well heating system and method for down hole heating of oil and gas wells |
| 04/29/2008 | US7363971 Method and apparatus for maintaining a multi-chip module at a temperature above downhole temperature |
| 04/24/2008 | WO2008048817A2 Engine/steam generator with afterburner |
| 04/24/2008 | WO2007147054A3 In-situ radiofrequency heating of fractured bedrock for removal or conversion of liquids gases and solids |
| 04/24/2008 | CA2664321A1 Combined development of oil shale by in situ heating with a deeper hydrocarbon resource |
| 04/24/2008 | CA2664316A1 Improved method of developing subsurface freeze zone |
| 04/24/2008 | CA2663824A1 Optimized well spacing for in situ shale oil development |
| 04/24/2008 | CA2663650A1 Improved method of developing a subsurface freeze zone using formation fractures |
| 04/23/2008 | CN201050342Y Atmospheric highly efficient energy-saving coal stove heat conductive oil oven |
| 04/23/2008 | CN101165312A Oil well long-lasting wax-preventing method |
| 04/22/2008 | US7360588 Thermal processes for subsurface formations |
| 04/22/2008 | CA2504002C Heating apparatus for wells |
| 04/17/2008 | WO2008045946A1 Producing resources using steam injection |
| 04/17/2008 | WO2008045408A1 Method for producing viscous hydrocarbon using steam and carbon dioxide |
| 04/17/2008 | US20080087434 Engine/steam generator with afterburner |
| 04/17/2008 | US20080087421 Method of developing subsurface freeze zone |
| 04/17/2008 | CA2644612A1 System, method and apparatus for hydrogen-oxygen burner in downhole steam generator |
| 04/16/2008 | EP1738058B1 Inhibiting effects of sloughing in wellbores |
| 04/16/2008 | EP1738054B1 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 04/16/2008 | EP1738052B1 Inhibiting reflux in a heated well of an in situ conversion system |
| 04/16/2008 | CN101163859A In situ conversion process system using at least two areas with inceptor well positioned in surface |
| 04/16/2008 | CN101163858A In situ conversion process utilizing a closed loop heating system |
| 04/16/2008 | CN101163857A Varying properties along lengths of temperature limited heaters |
| 04/16/2008 | CN101163856A Grouped exposing metal heater |
| 04/16/2008 | CN101163855A Subsurface connection methods for subsurface heaters |
| 04/16/2008 | CN101163854A Temperature limited heater using non-ferromagnetic conductor |
| 04/16/2008 | CN101163853A Insulation conductor temperature-limiting heater for underground strata heating combined with three-phase y structure |
| 04/16/2008 | CN101163852A Low temperature barriers for in situ processes |
| 04/16/2008 | CN101163851A Double barrier system for an in situ conversion process |
| 04/16/2008 | CN101161984A Trace heating for oil well viscosity,coagulation reduction and dewaxing |
| 04/15/2008 | US7357180 Inhibiting effects of sloughing in wellbores |
| 04/15/2008 | CA2469890C Wet electric heating process |
| 04/10/2008 | WO2008042945A2 Wellbore casing and method of forming same |
| 04/10/2008 | US20080083537 System, method and apparatus for hydrogen-oxygen burner in downhole steam generator |
| 04/08/2008 | US7353872 Start-up of temperature limited heaters using direct current (DC) |
| 04/03/2008 | WO2007147050A3 Combined electromagnetic thermal system for natural gas and oil recovery and environmental applications |
| 04/03/2008 | US20080078551 Liquid Metal Heat Exchanger for Efficient Heating of Soils and Geologic Formations |
| 04/02/2008 | CN201043454Y Water sleeve heating furnace for normal pressure well mouth in oil field |
| 03/27/2008 | WO2008036520A1 Formation fluid sampling tools and methods utilizing chemical heating |
| 03/27/2008 | WO2008035194A2 A method and an apparatus for cold start of a subsea production system |
| 03/27/2008 | WO2007137088A3 Field application of polymer-based electrical insulation |
| 03/26/2008 | CN201041026Y Movable steam injection boiler high pressure discharge system safety reclamation device |
| 03/25/2008 | US7347267 Method and apparatus for cooling flasked instrument assemblies |
| 03/25/2008 | CA2537930C Production of natural gas from hydrates |
| 03/20/2008 | WO2008032067A1 Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup |
| 03/20/2008 | US20080066904 Formation Fluid Sampling Tools and Methods Utilizing Chemical Heating |
| 03/20/2008 | CA2628645A1 Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup |
| 03/12/2008 | CN201034026Y Water source heat pump heating apparatus for oil field well mouth |
| 03/12/2008 | CN101142372A Down hole physical upgrading of heavy crude oils by selective energy absorption |
| 03/06/2008 | US20080053655 Downhole steam generator |
| 03/05/2008 | CN201031664Y Heaters special for atmospheric oilfield |
| 03/04/2008 | US7337843 Solar blackbody waveguide for solar assisted oil recovery applications |
| 02/28/2008 | WO2007117316A3 Improved down hole oil and gas well heating system and method for down hole heating of oil and gas wells |
| 02/28/2008 | US20080047711 Down hole oil and gas well heating system and method for down hole heating of oil and gas wells |
| 02/28/2008 | US20080047708 Method and apparatus for plugging perforations |
| 02/21/2008 | US20080041593 Wellbore formation evaluation system and method |
| 02/20/2008 | CN201024996Y Slave tube thermal washing bender for dense oil horizontal well |
| 02/20/2008 | CN201024994Y Electrically unfreezing and blockage release device |
| 02/20/2008 | CN201024993Y High-heat efficiency and high power heating device |
| 02/20/2008 | CN201024954Y Temperature preservation device for three-direction oil exploration well mouth |
| 02/14/2008 | US20080038144 Chromium, nickel, copper; niobium, iron manganese, nitrogen; nanonitrides; system for heating a subterranean formation; |
| 02/14/2008 | US20080035345 Method and apparatus for stimulating production from oil and gas wells by freeze-thaw cycling |
| 02/13/2008 | EP1885992A1 Composition and method for dissipating heat underground |
| 02/13/2008 | CN201021615Y Coated internal heating device |