| 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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| 12/27/2002 | WO2002103152A1 Hydrothermal drilling method and system |
| 12/25/2002 | CN1387603A Method for processing production layer in bottom hole area, packer therefor and method for securing packer inside bottom of hole |
| 12/24/2002 | US6497290 Method and apparatus using coiled-in-coiled tubing |
| 12/24/2002 | US6497279 Method of using a heater with a fiber optic string in a wellbore |
| 12/19/2002 | US20020191969 In situ thermal processing of a coal formation in reducing environment |
| 12/19/2002 | US20020191968 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas |
| 12/17/2002 | US6494259 Downhole flame spray welding tool system and method |
| 12/17/2002 | US6494251 Thermodynamic cycle using hydrostatic head for compression |
| 12/12/2002 | WO2002099247A1 In-situ casting of well equipment |
| 12/11/2002 | EP1264077A1 Subterranean well completion apparatus with flow assurance system and associated methods |
| 12/08/2002 | CA2349908A1 Method and apparatus for preventing flow lines from freezing |
| 12/04/2002 | CN1383468A Packer and method for fixation thereof in well |
| 11/27/2002 | CN2522616Y Oil well pumping unit |
| 11/26/2002 | US6485232 Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system |
| 11/26/2002 | CA2174980C Selective excitation of heating electrodes for oil wells |
| 11/21/2002 | US20020170708 In situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio |
| 11/20/2002 | EP1027524B1 Method and apparatus for viscosity reduction of clogging hydrocarbons in oil well |
| 11/19/2002 | CA2084113C Single horizontal well conduction assisted steam drive process for removing viscous hydrocarbonaceous fluids |
| 11/13/2002 | CN2520410Y Geothermal crude oil production aid device |
| 10/31/2002 | WO2002086284A1 Electrical well heating system and method |
| 10/31/2002 | WO2002086283A1 In-situ combustion for oil recovery |
| 10/31/2002 | WO2002086276A2 Method for in situ recovery from a tar sands formation and a blending agent produced by such a method |
| 10/31/2002 | WO2002085821A2 In situ recovery from a relatively permeable formation containing heavy hydrocarbons |
| 10/31/2002 | US20020158064 Sealing method and apparatus for oil and gas wells |
| 10/31/2002 | US20020157832 Method and apparatus for reducing paraffin and asphaltene deposits in pumping oil wells |
| 10/31/2002 | US20020157831 Method and packer for processing a productive formation in bottom-hole zone of a well, and method for fixing a packer inside a well |
| 10/24/2002 | US20020153140 Device for eliminating gas or paraffin hydrate deposits that form in well drilling equipment or in hydrocarbon production or transportation equipment |
| 10/23/2002 | EP1251241A1 Downhole casing repair |
| 10/17/2002 | WO2001061262A9 Heat exchange systems |
| 10/09/2002 | CN2515422Y Vacuum superconducting heater |
| 10/03/2002 | US20020139533 Method for decreasing heat transfer from production tubing |
| 10/03/2002 | US20020139528 Downhole flame spray welding tool system and method |
| 10/02/2002 | CN1372067A Method for thermal producing ultrathick oil by cyclic steam stimulation and special apparatus thereof |
| 09/30/2002 | CA2378743A1 Downhole flame spray welding tool system and method |
| 09/19/2002 | US20020132862 In situ heating; process control |
| 09/18/2002 | CN2511791Y Device for producing thick oil by water adding to reduce viscosity |
| 09/17/2002 | CA2038648C Process for conserving steam quality in deep steam injection wells |
| 09/10/2002 | US6446726 Wellbore and formation heating system and method |
| 09/06/2002 | WO2002035061A3 Method and pumping out means for improving the supply of water to a source or a water procurement well |
| 08/29/2002 | US20020117303 Production of synthesis gas from a hydrocarbon containing formation |
| 08/21/2002 | EP1233143A1 Coiled tubing |
| 08/15/2002 | US20020108753 In situ thermal processing of a coal formation to form a substantially uniform, relatively high permeable formation |
| 08/14/2002 | CN1363756A Circulating and hot removing technology and equipment for thick oil well |
| 08/08/2002 | US20020104654 In situ thermal processing of a coal formation to convert a selected total organic carbon content into hydrocarbon products |
| 08/08/2002 | US20020104651 Systems for heat exchange with earth loops |
| 08/08/2002 | US20020104328 Downhole sorption cooling and heating in wireline logging and monitoring while drilling |
| 08/01/2002 | US20020100587 Enhanced oil well production system |
| 07/25/2002 | US20020096320 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate |
| 07/17/2002 | CN2500798Y Electric heating device for heat conducting oil surface |
| 07/16/2002 | US6419018 Controlling temperature; heating |
| 07/10/2002 | CN1087385C Apparatus for viscosity reduction of clogging hydrocarbons in oil well |
| 07/09/2002 | US6415868 Method and apparatus for preventing the formation of alkane hydrates in subsea equipment |
| 07/09/2002 | US6415866 Thermal operating module with scavenger system |
| 07/04/2002 | WO2001081240A3 In-situ heating of coal formation to produce fluid |
| 07/04/2002 | US20020084074 In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation |
| 06/27/2002 | WO2002016733B1 Hydrate formation prevention in subsea equipment with phase change material |
| 06/27/2002 | WO2002016732B1 Self-regulating heat source for subsea equipment |
| 06/20/2002 | US20020077515 Allowing heat to transfer from one or more heat sources to selected section of formation; controlling heat from heat sources such that average temperature within at section of formation is less than about 375 degree, producing mixture |
| 06/20/2002 | US20020076212 In situ thermal processing of a hydrocarbon containing formation producing a mixture with oxygenated hydrocarbons |
| 06/20/2002 | US20020074117 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells |
| 06/11/2002 | CA2036165C Method and well system for producing hydrocarbons |
| 06/06/2002 | US20020066565 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources |
| 06/04/2002 | US6397956 Directional drilling tool |
| 05/30/2002 | US20020062961 In situ thermal processing of a hydrocarbon containing formation and ammonia production |
| 05/30/2002 | US20020062959 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio |
| 05/29/2002 | CN1351220A Underground heating method and equipment for oil well |
| 05/23/2002 | WO2001092687A3 Expandable elements |
| 05/23/2002 | WO2001081239A3 In situ recovery from a hydrocarbon containing formation |
| 05/23/2002 | US20020062052 Providing heat to the formation; controlling the heat from the heat source such that an average temperature within at least a majority of the selected section of the formation is less than about 375 degrees C. |
| 05/23/2002 | US20020062051 Providing heat to the formation; controlling the heat from the heat source such that an average temperature within at least a majority of the selected section of the formation is less than about 375 degrees C. |
| 05/23/2002 | US20020060071 Wellbore and formation heating system and method |
| 05/16/2002 | US20020057905 In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids |
| 05/16/2002 | US20020056553 Expandable elements |
| 05/16/2002 | US20020056552 In situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids |
| 05/16/2002 | US20020056551 In situ thermal processing of a hydrocarbon containing formation in a reducing environment |
| 05/15/2002 | CN2491599Y 'Electric heater for well |
| 05/09/2002 | US20020053436 In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material |
| 05/09/2002 | US20020053435 In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rate |
| 05/09/2002 | US20020053432 In situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources |
| 05/09/2002 | US20020053431 In situ thermal processing of a hydrocarbon containing formation to produce a selected ratio of components in a gas |
| 05/09/2002 | US20020053429 In situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control |
| 05/08/2002 | EP1203185A1 System and method for heat insulation of a conduit with vegetable foam |
| 05/08/2002 | CN2490314Y Electric heater for petroleum |
| 05/07/2002 | US6384389 Eutectic metal sealing method and apparatus for oil and gas wells |
| 05/02/2002 | WO2002035061A2 Method and pumping out means for improving the supply of water to a source or a water procurement well |
| 05/02/2002 | US20020052297 Mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. |
| 05/02/2002 | US20020050357 In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content |
| 05/02/2002 | US20020050356 In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratio |
| 05/02/2002 | US20020050353 In situ thermal processing of a coal formation using repeating triangular patterns of heat sources |
| 05/02/2002 | US20020050352 In situ thermal processing of a hydrocarbon containing formation to control product composition |
| 04/30/2002 | US6378611 Procedure and device for treating well perforations |
| 04/25/2002 | WO2001081715A3 Method and system for treating a hydrocarbon containing formation |
| 04/25/2002 | US20020049360 In situ thermal processing of a hydrocarbon containing formation to produce a mixture including ammonia |
| 04/25/2002 | US20020049358 Heat sources heat a portion of the coal formation to temperatures that allow pyrolysis of the hydrocarbons; controlling temperature and pressure to yield improved products from the formation |
| 04/25/2002 | US20020046883 In situ thermal processing of a coal formation using pressure and/or temperature control |
| 04/25/2002 | US20020046839 In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas |
| 04/25/2002 | US20020046838 One or more heat sources used to heat a portion of the hydrocarbon containing formation to temperature that allow pyrolysis of hydrocarbons to yield a mixture of relatively high quality hydrocarbon product such as synthesis gas et. |
| 04/25/2002 | US20020046837 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content |
| 04/25/2002 | US20020046832 In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products |
| 04/24/2002 | CN2487865Y Screw pump electric heating mated device for producing thickened oil |