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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04/18/2002 | US20020045553 In situ thermal processing of a hycrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation |
04/18/2002 | US20020043405 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range |
04/18/2002 | US20020043367 In situ thermal processing of a hydrocarbon containing formation to increase a permeability of the formation |
04/18/2002 | US20020043366 In situ thermal processing of a coal formation and ammonia production |
04/18/2002 | US20020043365 In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells |
04/17/2002 | EP0792408A4 Downhole system for extending the life span of electronic components |
04/11/2002 | US20020040781 In situ thermal processing of a hydrocarbon containing formation using substantially parallel wellbores |
04/11/2002 | US20020040780 In situ thermal processing of a hydrocarbon containing formation to produce a selected mixture |
04/11/2002 | US20020040779 In situ thermal processing of a hydrocarbon containing formation to produce a mixture containing olefins, oxygenated hydrocarbons, and/or aromatic hydrocarbons |
04/11/2002 | US20020040778 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content |
04/04/2002 | WO2002002905B1 Packer and method for fixation thereof in a well |
04/04/2002 | WO2001086115A3 A method for treating a hydrocarbon containing formation |
04/04/2002 | US20020040177 In situ thermal processing of a hydrocarbon containig formation, in situ production of synthesis gas, and carbon dioxide sequestration |
04/04/2002 | US20020040173 Providing heat from one or more heat sources to at least one portion of formation; allowing heat to transfer from the one or more heat sources to a selected section of the formation; controlling the heat; producing a mixture from the formation |
04/04/2002 | US20020039486 In situ thermal processing of a coal formation using heat sources positioned within open wellbores |
04/04/2002 | US20020038712 In situ production of synthesis gas from a coal formation through a heat source wellbore |
04/04/2002 | US20020038711 Pyrolysis |
04/04/2002 | US20020038710 In situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content |
04/04/2002 | US20020038709 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor |
04/04/2002 | US20020038708 In situ thermal processing of a coal formation to produce a condensate |
04/04/2002 | US20020038706 In situ thermal processing of a coal formation with a selected vitrinite reflectance |
04/04/2002 | US20020038705 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content |
04/02/2002 | US6365268 Deep sea insulation material |
03/28/2002 | WO2001081716A3 A method for sequestering a fluid within a hydrocarbon containing formation |
03/28/2002 | US20020038069 In situ thermal processing of a coal formation to produce a mixture of olefins, oxygenated hydrocarbons, and aromatic hydrocarbons |
03/28/2002 | US20020036103 In situ thermal processing of a coal formation by controlling a pressure of the formation |
03/28/2002 | US20020036089 In situ thermal processing of a hydrocarbon containing formation using distributed combustor heat sources |
03/28/2002 | US20020036084 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation |
03/28/2002 | US20020036083 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer |
03/26/2002 | US6360819 Electrical heater |
03/26/2002 | CA2227399C Wellhead equipment that use polymer sealing elements to seal off well pressure |
03/21/2002 | WO2001081717A3 Method for treating a hydrocarbon-containing formation |
03/21/2002 | US20020035307 Pyrolysis |
03/21/2002 | US20020034380 In situ thermal processing of a coal formation with a selected moisture content |
03/21/2002 | US20020033280 In situ thermal processing of a coal formation with carbon dioxide sequestration |
03/21/2002 | US20020033257 In situ thermal processing of hydrocarbons within a relatively impermeable formation |
03/21/2002 | US20020033256 Process control; heating |
03/21/2002 | US20020033255 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment |
03/21/2002 | US20020033254 In situ thermal processing of a coal formation to control product composition |
03/21/2002 | US20020033253 In situ thermal processing of a hydrocarbon containing formation using insulated conductor heat sources |
03/20/2002 | CN1081287C Method for producing oil from thick oil well and its device |
03/14/2002 | US20020029885 In situ thermal processing of a coal formation using a movable heating element |
03/14/2002 | US20020029884 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas |
03/14/2002 | US20020029882 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas |
03/14/2002 | US20020029881 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources |
03/13/2002 | CN2481845Y Thermal insulating arrangement for christmas tree |
03/07/2002 | US20020027001 In situ thermal processing of a coal formation to produce a selected gas mixture |
03/06/2002 | CN1338560A Pumping unit of oil well |
03/05/2002 | US6353706 Optimum oil-well casing heating |
02/28/2002 | WO2002016733A1 Hydrate formation prevention in subsea equipment with phase change material |
02/28/2002 | WO2002016732A1 Self-regulating heat source for subsea equipment |
02/28/2002 | US20020023751 Live well heater cable |
02/27/2002 | CN1079885C Flameless combustor and its ignition method |
02/27/2002 | CN1079884C Flameless combustor and method for heating underground rock stratum |
02/21/2002 | WO2000073624A9 Thermal insulation vessel |
02/14/2002 | US20020018697 Heater element for use in an in situ thermal desorption soil remediation system |
02/05/2002 | US6343652 Method and device for cleaning out a well or piping blocked with gas hydrates |
01/30/2002 | CN2474716Y Under well oil pumping pipe with heating device |
01/29/2002 | US6341498 Downhole sorption cooling of electronics in wireline logging and monitoring while drilling |
01/24/2002 | US20020007644 Thermodynamic cycle using hydrostatic head for compression |
01/23/2002 | CN1332836A Pulsed combustion device and method using the same |
01/17/2002 | WO2001074473B1 Method and apparatus for processing fluids produced from an offshore wellbore |
01/15/2002 | US6338381 Heat exchange systems |
01/10/2002 | WO2002002905A1 Packer and method for fixation thereof in a well |
01/10/2002 | CA2383978A1 Packer and method for fixation thereof in a well |
01/09/2002 | CN2470532Y Metal electrothermal-fil heater |
01/09/2002 | CN2470531Y Self-energy oil-heating well-washing wax-removing and viscosity-reducing machine for oil well |
01/08/2002 | US6336408 Cooling system for downhole tools |
01/02/2002 | CN2469176Y Self-turning-back and secondary heating type well washing equipment |
12/20/2001 | WO2001083940A8 Electrical well heating system and method |
12/19/2001 | CN2466861Y Special electric cable for heating oil well |
12/13/2001 | WO2001094741A1 Annulus sealing method using eutectic metal and heat induction |
12/11/2001 | US6328110 Process for destroying a rigid thermal insulator positioned in a confined space |
12/11/2001 | US6328104 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking |
12/06/2001 | WO2001092687A2 Expandable elements |
12/04/2001 | US6325278 Concentric, insulated tubular conduits and method of assembly |
11/29/2001 | WO2001090531A1 Method for plugging a well with a resin |
11/22/2001 | WO2001088057A1 Method for making a quasi-incompressible phase-change material with low thermal conductivity, and resulting product |
11/22/2001 | WO2001078914A8 Heater element for use in an situ thermal desorption soil remediation system |
11/20/2001 | US6318467 System and method for pumping and heating viscous fluids in a wellbore |
11/15/2001 | WO2001086115A2 A method for treating a hydrocarbon containing formation |
11/08/2001 | WO2001083945A1 A method for treating a hydrocarbon containing formation |
11/08/2001 | WO2001083940A1 Electrical well heating system and method |
11/07/2001 | CN2458423Y Electromagnetic output increasing device for use in well |
11/01/2001 | WO2001081722A1 A method for treating a hydrocarbon-containing formation |
11/01/2001 | WO2001081721A1 A method for treating a hydrocarbon containing formation |
11/01/2001 | WO2001081720A1 In situ recovery of hydrocarbons from a kerogen-containing formation |
11/01/2001 | WO2001081717A2 Method for treating a hydrocarbon-containing formation |
11/01/2001 | WO2001081716A2 A method for sequestering a fluid within a hydrocarbon containing formation |
11/01/2001 | WO2001081715A2 Method and system for treating a hydrocarbon containing formation |
11/01/2001 | WO2001081713A1 Electrical well heating system and method |
11/01/2001 | WO2001081240A2 In-situ heating of coal formation to produce fluid |
11/01/2001 | WO2001081239A2 In situ recovery from a hydrocarbon containing formation |
11/01/2001 | CA2670076A1 Method and system for treating a hydrocarbon containing formation |
11/01/2001 | CA2407404A1 A method for treating a hydrocarbon-containing formation |
11/01/2001 | CA2407215A1 Method and system for treating a hydrocarbon containing formation |
11/01/2001 | CA2407026A1 In situ recovery from a hydrocarbon containing formation |
11/01/2001 | CA2406729A1 Electrical well heating system and method |
10/28/2001 | CA2332228A1 Downhole induction heating tool for enhanced oil recovery |
10/25/2001 | WO2001079743A1 Thermal insulation material for subsea equipment |