Patents
Patents for E21B 36 - Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones (4,262)
04/2002
04/18/2002US20020045553 In situ thermal processing of a hycrocarbon containing formation using heat transfer from a heat transfer fluid to heat the formation
04/18/2002US20020043405 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range
04/18/2002US20020043367 In situ thermal processing of a hydrocarbon containing formation to increase a permeability of the formation
04/18/2002US20020043366 In situ thermal processing of a coal formation and ammonia production
04/18/2002US20020043365 In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells
04/17/2002EP0792408A4 Downhole system for extending the life span of electronic components
04/11/2002US20020040781 In situ thermal processing of a hydrocarbon containing formation using substantially parallel wellbores
04/11/2002US20020040780 In situ thermal processing of a hydrocarbon containing formation to produce a selected mixture
04/11/2002US20020040779 In situ thermal processing of a hydrocarbon containing formation to produce a mixture containing olefins, oxygenated hydrocarbons, and/or aromatic hydrocarbons
04/11/2002US20020040778 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content
04/04/2002WO2002002905B1 Packer and method for fixation thereof in a well
04/04/2002WO2001086115A3 A method for treating a hydrocarbon containing formation
04/04/2002US20020040177 In situ thermal processing of a hydrocarbon containig formation, in situ production of synthesis gas, and carbon dioxide sequestration
04/04/2002US20020040173 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
04/04/2002US20020039486 In situ thermal processing of a coal formation using heat sources positioned within open wellbores
04/04/2002US20020038712 In situ production of synthesis gas from a coal formation through a heat source wellbore
04/04/2002US20020038711 Pyrolysis
04/04/2002US20020038710 In situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content
04/04/2002US20020038709 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
04/04/2002US20020038708 In situ thermal processing of a coal formation to produce a condensate
04/04/2002US20020038706 In situ thermal processing of a coal formation with a selected vitrinite reflectance
04/04/2002US20020038705 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
04/02/2002US6365268 Deep sea insulation material
03/2002
03/28/2002WO2001081716A3 A method for sequestering a fluid within a hydrocarbon containing formation
03/28/2002US20020038069 In situ thermal processing of a coal formation to produce a mixture of olefins, oxygenated hydrocarbons, and aromatic hydrocarbons
03/28/2002US20020036103 In situ thermal processing of a coal formation by controlling a pressure of the formation
03/28/2002US20020036089 In situ thermal processing of a hydrocarbon containing formation using distributed combustor heat sources
03/28/2002US20020036084 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation
03/28/2002US20020036083 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer
03/26/2002US6360819 Electrical heater
03/26/2002CA2227399C Wellhead equipment that use polymer sealing elements to seal off well pressure
03/21/2002WO2001081717A3 Method for treating a hydrocarbon-containing formation
03/21/2002US20020035307 Pyrolysis
03/21/2002US20020034380 In situ thermal processing of a coal formation with a selected moisture content
03/21/2002US20020033280 In situ thermal processing of a coal formation with carbon dioxide sequestration
03/21/2002US20020033257 In situ thermal processing of hydrocarbons within a relatively impermeable formation
03/21/2002US20020033256 Process control; heating
03/21/2002US20020033255 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment
03/21/2002US20020033254 In situ thermal processing of a coal formation to control product composition
03/21/2002US20020033253 In situ thermal processing of a hydrocarbon containing formation using insulated conductor heat sources
03/20/2002CN1081287C Method for producing oil from thick oil well and its device
03/14/2002US20020029885 In situ thermal processing of a coal formation using a movable heating element
03/14/2002US20020029884 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas
03/14/2002US20020029882 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas
03/14/2002US20020029881 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources
03/13/2002CN2481845Y Thermal insulating arrangement for christmas tree
03/07/2002US20020027001 In situ thermal processing of a coal formation to produce a selected gas mixture
03/06/2002CN1338560A Pumping unit of oil well
03/05/2002US6353706 Optimum oil-well casing heating
02/2002
02/28/2002WO2002016733A1 Hydrate formation prevention in subsea equipment with phase change material
02/28/2002WO2002016732A1 Self-regulating heat source for subsea equipment
02/28/2002US20020023751 Live well heater cable
02/27/2002CN1079885C Flameless combustor and its ignition method
02/27/2002CN1079884C Flameless combustor and method for heating underground rock stratum
02/21/2002WO2000073624A9 Thermal insulation vessel
02/14/2002US20020018697 Heater element for use in an in situ thermal desorption soil remediation system
02/05/2002US6343652 Method and device for cleaning out a well or piping blocked with gas hydrates
01/2002
01/30/2002CN2474716Y Under well oil pumping pipe with heating device
01/29/2002US6341498 Downhole sorption cooling of electronics in wireline logging and monitoring while drilling
01/24/2002US20020007644 Thermodynamic cycle using hydrostatic head for compression
01/23/2002CN1332836A Pulsed combustion device and method using the same
01/17/2002WO2001074473B1 Method and apparatus for processing fluids produced from an offshore wellbore
01/15/2002US6338381 Heat exchange systems
01/10/2002WO2002002905A1 Packer and method for fixation thereof in a well
01/10/2002CA2383978A1 Packer and method for fixation thereof in a well
01/09/2002CN2470532Y Metal electrothermal-fil heater
01/09/2002CN2470531Y Self-energy oil-heating well-washing wax-removing and viscosity-reducing machine for oil well
01/08/2002US6336408 Cooling system for downhole tools
01/02/2002CN2469176Y Self-turning-back and secondary heating type well washing equipment
12/2001
12/20/2001WO2001083940A8 Electrical well heating system and method
12/19/2001CN2466861Y Special electric cable for heating oil well
12/13/2001WO2001094741A1 Annulus sealing method using eutectic metal and heat induction
12/11/2001US6328110 Process for destroying a rigid thermal insulator positioned in a confined space
12/11/2001US6328104 Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking
12/06/2001WO2001092687A2 Expandable elements
12/04/2001US6325278 Concentric, insulated tubular conduits and method of assembly
11/2001
11/29/2001WO2001090531A1 Method for plugging a well with a resin
11/22/2001WO2001088057A1 Method for making a quasi-incompressible phase-change material with low thermal conductivity, and resulting product
11/22/2001WO2001078914A8 Heater element for use in an situ thermal desorption soil remediation system
11/20/2001US6318467 System and method for pumping and heating viscous fluids in a wellbore
11/15/2001WO2001086115A2 A method for treating a hydrocarbon containing formation
11/08/2001WO2001083945A1 A method for treating a hydrocarbon containing formation
11/08/2001WO2001083940A1 Electrical well heating system and method
11/07/2001CN2458423Y Electromagnetic output increasing device for use in well
11/01/2001WO2001081722A1 A method for treating a hydrocarbon-containing formation
11/01/2001WO2001081721A1 A method for treating a hydrocarbon containing formation
11/01/2001WO2001081720A1 In situ recovery of hydrocarbons from a kerogen-containing formation
11/01/2001WO2001081717A2 Method for treating a hydrocarbon-containing formation
11/01/2001WO2001081716A2 A method for sequestering a fluid within a hydrocarbon containing formation
11/01/2001WO2001081715A2 Method and system for treating a hydrocarbon containing formation
11/01/2001WO2001081713A1 Electrical well heating system and method
11/01/2001WO2001081240A2 In-situ heating of coal formation to produce fluid
11/01/2001WO2001081239A2 In situ recovery from a hydrocarbon containing formation
11/01/2001CA2670076A1 Method and system for treating a hydrocarbon containing formation
11/01/2001CA2407404A1 A method for treating a hydrocarbon-containing formation
11/01/2001CA2407215A1 Method and system for treating a hydrocarbon containing formation
11/01/2001CA2407026A1 In situ recovery from a hydrocarbon containing formation
11/01/2001CA2406729A1 Electrical well heating system and method
10/2001
10/28/2001CA2332228A1 Downhole induction heating tool for enhanced oil recovery
10/25/2001WO2001079743A1 Thermal insulation material for subsea equipment
1 ... 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 ... 43