| Patents for E21B 36 - Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones (4,262) |
|---|
| 02/12/1985 | CA1182392A1 Unplugging brine-submerged perforations in a well |
| 02/05/1985 | CA1182104A1 Method and apparatus for forming and using a bore hole |
| 01/29/1985 | US4496001 Vacuum system for reducing heat loss |
| 01/22/1985 | US4494749 Seal assemblies |
| 01/22/1985 | CA1181339A1 Ignition system |
| 01/16/1985 | EP0131499A1 Method for the oxidation of hydrocarbonaceous subterranean sedimentary formations |
| 01/15/1985 | CA1181000A1 Insulating tubular conduit apparatus and method |
| 01/02/1985 | CA1180270A Permanent thermal packer |
| 12/27/1984 | CA1179939A Concentric tubing having bonded insulation with the annulus |
| 12/27/1984 | CA1179938A Dome-type packoff wellhead |
| 12/27/1984 | CA1179937A Concentric steaming string downhole apparatus |
| 12/25/1984 | US4489784 Well control method using low-melting alloy metals |
| 12/04/1984 | US4485868 Method for recovery of viscous hydrocarbons by electromagnetic heating in situ |
| 11/06/1984 | US4481109 Solar heat treating of well fluids |
| 11/06/1984 | US4480371 Method of making insulated tubular conduit |
| 10/30/1984 | US4479680 Method and apparatus for electrohydraulic fracturing of rock and the like |
| 10/30/1984 | US4479540 Gasification of coal |
| 10/30/1984 | US4479383 Well logging apparatus |
| 10/23/1984 | US4478280 Steam drive oil recovery method utilizing a downhole steam generator |
| 10/23/1984 | CA1176558A1 Heavy oil recovery from deep formations |
| 10/16/1984 | US4477106 Concentric insulated tubing string |
| 10/16/1984 | US4476932 Method of cold water fracturing in drainholes |
| 10/16/1984 | US4476926 Method and apparatus for mitigation of radio frequency electric field peaking in controlled heat processing of hydrocarbonaceous formations in situ |
| 10/09/1984 | US4475883 Pressure control for steam generator |
| 10/09/1984 | US4475596 Enhanced oil recovery, gas generator |
| 10/02/1984 | US4474238 Method and apparatus for treatment of subsurface formations |
| 10/02/1984 | US4474237 Oil recovery |
| 10/02/1984 | US4474011 Once-through steam generator |
| 10/02/1984 | CA1175348A1 Method and electrical device for promoting oil recovery |
| 09/28/1984 | EP0061494A4 Thermal enhancement. |
| 09/25/1984 | US4473114 In situ method for yielding a gas from a subsurface formation of hydrocarbon material |
| 09/18/1984 | US4471839 Steam drive oil recovery method utilizing a downhole steam generator |
| 09/11/1984 | US4470459 Apparatus and method for controlled temperature heating of volumes of hydrocarbonaceous materials in earth formations |
| 09/11/1984 | US4470188 Method of mechanically prestressing a tubular apparatus |
| 08/21/1984 | US4466484 Electrical device for promoting oil recovery |
| 08/14/1984 | CA1172703A1 Apparatus and method for radio frequency heating of hydrocarbonaceous earth formations including an impedance matching technique |
| 08/07/1984 | US4463805 Exothermic production of hot gas to pressurize and thin oil |
| 08/07/1984 | US4463803 Downhole vapor generator and method of operation |
| 08/02/1984 | WO1984003021A1 Apparatus and method for heating, thawing and/or demoisturizing materials and/or objects |
| 07/17/1984 | US4459731 Concentric insulated tubing string |
| 07/17/1984 | CA1170979A1 In situ combustion for oil recovery |
| 07/10/1984 | US4459101 Burner systems |
| 07/10/1984 | US4458756 Heavy oil recovery from deep formations |
| 07/10/1984 | US4458633 Flameless nitrogen skid unit |
| 07/03/1984 | US4457365 In situ radio frequency selective heating system |
| 07/03/1984 | CA1170176A1 Downhole steam injector |
| 07/03/1984 | CA1170175A1 Method and apparatus for producing a high pressure thermal vapor stream |
| 07/03/1984 | CA1170174A1 Downhole steam generator with improved preheating, combustion and protection features |
| 07/03/1984 | CA1170173A1 Downhole steam generator using low pressure fuel and air supply |
| 07/03/1984 | CA1170172A1 Downhole steam generator having a downhole oxidant compressor |
| 07/03/1984 | CA1170171A1 Burner systems |
| 07/03/1984 | CA1170170A1 Thermal enhancement |
| 06/26/1984 | US4456069 Process and apparatus for treating hydrocarbon-bearing well formations |
| 06/26/1984 | US4456068 Process and apparatus for thermal enhancement |
| 06/26/1984 | US4455875 Pressure measurement sonde |
| 06/26/1984 | CA1169765A1 Concentric insulated tubing string |
| 06/19/1984 | US4454918 Thermally stimulating mechanically-lifted well production |
| 06/13/1984 | EP0110764A1 Material containing sodium silicates, especially for use in the thermal insulation of heavy oil producing wells |
| 06/12/1984 | US4453597 Stimulation of hydrocarbon flow from a geological formation |
| 06/12/1984 | US4453570 Concentric tubing having bonded insulation within the annulus |
| 06/05/1984 | US4452309 Method and means for uniformly distributing both phases of steam on the walls of a well |
| 05/23/1984 | EP0109288A2 Heating oil in wells and generating steam from well water |
| 05/22/1984 | US4449585 Apparatus and method for in situ controlled heat processing of hydrocarbonaceous formations |
| 05/22/1984 | CA1167759A1 Well treating process for chemically heating and modifying a subterranean reservoir |
| 05/09/1984 | EP0108044A2 Cooling water flow regulating apparatus for coal gasification wells |
| 05/08/1984 | US4446917 Method and apparatus for producing viscous or waxy crude oils |
| 05/01/1984 | US4445570 High pressure combustor having a catalytic air preheater |
| 04/24/1984 | US4444420 For forming a tubular string in a subterranean well |
| 04/24/1984 | US4444263 Permanent thermal packer method |
| 04/17/1984 | US4442898 Downhole vapor generator |
| 04/12/1984 | WO1984001405A1 Recovery of viscous hydrocarbons by electromagnetic heating in situ |
| 04/10/1984 | CA1165361A1 Electrode unit for electrically heating underground hydrocarbon deposits |
| 04/10/1984 | CA1165360A1 Electrode device for electrically heating underground deposits of hydrocarbons |
| 04/04/1984 | EP0104790A1 Apparatus for the delivery of hot fluids and methods of maintaining a vacuum in such apparatus |
| 04/04/1984 | EP0104789A1 Methods of prestressing tubular apparatus |
| 04/04/1984 | EP0104788A2 Methods of and apparatus for detecting exposure of components to selected temperatures |
| 04/03/1984 | US4440219 Thermally isolated well instruments |
| 04/03/1984 | CA1164793A1 Direct firing downhole steam generator |
| 03/27/1984 | US4438729 Method of heating a first fluid |
| 03/21/1984 | EP0103439A1 Methods of prestressing and methods of manufacturing tubular apparatus |
| 03/20/1984 | US4437518 Apparatus and method for improving the productivity of an oil well |
| 03/13/1984 | CA1163551A1 Production of heavy oil from tar sands |
| 03/06/1984 | CA1163214A1 Insulated pipe joint and method for producing same |
| 02/28/1984 | US4433724 In an oil well |
| 02/14/1984 | US4431069 Method and apparatus for forming and using a bore hole |
| 02/08/1984 | EP0100230A2 Earth Boring Apparatus |
| 01/24/1984 | CA1161027A1 Gas hydrates drilling procedure |
| 01/17/1984 | US4425967 Ignition procedure and process for in situ retorting of oil shale |
| 01/10/1984 | CA1160151A1 Downhole steam generator with improved preheating/cooling features |
| 01/10/1984 | CA1160066A1 Hull heating system for an arctic offshore production structure |
| 01/04/1984 | EP0097433A2 Apparatus for protecting electrical components in high-temperature boreholes |
| 01/03/1984 | US4423778 Concentric tubing separation joint |
| 12/27/1983 | US4422513 Gas hydrates drilling procedure |
| 12/20/1983 | US4421169 Protective sheath for high temperature process wells |
| 12/20/1983 | US4421163 Downhole steam generator and turbopump |
| 12/20/1983 | US4421062 Well gas powered well effluent heat treating system |
| 12/13/1983 | CA1158446A1 Flameless nitrogen skid unit |
| 12/06/1983 | CA1158227A1 Method and apparatus for recovering unstable cores |
| 11/15/1983 | US4415184 High temperature insulated casing |
| 11/15/1983 | US4415034 Electrode well completion |