| 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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| 01/12/2006 | US20060005969 General method for disposal of produced water |
| 01/12/2006 | US20060005968 Temperature limited heaters with relatively constant current |
| 01/11/2006 | EP1502005A4 Method and apparatus for determining drill string movement mode |
| 01/11/2006 | EP1502004A4 System and method for interpreting drilling data |
| 01/11/2006 | EP1502003A4 Method for improving drilling depth measurements |
| 01/11/2006 | EP1276959B1 Method and system for treating a hydrocarbon containing formation |
| 01/11/2006 | CN2751134Y Thermal recovery casing head |
| 01/05/2006 | WO2006002325A2 Method of developingand producing deep geothermal reservoirs |
| 01/05/2006 | WO2006000663A1 Method for injecting acid compounds into an underground reservoir |
| 01/05/2006 | WO2005086736A3 Providing a local response to a local condition in an oil well |
| 01/04/2006 | CN1717529A Temperature limited heaters for heating subsurface formations or wellbores |
| 01/04/2006 | CN1715612A Inner oil tube with heater of underwell oil pumping pipe |
| 01/03/2006 | US6981548 heating and pyrolysis of heavy hydrocarbon sections in subterranean wells to produce light hydrocarbons; reduced viscosity improves movement; fluid removal in liquid and/or vapor phase |
| 12/29/2005 | US20050284636 Resistive down hole heating tool |
| 12/28/2005 | EP1381753B1 Electrical well heating system and method |
| 12/28/2005 | EP1381752B1 In-situ combustion for oil recovery |
| 12/27/2005 | US6978837 Production of natural gas from hydrates |
| 12/27/2005 | US6978825 Device and process for the heat insulation of at least one underwater pipe at great depth |
| 12/21/2005 | EP1606490A1 Device for heating and thermally insulating at least one undersea pipeline |
| 12/21/2005 | EP1276958B1 Electrical well heating system and method |
| 12/21/2005 | EP1276957B1 Electrical well heating system and method |
| 12/21/2005 | CN1232718C Well heater and method for heating stratum |
| 12/15/2005 | US20050274521 Cement heating tool for oil and gas well completion |
| 12/14/2005 | EP1327053B1 Method and pumping out means for improving the supply of water to a source or a water procurement well |
| 12/14/2005 | EP1276965B1 A method for treating a hydrocarbon containing formation |
| 12/13/2005 | US6973967 hydrocarbons within a coal formation are converted in situ within the formation to yield a mixture of relatively high quality hydrocarbon products, hydrogen, and other products; the coal is heated to to temperatures that allow pyrolysis |
| 12/08/2005 | US20050269313 Temperature limited heaters with high power factors |
| 12/08/2005 | US20050269095 Inhibiting reflux in a heated well of an in situ conversion system |
| 12/08/2005 | US20050269094 Triaxial temperature limited heater |
| 12/08/2005 | US20050269093 Variable frequency temperature limited heaters |
| 12/08/2005 | US20050269092 Vacuum pumping of conductor-in-conduit heaters |
| 12/08/2005 | US20050269091 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 12/08/2005 | US20050269090 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 12/08/2005 | US20050269089 Temperature limited heaters using modulated DC power |
| 12/08/2005 | US20050269088 Inhibiting effects of sloughing in wellbores |
| 12/08/2005 | US20050269077 Start-up of temperature limited heaters using direct current (DC) |
| 11/30/2005 | CN2743534Y Electric heating unit for high power high pressure oil well |
| 11/29/2005 | US6969123 Upgrading and mining of coal |
| 11/23/2005 | EP1598486A2 Riser pipe for a deep well |
| 11/23/2005 | EP1598485A2 Device for the evacuation of a riser pipe |
| 11/22/2005 | US6966374 In situ thermal recovery from a relatively permeable formation using gas to increase mobility |
| 11/22/2005 | US6966372 In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids |
| 11/22/2005 | CA2390728C Technique for facilitating the pumping of fluids by lowering fluid viscosity |
| 11/22/2005 | CA2311388C Tool cooling system |
| 11/16/2005 | CN1227076C Heater element,system for heating soil and method of hot treating soil |
| 11/15/2005 | US6964300 In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore |
| 11/10/2005 | WO2005106196A1 Temperature limited heaters used to heat subsurface formations |
| 11/10/2005 | WO2005106195A1 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 11/10/2005 | WO2005106194A1 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 11/10/2005 | WO2005106193A1 Temperature limited heaters used to heat subsurface formations |
| 11/10/2005 | WO2005106191A1 Inhibiting reflux in a heated well of an in situ conversion system |
| 11/10/2005 | CA2564515A1 Temperature limited heaters used to heat subsurface formations |
| 11/10/2005 | CA2563592A1 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 11/10/2005 | CA2563585A1 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 11/10/2005 | CA2563583A1 Temperature limited heaters used to heat subsurface formations |
| 11/03/2005 | WO2005103445A1 Subsurface electrical heaters using nitride insulation |
| 11/03/2005 | WO2005103444A1 Inhibiting effects of sloughing in wellbores |
| 11/03/2005 | WO2005048664B1 High temperature circuits |
| 11/03/2005 | WO2005031221A3 Hydraulic friction fluid heater and method of using same |
| 11/03/2005 | CA2579496A1 Subsurface electrical heaters using nitride insulation |
| 11/01/2005 | US6959761 In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells |
| 10/26/2005 | EP1588020A1 Apparatus for the cooling of drilling liquids |
| 10/26/2005 | CN2736527Y Thermal paraffin removal unit |
| 10/25/2005 | CA2463808C Flameless hot oiler |
| 10/20/2005 | US20050232703 Flowline insulation system |
| 10/18/2005 | US6955221 Active heating of thermally insulated flowlines |
| 10/13/2005 | WO2005072289A3 Improved down hole oil and gas well heating system and method for down hole heating of oil and gas wells |
| 10/13/2005 | US20050224223 Heating apparatus for wells |
| 10/11/2005 | US6953087 Thermal processing of a hydrocarbon containing formation to increase a permeability of the formation |
| 10/06/2005 | WO2005091883A2 Extracting and processing hydrocarbon-bearing formations |
| 10/06/2005 | WO2005048664A3 High temperature circuits |
| 10/06/2005 | US20050220645 Submersible Pumping System and Method for Boosting Subsea Production Flow |
| 10/06/2005 | CA2838472A1 Extracting and processing hydrocarbon-bearing formations |
| 10/06/2005 | CA2558424A1 Extracting and processing hydrocarbon-bearing formations |
| 10/05/2005 | CN2731084Y Heat-pipe type energy-saving heating-furnace device for oil well |
| 09/29/2005 | WO2005090746A1 Method for intensification of high-viscosity oil production and apparatus for its implementation |
| 09/29/2005 | US20050211436 Methods of heating energy storage devices that power downhole tools |
| 09/27/2005 | US6948563 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content |
| 09/27/2005 | US6948562 Production of a blending agent using an in situ thermal process in a relatively permeable formation |
| 09/22/2005 | WO2005086736A2 Providing a local response to a local condition in an oil well |
| 09/22/2005 | US20050205260 Wellbore rig with heat transfer loop apparatus |
| 09/22/2005 | US20050205254 Method for intensification of high-viscosity oil production and apparatus for its implementation |
| 09/22/2005 | CA2789735A1 Providing a local response to a local condition in an oil well |
| 09/22/2005 | CA2789217A1 Drilling method |
| 09/22/2005 | CA2789215A1 Drilling with a muscular drill string |
| 09/22/2005 | CA2789181A1 System for controlling oil well drill dynamics |
| 09/21/2005 | CN1671944A Installation and use of removable heaters in a hydrocarbon containing formation |
| 09/15/2005 | US20050199386 In situ processing of hydrocarbon-bearing formations with variable frequency automated capacitive radio frequency dielectric heating |
| 09/14/2005 | CN1667242A Swabbing technology for viscous oil and high condensation oil |
| 09/13/2005 | US6942032 Resistive down hole heating tool |
| 09/13/2005 | CA2249432C Method and apparatus using coiled-in-coiled tubing |
| 09/08/2005 | US20050194183 Providing a local response to a local condition in an oil well |
| 09/07/2005 | CN1666006A Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations |
| 08/23/2005 | US6932155 In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
| 08/18/2005 | WO2005075790A1 Down hole fluid heating apparatus and method |
| 08/18/2005 | WO2005038347A3 Apparatus for igniting combustible mediums |
| 08/17/2005 | EP1395732B1 In-situ casting of well equipment |
| 08/11/2005 | WO2005072289A2 Improved down hole oil and gas well heating system and method for down hole heating of oil and gas wells |
| 08/11/2005 | US20050173120 Down hole oil and gas well heating system and method for down hole heating of oil and gas wells |
| 08/11/2005 | US20050173119 Down hole drilling fluid heating apparatus and method |