| 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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| 08/04/2011 | WO2011091626A1 Forced cooling circulation system for drilling mud |
| 08/04/2011 | US20110188944 Arctic Platform |
| 08/03/2011 | CN201915905U 电加热器 Electric heaters |
| 08/03/2011 | CN201915904U 变频电磁油管电热高效清蜡洗井装置 Frequency Electromagnetic tubing efficient electric wax flushing device |
| 08/02/2011 | US7988384 Arctic platform |
| 07/27/2011 | CN201908624U Combined wellhead heating thermal insulation device |
| 07/21/2011 | WO2011050083A3 Steam distribution apparatus and method for enhanced oil recovery of viscous oil |
| 07/21/2011 | US20110174016 Apparatus & process for treating offshore natural gas |
| 07/21/2011 | CA2786572A1 Steam generator |
| 07/20/2011 | CN102128016A Method for improving resin sand curing strength by using stratum thermogenesis technology |
| 07/19/2011 | US7980304 Method and system for extraction of hydrocarbons from oil shale |
| 07/14/2011 | US20110168443 Bitless Drilling System |
| 07/07/2011 | US20110162847 Methods and systems for downhole active cooling |
| 07/06/2011 | EP2340350A2 Downhole device actuator and method |
| 06/30/2011 | WO2011078868A1 Downhole well tool and cooler therefor |
| 06/29/2011 | CN201885236U Oil-gas dual-purpose combustion system |
| 06/23/2011 | WO2011075268A1 Enhanced convection for in situ pyrolysis of organic-rich rock formations |
| 06/23/2011 | US20110146968 Installation for the in Situ Extraction of a Substance Containing Carbon |
| 06/23/2011 | US20110146967 Downhole well tool and cooler therefor |
| 06/22/2011 | EP2334902A1 Gas evolving oil viscosity diminishing compositions for stimulating the productive layer of an oil reservoir |
| 06/22/2011 | CN201874529U Control system for well-mouth fuel-gas heating furnace |
| 06/22/2011 | CN201874528U Automatic ignition and fire extinguishment protection device for gas heating furnace |
| 06/21/2011 | US7963333 Controlling the pressure within an annular volume of a wellbore |
| 06/21/2011 | US7963328 Process and apparatus for release and recovery of methane from methane hydrates |
| 06/14/2011 | CA2503394C Temperature limited heaters for heating subsurface formations or wellbores |
| 06/09/2011 | US20110132602 Systems and methods for producing oil and/or gas |
| 06/08/2011 | CN1671944B Installation and use of removable heaters in a hydrocarbon containing formation |
| 06/08/2011 | CN102089340A A polyisocyanurate-based syntactic coating for offshore applications |
| 06/02/2011 | US20110127036 Method and apparatus for a downhole gas generator |
| 06/01/2011 | CN201851084U Defroster for mineshaft |
| 06/01/2011 | CN201851060U Device for constant pressure, gas release and heat preservation of oil well casing |
| 06/01/2011 | CN1828012B System and method of downhole thermal property measurement |
| 06/01/2011 | CN102080524A Layered electric ignition method for multilayer gas injection of fire flood |
| 06/01/2011 | CN102080522A Oil extraction method for oil deposit of shallow-layer super heavy oil |
| 06/01/2011 | CN101235711B Hollow sucker rod electric heater unit |
| 05/31/2011 | US7950460 Controlling the pressure within an annular volume of a wellbore |
| 05/31/2011 | US7950459 Using a biphasic solution as a recyclable coiled tubing cleanout fluid |
| 05/31/2011 | US7950458 Drilling, completing and stimulating a hydrocarbon production well |
| 05/31/2011 | US7950453 Downhole burner systems and methods for heating subsurface formations |
| 05/26/2011 | WO2011062793A1 Apparatus, system, and methods for generating a non-plugging hydrate slurry |
| 05/25/2011 | CN201843586U High-efficiency energy-saving electromagnetic paraffin cleaner |
| 05/25/2011 | CN201843585U IF electromagnetic heating device for removing wax |
| 05/17/2011 | US7942203 Thermal processes for subsurface formations |
| 05/17/2011 | US7942197 Methods and systems for producing fluid from an in situ conversion process |
| 05/12/2011 | WO2011056171A1 Open loop cooling system and method for downhole tools |
| 05/12/2011 | WO2011019791A3 Thermal vapor stream apparatus and method |
| 05/11/2011 | CN201826825U Energy-saving water jacket furnace |
| 05/11/2011 | CN101408097B Stationary type steam injecting boiler with evaporation of 30 ton / hour |
| 05/10/2011 | US7938175 Drilling, perforating and formation analysis |
| 05/05/2011 | WO2010037137A3 Downhole device actuator and method |
| 05/04/2011 | EP2315909A2 System and method for sub-cooling hydrocarbon production fluid for transport |
| 05/04/2011 | CN102046916A Methods of treating a hydrocarbon containing formation |
| 05/04/2011 | CN102046915A Method for treating a hydrocarbon containing formation |
| 05/04/2011 | CN102041976A Method for removing and inhibiting wax by oil well air heating |
| 05/04/2011 | CN101634219B Electromagnetic heating device for oil well |
| 04/28/2011 | WO2011050083A2 Steam distribution apparatus and method for enhanced oil recovery of viscous oil |
| 04/28/2011 | WO2011009022A3 Method and apparatus of heat dissipaters for electronic components in downhole tools |
| 04/28/2011 | WO2009077866A3 Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil |
| 04/28/2011 | CA2777750A1 Steam distribution apparatus and method for enhanced oil recovery of viscous oil |
| 04/27/2011 | CN102037110A Improved aqueous-based insulating fluids and related methods |
| 04/27/2011 | CN102031946A Heating device for oil nozzle sleeve |
| 04/27/2011 | CN101598011B Split-type two-pass highly-efficient crude oil heating system in well site |
| 04/21/2011 | US20110088904 In situ recovery from a hydrocarbon containing formation |
| 04/20/2011 | EP2310624A1 Method for removing a consumable downhole tool specification |
| 04/20/2011 | CN102022096A Gas heater of petroleum production well head |
| 04/14/2011 | WO2011008101A3 Subsea cooler |
| 04/14/2011 | WO2010110674A3 Subsea system with subsea cooler and method for cleaning the subsea cooler |
| 04/13/2011 | CN102011564A Tail gas heater of petroleum extraction wellhead |
| 04/12/2011 | US7921913 Vacuum insulated dewar flask |
| 04/07/2011 | US20110079561 System and method for producing hot water without a flame |
| 04/07/2011 | US20110079430 Rotating Control Device, Cool Fluid Circulation System And Methods Of Operation |
| 04/07/2011 | US20110079391 Cooling apparatus and methods for use with downhole tools |
| 04/07/2011 | US20110079380 Subsurface well completion system having a heat exchanger |
| 04/06/2011 | CN201786326U Dual coil pipe heat exchanger |
| 04/06/2011 | CN201786325U Stainless steel high-temperature heat preserving and heat insulating continuous pipe |
| 04/06/2011 | CN201786324U Stainless steel high-temperature heat preserving and insulating connecting pipe |
| 04/06/2011 | CN201786294U Oilfield self-circulation well flushing truck |
| 04/06/2011 | CN102003161A Electric heater for petroleum production well head |
| 04/06/2011 | CN102003160A Electric and fuel gas heater of petroleum extraction wellhead |
| 03/31/2011 | WO2010132704A3 In situ method and system for extraction of oil from shale |
| 03/30/2011 | EP2300509A1 A polyisocyanurate-based syntactic coating for offshore applications |
| 03/30/2011 | CN201780170U Furnace tube high temperature and leakage detecting device |
| 03/30/2011 | CN201778763U Three-high oil well variable frequency electromagnetic oil pipe electric heating oil recovery equipment |
| 03/30/2011 | CN201778762U Remote monitoring type oil well fire coal heating furnace |
| 03/30/2011 | CN201778761U Gas well mouth water jacket furnace gas two-phase separating device |
| 03/30/2011 | CN201778760U Dynamic heating furnace device of drilling fluid |
| 03/30/2011 | CN101994501A Hydrogen-injection oil extraction method |
| 03/29/2011 | US7914266 Submersible pumping system and method for boosting subsea production flow |
| 03/24/2011 | US20110067873 Use of Foam Shape Memory Polymer To Transport Acid or Other Wellbore Treatments |
| 03/23/2011 | CN201771471U Vapor cleaning and paint repair device for oil-water well mouth |
| 03/22/2011 | CA2643380C Electro thermal energy storage for in situ recovery of fluid fuel from hydro carbonaceous earth formations |
| 03/16/2011 | EP2295712A2 Rotating control device for drilling wells |
| 03/16/2011 | CN1614189B Combustion heating apparatus for underground thermal production of petroleum |
| 03/15/2011 | US7905290 Device for the thermal stimulation of gas hydrate formations |
| 03/15/2011 | CA2463112C In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
| 03/15/2011 | CA2462805C Forming openings in a hydrocarbon containing formation using magnetic tracking |
| 03/15/2011 | CA2445173C In situ recovery from a tar sands formation |
| 03/09/2011 | CN201756948U Electric well flushing wax removal vehicle |
| 03/02/2011 | CN201753596U Heating piece for oil extraction well fluid viscosity reduction |
| 03/01/2011 | US7896078 Method of using crosslinkable brine containing compositions |