Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 36 - Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
Patents for E21B 36 - Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones (4,262)
12/2008
12/04/2008US20080296017 Methods and Apparatus to Sample Heavy Oil from a Subteranean Formation
12/03/2008CN101316984A Systems and methods for producing hydrocarbons from tar sands with heat created drainage paths
12/03/2008CN101316982A Cogeneration systems and processes for treating hydrocarbon containing formations
11/2008
11/27/2008WO2008143749A1 Downhole burners for in situ conversion of organic-rich rock formations
11/27/2008WO2008143745A1 Downhole burner wells for in situ conversion of organic-rich rock formations
11/27/2008WO2008048817A3 Engine/steam generator with afterburner
11/27/2008US20080292412 Arctic platform
11/27/2008US20080292411 Arctic platform
11/27/2008US20080289816 Biogenic fuel gas generation in geologic hydrocarbon deposits
11/27/2008CA2680695A1 Downhole burners for in situ conversion of organic-rich rock formations
11/26/2008CN201155324Y Hollow sucker rod heater
11/26/2008CN101311493A Active cable for wellbore heating and distributed temperature sensing
11/25/2008US7455104 Expandable elements
11/20/2008WO2008089071A3 Subterranean electro-thermal heating system and method
11/20/2008US20080286053 Arctic platform
11/19/2008EP1738055B1 Temperature limited heaters used to heat subsurface formations
11/19/2008CN201152159Y Oil-extracting well head attemperator
11/13/2008WO2008137940A1 A system and method for controlling heat flow in a downhole tool
11/13/2008WO2008137189A2 Process for dispersing nanocatalysts into petroleum-bearing formations
11/13/2008US20080277162 System and method for controlling heat flow in a downhole tool
11/13/2008DE102007022439A1 Versorgungsleitungsstrang Supply wiring harness
11/12/2008CN201148861Y Antifreeze explosion prevention quick automatic steam generator
11/12/2008CN201148843Y Releasing type water block pipe pillar capable of heat washing to protect oil layer
11/11/2008US7449664 Oil and gas well alloy squeezing method and apparatus
11/05/2008CN201144663Y Special electrical heating plug for winter test of separate injection well
11/05/2008CN101300401A Methods and systems for producing fluid from an in situ conversion process
11/04/2008US7445041 Method and system for extraction of hydrocarbons from oil shale
10/2008
10/30/2008WO2008131179A1 In situ heat treatment from multiple layers of a tar sands formation
10/30/2008WO2008131177A1 In situ heat treatment of a tar sands formation after drive process treatment
10/30/2008WO2008131175A1 Molten salt as a heat transfer fluid for heating a subsurface formation
10/30/2008WO2008131173A1 Heating systems for heating subsurface formations
10/30/2008WO2008131168A1 Electrically isolating insulated conductor heater
10/30/2008WO2008051299A3 Systems and processes for use in treating subsurface formations
10/30/2008WO2008030268A3 In situ recovery from hydrocarbonaceous earth formations
10/30/2008WO2007117810A3 Enhanced hydrocarbon recovery by steam injection of oil sand formations
10/30/2008CA2684485A1 Electrically isolating insulated conductor heater
10/30/2008CA2684442A1 In situ heat treatment from multiple layers of a tar sands formation
10/30/2008CA2684437A1 In situ heat treatment of a tar sands formation after drive process treatment
10/30/2008CA2684430A1 Molten salt as a heat transfer fluid for heating a subsurface formation
10/30/2008CA2684422A1 Heating systems for heating subsurface formations
10/29/2008CN101297096A Temperature limited heater with a conduit substantially electrically isolated from the formation
10/29/2008CN101294483A Self-washing wax-clearing method for electric heating oil well
10/28/2008US7441602 Flowline insulation system
10/28/2008CA2354128C Apparatus and method for well fluid sampling
10/23/2008US20080257549 Consumable Downhole Tools
10/22/2008CN201137486Y Down-hole cable-free electromagnetic electric heating membrane remixed heating oil extraction device
10/21/2008US7440283 Thermal isolation devices and methods for heat sensitive downhole components
10/15/2008EP1733119B8 Method for intensification of high-viscosity oil production and apparatus for its implementation
10/08/2008EP1977078A1 Selective electromagnetic production tool
10/07/2008US7431076 Temperature limited heaters using modulated DC power
10/07/2008CA2514776C Method for completing a well using increased fluid temperature
10/02/2008US20080236831 Condensing vaporized water in situ to treat tar sands formations
10/02/2008US20080236820 Production of natural gas from hydrates
10/02/2008US20080236810 System for Power Supply to Subsea Installations
10/01/2008CN201125710Y Full-automatic oil well self-heat power anti-wax viscosity reduction apparatus
09/2008
09/30/2008CA2478928C Wellbore pumping with improved temperature performance
09/26/2008CA2627390A1 Drilling, completing and stimulating a hydrocarbon production well
09/24/2008CN201121510Y Paraffin removing overhauling car
09/18/2008US20080223579 Cooling Systems for Downhole Tools
09/17/2008CN201116464Y Well-washing wax-cleaning automatic control device
09/16/2008US7424916 Flameless hot oiler
09/16/2008US7424915 Vacuum pumping of conductor-in-conduit heaters
09/14/2008CA2622160A1 Cooling systems for downhole tools
09/11/2008US20080217058 Heating device for passage through subterranean asphalt and method of use
09/10/2008CN101260790A Wellhead heat insulation and heating equipment for well workover
08/2008
08/28/2008WO2008051827A3 Heating tar sands formations while controlling pressure
08/28/2008US20080206699 Method and apparatus for heating a liquid storage tank
08/21/2008US20080196892 Enzyme enhanced oil recovery (EEOR) for waterflooding operations
08/20/2008CN201103381Y Electrically heated wax clearing and preventing device for non-lever oil production well
08/20/2008CN201103380Y Multifunctional self-washing car for oil-pumping well
08/14/2008WO2008096287A1 Active cable for wellbore heating and distributed temperature sensing
08/14/2008WO2008048456A3 Optimized well spacing for in situ shale oil development
08/14/2008WO2008045408A8 Method for producing viscous hydrocarbon using steam and carbon dioxide
08/14/2008CA2679994A1 Active cable for wellbore heating and distributed temperature sensing
08/13/2008CN201100117Y Self well washing device
08/12/2008US7410327 Arctic platform
08/12/2008US7410002 Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
08/07/2008WO2008051834A3 Heating hydrocarbon containing formations in a spiral startup staged sequence
08/07/2008US20080185184 Cryogenic drilling method
08/07/2008US20080185142 Downhole transducer with adjacent heater
08/07/2008US20080185138 Active Cable for Wellbore Heating and Distributed Temperature Sensing
08/06/2008CN101235711A Hollow sucker rod electric heater unit
07/2008
07/31/2008CA2578643A1 Heating apparatus for heating operating equipment at remote sites
07/24/2008WO2008048453A3 Improved method of developing a subsurface freeze zone using formation fractures
07/24/2008US20080173450 Time sequenced heating of multiple layers in a hydrocarbon containing formation
07/24/2008CA2673854A1 Subterranean electro-thermal heating system and method
07/23/2008EP1945904A2 Improved vacuum insulated dewar flask
07/17/2008WO2008060668A3 Temperature limited heaters using phase transformation of ferromagnetic material
07/17/2008US20080169095 Downhole steam injection splitter
07/16/2008CN101220740A Electric heating apparatus of hollow sucker rod
07/09/2008EP1941127A1 Systems and methods for producing hydrocarbons from tar sands with heat created drainage paths
07/09/2008EP1941126A1 Temperature limited heater with a conduit substantially electrically isolated from the formation
07/09/2008EP1941125A1 Cogeneration systems and processes for treating hydrocarbon containing formations
07/09/2008CN201083128Y Annular space water detector electrothermal leading head
07/09/2008CN201083114Y Electric heating device for cleaning and resisting wax of oil well
07/09/2008CN201083112Y Wind electricity oil well and pipeline heat tracing device
07/09/2008CN201082902Y Device for protecting fire tube type heating furnace smoke and fire pipe cathode
07/09/2008CN100400793C Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations
07/08/2008CA2406741C In situ recovery of hydrocarbons from a kerogen-containing formation
07/03/2008WO2008080072A2 Radiation processing of heavy oils
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