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)
12/2012
12/19/2012CN202611661U Industrial and mining air heating device with flexible air duct
12/19/2012CN202611660U Two-stage heating-type mining hot air heating device
12/19/2012CN102834586A Methods for heating with slots in hydrocarbon formations
12/19/2012CN102834585A Low temperature inductive heating of subsurface formations
12/18/2012US8333242 Thermothickener polymer and surfactant composition and methods of employing the composition
12/18/2012US8333239 Apparatus and method for downhole steam generation and enhanced oil recovery
12/17/2012CA2743748A1 Thermal assisted gravity drainage (tagd)
12/13/2012US20120312545 Systems and methods for co-production of geothermal energy and fluids
12/12/2012CN202596668U Oil extraction wellhead electric thawing device
12/05/2012CN202578637U Detachable easy-to-install heating thermal-insulation device for snubbing wellhead facility
12/05/2012CN202578636U Single-well oil-producing coal-fired gas-fired dual-purpose automatic-heating device
12/05/2012CN102808605A Adjustable anti-freezing sleeve constant-pressure air release recovery device
12/04/2012US8322423 Oil-based grouting composition with an insulating material
12/04/2012US8322411 Axially loaded tapered heat sink mechanism
11/2012
11/29/2012US20120298367 Earth heat transfer loop appartus
11/28/2012EP2527586A1 Method for induced fracturing in a subsurface formation
11/28/2012CN202560168U Hollow rod well flushing device for oil well
11/28/2012CN202560114U Efficient prestress thermal insulation pipe
11/28/2012CN101163857B Varying properties along lengths of temperature limited heaters
11/27/2012CA2558318C Providing a local response to a local condition in an oil well
11/27/2012CA2515901C Liquid carbon dioxide cleaning of wellbores and near-wellbore areas
11/15/2012WO2012155018A2 Downhole refrigeration using an expendable refrigerant
11/15/2012WO2012155017A2 Desorption of a desiccant by radio waves or microwaves for a downhole sorption cooler
11/15/2012WO2012154336A2 Heat removal in drilling and production operations
11/14/2012CN202531140U Double-sealed hot water flooding tubular column of directional well in oil field
11/14/2012CN202531110U Gas supply system of oil well heating furnace without gas distributing pocket
11/14/2012CN202531109U Electromagnetic paraffin-precipitation controller
11/14/2012CN102777149A Method and device for removing blockage in production strings of oil and gas wells
11/14/2012CN101769141B Localization hot washing device
11/13/2012US8307896 Two-concentric pipe system to heat fluids using the earth's interior thermal energy (deep)
11/13/2012CA2677755C Arctic platform
11/07/2012CN202520285U Electromagnetic heating energy-saving oil-water well bore device
11/06/2012US8302676 Drilling, completing and stimulating a hydrocarbon production well
10/2012
10/31/2012CN102758595A Well blowout processing device of geothermal system
10/30/2012US8297356 Method and system for producing hydrocarbons from a hydrate reservoir using a sweep gas
10/30/2012US8297355 Using heat from produced fluids of oil and gas operations to produce energy
10/24/2012CN102747998A Shale gas production increasing method and shale gas production increasing equipment
10/24/2012CN102747983A Constant temperature control technology for mining wellhead
10/23/2012US8291970 Consumable downhole tools
10/23/2012US8291969 Consumable downhole tools
10/23/2012CA2650199C Method of heating sub sea esp pumping systems
10/18/2012WO2012141599A1 A subsea cooling apparatus, and a separately retrievable submersible pump module for a submerged heat exchanger
10/17/2012CN202493240U Antifreeze-type pressure-stabilizing and gas discharging oil extraction composite set
10/16/2012US8286707 Treating subterranean zones
10/16/2012US8286698 Method for producing viscous hydrocarbon using steam and carbon dioxide
10/11/2012WO2012087349A3 Zero emission steam generation process
10/10/2012EP2507471A2 Device and method for obtaining, especially in situ, a carbonaceous substance from an underground deposit
10/10/2012EP2507470A2 Device and method for obtaining, in particular in situ, a substance containing carbon from an underground deposit
10/10/2012CN202483542U Ground auxiliary heating device for ignition by fireflood electric heating
10/10/2012CN202483541U Oil production system for heavy oil reservoir
10/10/2012CN202483514U Tubular column for positioning and hot-washing oil well
10/10/2012CN102720465A Method for forcibly unfreezing frozen hole
10/10/2012CN101163859B In situ conversion process system using at least two areas with well positioned in subsurface
10/09/2012US8281861 Circulated heated transfer fluid heating of subsurface hydrocarbon formations
10/09/2012CA2710944C Snubbing tubulars from a sagd well
10/08/2012CA2772148A1 Produced fluid heating and separation
10/03/2012CN202467987U Engine exhaust waste heat exchange device
10/03/2012CN102704893A Method for cleaning and recovering wax oil of oil pipes, and special thermal washing wax oil removing pipes capable of being disassembled and assembled conveniently
10/02/2012US8276661 Heating subsurface formations by oxidizing fuel on a fuel carrier
10/02/2012US8276657 Well fluid sampling system for use in heavy oil environments
09/2012
09/26/2012CN202451114U High-frequency electromagnetic heating and cleaning device
09/26/2012CN101787867B Drilling mud forced cooling and circulating system
09/26/2012CN101575953B Unit equipment of pipe laying and mixing water
09/25/2012US8272455 Methods for forming wellbores in heated formations
09/20/2012WO2012123461A2 Electrical and static fracturing of a reservoir
09/20/2012WO2012123458A2 Electrical reservoir fracturing
09/19/2012CN202441331U Paraffin removal device for oil well
09/19/2012CN202441330U Heat insulation oil tube device
09/19/2012CN102678087A Two-stage heating type industrial and mining hot-air heating device
09/18/2012US8267170 Offset barrier wells in subsurface formations
09/18/2012US8267166 Arrangement and method for heat transport
09/13/2012WO2012122041A2 Heat recovery method for wellpad sagd steam generation
09/13/2012CA2827656A1 Heat recovery method for wellpad sagd steam generation
09/11/2012CA2692691C Detecting acoustic signals from a well system
09/05/2012CN202417436U Electric heating unfreezing blocking device
09/05/2012CN202417435U Power-adjustable electromagnetic heating device
09/05/2012CN202417434U Mine heating and warm-keeping system
09/05/2012CN202417433U Soot cleaning type industrial and mining hot air heating device
09/05/2012CN102656337A Enhanced convection for in situ pyrolysis of organic-rich rock formations
09/04/2012US8256512 Movable heaters for treating subsurface hydrocarbon containing formations
08/2012
08/28/2012CA2668392C In situ recovery from a tar sands formation
08/22/2012CN202391385U Explosion-proof electric heater
08/22/2012CN101343989B High-dryness oil field steam-injection boiler and high-dryness steam production method
08/14/2012US8240392 Use of foam shape memory polymer to transport acid or other wellbore treatments
08/14/2012US8240370 Integrated hydrogen production and hydrocarbon extraction
08/14/2012CA2668389C In situ recovery from a tar sands formation
08/09/2012WO2012105845A1 Apparatus and method for adaptive control of the working temperature of a cooling object, and the use of a reverse beta configured stirling cycle for the adjustment of the temperature of the cooling object
08/08/2012CN202370483U Heat conducting cone for thick oil well
08/08/2012CN202370482U Reservoir electromagnetic thermal recovery device
08/07/2012US8238730 High voltage temperature limited heaters
08/07/2012US8236736 Oil-based insulating packer fluid
08/07/2012US8235118 Generating heated fluid
08/02/2012WO2012012092A3 Apparatus and method for heating of hydrocarbon deposits by axial rf coupler
07/2012
07/31/2012US8230921 Oil recovery by in-situ cracking and hydrogenation
07/31/2012US8230919 Well thermal insulation for formation sampling of viscous fluids and methods of use thereof
07/26/2012WO2012050699A3 Control system for extraction of hydrocarbons from underground deposits
07/25/2012CN202348235U Energy-saving over-pump thermal recovery system device for thick oil
07/25/2012CN202348231U Geothermal wellbore insulating system
07/25/2012CN102606122A Production process and thermal recovery process of multi-element hot fluid used for thickened oil storage
07/25/2012CN102606121A Multi-element thermal fluid production process for heavy oil reservoir and thermal recovery process
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ... 43