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 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186)
04/2005
04/21/2005US20050082057 Recovery of heavy oils through in-situ combustion process
04/21/2005US20050081718 Downhole gas/liquid separator and method
04/21/2005US20050081714 Prevent plugging of conduit, pipes, transfer lines
04/21/2005US20050081432 Antiplugging of conduits, valves
04/21/2005US20050081358 Radial expansion of tubular members
04/20/2005EP1524186A1 Device for collecting fluids escaping from an underwater source
04/20/2005EP1523606A1 Method for completing injection wells
04/20/2005EP1362161B1 Seafloor-surface connecting installation of a submarine pipeline installed at great depth
04/20/2005CN2693990Y Inner offset gas sand anchor
04/20/2005CN2693989Y Immerging type oil-well pump with gas-tight, sand-proof, and thick oil pumping functions
04/20/2005CN2693987Y Oil pump with soft sealing plunger
04/20/2005CN2693986Y Sand preventing oil well pump
04/20/2005CN2693949Y Oil-gas separator
04/20/2005CN2693948Y Anti clogging one-way watering valve
04/20/2005CN2693947Y Immersion type oil-well pump for deep well
04/20/2005CN2693940Y Compression high temperature steam injection packer
04/20/2005CN2693772Y Light hydrocarbon, gas and water three in one treatment apparatus
04/20/2005CN1608167A In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
04/19/2005US6880646 Laser wellbore completion apparatus and method
04/19/2005US6880638 Device for an opening in an outer sleeve of a sleeve valve and a method for the assembly of a sleeve valve
04/19/2005US6880637 Full bore automatic gun release module
04/19/2005US6880635 Methods and systems for production of hydrocarbons, hydrogen, and/or other products from underground coal formations
04/19/2005US6880633 In situ thermal processing of an oil shale formation to produce a desired product
04/19/2005US6880632 Calibration assembly for an interactive swage
04/19/2005US6880402 Deposition monitoring system
04/14/2005WO2005033472A1 Perforation gun system producing self-closing perforation holes
04/14/2005WO2005033471A1 A feed pump for a sand removal apparatus in an underground well
04/14/2005WO2005019484A3 Charging material for producing refractory high-strength spherical granules and method for the production thereof
04/14/2005WO2004094784A3 A wellbore apparatus and method for completion, production and injection
04/14/2005WO2004094769A3 Improved well screen with internal shunt tubes exit nozzles and connectors with manifold
04/14/2005WO2004094767A3 Expanded liner system and method
04/14/2005WO2004067961A3 Lubrication system for radially expanding tubular members
04/14/2005US20050077383 Atomization jet assembly
04/14/2005US20050077235 Integrated three phase separator
04/14/2005US20050077087 Bearing and lubrication system for earth boring bit
04/14/2005US20050077052 Expandable Completion System and Method
04/14/2005US20050077051 Radial expansion of tubular members
04/14/2005US20050077050 Installation of downhole electrical power cable and safety valve assembly
04/14/2005US20050077046 Apparatus and methods for separating and joining tubulars in a wellbore
04/14/2005US20050077040 Water pressure system with pressure tank installed within well casing of well
04/13/2005EP1522921A1 Method and apparatus for dynamic application management in sub-sea well installations
04/13/2005EP1522674A2 Expandable Tubing
04/13/2005EP1339950A4 Full bore automatic gun release module
04/13/2005EP1315881A4 Method and system for perforating
04/13/2005EP1301686B1 Combined liner and matrix system
04/13/2005EP1171687B1 Method and system for increasing oil production from an oil well producing a mixture of oil and gas
04/13/2005CN2692377Y Oil well pump drop proof fixing valve
04/13/2005CN2692349Y Large pore diameter testing instrument
04/13/2005CN2692346Y Device of uniformly mixing liquid for chemical agent injection oil well
04/13/2005CN2692345Y Power metallurgy membrane sand filtering pipe
04/13/2005CN2692344Y Under well oil extraction screen pipe
04/13/2005CN2692343Y Energy saving device of oil pumping machine
04/13/2005CN2692342Y Back flow oil increasing apparatus
04/13/2005CN1605756A Eccentric l wear prevention oil-well pump
04/13/2005CN1605712A Water seal stopping leak process for underground gasification furnace
04/13/2005CN1605711A Method for preparing superheated steam and steam heating furnace
04/13/2005CN1196865C Sealing gasket component for submerged pump
04/13/2005CN1196850C Method for controlling stroke period of pumping unit
04/12/2005US6877965 Mechanical bladder pump
04/12/2005US6877571 Down hole drilling assembly with independent jet pump
04/12/2005US6877567 Expansion set liner hanger and method of setting same
04/12/2005US6877566 Method and apparatus for causing pressure variations in a wellbore
04/12/2005US6877562 Oil well perforator
04/12/2005US6877561 Gravel packing method using vibration and hydraulic fracturing
04/12/2005US6877560 Methods of preventing the flow-back of particulates deposited in subterranean formations
04/12/2005US6877556 Electrochemical process for effecting redox-enhanced oil recovery
04/12/2005US6877555 In situ thermal processing of an oil shale formation while inhibiting coking
04/12/2005US6877554 Pyrolysis
04/12/2005US6877553 Profiled recess for instrumented expandable components
04/12/2005CA2328454C Orienting downhole tools
04/12/2005CA2297034C Variable choke for use in a subterranean well and method of controlling a fluid flow
04/12/2005CA2154994C Well tubing
04/12/2005CA2120485C Method and apparatus for sealing the juncture between a vertical and horizontal well
04/07/2005WO2005031116A2 Procedure and apparatus for collection of free methane gas from the sea bottom
04/07/2005WO2005031115A1 Expandable wellbore assembly
04/07/2005WO2005031112A1 System and method of production enhancement and completion of a well
04/07/2005WO2005031111A1 Zonal isolation using elastic memory foam
04/07/2005WO2005031110A1 Assembly for connecting a jumper to a subsea structure
04/07/2005WO2005031105A2 Alternate path gravel packing with enclosed shunt tubes
04/07/2005WO2004109057A3 Method of thermally insulating pipes
04/07/2005WO2004085787A3 Dual function cleaning tool
04/07/2005WO2004018824B1 Magnetic impulse applied sleeve method of forming a wellbore casing
04/07/2005US20050074210 Downhole fiber optic wet connect and gravel pack completion
04/07/2005US20050074196 Gravel pack completion with fiber optic monitoring
04/07/2005US20050072578 Thermally-controlled valves and methods of using the same in a wellbore
04/07/2005US20050072576 Mud flow back valve
04/07/2005US20050072574 System and method for injecting gas into a hydrocarbon reservoir
04/07/2005US20050072569 Expander tool for use in a wellbore
04/07/2005US20050072567 Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore
04/07/2005US20050072301 Procedure and apparatus for collection of free methane gas from the sea bottom
04/06/2005EP1520084A1 Corrugated downhole tubulars
04/06/2005EP1520083A2 Dovetail thread coupling for expandable tubulars
04/06/2005EP1409839B1 Method and apparatus for detonating an explosive charge
04/06/2005EP1358395B1 Oil well perforator
04/06/2005EP1305501A4 Method for treating multiple wellbore intervals
04/06/2005EP1250514B1 Downhole wireless two-way telemetry system
04/06/2005EP1250513B1 System and method for fluid flow optimization in a gas-lift oil well
04/06/2005CN2690625Y Double pumping tube high efficiency oil pumping tube type pump
04/06/2005CN2690624Y Combined valve seat type pump valve of drilling pump
04/06/2005CN2690623Y Hydraulic balancing oil pump
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