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)
03/2014
03/27/2014WO2014046937A1 Methods of treating a subterranean formation with stress-activated resins
03/27/2014WO2014046841A2 Method of completing a multi-zone fracture stimulation treatment of a wellbore
03/27/2014WO2014046799A1 Alternative path gravel pack system and method
03/27/2014WO2014046786A1 Geothermal pyrolysis process and system
03/27/2014WO2014046769A1 H2s removal using scavenging material for gravel pack
03/27/2014WO2014046743A1 A treatment fluid containing a corrosion inhibitor of a polymer including a silicone and amine group
03/27/2014WO2014046670A1 Wireless communication for downhole tool strings
03/27/2014WO2014046656A1 Perforation gun string energy propagation management system and methods
03/27/2014WO2014046655A1 Perforation gun string energy propagation management with tuned mass damper
03/27/2014WO2014046654A1 Extended jet perforating device
03/27/2014WO2014046653A1 Expandable screen by spring force
03/27/2014WO2014046343A1 Method of producing methane gas from gas hydrate by injecting gas
03/27/2014WO2014045815A1 Well proppant and method for recovering hydrocarbon from hydrocarbon-bearing formation
03/27/2014WO2014044978A1 Underwater water treatment unit and method for cleaning said unit
03/27/2014WO2014044973A1 Facility for processing a multiphase fluid and method for characterizing said fluid online
03/27/2014WO2014044930A1 Method and device for collecting a light underwater fluid such as fresh water or hydrocarbons
03/27/2014WO2014044630A2 Expansion assembly, top anchor and method for expanding a tubular in a wellbore
03/27/2014WO2014044200A1 Method for fracture communication, passage processing, and underground gasification of underground carbon-containing organic mineral reservoir
03/27/2014WO2014044192A1 Method for joint-mining of coalbed gas and coal
03/27/2014WO2014043819A1 Amide branched aromatic gelling agent enhancers and breakers
03/27/2014WO2014043747A1 Oxygen injection device and method
03/27/2014WO2014016066A3 Device and method for extracting carbon-containing substances from oil sand
03/27/2014WO2014004542A3 Metal silicides in hydrocarbon production and transportation
03/27/2014WO2014004324A3 A method for shortening an injection pipe underground coal gasification
03/27/2014WO2013127759A3 Washout preventer
03/27/2014WO2013106388A3 Rf applicator having a bendable tubular dielectric coupler and related methods
03/27/2014WO2013102192A3 Real-time dynamic data validation apparatus, system, program code, computer readable medium, and methods for intelligent fields
03/27/2014WO2013038397A3 Methods and equipment to improve reliability of pinpoint stimulation operations
03/27/2014WO2013034470A3 Adjustment device, side pocket mandrel and method related thereto
03/27/2014US20140087976 Method of Drilling Boreholes With Invert Emulsion Drilling Fluids Having Enhanced Rheology
03/27/2014US20140087974 Particulate Weighting Agents Comprising Removable Coatings and Methods of Using the Same
03/27/2014US20140083764 Method and apparatus for expendable tubing-conveyed perforating gun
03/27/2014US20140083720 Expandable Screen by Spring Force
03/27/2014US20140083718 Explosive well tool firing head
03/27/2014US20140083717 High-molecular-weight polyglycolides for hydrocarbon recovery
03/27/2014US20140083714 Single Trip Multi-Zone Completion Systems and Methods
03/27/2014US20140083712 Safety Valve By-Pass System for Cable-Deployed Electric Submersible Pump
03/27/2014US20140083709 Acid soluble abrasive material and method of use
03/27/2014US20140083708 Systems and Methods for Reclosing a Sliding Side Door
03/27/2014US20140083707 Highly-Concentrated Flowable Salts of Alkyl Polyalkoxy Sulphates
03/27/2014US20140083706 Methods and Systems for Providing Steam
03/27/2014US20140083705 Microemulsion to improve the flow of heavy hydrocarbons, its preparation and use
03/27/2014US20140083704 Method for reducing coning in oil wells by means of micro (nano) structured fluids with controlled release of barrier substances
03/27/2014US20140083696 Methods for Enhancing Well Productivity and Minimizing Water Production Using Swellable Polymers
03/27/2014US20140083695 Methods of enhancing fracturing stimulation in subterranean formations using in situ foam generation and pressure pulsing
03/27/2014US20140083694 Methods and Systems for Providing Steam
03/27/2014US20140083693 Enzyme Enhanced Oil Recovery
03/27/2014US20140083692 Method for controlling fluid interface level in gravity drainage oil recovery processes with crossflow
03/27/2014US20140083691 Multiple zone integrated intelligent well completion
03/27/2014US20140083690 Multiple zone integrated intelligent well completion
03/27/2014US20140083689 Method of Completing a Multi-Zone Fracture Stimulation Treatment of a Wellbore
03/27/2014US20140083685 Tubing conveyed multiple zone integrated intelligent well completion
03/27/2014US20140083684 Tubing conveyed multiple zone integrated intelligent well completion
03/27/2014US20140083683 Completion assembly and methods for use thereof
03/27/2014US20140083682 Single Trip Multi-Zone Completion Systems and Methods
03/27/2014US20140083680 System and Method for Detecting Screen-out using a Fracturing Valve for Mitigation
03/27/2014US20140083675 Single Trip Multi-Zone Completion Systems and Methods
03/27/2014US20140083674 Cutting unit of a slot perforator (variants)
03/27/2014US20140083283 High Density Perforating Gun System Producing Reduced Debris
03/27/2014CA2826697A1 Methods for enhancing well productivity and minimizing water production using swellable polymers
03/26/2014EP2711498A1 An active external casing packer (ecp) for frac operations in oil and gas wells
03/26/2014EP2710223A2 Method for injecting low salinity water
03/26/2014EP2710222A2 Linear pressure reducer for regulating injection pressure in an enhanced oil recovery system
03/26/2014EP2710221A2 Seal around braided cable
03/26/2014EP2710088A1 Wellbore fluid used with swellable elements
03/26/2014CN203502770U Energy saving controller
03/26/2014CN203500048U Oil pumping device of electrical submersible progressive cavity pump
03/26/2014CN203499964U Slim-hole mechanical water packing and plugging bridge-crossing oil well pump
03/26/2014CN203499720U Multifunctional orifice sealing device for underground coal mine fracturing pump unit
03/26/2014CN203499667U Self-cleaning type sand prevention oil-gas separation device
03/26/2014CN203499666U Caisson type underwater gas-liquid separator
03/26/2014CN203499665U Gas-water separator applied to air compressor water pumping test
03/26/2014CN203499664U Device used for extracting shale oil and gas by fracturing and chemical dry distillation of oil shale in-situ vertical shaft
03/26/2014CN203499663U Device for extracting shale oil and gas by virtue of fracturing and chemical dry distillation of oil shale in-situ horizontal wells
03/26/2014CN203499662U Device for realizing dual adjustment of support arm and water nozzle by using separation and reunion shaft
03/26/2014CN203499661U Separated layer water injection distributor
03/26/2014CN203499660U Plane visual sand-packed model used for displacement of reservoir oil
03/26/2014CN203499659U Corrosion sand-packed micro glass model used for displacement experiments
03/26/2014CN203499658U Waterpower sand blast perforator and nozzle fixing sleeve thereof
03/26/2014CN203499657U Modular bomb device
03/26/2014CN203499656U Variable firing angle perforator
03/26/2014CN203499655U Directional steel structure
03/26/2014CN203499654U Fixed-face perforation module bullet support for oil and gas wells
03/26/2014CN203499653U Fixed-face perforation device provided with module bullet supports and used for oil and gas wells
03/26/2014CN203499652U Counterweight automatic adjusting device of floor type pumping unit
03/26/2014CN203499651U Device preventing counterweight from falling for floor type pumping unit
03/26/2014CN203499650U Magnetic suspension pump integration underground oil extraction device
03/26/2014CN203499649U Coal bed gas intelligent liquid discharging machine without walking beam
03/26/2014CN203499648U Novel oil well oil-extracting pipe column
03/26/2014CN203499647U Super-long span multistage detonating negative pressure perforating tubular column
03/26/2014CN203499646U Hydraulic type beam-pumping unit
03/26/2014CN203499645U Walking beam tail seat and transverse beam connecting assembly of oil pumping unit
03/26/2014CN203499644U Ultralow-jig-frequency pumping unit reduction device
03/26/2014CN203499618U Gas drive oil production annular test decentralized wellhead device
03/26/2014CN203499611U Gravity compensation type hydraulic anchor
03/26/2014CN103688019A Heterogeneous proppant placement in a fracture with removable extrametrical material fill
03/26/2014CN103688018A Destructible containers for downhole material and chemical delivery
03/26/2014CN103688017A Seal around braided cable
03/26/2014CN103671043A Hydraulic drive oil extraction device
03/26/2014CN103670498A Pre-pumping outburst prevention technology utilizing drill hole instead of stone drift
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