| 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) |
|---|
| 05/25/2011 | CN201843592U Oil-gas well perforation ground dynamic simulation tester |
| 05/25/2011 | CN201843591U Brake device for oil pumping unit |
| 05/25/2011 | CN201843590U Gas well underground vortex drainage gas production tool |
| 05/25/2011 | CN201843589U Composite crown type chain beam-pumping unit |
| 05/25/2011 | CN201843588U Beam-balanced pumping unit |
| 05/25/2011 | CN201843582U Hydraulic sliding sleeve for well completion |
| 05/25/2011 | CN201843564U Beating type constant flow stopper |
| 05/25/2011 | CN201843521U Side tracking bent pipe guider |
| 05/25/2011 | CN1973093B Top tensioned riser |
| 05/25/2011 | CN1930368B Dual cone expander for expanding a tubular element to different diameters |
| 05/25/2011 | CN102076930A Method for increasing the recovery of hydrocarbons |
| 05/25/2011 | CN102076929A Liquid rod pump |
| 05/25/2011 | CN102071933A Method and device for sampling produced fluid of oil reservoir for microbial flooding |
| 05/25/2011 | CN102071930A Multi-stage cylindrical barrel sand filling tube device for simulating two-dimensional rock core |
| 05/25/2011 | CN102071923A Successive elution method and device for cores as well as equipment formed by device |
| 05/25/2011 | CN102071922A Low permeable oil deposit virtual horizontal well development method |
| 05/25/2011 | CN102071921A Underground drilling and fracturing-integrated staged fracturing device and gas drainage process |
| 05/25/2011 | CN102071920A Gas extraction equipment and method for low coal penetration layer |
| 05/25/2011 | CN102071919A Oil-gas well fiber assisted water control fracturing method |
| 05/25/2011 | CN102071918A Thick oil reservoir fire flooding oil extraction combustion-supporting ignition method |
| 05/25/2011 | CN102071917A Microbial multi-cycle huff and puff oil production method |
| 05/25/2011 | CN102071916A Oil-water separate mining string of bottom water reservoir and jet pump thereof |
| 05/25/2011 | CN102071915A Annular space continuous nitrogen injection auxiliary heat insulation method for offshore thermal recovery |
| 05/25/2011 | CN102071914A Novel sand control screen pipe with adjustable on-site sand stop precision |
| 05/25/2011 | CN102071913A Intelligent online closed-loop pumping unit balance adjustment system |
| 05/25/2011 | CN102071890A Dry frictional damping vibration-isolation energy-saving beam hanger |
| 05/25/2011 | CN102071879A Novel prestressed heat-insulation oil pipe |
| 05/25/2011 | CN102069190A Preparation method of ultra-deep penetration perforation ammunition type cover |
| 05/25/2011 | CN101324185B Automatic switch double-guide mechanism of downhole measurement adjusting instrument |
| 05/24/2011 | US7947745 Reducing the viscosity of an aqueous fluid |
| 05/24/2011 | US7947633 Polycationic viscoelastic compositions |
| 05/24/2011 | US7947629 Method of acidizing sandstone formations |
| 05/24/2011 | US7947627 Fluid loss control agent with triggerable removal mechanism |
| 05/24/2011 | US7946346 Supercritical fluid recovery and refining of hydrocarbons from hydrocarbon-bearing formations applying fuel cell gas in situ |
| 05/24/2011 | US7946344 Method and assembly for producing oil and/or gas through a well traversing stacked oil and/or gas bearing earth layers |
| 05/24/2011 | US7946342 In situ generation of steam and alkaline surfactant for enhanced oil recovery using an exothermic water reactant (EWR) |
| 05/24/2011 | CA2721992A1 Generation of fluid for hydrocarbon recovery |
| 05/24/2011 | CA2721988A1 A steam-gas-solvent (sgs) process for recovery of heavy crude oil and bitumen |
| 05/24/2011 | CA2656658C Staged centrifugal pump apparatus for pumping a viscous fluid |
| 05/24/2011 | CA2648708C Rheology modifiers |
| 05/24/2011 | CA2574336C Real-time production-side monitoring and control for heat assisted fluid recovery applications |
| 05/24/2011 | CA2539212C Method and apparatus to complete a well having tubing inserted through a valve |
| 05/24/2011 | CA2501722C Optimizing well system models |
| 05/24/2011 | CA2495647C A pipe separator for the separation of fluids, particularly oil, gas and water |
| 05/24/2011 | CA2482943C Means and method for assessing the geometry of a subterranean fracture during or after a hydraulic fracturing treatment |
| 05/24/2011 | CA2482743C Protective sleeve for threaded connections for expandable liner hanger |
| 05/23/2011 | CA2721991A1 In situ heating for reservoir chamber development |
| 05/23/2011 | CA2721779A1 Coal bed methane recovery |
| 05/19/2011 | WO2011059923A1 Gas/fluid inhibitor tube system |
| 05/19/2011 | WO2011059567A1 Low emission power generation and hydrocarbon recovery systems and methods |
| 05/19/2011 | WO2011058325A2 Downhole progressive pressurization actuated tool and method of using the same |
| 05/19/2011 | WO2011058324A1 Use of micro-electro-mechanical systems (mems) in well treatments |
| 05/19/2011 | WO2011058187A2 Method and system for lining a section of a wellbore with an expandable tubular element |
| 05/19/2011 | WO2011058015A1 Jacking units and bellows for down hole intervention tools |
| 05/19/2011 | WO2011058014A1 Injection drill bit |
| 05/19/2011 | WO2011057579A1 Pumping unit drawn directly by external-rotor motor |
| 05/19/2011 | WO2011057564A1 Combined fracturing and perforating method and device for oil and gas well |
| 05/19/2011 | WO2011057369A1 Depressurisation system for subsea lines and equipment, and hydrate removal method |
| 05/19/2011 | WO2011028558A3 Fracturing and gravel packing tool with anti-swabbing feature |
| 05/19/2011 | WO2011028432A3 Flexible catenary riser having distributed sag bend ballast |
| 05/19/2011 | WO2011028364A3 Apparatus and method for performing an intervention in a riser |
| 05/19/2011 | WO2011022323A3 Self aligning mud saver valve seat |
| 05/19/2011 | WO2011014634A3 Apparatus and method for controlling water in-flow into wellbores |
| 05/19/2011 | WO2011014565A3 Liner expansion system with a recoverable shoe assembly |
| 05/19/2011 | US20110118153 Method of continuous dissolution of polyacrylamide emulsions for enhanced oil recovery (eor) |
| 05/19/2011 | US20110114340 System and method for transporting fluids in a pipeline |
| 05/19/2011 | US20110114339 Well drilling wash down end cap |
| 05/19/2011 | US20110114335 Subsurface Safety Valve Flapper |
| 05/19/2011 | US20110114332 Tubing section |
| 05/19/2011 | US20110114331 Systems and methods for producing oil and/or gas |
| 05/19/2011 | US20110114329 Apparatus and method for providing a controllable supply of fluid to subsea well equipment |
| 05/19/2011 | US20110114322 Surfactant based viscoelastic fluids and methods of using the same |
| 05/19/2011 | US20110114321 Open/Close Outlet Internal Hydraulic Device |
| 05/19/2011 | US20110114320 Stand-alone frac liner system |
| 05/19/2011 | US20110114319 Open hole stimulation with jet tool |
| 05/19/2011 | US20110114318 Compositions and systems for combatting lost circulation and methods of using the same |
| 05/19/2011 | US20110114316 Methods and Devices for One Trip Plugging and Perforating of Oil and Gas Wells |
| 05/19/2011 | US20110114313 Heterogeneous proppant placement in a fracture with removable channelant fill |
| 05/19/2011 | US20110114312 Self-Diverting High-Rate Water Packs |
| 05/19/2011 | US20110114311 Method of producing hydrocarbon fluid from a layer of oil sand |
| 05/19/2011 | US20110114309 Sensor for determining downhole parameters and methods for using same |
| 05/19/2011 | US20110114305 Fluid well pumping system and method to produce same |
| 05/19/2011 | CA2789357A1 Combined fracturing and perforating method and device for oil and gas well |
| 05/19/2011 | CA2785706A1 Jacking units and bellows for down hole intervention tools |
| 05/19/2011 | CA2778311A1 Downhole progressive pressurization actuated tool and method of using the same |
| 05/19/2011 | CA2778195A1 Method and system for lining a section of a wellbore with an expandable tubular element |
| 05/18/2011 | EP2322758A2 Debris barrier for downhole tools |
| 05/18/2011 | EP2321497A2 Traveling undercut solution mining systems and methods |
| 05/18/2011 | EP2321496A1 Method and device for the "in-situ" conveying of bitumen or very heavy oil |
| 05/18/2011 | EP2321495A1 Methods and systems for gas production from a reservoir |
| 05/18/2011 | EP2321494A1 Method for optimizing in-situ bioconversion of carbon-bearing formations |
| 05/18/2011 | EP2321493A1 Remote actuation of downhole well tools |
| 05/18/2011 | CN201836869U Multi-path convection section of steam injection boiler in oil field |
| 05/18/2011 | CN201835821U Wired detector for height of downhole fluid column for oil production |
| 05/18/2011 | CN201835813U Concrete target for evaluating bullet perforator |
| 05/18/2011 | CN201835812U Wireless underground fluid column height detector for oil production |
| 05/18/2011 | CN201835808U Gas-water separation refilling device |
| 05/18/2011 | CN201835807U Perforating and fracturing sand control device filled with composite sand control materials |
| 05/18/2011 | CN201835806U Hot water circulation supporting oil pumping string |
| 05/18/2011 | CN201835805U Anti-counter flow device for eccentric water distributor |