| 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) |
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| 08/01/2013 | WO2012109054A3 A sequential fully implicit well model for reservoir simulation |
| 08/01/2013 | WO2009126376A3 System and method for drilling multilateral wells using magnetic ranging while drilling |
| 08/01/2013 | US20130193743 Apparatus and Method for Mining Coal |
| 08/01/2013 | US20130192844 Passive offshore tension compensator assembly |
| 08/01/2013 | US20130192839 Selective fracture face dissolution |
| 08/01/2013 | US20130192838 Non-hydraulic fracturing systems, methods, and processes |
| 08/01/2013 | US20130192837 Method of increasing efficiency in a hydraulic fracturing operation |
| 08/01/2013 | US20130192836 Water treatment in at least one membrane filtration unit for assisted recovery of hydrocarbons |
| 08/01/2013 | US20130192832 Self-sustaining on-site production of electricity and/or steam for use in the in situ processing of oil shale and/or oil sands |
| 08/01/2013 | US20130192831 Device and method for the recovery, in particular in-situ recovery, of a carbonaceous substance from subterranean formations |
| 08/01/2013 | US20130192830 Limited Depth Abrasive Jet Cutter |
| 08/01/2013 | US20130192829 Method and apparatus for expendable tubing-conveyed perforating gun |
| 08/01/2013 | US20130192826 Composition and method for recovering hydrocarbon fluids from a subterranean reservoir |
| 08/01/2013 | US20130192825 Hydrocarbon resource heating apparatus including upper and lower wellbore rf radiators and related methods |
| 08/01/2013 | US20130192824 Compact cable suspended pumping system for dewatering gas wells |
| 08/01/2013 | US20130192822 Mine Dewatering System And Method |
| 08/01/2013 | US20130192820 Device and method for using the device for "in situ" extraction of bitumen or ultraheavy oil from oil sand deposits |
| 08/01/2013 | US20130192816 Single Well, Self-Flowing, Geothermal System for Energy Extraction |
| 08/01/2013 | CA2862463A1 Heater pattern for in situ thermal processing of a subsurface hydrocarbon containing formation |
| 08/01/2013 | CA2862439A1 System and method for treatment of well completion equipment |
| 08/01/2013 | CA2858435A1 Composition and method for recovering hydrocarbon fluids from a subterranean reservoir |
| 07/31/2013 | EP2620587A2 Series configured variable flow restrictors for use in a subterranean well |
| 07/31/2013 | EP2620586A2 Resettable ball seat |
| 07/31/2013 | EP2620415A1 Apparatus and method for magnetically conditionng fluids |
| 07/31/2013 | EP2619412A1 Method and apparatus for dynamic, variable-pressure, customizable, membrane-based water treatment for use in improved hydrocarbon recovery operations |
| 07/31/2013 | EP2619411A2 Wellbore tubular cutter |
| 07/31/2013 | EP2619410A1 Milling well casing using electromagnetic pulse |
| 07/31/2013 | EP2619409A1 Selective control of flow through a well screen |
| 07/31/2013 | EP2619408A1 Sand control screen assembly having a mechanically attached screen jacket |
| 07/31/2013 | EP2619407A1 Oil collection system and method for deepwater spills |
| 07/31/2013 | EP2619406A1 Method of using carbon dioxide in recovery of formation deposits |
| 07/31/2013 | EP2619405A1 Apparatus and method for fluid treatment of a well |
| 07/31/2013 | EP2619404A1 Wellbore frac tool with inflow control |
| 07/31/2013 | EP2618906A1 Low cut water sampling device |
| 07/31/2013 | CN203104205U Sucker rod drive device of pumping unit |
| 07/31/2013 | CN203101986U Self-adaptive variable-frequency energy-saving control device of rod-pumped well |
| 07/31/2013 | CN203101952U Remote monitoring system for petroleum pumping unit |
| 07/31/2013 | CN203101873U Control apparatus applied to beam pumping unit controller |
| 07/31/2013 | CN203098906U Spring sealing type immovable tubular column steam-injection valve device |
| 07/31/2013 | CN203098646U Brake locking device of oil pumping unit |
| 07/31/2013 | CN203098638U Intelligent wind-power conversion clutch control system |
| 07/31/2013 | CN203097865U Oil well digitalized metering pry not influenced by environment temperature |
| 07/31/2013 | CN203097864U Complex structural well shaft oil-gas-water three-phase fluid mass-variable flow simulating device |
| 07/31/2013 | CN203097862U Gas-liquid separator of pipe type farmland-shaped frame |
| 07/31/2013 | CN203097861U Six-way device preventing erosion ring empty injection fracture |
| 07/31/2013 | CN203097860U Air injection distributing, metering and adjusting device |
| 07/31/2013 | CN203097859U Solar heat collection water circulating heating device for recovering thick oil |
| 07/31/2013 | CN203097858U Filling device of foaming agents and antifoaming agents |
| 07/31/2013 | CN203097857U Three-level underground hydraulic control pressure reducing valve |
| 07/31/2013 | CN203097856U System of filling foaming agent and antifoaming agent at well head |
| 07/31/2013 | CN203097855U Fine adjusting type anti-blocking nozzle |
| 07/31/2013 | CN203097854U Water injection shunt and water injection shunt pipe column |
| 07/31/2013 | CN203097853U Wellhead-diversion offset-well oil production device boosted by ejection of high-pressure gas and liquid and used for deepwater oilfield mud lines |
| 07/31/2013 | CN203097852U Flow parting device under producing well |
| 07/31/2013 | CN203097851U High-permeability sand filtering pipe |
| 07/31/2013 | CN203097850U Emergency release device of deep water drilling riser |
| 07/31/2013 | CN203097849U Pop-up key applicable to tool for emergent separation and suspension of drill column |
| 07/31/2013 | CN203097848U Maintaining device for hair braid of oil pumping unit |
| 07/31/2013 | CN203097847U Wide-belt type pumping unit provided with double chains |
| 07/31/2013 | CN203097846U Power unit of hydraulic pumping unit and hydraulic pumping unit provided with same |
| 07/31/2013 | CN203097845U Three-dimensional four-directional direct drive motor dragging vertical type oil pumping unit |
| 07/31/2013 | CN203097844U Power unit of hydraulic pumping unit and hydraulic pumping unit comprising power unit |
| 07/31/2013 | CN203097843U Releasing type reservoir protection pipe column |
| 07/31/2013 | CN203097842U Driving device of oil pumping device |
| 07/31/2013 | CN203097841U Split-type tower frame |
| 07/31/2013 | CN203097840U Wheel-type pumping unit |
| 07/31/2013 | CN203097839U Radial horizontal well completing tool |
| 07/31/2013 | CN203097838U Oil and gas well producing test manifold device |
| 07/31/2013 | CN203097837U Replaceable anti-blocking lubricating nipple with various diameters |
| 07/31/2013 | CN203097836U Long shaft transmission mechanism of wind power oil system |
| 07/31/2013 | CN203097835U Wind-driven oil pumping system |
| 07/31/2013 | CN203097834U Dense plug type liquid flow conversion device |
| 07/31/2013 | CN203097827U Christmas tree production-continuous opening-detecting and wax-drawing-out device |
| 07/31/2013 | CN203097821U Anti-blocking pressure leveling switch of water injection tubular column |
| 07/31/2013 | CN203097818U Water injection cross |
| 07/31/2013 | CN203097795U Three-layer concentric water injection wellhead |
| 07/31/2013 | CN203097791U Delamination pulse boosting unblocking device for oilfield water injection well |
| 07/31/2013 | CN203091518U Footstep gap screen tube gap squeezing machine |
| 07/31/2013 | CN103228865A Marine subsea assemblies |
| 07/31/2013 | CN103228863A Downhole punch component |
| 07/31/2013 | CN103228862A Entry guide formation on a well liner hanger |
| 07/31/2013 | CN103225498A Multipole composite deep penetration perforation device |
| 07/31/2013 | CN103225497A Exploitation method of vaporizing formation water and displacing heavy oil by microwaves in situ |
| 07/31/2013 | CN103225496A Profile control method for immobile string of injection well |
| 07/31/2013 | CN103225495A Displacement method in sections from near to distant |
| 07/31/2013 | CN103225494A Series configured variable flow restrictors for use in a subterranean well |
| 07/31/2013 | CN103224777A Weak base ternary composite reservoir oil displacement composition with formulated surfactant and application thereof |
| 07/31/2013 | CN102604605B Inorganic salt dual fluid profile control agent and profile control method thereof |
| 07/31/2013 | CN102444783B Pressurizing mixed-conveying device of oil field associated gas and recovering method thereof |
| 07/31/2013 | CN102378650B A plant for separating oil from a gas mixture, and a method for separating oil from a gas mixture |
| 07/31/2013 | CN102373049B Oil displacement method used for improving recovery efficiency of tertiary oil recovery |
| 07/31/2013 | CN102373044B Oil displacement method suitable for MgCl2 water-type oil displacement agent |
| 07/31/2013 | CN102350239B Negative pressure controllable fracturing fluid mixer and fracturing fluid preparation system |
| 07/31/2013 | CN102337111B Bio-enzyme blockage removal production promoter and application thereof |
| 07/31/2013 | CN102220859B Oil flooding method for greatly improving recovery rate of crude oil |
| 07/31/2013 | CN102140912B Underground monitoring device of intelligent well |
| 07/31/2013 | CN102052071B Frustum cylinder-shaped near wellbore zone shear simulation device with sand prevention compacted sand bodies |
| 07/31/2013 | CN101994501B Hydrogen-injection oil extraction method |
| 07/31/2013 | CN101858207B Detachable skid pressurizing integration system |
| 07/31/2013 | CN101835954B Process for removing silica in heavy oil recovery |