| 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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| 12/17/2013 | US8607868 Composite micro-coil for downhole chemical delivery |
| 12/17/2013 | US8607867 Oil recovery process |
| 12/17/2013 | US8607866 Method for accelerating start-up for steam assisted gravity drainage operations |
| 12/17/2013 | US8607865 Process for extracting mineral oil using surfactants based on butylene oxide-containing alkyl alkoxylates |
| 12/17/2013 | US8607864 Live bottom hole pressure for perforation/fracturing operations |
| 12/17/2013 | US8607862 Method and device for in-situ conveying of bitumen or very heavy oil |
| 12/17/2013 | CA2721369C Rock stress modification technique |
| 12/17/2013 | CA2713734C Method of treating subterranean formations with porous ceramic particulate materials |
| 12/17/2013 | CA2691871C Methods and compositions for selectively dissolving sandstone formations |
| 12/17/2013 | CA2657209C Method for flow control and autonomous valve or flow control device |
| 12/12/2013 | WO2013184743A2 Downhole fluid transport plunger with thruster |
| 12/12/2013 | WO2013184610A1 Continuous multi-stage well stimulation system |
| 12/12/2013 | WO2013184478A1 Flow control system with variable staged adjustable triggering device |
| 12/12/2013 | WO2013184457A1 Fluids for use with high-frequency downhole tools |
| 12/12/2013 | WO2013184435A1 Lateral wellbore completion apparatus and method |
| 12/12/2013 | WO2013184339A1 Far field fracturing of subterranean formations |
| 12/12/2013 | WO2013184245A1 Dual differential pressure multiphase flow meter |
| 12/12/2013 | WO2013184237A1 Wellbore assembly for injecting a fluid into a subsurface formation, and method of injecting fluids into a subsurface formation |
| 12/12/2013 | WO2013184138A1 Shunt tube assembly entry device |
| 12/12/2013 | WO2013184123A1 Wellbore screens and methods of use thereof |
| 12/12/2013 | WO2013184116A1 Enhanced foam stability applications and methods |
| 12/12/2013 | WO2013183363A1 Member for hydrocarbon resource collection downhole tool |
| 12/12/2013 | WO2013182635A1 A method of producing viscous hydrocarbons by steam-assisted gravity drainage |
| 12/12/2013 | WO2013182082A1 Pneumatic fracture method and equipment for shale gas exploitation |
| 12/12/2013 | WO2013181750A1 Thermal pulsing procedure for remediation of cold spots in steam assisted gravity drainage |
| 12/12/2013 | WO2013135639A3 Method for simulating fluid flows for surfactant flooding |
| 12/12/2013 | WO2013097966A3 A subsea connector |
| 12/12/2013 | WO2013066579A3 Method of processing a hydrocarbon resource including supplying rf energy using an extended well portion |
| 12/12/2013 | WO2013043583A3 Gas lift assist for fossil fuel wells |
| 12/12/2013 | US20130331624 Recovery of hydrocarbons from hydrocarbon-containing materials |
| 12/12/2013 | US20130331301 Methods for using complementary surfactant compositions |
| 12/12/2013 | US20130330211 System and method for direct drive pump |
| 12/12/2013 | US20130327727 Apparatus and Method for Fluid Separation |
| 12/12/2013 | US20130327571 Utilization of spheroidized tungsten in shaped charge systems |
| 12/12/2013 | US20130327542 Jumper Tube Locking Assembly and Method |
| 12/12/2013 | US20130327534 Light Well Intervention Umbilical and Flying Lead Management System and Related Methods |
| 12/12/2013 | US20130327531 Viscoelastic Surfactant Fluids and Related Methods of Use |
| 12/12/2013 | US20130327530 Composition and Method to Replace Polysacharides in Hydraulic Fracturing |
| 12/12/2013 | US20130327529 Far field fracturing of subterranean formations |
| 12/12/2013 | US20130327526 Expandable sand screen and method for well casing for thermal oil recovery |
| 12/12/2013 | US20130327525 Thermal pulsing procedure for remediation of cold spots in steam assisted gravity drainage |
| 12/12/2013 | US20130327524 Method for recovering oil from a reservoir by means of micro(nano)-structured fluids with controlled release of barrier substances |
| 12/12/2013 | US20130327523 Method of recovering oil from a subterranean formation |
| 12/12/2013 | US20130327516 Actuation and Release Tool for Subterranean Tools |
| 12/12/2013 | US20130327514 Pressure-Activated Switch |
| 12/12/2013 | CA2875851A1 Shunt tube assembly entry device |
| 12/12/2013 | CA2875559A1 A method of producing viscous hydrocarbons by steam-assisted gravity drainage |
| 12/11/2013 | EP2672059A1 Method and apparatus for controlling fluid flow using moveable flow diverter assembly |
| 12/11/2013 | EP2670951A2 Connection cartridge for downhole string |
| 12/11/2013 | EP2670949A2 Apparatus and methods for tracking the location of fracturing fluid in a subterranean formation |
| 12/11/2013 | EP2670948A2 Device for verifying detonator connection |
| 12/11/2013 | EP2670947A2 Containment unit for marine hydrocarbons and method of using same |
| 12/11/2013 | EP2670946A1 Subsea crude oil and/or gas containment and recovery system and method |
| 12/11/2013 | EP2670943A1 Tool and method to plug and abandon a well |
| 12/11/2013 | EP2670942A1 Method and wellbore system |
| 12/11/2013 | EP2670941A1 System for lining a wellbore |
| 12/11/2013 | CN203338085U Intelligent control system for beam-pumping unit |
| 12/11/2013 | CN203338050U Variable frequency intelligent control system for oil pumping machine |
| 12/11/2013 | CN203337200U Steam injection measuring device for oil field heat exploiting |
| 12/11/2013 | CN203335056U Novel well site gas condensate harmless treatment device |
| 12/11/2013 | CN203335055U Vertical well and horizontal well combined well-flooding well-type structure |
| 12/11/2013 | CN203335054U Multi-branch horizontal well system suitable for coalbed methane of syncline structure |
| 12/11/2013 | CN203335053U Roadway coal bed gas multi-branch horizontal well system |
| 12/11/2013 | CN203335052U Double-face absorbing and discharging device of fracturing blender truck |
| 12/11/2013 | CN203335051U Step-by-step layer-by-layer double-sealing fracturing pipe column of fixed pipe |
| 12/11/2013 | CN203335050U Steam generating device for seabed natural gas hydrate exploitation |
| 12/11/2013 | CN203335049U Foam taking-in and sending-out sand discharging experimental device based on shaft and oil reservoir integration |
| 12/11/2013 | CN203335048U High-temperature and high-pressure rock core displacement instrument |
| 12/11/2013 | CN203335047U Portable deep penetration perforator |
| 12/11/2013 | CN203335046U Power compensation device of oil pumping unit |
| 12/11/2013 | CN203335045U Oil pumping unit |
| 12/11/2013 | CN203335044U Pumping unit braid replacing device |
| 12/11/2013 | CN203335043U Oil well drive pipe gas recovery device |
| 12/11/2013 | CN203335042U Electric submersible pump production tubular column with hydraulic control valve |
| 12/11/2013 | CN203335041U Coal reservoir fracture gas and water flow conductivity dynamic change simulation test device |
| 12/11/2013 | CN203335040U Movable casing gas recycling device |
| 12/11/2013 | CN203335039U Intelligent dynamic equilibrium beam-pumping unit |
| 12/11/2013 | CN203335038U Pumping unit |
| 12/11/2013 | CN203335037U Oil well mouth residual gas recycling, pressurizing and injecting device |
| 12/11/2013 | CN203335036U Pumping unit walking beam micro balancing device |
| 12/11/2013 | CN203335027U Hydraulic control switch for adjusting water injection rate of oil-field water injection well |
| 12/11/2013 | CN203335026U Thermal recovery even thermal fluid injection valve |
| 12/11/2013 | CN203334979U Beam hanger of oil pumping unit |
| 12/11/2013 | CN103443397A Fracturing system and method for an underground formation using natural gas and an inert purging fluid |
| 12/11/2013 | CN103443396A Check valve assembly for well stimulation operations |
| 12/11/2013 | CN103443395A Autonomous valve |
| 12/11/2013 | CN103443394A Autonomous valve |
| 12/11/2013 | CN103437750A Oil-gas separator for gas-fired heater |
| 12/11/2013 | CN103437749A Gas-fired heater for oil-gas separation |
| 12/11/2013 | CN103437748A Underground coal gasifying furnace and underground coal gasifying method |
| 12/11/2013 | CN103437747A Horizontal well stage-unlimited sectional reconstruction method |
| 12/11/2013 | CN103437746A Volume fracturing method for multiple cracks in multiple sections of horizontal well |
| 12/11/2013 | CN103437745A Experimental device for simulating influence of polymer on reservoir sand production and sand control effect and sand filling model |
| 12/11/2013 | CN103437744A Oilfield ground and underground integrated oil extraction intelligent control device |
| 12/11/2013 | CN103437743A Shear-type pressure actuating mechanism used for pressure initiation device and reverse circulation valve |
| 12/11/2013 | CN103437742A Sand-replenishing tool for rapidly opening and closing filling channel |
| 12/11/2013 | CN103437741A Multi-well interactive hydraulic oil pumping machine device |
| 12/11/2013 | CN103437740A Hydraulic transmission beam-pumping unit |
| 12/11/2013 | CN103437726A Oil and gas drilling blowout device and method |
| 12/11/2013 | CN102305027B Anti-corrosion thermal-proof oil pipe with thermal barrier coating on surface for thermal recovery of thick oil |