| 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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| 05/23/2013 | US20130126165 Wellbore lateral liner placement system |
| 05/23/2013 | US20130126164 Releasing activators during wellbore operations |
| 05/23/2013 | US20130126163 Method of fracturing with aphron containing fluids |
| 05/23/2013 | US20130126162 In-situ zonal isolation and treatment of wells |
| 05/23/2013 | US20130126161 Elastomer-modified crosslinked epoxy vinyl ester particles and methods for making and using the same |
| 05/23/2013 | US20130126160 Crosslinked epoxy vinyl ester particles and methods for making and using the same |
| 05/23/2013 | US20130126159 Method and composition for cementing a casing in a wellbore |
| 05/23/2013 | US20130126155 Methods and Apparatus for Removing Liquid from a Gas Producing Well |
| 05/23/2013 | US20130126152 Pressure relief device, system, and method |
| 05/23/2013 | CA2855724A1 Positive displacement motor with radially constrained rotor catch |
| 05/23/2013 | CA2855391A1 Detecting and correcting unintended fluid flow between subterranean zones |
| 05/23/2013 | CA2855371A1 Preventing flow of undesired fluid through a variable flow resistance system in a well |
| 05/23/2013 | CA2854120A1 Reactive choke for automatic wellbore fluid management and methods of using same |
| 05/23/2013 | CA2845831A1 Perforating stimulation bullet |
| 05/23/2013 | CA2844928A1 Autonomous fluid control system having a fluid diode |
| 05/22/2013 | EP2594733A1 Method for optimising the exploitation of an underground medium by means of a reservoir study comprising optimised scaling |
| 05/22/2013 | EP2593640A1 Pressure balancing proppant addition method and apparatus |
| 05/22/2013 | EP2593639A2 Safeguarding arrangement for collecting a fluid escaping into a body of water |
| 05/22/2013 | CN202946133U Gas-liquid separation system in well |
| 05/22/2013 | CN202946132U Drillable fracturing slide bushing device |
| 05/22/2013 | CN202946131U Pawl spring clamping buckle type self-locking pressing crack sliding sleeve |
| 05/22/2013 | CN202946130U 压差式滑套 Differential pressure sleeve |
| 05/22/2013 | CN202946129U High-stability pressure-differential type sliding bushing |
| 05/22/2013 | CN202946128U Mechanical sliding sleeve |
| 05/22/2013 | CN202946127U Ball-pressurized fracturing device |
| 05/22/2013 | CN202946126U Pressure difference type fracturing sliding sleeve device |
| 05/22/2013 | CN202946125U Visual test device for collection assistance by carrying liquid on rockshaft |
| 05/22/2013 | CN202946124U Water injection pipe |
| 05/22/2013 | CN202946123U Separate-layer oil production device |
| 05/22/2013 | CN202946122U Shock absorption system of petroleum drilling and logging device |
| 05/22/2013 | CN202946121U Integrated perforation, acid fracturing, pilot production and seal coat tubular column |
| 05/22/2013 | CN202946120U Energy-saving oil pumping unit |
| 05/22/2013 | CN202946119U Pour-point reduction and gas injection energization integrated construction tubular column for high pour-point oil stratums |
| 05/22/2013 | CN202946118U Direction-changing pumping unit |
| 05/22/2013 | CN202946117U Sliding oil-dredging device |
| 05/22/2013 | CN202946116U Anti-explosion hydraulic pumping air collection machine |
| 05/22/2013 | CN202946115U Main auxiliary oil cylinder type hydraulic pumping machine |
| 05/22/2013 | CN202946113U Thickened oil exploitation solar energy battery mixed power supply heating device |
| 05/22/2013 | CN202946112U Switching device of fracturing sliding sleeve |
| 05/22/2013 | CN202946108U 注气阀 Note valve |
| 05/22/2013 | CN202946088U Snubbing device of heavy oil thermal recovery well |
| 05/22/2013 | CN202946085U Injection-extraction separated thermal recovery well mouth process device |
| 05/22/2013 | CN202946084U Injection-extraction integrated thermal recovery well mouth process device |
| 05/22/2013 | CN202945071U Oil field injected water secondary pollution comprehensive control device |
| 05/22/2013 | CN202942685U Three-phase separator with externally-adjustable weir plate structure |
| 05/22/2013 | CN103119243A Wellbore lateral liner placement system |
| 05/22/2013 | CN103119242A Sand control screen assembly having a mechanically attached screen jacket |
| 05/22/2013 | CN103119221A Underwater oil and gas collection system |
| 05/22/2013 | CN103115108A Electric balancer of beam-pumping unit |
| 05/22/2013 | CN103114871A Extraction device and method utilizing microwave coal heating layer |
| 05/22/2013 | CN103114850A Three-dimensional visual physical simulation experimental device |
| 05/22/2013 | CN103114849A Core sealing device and sealing method thereof |
| 05/22/2013 | CN103114843A Multi-layer multi-section continuous oil testing system without lifting tubular column and operation method thereof |
| 05/22/2013 | CN103114842A Experimental facility and model system thereof for simulating thickened oil steam huff and puff oil extraction |
| 05/22/2013 | CN103114841A Bridge type concentric directly-reading testing and regulating meter |
| 05/22/2013 | CN103114838A High-pressure automatic sand discharge device |
| 05/22/2013 | CN103114837A Composite heat carrier crude oil thermal-recovery system and oil recovery process thereof |
| 05/22/2013 | CN103114836A Steam heavy oil thermal recovery equipment and method thereof |
| 05/22/2013 | CN103114835A Nitrogen-aided thickened oil formation emulsification and viscosity reduction exploitation method |
| 05/22/2013 | CN103114834A Method of lowering viscosity of thickened oil |
| 05/22/2013 | CN103114833A Microbe oil extraction method for activating oil deposit deep portion function flora |
| 05/22/2013 | CN103114832A Interaction type stratified water injection measuring method |
| 05/22/2013 | CN103114831A In-situ exploitation method for oil and gas resources of oil shale |
| 05/22/2013 | CN103114830A Enriched-gas-drive water-altering-gas (WAG) injection method |
| 05/22/2013 | CN103114829A Current limiting device with hole diameter adjustable |
| 05/22/2013 | CN103114828A Setting method of underground throttle technological parameter |
| 05/22/2013 | CN103114827A Multi-field coupling coal bed methane extraction simulation testing method |
| 05/22/2013 | CN102453471B Fresh water-based micro bubble drilling fluid for drilling coal bed gas |
| 05/22/2013 | CN102268963B Basement rock fractured formation mixed drilling well completion process |
| 05/22/2013 | CN102155254B Method for extracting gas in low air permeability coal layer by pulse fracture anti-reflection |
| 05/22/2013 | CN102102490B Method for feeding and expanding forked three-way mechanism based on downward orientation |
| 05/22/2013 | CN102080530B Method for constructing horizontal coal bed gas well and vertical drainage and mining well |
| 05/22/2013 | CN101994493B Compound perforation dynamic depressurization device for oil gas well |
| 05/22/2013 | CN101737026B Controllable pulse gas energy pressure cracking device |
| 05/22/2013 | CN101603415B Multiple well pumping unit |
| 05/22/2013 | CN101529050B Method and apparatus for recovering and transporting methane gas |
| 05/22/2013 | CN101506466B System, vessel and method for production of oil and heavier gas fractions from a reservoir below the seabed |
| 05/22/2013 | CN101158267B Method and system for accessing subterranean deposits from the surface |
| 05/21/2013 | US8445414 Compositions and methods for controlling fluid loss |
| 05/21/2013 | US8444344 Temporary containment of oil wells to prevent environmental damage |
| 05/21/2013 | US8443903 Pump down swage expansion method |
| 05/21/2013 | US8443900 Electric submersible pumping system and method for dewatering gas wells |
| 05/21/2013 | US8443892 Fracturing with telescoping members and sealing the annular space |
| 05/21/2013 | US8443891 Methods of fracturing a well using Venturi section |
| 05/21/2013 | US8443890 Methods of stimulating liquid-sensitive subterranean formations |
| 05/21/2013 | US8443888 Apparatus and method for passive fluid control in a wellbore |
| 05/21/2013 | US8443887 Twinaxial linear induction antenna array for increased heavy oil recovery |
| 05/21/2013 | US8443886 Perforating gun with rotatable charge tube |
| 05/21/2013 | US8443881 Expandable liner hanger and method of use |
| 05/21/2013 | CA2806044A1 Integrated xtl and in-situ oil sands extraction processes |
| 05/21/2013 | CA2775787C Multi-stage fracture injection process for enhanced resource production from shales |
| 05/21/2013 | CA2758686A1 Fluid treatment systems, compositions and methods for metal ion stabilization in aqueous solutions |
| 05/21/2013 | CA2710226C Electric submersible pump (esp) with recirculation capability |
| 05/21/2013 | CA2702495C Methods and apparatus to change the mobility of formation fluids using thermal and non-thermal stimulation |
| 05/21/2013 | CA2676964C Oil well completion tool having severable tubing string barrier disc |
| 05/17/2013 | CA2796697A1 Process to optimise production of an underground environment using a reservoir study including optimised scaling |
| 05/17/2013 | CA2793509A1 Method of fracturing with aphron containing fluids |
| 05/16/2013 | WO2013070805A1 Pressure relief device, system, and method |
| 05/16/2013 | WO2013070728A1 System and method for injecting peracetic acid |
| 05/16/2013 | WO2013070585A1 Hydrolyzable particle compositions, treatment fluids and methods |