| 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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| 07/20/2011 | CN201902201U Movable roller balancing oil pumping unit with continuous oil pumping rod |
| 07/20/2011 | CN201902200U Rod and pipe circulation heating underground converter for thick oil well |
| 07/20/2011 | CN201902199U Power combined type oil pumping machine with ultra long stroke for a plurality of wells |
| 07/20/2011 | CN102132004A Pulse fracturing device and method |
| 07/20/2011 | CN102132003A Systems and methods for producing oil and/or gas |
| 07/20/2011 | CN102131889A Methods of treating a hydrocarbon-bearing formation, a well bore, and particles |
| 07/20/2011 | CN102128047A Gas-slag separation and recovering system for drilling construction |
| 07/20/2011 | CN102128030A Wellbore vicinity shearing simulating device with multistage cylindrical barrel with sand-prevention compacted sand bodies |
| 07/20/2011 | CN102128021A Quantitative degasser with floater and trimming device thereof |
| 07/20/2011 | CN102128020A Oilfield enhanced in situ combustion process |
| 07/20/2011 | CN102128019A Integrated hydrogen production and hydrocarbon extraction |
| 07/20/2011 | CN102128018A Electric double-guide flow allocating device |
| 07/20/2011 | CN102128017A Counterweight balance petroleum pumping unit |
| 07/20/2011 | CN102128016A Method for improving resin sand curing strength by using stratum thermogenesis technology |
| 07/20/2011 | CN102127519A High-temperature-resistant gene engineering bacterium for producing extracellular water-insoluble polysaccharide and application thereof |
| 07/20/2011 | CN101619756B Stroke frequency regulating apparatus of oil pumping machine |
| 07/20/2011 | CN101220739B Dynamic negative pressure device for oil gas well |
| 07/20/2011 | CN101148978B Curved-pulling type pumping unit |
| 07/19/2011 | US7981845 Partially neutralized polyhydroxy acids for well treatments |
| 07/19/2011 | US7980787 Dual pressure tensioner method |
| 07/19/2011 | US7980786 Dual pressure tensioner system |
| 07/19/2011 | US7980330 Well tubular, retrievable joint strainer and method |
| 07/19/2011 | US7980316 Formation isolation valve |
| 07/19/2011 | US7980314 Gas restrictor for pump |
| 07/19/2011 | US7980312 Integrated in situ retorting and refining of oil shale |
| 07/19/2011 | US7980309 Method for selective activation of downhole devices in a tool string |
| 07/19/2011 | US7980308 Perforating gun assembly and method for controlling wellbore fluid dynamics |
| 07/19/2011 | US7980306 Methods, systems and apparatus for coiled tubing testing |
| 07/19/2011 | US7980304 Method and system for extraction of hydrocarbons from oil shale |
| 07/19/2011 | US7980302 Compliant expansion swage |
| 07/19/2011 | US7980299 Horizontal well treating method |
| 07/19/2011 | CA2611769C Degradable fiber systems for stimulation |
| 07/19/2011 | CA2600699C Pipe separator inlet |
| 07/19/2011 | CA2600534C Arrangement for the cleaning of a pipe separator |
| 07/19/2011 | CA2593969C A composition and method for making a proppant |
| 07/19/2011 | CA2565864C Method and apparatus for completing lateral channels from an existing oil or gas well |
| 07/14/2011 | WO2011085245A1 Slant well desalination feedwater supply system and method for constructing same |
| 07/14/2011 | WO2011085215A2 Wirelessly actuated hydrostatic set module |
| 07/14/2011 | WO2011084769A2 System and method for waterflooding offshore reservoirs |
| 07/14/2011 | WO2011084581A1 Integrated enhanced oil recovery process injecting nitrogen |
| 07/14/2011 | WO2011084529A2 Constant pressure open hole water packing system |
| 07/14/2011 | WO2011084497A1 System, method and assembly for wellbore maintenance operations |
| 07/14/2011 | WO2011084222A1 Shaped charge |
| 07/14/2011 | WO2011083421A1 Method for treating water and producing steam and steam-production facility |
| 07/14/2011 | WO2011083066A1 Method for repairing a liner hanger, device and blank for implementation thereof |
| 07/14/2011 | WO2011082870A1 Determining methane content of a bottom sample |
| 07/14/2011 | WO2011082678A1 Metering and separating device for natural gas |
| 07/14/2011 | WO2011082557A1 Tower frame non-guide-pulley combined drive oil pumping unit |
| 07/14/2011 | WO2011044078A3 Chemical injection of lower completions |
| 07/14/2011 | WO2011038107A3 Method and apparatus for injecting fluid in a wellbore |
| 07/14/2011 | WO2011034692A3 Controlling coal fines in coal bed operations |
| 07/14/2011 | WO2011028562A4 Isolation valve for subterranean use |
| 07/14/2011 | WO2011019750A3 Hydraulic geofracture energy storage system |
| 07/14/2011 | WO2010036547A3 Pressure relieving transition joint |
| 07/14/2011 | US20110173139 Slagging coal combustor for cementitious slag production, metal oxide reduction, shale gas and oil recovery, enviromental remediation, emission control and co2 sequestration |
| 07/14/2011 | US20110170320 Transmitting electric power into a bore hole |
| 07/14/2011 | US20110168413 System and Method for Optimizing Production in Gas-Lift Wells |
| 07/14/2011 | US20110168403 Wirelessly actuated hydrostatic set module |
| 07/14/2011 | US20110168400 System and method for connecting and aligning a compliant guide |
| 07/14/2011 | US20110168399 Mid water gas lift |
| 07/14/2011 | US20110168396 Method of fracturing using ultra lightweight proppant suspensions and gaseous streams |
| 07/14/2011 | US20110168395 Methods of Fluid Loss Control and Fluid Diversion in Subterranean Formations |
| 07/14/2011 | US20110168394 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid |
| 07/14/2011 | US20110168393 Methods of Using Fluid Loss Additives Comprising Micro Gels |
| 07/14/2011 | US20110168392 Remote Operation of an Oilfield Device |
| 07/14/2011 | US20110168391 Method for dynamically assessing petroleum reservoir competency and increasing production and recovery through asymmetric analysis of performance metrics |
| 07/14/2011 | US20110168387 Resilient Foam Debris Barrier |
| 07/14/2011 | US20110168386 Tubing expansion |
| 07/14/2011 | US20110168384 Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing same |
| 07/14/2011 | CA2786826A1 Metering and separating device for natural gas |
| 07/14/2011 | CA2785216A1 Method for treating water and producing steam and steam-production facility |
| 07/14/2011 | CA2784890A1 System and method for waterflooding offshore reservoirs |
| 07/14/2011 | CA2784496A1 System, method and assembly for wellbore maintenance operations |
| 07/14/2011 | CA2784244A1 Method for repairing a liner hanger, device and blank for implementation thereof |
| 07/14/2011 | CA2779712A1 Integrated enhanced oil recovery process injecting nitrogen |
| 07/13/2011 | EP2343416A1 Borehole pump system |
| 07/13/2011 | EP2342488A2 Method for assembling an operating rig for a fluid in a body of water and associated operating rig |
| 07/13/2011 | EP2342304A1 Additives to suppress silica scale build-up |
| 07/13/2011 | CN201896919U Intermediate wheel device for pumping unit |
| 07/13/2011 | CN201896632U Drilling well for gas drainage |
| 07/13/2011 | CN201896613U Gas pressure measuring device |
| 07/13/2011 | CN201896607U Phase-changing heating furnace formed through combining thick oil heating split body |
| 07/13/2011 | CN201896606U Highly efficient energy-saving device of beam pumper |
| 07/13/2011 | CN201896605U Oil receiving pan type lubricating device for speed reducer of pumping unit |
| 07/13/2011 | CN102124184A Producing gaseous hydrocarbons from hydrate capped reservoirs |
| 07/13/2011 | CN102124183A Hydrocarbon production system, method for performing clean-up and method for controlling flow |
| 07/13/2011 | CN102124181A Well completion system |
| 07/13/2011 | CN102122161A System and method for controlling interval pumping of oil well |
| 07/13/2011 | CN102121535A Disassembling-free skeleton-free shaft oil seal and seal maintaining operation process of speed reduction box |
| 07/13/2011 | CN102121395A Method for integrated comprehensive management of gas in low-permeability single coal bed |
| 07/13/2011 | CN102121394A Method for uncovering outburst coal seam by using pseudo lithosphere on laneway |
| 07/13/2011 | CN102121381A Shearing simulative device for near wellbore zone with circular platform barrel body |
| 07/13/2011 | CN102121380A Combined cylindrical barrel near wellbore area shear simulation device |
| 07/13/2011 | CN102121371A Underground solid-liquid and oil-water separating device for reciprocating producing well |
| 07/13/2011 | CN102121370A Skid-mounted bradenhead gas four-tower separation recovery device and method thereof |
| 07/13/2011 | CN102121369A Method for separating gas |
| 07/13/2011 | CN102121368A High pressure abrasive water jet slotting device of oil well |
| 07/13/2011 | CN102121367A Underground steam injection sealing, heat insulation and compensation integrated device |
| 07/13/2011 | CN102121366A Oil sucking machine with small torque and low energy consumption |
| 07/13/2011 | CN102121365A System for wirelessly acquiring data and monitoring working condition of pumping unit of oil field |