| 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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| 07/11/2012 | CN102562005A Beam-pumping unit capable of adjusting balance by aid of steel wire rope |
| 07/11/2012 | CN102562004A One-trip tubing string separate-injection coproduction method for thick oil thermal recovery well |
| 07/11/2012 | CN102562003A Servo direct-driven oil pumping unit |
| 07/11/2012 | CN102562002A Direct-drive pumping unit of permanent-magnet disk-type motor |
| 07/11/2012 | CN102562001A Numerical-control energy-saving oil pumping unit with long moment arm |
| 07/11/2012 | CN102562000A Power-saving control method for intelligent oil pumping machine |
| 07/11/2012 | CN102561999A Production truck cantilever and design method of production truck cantilever |
| 07/11/2012 | CN102561998A Gas extraction bored well and forming method |
| 07/11/2012 | CN102561997A Subsea tree workover control system |
| 07/11/2012 | CN102561982A Internal blowout-proof tool for steam flooding well oil tube |
| 07/11/2012 | CN102559772A Method for increasing production of coal bed methane by using exogenous microorganisms |
| 07/11/2012 | CN102559165A Oil recovery bacterium crude oil tending condition control method and applications thereof |
| 07/11/2012 | CN102011580B Method for predicting failure pressure of reservoir with acid damage |
| 07/11/2012 | CN101672173B Dual horsehead fine balance energy-saving walking beam pumping unit |
| 07/11/2012 | CN101469605B Multi-magnetic field constant temperature energy-saving electromagnetic de-waxing apparatus for oilfield |
| 07/10/2012 | US8215409 Method and apparatus for expanded liner extension using uphole expansion |
| 07/10/2012 | US8215407 Apparatus for fluidizing formation fines settling in production well |
| 07/10/2012 | US8215403 Downhole circulating tool and method of use |
| 07/10/2012 | US8215402 Tubing pressure insensitive control system |
| 07/10/2012 | US8215401 Expandable ball seat |
| 07/10/2012 | US8215397 System and method of dynamic underbalanced perforating using an isolation fluid |
| 07/10/2012 | US8215395 Fracturing and gravel packing tool with shifting ability between squeeze and circulate while supporting an inner string assembly in a single position |
| 07/10/2012 | US8215393 Method for treating well bore within a subterranean formation |
| 07/10/2012 | US8215392 Gas-assisted gravity drainage (GAGD) process for improved oil recovery |
| 07/10/2012 | US8215387 In situ combustion in gas over bitumen formations |
| 07/10/2012 | US8215385 Application of degradable polymers in sand control |
| 07/10/2012 | CA2775787A1 Multi-stage fracture injection process for enhanced resource production from shales |
| 07/10/2012 | CA2700535C System and method for performing oilfield operations |
| 07/10/2012 | CA2684805C Foamed gel systems for fracturing subterranean formations, and methods for making and using same |
| 07/10/2012 | CA2670565C Injection of treatment materials into a geological formation surrounding a well bore |
| 07/10/2012 | CA2668534C Downhole anchoring tools conveyed by non-rigid carriers |
| 07/10/2012 | CA2630032C Methods for recovering oil from an oil reservoir |
| 07/10/2012 | CA2614569C Method of increasing reservoir permeability |
| 07/10/2012 | CA2549531C Combined storage facility for co2 and natural gas |
| 07/05/2012 | WO2012092452A2 Short length pump having brine resistant seal and rotating wrist pin and related methods |
| 07/05/2012 | WO2012092404A1 Method and apparatus for using pressure cycling and cold liquid co2 for releasing natural gas from coal and shale formations |
| 07/05/2012 | WO2012091986A2 Process for the preparation of conformable materials for downhole screens |
| 07/05/2012 | WO2012091983A2 Secondary flow path module, gravel packing system including the same, and method of assembly thereof |
| 07/05/2012 | WO2012091981A2 Boron shaped charge |
| 07/05/2012 | WO2012091926A2 Method and apparatus for completing a multi-stage well |
| 07/05/2012 | WO2012091881A2 Method and composition for enhanced hydrocarbons recovery from a formation containing a crude oil |
| 07/05/2012 | WO2012091880A2 Method and composition for enhanced hydrocarbons recovery from a formation containing a crude oil |
| 07/05/2012 | WO2012091840A2 Isolation of zones for fracturing using removable plugs |
| 07/05/2012 | WO2012091829A2 Method and apparatus for controlling fluid flow into a wellbore |
| 07/05/2012 | WO2012091816A2 Liquid lift pumps for gas wells |
| 07/05/2012 | WO2012091758A1 Conformable inflow control device and method |
| 07/05/2012 | WO2012091599A1 Method for tracking a treatment fluid in a subterranean formation |
| 07/05/2012 | WO2012090178A1 Upstream-downstream integrated process for the upgrading of a heavy crude oil with capture of co2 and relative plant for the embodiment thereof |
| 07/05/2012 | WO2012089815A1 Method and system for controlling water flux through an underground formation |
| 07/05/2012 | WO2012089802A1 Artificial lift tool |
| 07/05/2012 | WO2012089786A1 Coalescencer separator for a mixture of immiscible phases with different specific density |
| 07/05/2012 | WO2012089785A1 Separation of two fluid immiscible phases for downhole applications |
| 07/05/2012 | WO2012089006A1 Oil pumping unit used for many wells |
| 07/05/2012 | WO2012088985A1 Composite perforation method and device for carrying supporting agent |
| 07/05/2012 | WO2012088984A1 Powder charging structure of composite fracturing perforation device |
| 07/05/2012 | WO2012088586A1 Methods for drilling and stimulating subterranean formations for recovering hydrocarbon and natural gas resources |
| 07/05/2012 | WO2012058551A3 Remote pig launcher |
| 07/05/2012 | WO2012054342A3 Submersible pump system |
| 07/05/2012 | WO2012040467A3 Wellbore tubular cutter |
| 07/05/2012 | WO2012039987A3 Radio frequency enhanced steam assisted gravity drainage method for recovery of hydrocarbons |
| 07/05/2012 | WO2012030843A3 Methods for completing multi-zone production wells using sliding sleeve valve assembly |
| 07/05/2012 | WO2011153635A8 Wellbore fluid treatment tubular and method |
| 07/05/2012 | WO2011101739A3 Process for the fluidification of a high-viscosity oil directly inside the reservoir |
| 07/05/2012 | US20120168182 Methods for producing oil and/or gas |
| 07/05/2012 | US20120168177 Apparatus and Method for Supplying Electrical Power to an Electrocrushing Drill |
| 07/05/2012 | US20120168170 Oil pipe suspension device and installation method |
| 07/05/2012 | US20120168167 Blowout resistant frictionless hydraulic connector |
| 07/05/2012 | US20120168166 Methods Useful for Diverting Aqueous Fluids in Subterranean Operations |
| 07/05/2012 | US20120168165 Method for intervention operations in subsurface hydrocarbon formations |
| 07/05/2012 | US20120168164 Method and apparatus for controlling fluid flow into a wellbore |
| 07/05/2012 | US20120168163 Method and apparatus for completing a multi-stage well |
| 07/05/2012 | US20120168162 Non frangible perforating gun system |
| 07/05/2012 | US20120168159 Secondary flow path module, gravel packing system including the same, and method of assembly thereof |
| 07/05/2012 | US20120168158 Enhanced hydrocarbon recovery from low mobility reservoirs |
| 07/05/2012 | US20120168157 Method of making pure salt from frac-water/wastewater |
| 07/05/2012 | US20120168155 MULTISTAGE SEPARATOR VESSEL FOR CAPTURING LPGs |
| 07/05/2012 | US20120168154 Use of gas-separation membranes to enhance production in fields containing high concentrations of hydrogen sulfides |
| 07/05/2012 | US20120168153 Watercut sensor using reactive media |
| 07/05/2012 | US20120168151 System and method for managing a subterranean formation |
| 07/05/2012 | US20120168150 Plasma Charges |
| 07/05/2012 | DE112010001474T5 Verbesserte Wärmeübertragung durch einen elektrischen Tauchpumpenmotor Improved heat transfer by an electric submersible pump motor |
| 07/05/2012 | CA2836447A1 Structure for gunpowder charge in combined fracturing perforating devices |
| 07/05/2012 | CA2825645A1 Upstream-downstream integrated process for the upgrading of a heavy crude oil with capture of co2 and relative plant for the embodiment thereof |
| 07/05/2012 | CA2824443A1 Separation of two fluid immiscible phases for downhole applications |
| 07/05/2012 | CA2823475A1 Artificial lift tool |
| 07/05/2012 | CA2823247A1 Method and composition for enhanced hydrocarbons recovery from a formation containing a crude oil |
| 07/05/2012 | CA2823213A1 Short length pump having brine resistant seal and rotating wrist pin and related methods |
| 07/05/2012 | CA2823149A1 Method and composition for enhanced hydrocarbons recovery from a formation containing a crude oil |
| 07/05/2012 | CA2823127A1 Method and apparatus for completing a multi-stage well |
| 07/05/2012 | CA2823042A1 Methods for drilling and stimulating subterranean formations for recovering hydrocarbon and natural gas resources |
| 07/05/2012 | CA2822571A1 Method and apparatus for controlling fluid flow into a wellbore |
| 07/05/2012 | CA2822478A1 Coalescencer separator for a mixture of immiscible phases with different specific density |
| 07/04/2012 | EP2472055A1 Artificial lift tool |
| 07/04/2012 | EP2470751A1 Gravel pack fluid composition and emulsion therefor |
| 07/04/2012 | EP2470750A2 Fiber optic inner string position sensor system |
| 07/04/2012 | EP2470745A2 Flexible catenary riser having distributed sag bend ballast |
| 07/04/2012 | EP2470639A1 Microbial enhanced oil recovery methods |
| 07/04/2012 | EP2288471B1 Method of creating an underwater cutting zone, and related plugging devices and methods |
| 07/04/2012 | CN202301736U 游梁式抽油机弹簧节能平衡装置 Energy-beam pumping unit spring balancing device |
| 07/04/2012 | CN202301656U 游梁式抽油机刹车附助锁紧装置 Beam pumping unit brake locking device attached aid |