| 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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| 05/08/2013 | CN103097651A Combined barrier and lubrication fluids pressure regulation system and unit for a subsea motor and pump module |
| 05/08/2013 | CN103097650A A compensated barrier and lubrication fluids pressure regulation system for a subsea motor and pump module |
| 05/08/2013 | CN103097649A Series configured variable flow restrictors for use in a subtrerranean well? |
| 05/08/2013 | CN103097647A Sealing system |
| 05/08/2013 | CN103090010A Non-contact sealing system |
| 05/08/2013 | CN103089872A Oil field pumping unit braking device and intelligent control system thereof |
| 05/08/2013 | CN103089859A Oil field pumping unit double-braking device and intelligent control system thereof |
| 05/08/2013 | CN103089294A Multi-well casing net-shaped device of coal bed gas exploration and coal underground gasification |
| 05/08/2013 | CN103089255A Multi-phase flow logging instrument adopting full flow-collecting dynamic interface tracking method |
| 05/08/2013 | CN103089230A Oil deposit extraction method of solvent assisted fireflooding gravity drainage |
| 05/08/2013 | CN103089229A Acid fracturing pipe column ball seat capable of fishing and being used repeatedly |
| 05/08/2013 | CN103089228A Cross-linked acid and sand-carrying acid-fracturing method for ground with argillaceous dolomites |
| 05/08/2013 | CN103089227A Large drift diameter drilling-free segmented fracture well completion sliding sleeve device |
| 05/08/2013 | CN103089226A Fracturing unit for oil field exploitation |
| 05/08/2013 | CN103089225A Anti-washout annular injection fracturing six way |
| 05/08/2013 | CN103089224A Fracturing method for comprehensively controlling fracture height |
| 05/08/2013 | CN103089223A Solar Plant For Enhanced Oil Recovery |
| 05/08/2013 | CN103089222A Polymer injection device free from dropping and fishing |
| 05/08/2013 | CN103089221A Underground emulsification system and emulsification method thereof |
| 05/08/2013 | CN103089220A Rotary stirring and emulsification viscosity reduction flow string under high thick oil pump |
| 05/08/2013 | CN103089219A Injection surfactant ground device applicable to field of oilfield exploitation |
| 05/08/2013 | CN103089218A Underground emulsifying system applicable to field of oil exploitation |
| 05/08/2013 | CN103089217A Working method of surfactant injection ground device |
| 05/08/2013 | CN103089216A Method for doping chemical agent into hollow sucker rod |
| 05/08/2013 | CN103089215A Oil sleeve annulus chemical agent mixing viscosity reduction process pipe column |
| 05/08/2013 | CN103089214A Oil sleeve annulus chemical agent mixing viscosity reduction method |
| 05/08/2013 | CN103089213A Process pipe for doping chemical agent into hollow sucker rod |
| 05/08/2013 | CN103089212A Rotary stirring and emulsification viscosity reduction method under high thick oil pump |
| 05/08/2013 | CN103089211A Microbial enhanced oil recovery method |
| 05/08/2013 | CN103089210A Variable frequency speed regulation method of oilfield water injection system |
| 05/08/2013 | CN103089209A Single-pipe multi-well water distribution system |
| 05/08/2013 | CN103089208A Oil extraction system for valve type heavy oil extraction pump |
| 05/08/2013 | CN103089207A Oil extraction method based on valve thick oil extraction pump |
| 05/08/2013 | CN103089206A System and method of improved fluid production from gaseous wells |
| 05/08/2013 | CN103089205A Two-channel oil extraction switch |
| 05/08/2013 | CN103089204A Double-coal-bed layered pressure control device combining coal discharging and coal mining |
| 05/08/2013 | CN103089203A Pressure relief device of dynamic negative pressure perforating operation |
| 05/08/2013 | CN103089202A Tension bar type pressure exploder |
| 05/08/2013 | CN103089201A Tensioner Cylinder Connections With Multiaxial Degrees Of Freedom |
| 05/08/2013 | CN103089200A Multifunctional energy-saving and environment-friendly parameter-adjusting device |
| 05/08/2013 | CN103089199A Depleted oil-gas reservoir underground gas storage injection-production string and operating method thereof |
| 05/08/2013 | CN103089196A Combination processing method of bridge plug seat sealing and sand blast perforating conducted by oil tube and device thereof |
| 05/08/2013 | CN103089194A Method for completing well by cementing top of expandable screen |
| 05/08/2013 | CN103089182A Well completion method for tail pipe combining expansion sleeve pipe and expansion sieve pipe |
| 05/08/2013 | CN103089180A Casing sidetracked well completion method using expansion screen tube |
| 05/08/2013 | CN103088841A Leveling detachable underwater loading device |
| 05/08/2013 | CN103087700A AM (Acrylic Amide)/NaAA (Sodium Acrylate)/AT (Diallyl Para Toluene Sulfonamide) ternary polymer oil-displacing agent and synthetic method thereof |
| 05/08/2013 | CN103087699A Sand-carrying profile control agent composition of fracture-cave type oil deposit and profile control method of profile control agent |
| 05/08/2013 | CN103086483A Water purification method and oil extraction process comprising water purification method |
| 05/08/2013 | CN101985875B Hydraulic pulse-assisted reservoir chemical remedial treatment experiment device and method |
| 05/08/2013 | CN101956548B Coal bed methane multi-branch horizontal well system and modification method thereof |
| 05/08/2013 | CN101865102B Automatic hydraulic augmented injection pump |
| 05/08/2013 | CN101542069B Wellbore apparatus and method for completion, production and injection |
| 05/08/2013 | CA2783904A1 Settable well tool and slips |
| 05/08/2013 | CA2757962A1 Processing a hydrocarbon stream using supercritical water |
| 05/08/2013 | CA2757950A1 Ported packer |
| 05/07/2013 | US8437962 Generating probabilistic information on subterranean fractures |
| 05/07/2013 | US8434568 Method and system for circulating fluid in a well system |
| 05/07/2013 | US8434556 Apparatus and methods for removing mercury from formation effluents |
| 05/07/2013 | US8434551 Method of controlling growth and heat loss of an in situ gravity draining chamber formed with a condensing solvent process |
| 05/07/2013 | US8434549 System, apparatus and process for collecting balls from wellbore fluids containing sand |
| 05/04/2013 | CA2769064A1 Method of recovering oil from extra heavy oil layer |
| 05/02/2013 | WO2013063591A2 Calculating downhole cards in deviated wells |
| 05/02/2013 | WO2013062884A1 Pressure cycle independent indexer and methods |
| 05/02/2013 | WO2013062806A1 Method and apparatus for removing liquid from a horizontal well |
| 05/02/2013 | WO2013062754A1 Low emission heating of a hydrocarbon formation |
| 05/02/2013 | WO2013060847A1 Inflow control device |
| 05/02/2013 | WO2013060660A1 Combined casing system and method |
| 05/02/2013 | WO2013060610A1 Capacitor device for a conductor loop in a device for the in-situ production of heavy oil and bitumen from oil-sand deposits |
| 05/02/2013 | WO2013060270A1 Oil extraction method of establishing oil-permeable water-resistant sieve by filling fusheng sand into fracture of horizontal well |
| 05/02/2013 | WO2013059909A1 Steam flooding with oxygen injection, and cyclic steam stimulation with oxygen injection |
| 05/02/2013 | WO2013040003A3 Active waveshaper for deep penetrating oil-field charges |
| 05/02/2013 | WO2013036415A3 Use of nano-sized phyllosilicate minerals in viscoelastic surfactant fluids |
| 05/02/2013 | WO2013028645A3 Coal seam gas fracking systems and methods |
| 05/02/2013 | WO2013028457A3 Method and apparatus for selectively controlling fluid flow |
| 05/02/2013 | WO2013028456A3 Composite inflow control device |
| 05/02/2013 | WO2013028383A3 Chemical injection system |
| 05/02/2013 | WO2013013234A3 Gun upset and no-go system for deployment of perforating gun assemblies |
| 05/02/2013 | WO2012051309A3 Method and apparatus for hydraulically fracturing wells |
| 05/02/2013 | WO2011153011A3 Compact cable suspended pumping system for lubricator deployment |
| 05/02/2013 | US20130109598 Method of Oil Extraction |
| 05/02/2013 | US20130108472 Fluid Load Line Calculation and Concavity Test for Downhole Pump Card |
| 05/02/2013 | US20130106117 Low Emission Heating of A Hydrocarbon Formation |
| 05/02/2013 | US20130105362 Systems and methods for integrating bitumen extraction with bitumen upg... |
| 05/02/2013 | US20130105179 Method and apparatus for using pressure cycling and cold liquid co2 for releasing natural gas from coal and shale formations |
| 05/02/2013 | US20130105174 Method and apparatus for artificial lift using well fluid electrolysis |
| 05/02/2013 | US20130105172 Pressure cycle independent indexer and methods |
| 05/02/2013 | US20130105167 Novel Method for Enhancing Fracture Conductivity |
| 05/02/2013 | US20130105166 Methods for Providing Proppant Slugs in Fracturing Treatments |
| 05/02/2013 | US20130105165 Hydrophobically associating copolymers |
| 05/02/2013 | US20130105164 High energy in-line hydraulic shearing unit for oilfield drilling fluids |
| 05/02/2013 | US20130105163 Method of opening productive formations and a working fluid provided therefor |
| 05/02/2013 | US20130105159 Methods for Stimulating Multi-Zone Wells |
| 05/02/2013 | US20130105157 Hydraulic Fracturing Method |
| 05/02/2013 | US20130105156 Artificial lift system for well production |
| 05/02/2013 | US20130105155 Method of processing a hydrocarbon resource including supplying rf energy using an extended well portion |
| 05/02/2013 | US20130105154 Well treatment agents coated with alternating layers of polyionic materials and methods of using the same |
| 05/02/2013 | US20130105153 System and method for converting class ii hydrate reservoirs |
| 05/02/2013 | US20130105152 Method and Apparatus for Downhole Fluid Conditioning |
| 05/02/2013 | US20130105151 Steam supply for enhanced oil recovery |