Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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)
08/2010
08/19/2010CA2692994A1 Steam assisted oil recovery and carbon dioxide capture
08/19/2010CA2692988A1 Draining a reservoir with an interbedded layer
08/19/2010CA2692885A1 In situ combustion processes and configurations using injection and production wells
08/18/2010EP2218870A2 Method and apparatus for centrifugal separation
08/18/2010EP2217984A1 Wellhead flowline protection and testing system with esp speed controller and emergency isolation valve
08/18/2010EP2217673A1 Imidazoline-based heterocyclic foamers for downhole injection
08/18/2010EP1354124B1 Method and system for enhanced access to a subterranean zone
08/18/2010CN201557074U Oil extractor motor brake device
08/18/2010CN201554859U Injection agent type shaft seal device for reduction gearbox of oil extractor
08/18/2010CN201554853U Output shaft sealing device for reduction gearbox of oil extractor
08/18/2010CN201554442U Sand prevention oil gas separator
08/18/2010CN201554441U Oil and gas separator
08/18/2010CN201554440U Special gas source purification device for oil field
08/18/2010CN201554439U Steam dispenser
08/18/2010CN201554438U Steam injection dual-sealing heat insulation compensation composite device
08/18/2010CN201554437U Constant nozzle device for watering at wellhead
08/18/2010CN201554436U Temporary plugging sieve tube capable of being opened
08/18/2010CN201554435U Continuous fracturing liquid discharging vehicle
08/18/2010CN201554434U Energy-saving speed-change device for oil extractor
08/18/2010CN201554433U Oil extractor motor overturning platform
08/18/2010CN201554432U Oil extractor composite base
08/18/2010CN201554431U V-shaped two-way electric control oil pumping unit
08/18/2010CN201554430U Belt-traction oil pumping machine of external rotor motor
08/18/2010CN201554421U Self-operated energy-saving control valve of oil well
08/18/2010CN201554392U Self locking type poliched rod eye device for wellhead lifting device of oil extractor
08/18/2010CN201554378U Sealing protection sleeve for oil extraction rod of oil extractor
08/18/2010CN1920251B Method and device for natural gas hydrate exploitation with in-situ catalytic oxidation thermochemistry method
08/18/2010CN1900481B Perforation efficiency detecting system under analogue storage layer condition
08/18/2010CN101809249A A method to enhance proppant conductivity from hydraulically fractured wells
08/18/2010CN101806208A Optimization method for plane well pattern of horizontal well
08/18/2010CN101806207A Horizontal well three-dimensional intersection well pattern structure
08/18/2010CN101806206A Device and method for efficiently extracting natural gas hydrate by using surface layer hot sea water
08/18/2010CN101806205A Adjustable constant-flow multifunctional blanking plug
08/18/2010CN101806204A Straight slit trapezoidal self-cleaning screen pipe
08/18/2010CN101806203A High-pressure hydraulic rotary plug-removing device
08/18/2010CN101806202A Water drainage and gas production simulated experimental device
08/18/2010CN101806201A Self balance energy storage oil extractor
08/18/2010CN101173607B Disjointing controllable multi-layer fracturing tubular pile device of sandblaster and method for controlling disjointing
08/18/2010CN101162016B Yield highly effective oil-well pump for mechanical oil production
08/18/2010CN101067370B Adaptive filling expansion scree tube and expanding method thereof
08/17/2010US7776798 Pumping an aqueous fracturing fluid containing a quaternary alkylamino- or alkylamidoalkylammmonium cationic surfactant (erucylamidopropyltrimethyl ammonium chloride) and an organic or inorganic salt, organic acid, or alcohol through a wellbore and into a subterranean formation to fracture the formation
08/17/2010US7776797 a crosslinkable copolymer of butyl acrylate/tert-/ and acryamide, polyethylenimine as crosslinking agent; filler is alkyl quaternary ammonium montmorillonite; for introducing the formulation into a wellbore and penetrating a subterranean formation to reduce the loss of fluid to the formation
08/17/2010US7776213 Apparatus for enhancing venturi suction in eductor mixers
08/17/2010US7775776 Method and apparatus to pump liquids from a well
08/17/2010US7775304 Apparatus and method for driving casing or conductor pipe
08/17/2010US7775290 Apparatus for radially expanding and plastically deforming a tubular member
08/17/2010US7775286 Convertible downhole devices and method of performing downhole operations using convertible downhole devices
08/17/2010US7775285 Apparatus and method for servicing a wellbore
08/17/2010US7775282 using stabilized aqueous dispersions of water inert polymers in treatment fluids to improve fluid efficiency during hydraulic fracture treatments while minimizing or preventing proppant pack damage
08/17/2010US7775278 Degradable material assisted diversion or isolation
08/17/2010US7775275 Providing a string having an electric pump and an inductive coupler
08/17/2010US7775271 Device and system for well completion and control and method for completing and controlling a well
08/17/2010US7775269 Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve
08/17/2010CA2683339C Method and system for improving pump efficiency and productivity under power disturbance conditions
08/17/2010CA2683320C Method and system for improving pump efficiency and productivity under power disturbance conditions
08/17/2010CA2590546C Methods for controlling migration of particulates in a subterranean formation
08/13/2010CA2692972A1 Method for controlling a hydrocarbons production installation
08/12/2010WO2010091357A1 Method and system for recovering oil and generating steam from produced water
08/12/2010WO2010090891A1 Perforating and jet drilling method and apparatus
08/12/2010WO2010090659A2 Electromagnetic wave treatment of oil wells
08/12/2010WO2010090578A1 A plant for separating oil from a gas mixture, and a method for separating oil from a gas mixture
08/12/2010WO2010090530A1 Pressure-reducing turbine with a power generator disposed in a well stream
08/12/2010WO2010089558A2 Apparatus and method for treating zones in a wellbore
08/12/2010WO2010088789A1 Integrated oil pumping device
08/12/2010WO2010088733A1 Recovery or storage process
08/12/2010WO2010065454A3 Method and apparatus for controlling fluctuations in multiphase flow production lines
08/12/2010WO2010059536A3 Modifying expansion forces by adding compression
08/12/2010WO2010042720A3 Methods and apparatus for thermal drilling
08/12/2010WO2009063189A3 Methods for geomechanical fracture modeling
08/12/2010US20100200249 Gas-assisted process for in-situ bitumen recovery from carbonate reservoirs
08/12/2010US20100200247 System and Method for Controlling Fluid Injection in a Well
08/12/2010US20100200244 Method of and apparatus for completing a well
08/12/2010US20100200243 Method and device
08/12/2010US20100200242 Method and apparatus for centrifugal separation
08/12/2010US20100200239 Friction reducing compositions for well treatment fluids and methods of use
08/12/2010US20100200238 Scale Inhibitors Compatible with Sandstone Acidizing
08/12/2010US20100200237 Methods for controlling temperatures in the environments of gas and oil wells
08/12/2010US20100200234 In Situ Conversion of Heavy Hydrocarbons to Catalytic Gas
08/12/2010US20100200233 Fluid Control Apparatus and Methods For Production And Injection Wells
08/12/2010US20100200232 Process for dispensing nanocatalysts into petroleum-bearing formations
08/12/2010US20100200231 Method and System for Recovering Oil and Generating Steam from Produced Water
08/12/2010US20100200230 Method and Apparatus for Multi-Zone Stimulation
08/12/2010US20100200229 System and method for hydrocarbon recovery and extraction
08/12/2010US20100200227 Bitumen production method
08/12/2010US20100200226 Bottom hole assembly for wellbore operations
08/12/2010US20100200224 Hydrocarbons production installation and method
08/12/2010US20100200223 Method for heating a hydrocarbons reservoir
08/12/2010US20100200218 Apparatus and method for treating zones in a wellbore
08/12/2010US20100200217 System for supporting components within a tubular housing of a wellbore
08/12/2010US20100200212 Field joint for a downhole tool
08/12/2010DE102009007453A1 Verfahren zur Erdgasförderung aus Kohlenwasserstoff-Hydraten bei gleichzeitiger Speicherung von Kohlendioxid in geologischen Formationen Process for the production of natural gas from hydrocarbon hydrates while storing carbon dioxide in geological formations
08/12/2010CA2852121A1 Method and system for recovering oil and generating steam from produced water
08/12/2010CA2751701A1 Method and system for recovering oil and generating steam from produced water
08/12/2010CA2751551A1 A plant for separating oil from a gas mixture, and a method for separating oil from a gas mixture
08/12/2010CA2749591A1 Recovery or storage process
08/11/2010EP2216503A1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
08/11/2010EP2216502A1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
08/11/2010EP2216501A1 Pump
08/11/2010EP2216384A1 A process for creating enhanced cavitation
08/11/2010CN201546691U Multistage separation gas anchor
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