| 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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| 04/14/2011 | US20110083848 Process for mineral oil production using surfactant mixtures |
| 04/14/2011 | US20110083847 Process for tertiary mineral oil production using surfactant mixtures |
| 04/14/2011 | US20110083846 Process for tertiary mineral oil production using surfactant mixtures |
| 04/14/2011 | US20110083844 Seismic Fluid Prediction Via Expanded AVO Anomalies |
| 04/14/2011 | US20110083843 System and method for preparing near-surface heavy oil for extraction using microbial degradation |
| 04/14/2011 | US20110083839 Coaxial Electric Submersible Pump Flow Meter |
| 04/14/2011 | US20110083838 System and method for electrical resistivity tomography and/or electrical impedance tomography |
| 04/14/2011 | DE102010048044A1 Perforationskanonensystem mit selbstverschließenden Durchschusslöchern Perforationskanonensystem with self-sealing Bullet holes |
| 04/14/2011 | CA2776862A1 Apparatuses and methods of manufacturing oilfield machines |
| 04/14/2011 | CA2776627A1 Method for hydrocarbon removal and recovery from drill cuttings |
| 04/14/2011 | CA2774878A1 A tool for a horizontal connecting device |
| 04/14/2011 | CA2774875A1 Horizontal connecting device |
| 04/13/2011 | EP2307666A2 Method of manufacture and the use of a functional proppant for determination of subterranean fracture geometries |
| 04/13/2011 | CN201795469U Heat insulation layer of ocean platform thermal oil recovery and steam injection boiler |
| 04/13/2011 | CN201795016U Transmission device with transversally mounted motor |
| 04/13/2011 | CN201794575U First settlement cup for oil extraction underground gas anchor |
| 04/13/2011 | CN201794574U Oil well two-phase separation device |
| 04/13/2011 | CN201794573U Multi-lateral horizontal well system for coal bed gas |
| 04/13/2011 | CN201794572U Solar high-temperature heat pump heating device for oil production system |
| 04/13/2011 | CN201794571U Sectional gas injection tube column |
| 04/13/2011 | CN201794570U Control device for injection allocation vehicle unit of profile control liquid |
| 04/13/2011 | CN201794569U Novel sieve tube |
| 04/13/2011 | CN201794568U Packing sand prevention equipment of oil-gas well |
| 04/13/2011 | CN201794567U Sucker polished rod |
| 04/13/2011 | CN201794566U Combined-driving belt-type oil pumping unit with one-sided parallel linear motors |
| 04/13/2011 | CN201794565U Eccentric brake abrasion preventing device of beam pumping unit |
| 04/13/2011 | CN201794564U Program-controlled energy saver for pumping units |
| 04/13/2011 | CN201794563U Selective production string optionally adjustable within four layers |
| 04/13/2011 | CN201794562U Oil pumping machine capable of mechanically changing speed and direction |
| 04/13/2011 | CN201794561U Novel tower frame type beam-pumping unit |
| 04/13/2011 | CN201794560U Tower type pumping unit |
| 04/13/2011 | CN201794559U Energy-saving tower-type oil pumping device |
| 04/13/2011 | CN201794558U Crank power sliding slot rail oil pumping unit |
| 04/13/2011 | CN201794557U Ultrasonic atomization drainer for gas well |
| 04/13/2011 | CN201794556U Automatic gas production system for gas well |
| 04/13/2011 | CN201794555U Combined pumping unit |
| 04/13/2011 | CN201794554U Front-mounted beam-balanced pumping unit |
| 04/13/2011 | CN201794548U Internally eccentric gas-lift working barrel |
| 04/13/2011 | CN201794546U Hydraulic connecting device for underwater production tree and wellhead |
| 04/13/2011 | CN201794525U Sucker rod trip operating device under pressure |
| 04/13/2011 | CN102016227A Producing resources using heated fluid injection |
| 04/13/2011 | CN102015573A Strong low density ceramics |
| 04/13/2011 | CN102011580A Method for predicting failure pressure of reservoir with acid damage |
| 04/13/2011 | CN102011574A Method for increasing yield of coal bed methane through vibration |
| 04/13/2011 | CN102011573A Method for uniformly injecting multi-component thermal fluid in horizontal well |
| 04/13/2011 | CN102011572A Composite high-temperature profile control method for heavy oil well |
| 04/13/2011 | CN102011571A Method for profile control by using polymer at offshore oilfield polymer flooding stratum |
| 04/13/2011 | CN102011570A Process method for CO2 molded ground |
| 04/13/2011 | CN102011569A Well assembly with removable fluid restricting member |
| 04/13/2011 | CN102011568A Filter screen material for sand control pipe in oil exploitation |
| 04/13/2011 | CN102011567A Positive torque rail variable force arm method and mechanism for walking beam pumping unit |
| 04/13/2011 | CN102011566A Leakage risk early warning method for offshore oil and gas production device |
| 04/13/2011 | CN102011565A Hydraulic straight stream oil extracting device |
| 04/13/2011 | CN102010704A Viscoelastic surfactant cleaning fracturing fluid gel breaker and field construction method |
| 04/13/2011 | CN101131071B Liquid fill adapter for gas well |
| 04/13/2011 | CN101084363B Method, system, controller for controlling the flow of a multiphase fluid |
| 04/12/2011 | US7923417 Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications |
| 04/12/2011 | US7923416 Method of reducing the viscosity of hydrocarbon fluids |
| 04/12/2011 | US7923415 Methods to reduce settling rate of solids in a treatment fluid |
| 04/12/2011 | US7923414 Rheology modifier comprising a tetrakis(hydroxyalkyl) phosphonium salt for polymer fluids |
| 04/12/2011 | US7922873 Method and apparatus for desalinating water combined with power generation |
| 04/12/2011 | US7921925 Method and apparatus for expanding and separating tubulars in a wellbore |
| 04/12/2011 | US7921922 Formation saver sub and method |
| 04/12/2011 | US7921920 Anti-coning well intake |
| 04/12/2011 | US7921914 Combined three-in-one fracturing system |
| 04/12/2011 | US7921912 Non-acid acidizing methods and compositions |
| 04/12/2011 | US7921911 Surface-modifying agents for wettability modification |
| 04/12/2011 | US7921910 Tagged propping agents and related methods |
| 04/12/2011 | US7921909 Method for breaking fracture fluids |
| 04/12/2011 | US7921908 Gas restrictor for horizontally oriented pump |
| 04/12/2011 | US7921907 In situ method and system for extraction of oil from shale |
| 04/12/2011 | CA2521658C Expanded liner system and method |
| 04/12/2011 | CA2429932C Circular shaped charge |
| 04/12/2011 | CA2416718C Crosslinked polymer fluids and crosslinking concentrates therefor |
| 04/07/2011 | WO2011041674A2 Flow control device that substantially decreases flow of a fluid when a property of the fluid is in a selected range |
| 04/07/2011 | WO2011041525A2 Method and system for running subsea test tree and control system without conventional umbilical |
| 04/07/2011 | WO2011039392A1 Device and method for treating a damaged stratum zone adjacent to a petroleum or gas well drilling zone |
| 04/07/2011 | WO2011010223A3 Wellbore subassembly with a perforating gun |
| 04/07/2011 | WO2011005460A3 Method for providing a temporary barrier in a flow pathway |
| 04/07/2011 | WO2010148204A3 Particle stabilized emulsions for extraction of hydrocarbons from oil sands and oil shale |
| 04/07/2011 | US20110081208 Automatically adjustable caisson clamp |
| 04/07/2011 | US20110080035 Method and System for Solution Mining |
| 04/07/2011 | US20110079439 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 04/07/2011 | US20110079400 Active integrated completion installation system and method |
| 04/07/2011 | US20110079397 Jet-drilling and completion process |
| 04/07/2011 | US20110079396 Method of Making a Flow Control Device That Reduces Flow of the Fluid When a Selected Property of the Fluid is in Selected Range |
| 04/07/2011 | US20110079395 Method and system for running subsea test tree and control system without conventional umbilical |
| 04/07/2011 | US20110079392 Additives to suppress silica scale build-up and methods of use thereof |
| 04/07/2011 | US20110079389 Method for treating well bore within a subterranean formation |
| 04/07/2011 | US20110079388 Downhole separation and reinjection |
| 04/07/2011 | US20110079387 Method of Providing a Flow Control Device That Substantially Reduces Fluid Flow Between a Formation and a Wellbore When a Selected Property of the Fluid is in a Selected Range |
| 04/07/2011 | US20110079386 System and Method for Downhole Communication |
| 04/07/2011 | US20110079382 Chemical injection of lower completions |
| 04/07/2011 | CA2716685A1 Multi-piece pressure operated rings for a downhole pump plunger |
| 04/06/2011 | EP2305947A2 Geothermal liner system with packer |
| 04/06/2011 | EP2304171A2 Methods and apparatus for hydrocarbon recovery |
| 04/06/2011 | EP2304170A1 A pumping device for pumping fluid |
| 04/06/2011 | EP2304169A2 Assembly for use in a christmas tree |
| 04/06/2011 | CN201786847U Anticorrosion mule head pin for pumping unit |
| 04/06/2011 | CN201786348U Oil-gas separator for avoiding oil flowing backwards at air outlet |