| 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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| 05/18/2011 | CN201835804U High-efficient profile control solution injection allocation vehicle group |
| 05/18/2011 | CN201835803U Connecting power device |
| 05/18/2011 | CN201835802U Spring-type sand-protection device |
| 05/18/2011 | CN201835801U Novel linear motor oil pumping unit at ocean platform well mouth |
| 05/18/2011 | CN201835800U One-piece efficient pumping unit |
| 05/18/2011 | CN201835799U Coal bed gas well screw type discharging and producing system based on internet of things |
| 05/18/2011 | CN201835798U Batch-type oil pumping unit with tower |
| 05/18/2011 | CN201835797U Driving device for rope-arranging mechanism |
| 05/18/2011 | CN201835796U Ball screw switching mechanism for underground oil production |
| 05/18/2011 | CN201835795U Cantilever rotating and upturning type double-well long-stroke oil pumping machine |
| 05/18/2011 | CN201835794U Drainage and gas production simulation experiment device |
| 05/18/2011 | CN201835764U Light load shock absorber of rod-pumped well |
| 05/18/2011 | CN201834698U Electromagnetic reciprocating rope arranger |
| 05/18/2011 | CN102066692A Method and system for solution mining |
| 05/18/2011 | CN102061910A Method for establishing waterflooding extraction predictable physical model of sandstone oil deposit |
| 05/18/2011 | CN102061906A Air foam slug flow driving process for oil recovery of oil field |
| 05/18/2011 | CN102061905A Pump to pump water injection device and technological process thereof |
| 05/18/2011 | CN102061158A Foam reinforcing polymer oil displacement agent and method |
| 05/18/2011 | CN101310091B Device for controlling slugging |
| 05/18/2011 | CN101260797B Filtering material for oil well sand preventing screen pipe and method for making same |
| 05/17/2011 | US7943555 Wellbore treatment kits for forming a polymeric precipitate to reduce the loss of fluid to a subterranean formation |
| 05/17/2011 | US7943554 Wellbore fluid comprising at least one polymer containing pendant alkyl groups |
| 05/17/2011 | US7942206 In-flow control device utilizing a water sensitive media |
| 05/17/2011 | US7942205 Secondary oil recovery |
| 05/17/2011 | US7942203 Thermal processes for subsurface formations |
| 05/17/2011 | US7942202 Continuous fibers for use in well completion, intervention, and other subterranean applications |
| 05/17/2011 | US7942201 Apparatus, compositions, and methods of breaking fracturing fluids |
| 05/17/2011 | US7942199 Method for installing wellbore string devices |
| 05/17/2011 | CA2651812C Sealed esp motor system |
| 05/17/2011 | CA2651809C Sealed esp motor system |
| 05/17/2011 | CA2634860C Combined ftc support system |
| 05/17/2011 | CA2620335C Gravity drainage apparatus |
| 05/17/2011 | CA2463867C Riser for connection between a vessel and a point at the seabed |
| 05/17/2011 | CA2462359C Process for in situ recovery of bitumen and heavy oil |
| 05/12/2011 | WO2011056410A2 Drill-in fluids for oil and gas reservoirs with high carbonate contents |
| 05/12/2011 | WO2011056409A2 Method of controlling water production through treating proppants with rpms |
| 05/12/2011 | WO2011056394A2 Systems and methods for initiating annular obstruction in a subsurface well |
| 05/12/2011 | WO2011056393A2 Systems and methods for initiating annular obstruction in a subsurface well |
| 05/12/2011 | WO2011054687A1 Device for applying an expandable skirt having application diameter control upon advance |
| 05/12/2011 | WO2011054192A1 Water removing device for extremly high water content three-phase flow, and measurement device and method for exrtremly hign water content three-phase flow |
| 05/12/2011 | WO2011054085A1 High efficiency fluid pumping apparatus and method |
| 05/12/2011 | WO2011022210A3 Flow path control based on fluid characteristics to thereby variably resist flow in a subterranean well |
| 05/12/2011 | WO2011019791A3 Thermal vapor stream apparatus and method |
| 05/12/2011 | WO2011017193A3 Downhold screen with valve feature |
| 05/12/2011 | WO2011014756A3 A method for recovering oil from an oil well |
| 05/12/2011 | US20110112802 System and Method For Visualizing Data Corresponding To Physical Objects |
| 05/12/2011 | US20110110797 System and method for water expulsion from underwater hydropower plant and hydropower plant associated therewith |
| 05/12/2011 | US20110108283 Method For Remote Identification And Characterization of Hydrocarbon Source Rocks Using Seismic and Electromagnetic Geophysical Data |
| 05/12/2011 | US20110108277 Formation Treatment Using Electromagnetic Radiation |
| 05/12/2011 | US20110108276 Apparatus and method for creating pressure pulses in a wellbore |
| 05/12/2011 | US20110108275 Wellhead isolation protection sleeve |
| 05/12/2011 | US20110108273 Method and apparatus for in situ extraction of bitumen or very heavy oil |
| 05/12/2011 | US20110108272 Downhole progressive pressurization actuated tool and method of using the same |
| 05/12/2011 | US20110108271 Enhancing hydrocarbon recovery |
| 05/12/2011 | US20110108270 Re-Use of Surfactant-Containing Fluids |
| 05/12/2011 | US20110108269 Systems and methods for producing oil and/or gas |
| 05/12/2011 | US20110108268 Method of treating bottom-hole formation zone |
| 05/12/2011 | US20110108266 Debris barrier for downhole tools |
| 05/12/2011 | US20110108263 Managing Pressurized Fluid in a Downhole Tool |
| 05/12/2011 | US20110107877 Remedial heap treatment |
| 05/12/2011 | CA2788984A1 High efficiency fluid pumping apparatus and method |
| 05/12/2011 | CA2778610A1 Systems and methods for initiating annular obstruction in a subsurface well |
| 05/12/2011 | CA2778609A1 Systems and methods for initiating annular obstruction in a subsurface well |
| 05/12/2011 | CA2778217A1 Device for applying an expandable skirt having application diameter control upon advance |
| 05/12/2011 | CA2719177A1 Gelled hydrocarbon system and method with dual-function viscosifier/breaker additive |
| 05/12/2011 | CA2715619A1 Steam drive direct contact steam generation |
| 05/11/2011 | EP2320025A1 Improvements in and relating to oil well perforators |
| 05/11/2011 | EP2318654A2 High rate stimulation method for deep, large bore completions |
| 05/11/2011 | EP2318653A2 Method and system for jointly producing and processing hydrocarbons from natural gas hydrate and conventional hydrocarbon reservoirs |
| 05/11/2011 | EP2318652A2 Using heat from produced fluids of oil and gas operations to produce energy |
| 05/11/2011 | EP2318651A1 Systems and methods for producing oil and/or gas |
| 05/11/2011 | EP2318650A2 Completion assembly |
| 05/11/2011 | EP2318649A1 Installation for the extraction of fluid from an expanse of water, and associated method |
| 05/11/2011 | EP2318648A1 Systems and methods for producing oil and/or gas |
| 05/11/2011 | EP2318647A1 Systems and methods for producing oil and/or gas |
| 05/11/2011 | EP2318470A1 Reversible peptide surfactants for oilfield applications |
| 05/11/2011 | EP2209966B1 Method of radially expanding a tubular element |
| 05/11/2011 | CN201826827U Modular underground three-phase separator |
| 05/11/2011 | CN201826826U Device for balancing and controlling pumping and injection of high confined water head in in-situ leaching uranium mining |
| 05/11/2011 | CN201826825U Energy-saving water jacket furnace |
| 05/11/2011 | CN201826824U Horizontal well integration and diversion water distributing device |
| 05/11/2011 | CN201826823U Skidded pressure flow dual-control moving water injection device |
| 05/11/2011 | CN201826822U Intensive water distributor |
| 05/11/2011 | CN201826821U Two-stage sand control screen pipe for oil gas mining |
| 05/11/2011 | CN201826820U Sand-control filter for oil production |
| 05/11/2011 | CN201826819U Framework casting type balance block for walking beam pumping unit |
| 05/11/2011 | CN201826818U Water draining and gas producing device special for screw pump of coal bed gas |
| 05/11/2011 | CN201826817U Long-distance protective device of oil field equipment |
| 05/11/2011 | CN201826816U Integral machine frame upright post for oil pumping unit |
| 05/11/2011 | CN201826815U Oil extractor for super-deep well |
| 05/11/2011 | CN201826814U Chain reciprocating mechanism of oil pumping unit |
| 05/11/2011 | CN201826813U Long-stroke energy-saving pumping unit |
| 05/11/2011 | CN201826812U Torque-balanced direct-drive pumping unit |
| 05/11/2011 | CN201826808U Low-shearing flow control valve |
| 05/11/2011 | CN201826783U Ground operation vehicle for continuous pipes |
| 05/11/2011 | CN201826767U Tailor-made four-way of closed circulation heating device of double hollow sucker rod of shaft |
| 05/11/2011 | CN102057132A Gas injection control devices and methods of operation thereof |
| 05/11/2011 | CN102057131A Collection and lift modules for use in a wellbore |
| 05/11/2011 | CN102056953A Novel method for the treatment of rock formations and novel polyampholytes |
| 05/11/2011 | CN102052071A Frustum cylinder-shaped near wellbore zone shear simulation device with sand prevention compacted sand bodies |