| 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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| 02/10/2011 | US20110030960 Methods and apparatus for a downhole tool |
| 02/10/2011 | US20110030959 Aqueous Solution For Managing Microbes In Oil And Gas Production And Method For Their Production |
| 02/10/2011 | US20110030958 Method for treating subterranean formation with degradable material |
| 02/10/2011 | US20110030957 Carbon capture and storage |
| 02/10/2011 | US20110030956 Altering the interface of hydrocarbon-coated surfaces |
| 02/10/2011 | US20110030953 Gelled liquid hydrocarbon treatment fluids and their associated methods of use |
| 02/10/2011 | US20110030952 Methods of gravel packing long interval wells |
| 02/10/2011 | US20110030950 Methods for Controlling Particulate Flowback and Migration in a Subterranean Formation |
| 02/10/2011 | US20110030949 Methods for Maintaining Conductivity of Proppant Pack |
| 02/10/2011 | US20110030948 Methods for Forming a Permeable and Stable Mass in a Subterranean Formation |
| 02/10/2011 | US20110030947 Stimulating subterranean zones |
| 02/10/2011 | US20110030946 Method and system of transmitting electromagnetic waves from a wellbore |
| 02/10/2011 | CA2770179A1 Stuffing box assembly |
| 02/10/2011 | CA2769774A1 Multiple well treatment fluid distribution and control system and method |
| 02/10/2011 | CA2769699A1 Methods of gravel packing long interval wells |
| 02/09/2011 | EP2282183A1 Level measurement systems |
| 02/09/2011 | EP2282004A1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 02/09/2011 | EP2282003A2 Perforating gun assembly and method for controlling wellbore pressure regimes during perforating |
| 02/09/2011 | EP2282002A2 Method and apparatus for stimulation of multiple formation intervals |
| 02/09/2011 | EP2281999A2 BOP and separator combination |
| 02/09/2011 | EP2281147A1 Vitiated steam generator |
| 02/09/2011 | EP1962986B1 A separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a fluid including water, oil, and gas |
| 02/09/2011 | CN201741000U Intelligent water injection well supervising device |
| 02/09/2011 | CN201740009U Steam injecting boiler |
| 02/09/2011 | CN201739712U Pumping unit adjusting device |
| 02/09/2011 | CN201739147U Rodless oil well lifting system |
| 02/09/2011 | CN201739145U Oil well pump with oil-water separation function |
| 02/09/2011 | CN201738912U Wellhead gravity flow type purification and liquid-removal device |
| 02/09/2011 | CN201738911U Polymer solution shearing simulation equipment |
| 02/09/2011 | CN201738910U Ultrasonic wave flow adjustor driven by eccentric flexible shaft |
| 02/09/2011 | CN201738909U Skid-mounted intelligent remote water injecting device |
| 02/09/2011 | CN201738908U Water distributing device with ultrasonic measurement and control |
| 02/09/2011 | CN201738907U Blocking device of water injection well profile controlling water distributor |
| 02/09/2011 | CN201738906U Process tube string for thinning, viscosity-reducing and lifting thickened oil |
| 02/09/2011 | CN201738905U Layered oil extraction device of oil well |
| 02/09/2011 | CN201738904U Perforating and production pipe column for oil field gas wells |
| 02/09/2011 | CN201738903U Cleanable long-service life sand control screen pipe |
| 02/09/2011 | CN201738902U Horizontal well circulating gravel packing sand retention device |
| 02/09/2011 | CN201738901U Balance weight adjusting device of oil pumping unit |
| 02/09/2011 | CN201738900U Speed-reducing adjusting device of oil pumping machine |
| 02/09/2011 | CN201738899U Bending walking beam oil pumping unit |
| 02/09/2011 | CN201738898U Displacement torque conversion composite balancing oil pumping unit |
| 02/09/2011 | CN201738897U Pressure and output self-adaptive measuring and controlling system of electric pump production well |
| 02/09/2011 | CN201738896U Long-stroke roller oil pumping unit |
| 02/09/2011 | CN201738895U Impurity-preventing fixed valve for oil field |
| 02/09/2011 | CN201738894U Connecting rod regulator of beam-pumping unit |
| 02/09/2011 | CN201738893U Electrical balance-adjustable oil pump |
| 02/09/2011 | CN201738892U Adjustable balancing device for pumping unit |
| 02/09/2011 | CN201738891U Safety lock of brake device of oil pumping machine |
| 02/09/2011 | CN201738890U Oil pumping unit with data acquisition function |
| 02/09/2011 | CN201738889U Long-stroke belt tower type oil pumping unit |
| 02/09/2011 | CN201738888U Walking beam type twin-well oil extractor |
| 02/09/2011 | CN201738887U Long-stroke belt winding type beam pumping unit |
| 02/09/2011 | CN201738886U Long-stroke dual-well tower type oil sucking machine |
| 02/09/2011 | CN201738885U Double-well pumping unit |
| 02/09/2011 | CN201738884U Walking-beam type pumping unit for double-well |
| 02/09/2011 | CN201738883U Wind oil-pumping device |
| 02/09/2011 | CN201738882U Beam pumping unit directly driven by rotary motor |
| 02/09/2011 | CN201738881U Vehicle-mounted mobile oil extracting system |
| 02/09/2011 | CN201738877U Vertical cementing manifold used for ocean |
| 02/09/2011 | CN201738873U Device integrating bridge plug and perforation used for continuous oil pipe operation |
| 02/09/2011 | CN201738868U Double-group sealed high-pressure water-injection packer |
| 02/09/2011 | CN201738842U Rope suspender with load transmitter |
| 02/09/2011 | CN201738822U String for upper horizontal well cementation and lower screen pipe gravel pack completion |
| 02/09/2011 | CN1831341B Subsea pumping system for hydrocarbon compound fluid, method and subsea pump |
| 02/09/2011 | CN101970794A Methods for improving the productivity of oil producing wells |
| 02/09/2011 | CN101970787A Subsea drilling system and method for operating the drilling system |
| 02/09/2011 | CN101969260A Cylindrical submersible linear motor and submersible linear pumping unit |
| 02/09/2011 | CN101967967A Artificially resonant wave strengthened oil displacement dynamic simulation experimental device and experimental method |
| 02/09/2011 | CN101967966A Anti-sand burying salvaging single-rubber barrel downhole choke |
| 02/09/2011 | CN101967965A Motor direct-driven oil production method |
| 02/09/2011 | CN101463889B Non-circular gear transmission and its transmission mechanism |
| 02/09/2011 | CN101424167B Underground travel increasing apparatus for sucker rod |
| 02/08/2011 | US7884057 Quaternary ammonium compounds with two cationic sites connected through a linker; hydraulic fluids, demulsifiers, foamers, organoclays, thickeners, biocides, and oil field fluids. |
| 02/08/2011 | US7884056 star block polymers comprising core and macromolecular branches; for controlling formation of viscoelastic gels |
| 02/08/2011 | US7882896 Gas eduction tube for seabed caisson pump assembly |
| 02/08/2011 | US7882895 Method for impulse stimulation of oil and gas well production |
| 02/08/2011 | US7882894 Methods for completing and stimulating a well bore |
| 02/08/2011 | US7882893 Combined miscible drive for heavy oil production |
| 02/08/2011 | US7882794 Buoyancy device and method for stabilizing and controlling lowering or raising of a structure between the surface and the sea floor |
| 02/08/2011 | CA2625662C Methods and devices for treating multiple-interval well bores |
| 02/08/2011 | CA2621572C Bottomhole assembly and method for stimulating a well |
| 02/08/2011 | CA2609295C Methods of treating surfaces in subterranean formations |
| 02/08/2011 | CA2590207C Unsintered mesh sand control screen |
| 02/08/2011 | CA2556068C Delayed tackifying compositions and associated methods involving controlling particulate migration |
| 02/08/2011 | CA2522035C Multi seam coal bed/methane dewatering and depressurizing production system |
| 02/08/2011 | CA2508182C Wellbore evaluation system and method |
| 02/08/2011 | CA2500771C Method and system for removing fluid from a subterranean zone using an enlarged cavity |
| 02/07/2011 | CA2712397A1 Aqueous crosslinker slurry compositions and applications |
| 02/06/2011 | CA2712121A1 Subsurface nuclear measurement systems, methods and apparatus |
| 02/06/2011 | CA2710728A1 Systems and methods for automatic forward phasing determination in a downhole pump system |
| 02/04/2011 | CA2709048A1 Artificial lift and transfer pump |
| 02/03/2011 | WO2011014756A2 A method for recovering oil from an oil well |
| 02/03/2011 | WO2011014705A1 Method to enhance the production capacity of an oil well |
| 02/03/2011 | WO2011014634A2 Apparatus and method for controlling water in-flow into wellbores |
| 02/03/2011 | WO2011014604A2 Electric ballistic connection through a field joint |
| 02/03/2011 | WO2011014565A2 Liner expansion system with a recoverable shoe assembly |
| 02/03/2011 | WO2011014410A1 Composition and method for producing an ultra-lightweight ceramic proppant |
| 02/03/2011 | WO2011014376A2 Multi-zone screen isolation system with selective control |
| 02/03/2011 | WO2011014171A1 Well drilling methods with event detection |