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)
11/2011
11/09/2011	CN202031552U Wing slot-shaped spiral welded mesh pipe
11/09/2011	CN202031551U Power and control system of cementing and fracturing equipment
11/09/2011	CN202031550U Non-beam pumping unit
11/09/2011	CN202031549U Pneumatic-balance hydraulic pumping unit for offshore platform
11/09/2011	CN202031548U Device for recovering gas in wellhead and well group casing of oilfield
11/09/2011	CN202031547U Wellhead hydraulic signal generating device
11/09/2011	CN202031546U Combined type frame for W type tractive pumping unit
11/09/2011	CN202031529U Static-pressure submerged blanking plug
11/09/2011	CN202031493U Thermal variable stress two-way compensator
11/09/2011	CN202030721U Offshore oil gas floating air liquefying apparatus applied in water area of South China Sea
11/09/2011	CN1756892B Propped fracture with high effective surface area
11/09/2011	CN102235164A Double-flow automatic measurement and regulation instrument for water injection well
11/09/2011	CN102235163A Oil extraction method based on joint injection of hydrogen and carbon monoxide
11/09/2011	CN102235162A Method and apparatus for controlling fluid flow using moveable flow diverter assembly
11/09/2011	CN102235161A Belt tensioning mechanism of oil well pumping unit
11/09/2011	CN102235160A Dual-well pumping unit
11/09/2011	CN102235159A Hydraulic energy-saving multi-well pumping unit
11/09/2011	CN102234163A System of heating sewage by using circulating fluidized bed boiler
11/09/2011	CN101343994B Oil, gas, water and methanol four-phase separator
11/09/2011	CN101294488B Renewedly entrance guiding device for injection string and feeding-discharging tool
11/09/2011	CN101294487B Renewedly entrance guiding device for injection string
11/09/2011	CN101265897B Downhole production and injection pump system
11/09/2011	CN101245697B Oil pumping machine
11/09/2011	CN101187304B High reliability double well pumping machine
11/08/2011	US8053396 Surfactant mixtures for tertiary oil recovery
11/08/2011	US8051912 Armored flat cable signalling and instrument power acquisition
11/08/2011	US8051911 Method of fracturing a subterranean formation at optimized and pre-determined conditions
11/08/2011	US8051910 Methods of inferring flow in a wellbore
11/08/2011	US8051908 Biogenic fuel gas generation in geologic hydrocarbon deposits
11/08/2011	US8051907 Downhole separator
11/08/2011	CA2546335C Gravel pack crossover tool with single position multi-function capability
11/05/2011	CA2703276A1 Method for improving ore extraction
11/03/2011	WO2011137460A2 Machines, systems, computer-implemented methods, and computer program products to test and certify oil and gas equipment
11/03/2011	WO2011137196A1 System for providing uniform heating to subterranean formation for recovery of mineral deposits
11/03/2011	WO2011137074A1 Slurry outlet in a gravel packing assembly
11/03/2011	WO2011137053A1 Method of retrofitting subsea equipment with separation and boosting
11/03/2011	WO2011136679A1 Subterranean reservoir treatment method
11/03/2011	WO2011136678A1 Heterogeneous proppant placement
11/03/2011	WO2011135466A1 System and method for determining the effect of water-based additives on oil recovery
11/03/2011	WO2011135069A1 Pumping system
11/03/2011	WO2011134085A1 A continuous rod pump drive system
11/03/2011	WO2011134069A1 Apparatus and method for fracturing a well
11/03/2011	WO2011108005A3 A process for maximization and optimization of coal energy
11/03/2011	WO2011087673A3 Wireline-adjustable downhole flow control devices and methods for using same
11/03/2011	WO2010110676A3 Subsea cooler
11/03/2011	WO2010101828A3 Constant specific gravity heat minimization
11/03/2011	US20110266374 Slurry Outlet in a Gravel Packing Assembly
11/03/2011	US20110266007 Method of radially expanding a tubular element
11/03/2011	US20110266005 Continuous rod pump drive system
11/03/2011	US20110266004 Annular barrier and annular barrier system
11/03/2011	US20110266003 Subsea Control Module with Removable Section Having a Flat Connecting Face
11/03/2011	US20110266002 Subsea Control Module with Removable Section
11/03/2011	US20110265998 Method for hydraulic fracturing of a low permeability subterranean formation
11/03/2011	US20110265997 Viscosification and foaming of polyacrylamides
11/03/2011	US20110265995 Methods for using high strngth ceramic elements
11/03/2011	US20110265994 Systems and Methods For Hydraulic Barrier Formation To Improve Sweep Efficiency In Subterranean Oil Reservoirs
11/03/2011	US20110265993 Sand decanter
11/03/2011	US20110265992 Mechanical Mud Bucket and Method
11/03/2011	US20110265991 Processing hydrocarbon materials
11/03/2011	US20110265989 System for exchanging energy with a ground
11/03/2011	US20110265985 System and method for low damage gravel packing
11/03/2011	US20110265649 Device and Method for Remediating and Separating Gas Accumulations in Waterways
11/03/2011	CA2797821A1 Apparatus and method for fracturing a well
11/03/2011	CA2797536A1 System for providing uniform heating to subterranean formation for recovery of mineral deposits
11/03/2011	CA2796958A1 Pumping system
11/02/2011	EP2383432A1 Pumping system
11/02/2011	EP2383431A2 Sand control screen assembly having a surface-modified filter medium and method for making same
11/02/2011	EP2383430A2 Method and apparatus for controlling fluid flow using moveable flow diverter assembly
11/02/2011	EP2383425A2 Choke assembly
11/02/2011	EP2383424A2 Choke assembly
11/02/2011	EP2383423A2 Choke assembly
11/02/2011	EP2382372A2 Method and system for producing hydrocarbons from a hydrate reservoir using available waste heat
11/02/2011	EP2382371A2 Method and system for producing hydrocarbons from a hydrate reservoir using a sweep gas
11/02/2011	EP2382370A2 Method for disconnecting a device for transferring fluid between the bottom of an expanse of water and the surface and associated transfer device
11/02/2011	EP1856374B1 A composition and method for making a proppant
11/02/2011	EP1565644B1 Well treating process
11/02/2011	CN202026164U Switch device for power supply of oil pumping unit
11/02/2011	CN202023553U Small-displacement turbine flow gauging nipple
11/02/2011	CN202023551U Testing and adjusting device for water injection well
11/02/2011	CN202023548U Oilfield fracturing nonmetal special hose
11/02/2011	CN202023547U Coal mine underground pulsed hydraulic fracturing equipment
11/02/2011	CN202023546U Annular fracturing injection four-way joint
11/02/2011	CN202023545U Water adjustor for water injection well
11/02/2011	CN202023544U Automatic and continuous water injection device for well repairing
11/02/2011	CN202023543U Buckle-withdrawing preventing structure for perforating gun string
11/02/2011	CN202023542U Stainless steel wire winding sieve pipe of sand-prevention pipe
11/02/2011	CN202023541U Oil pumping unit without walking beam
11/02/2011	CN202023540U Maintaining operating platform for oil pumping machine
11/02/2011	CN202023539U Novel fixed brake clamp for external holding brake of oil pumping unit
11/02/2011	CN202023533U Antitheft valve for oil pumping unit
11/02/2011	CN102232139A Wellhead valve system for adjusting the flow with integrated multiphase flow rate measuring ability
11/02/2011	CN102230612A High-dryness steam injection boiler and method
11/02/2011	CN102230377A Multifunctional gas lifting strata testing string
11/02/2011	CN102230372A Thermal recovery technology of multielement thermal fluid of thickened oil well
11/02/2011	CN102230371A New continuous production stabilization and efficient interactive blockage removal method for high water later oil reservoir of oil field
11/02/2011	CN102230370A Built-in booster fracture bomb
11/02/2011	CN102230369A Device for collecting and purifying natural gas hydrates of seabed workstations
11/02/2011	CN102230368A Slide block type positive-torque oil pumping machine
11/02/2011	CN101240699B Oilfield oil pumping machine energy-saving method and startup wheel
11/01/2011	US8048827 Kinetic gas hydrate inhibitors in completion fluids

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