Patents for E21B 34 - Valve arrangements for boreholes or wells (14,685)
12/2010
12/15/2010CN101915069A Sulfur-resistant oil and gas extraction wellhead device provided with structure for replacing No.1 main control valve
12/14/2010US7849925 System for completing water injector wells
12/14/2010US7849917 Marginal oil extraction device
12/14/2010CA2628766C Downhole array and assembly thereof
12/14/2010CA2591849C Well head valve insulator
12/14/2010CA2583443C Downhole safety valve apparatus and method
12/14/2010CA2576426C Expandable injector pipe
12/14/2010CA2552294C Methods and apparatus for optimizing well production
12/09/2010WO2010141795A2 Subsea control module with interchangeable segments
12/09/2010WO2010141722A2 Coated spring and method of making the same
12/09/2010WO2010119010A3 Downhole valve tool and method of use
12/09/2010US20100307769 Fluid control modules for use with downhole tools
12/09/2010US20100307758 Dual flapper safety valve
12/09/2010CA2764062A1 Coated spring and method of making the same
12/08/2010EP2258921A1 Actuator for well-haed valve or other similar applications and system incorporating same
12/08/2010EP2132406B1 Ball seat assembly and method of controlling fluid flow through a hollow body
12/08/2010CN201666378U Air control valve
12/08/2010CN201666143U Energy-saving flat valve
12/08/2010CN201666138U Water-injection gas-exhaustion well sealing device of coal bed gas well
12/08/2010CN101910550A Multi-position valves for fracturing and sand control associated completion methods
12/08/2010CN101906948A Layer mining converter of defueling pump
12/07/2010US7845433 Device and procedure for the insertion of a new drilling string-element into the drill-string of a well
12/07/2010US7845415 Direct connecting downhole control system
12/07/2010US7845410 Openhole perforating
12/02/2010WO2010138413A2 Wellbore shut off valve with hydraulic actuator system
12/02/2010WO2010018366A3 A controller for a downhole tool
12/02/2010US20100300703 Pressure actuable downhole tool and a method for actuating the same
12/02/2010US20100300702 Wellbore Shut Off Valve with Hydraulic Actuator System
12/02/2010US20100300696 System and Method for Monitoring Subsea Valves
12/02/2010US20100300689 Sealing assembly
12/02/2010US20100300684 Continuous downhole scale monitoring and inhibition system
12/02/2010US20100300672 Time and efficiency manifold
12/01/2010EP2256290A1 Casing shoes and methods of reverse-circulation cementing of casing
12/01/2010EP2256287A1 Casing shoes and methods of reverse-circulation cementing of casing
12/01/2010EP2255115A1 Gate valve actuator and method
12/01/2010EP2255064A2 Multi-cycle single line switch
12/01/2010CN201661273U Solar electric control pneumatic safety cut-off system
12/01/2010CN201661272U Automatic blowout well killing control device
12/01/2010CN201661271U Exhaust device of air drilling tool
11/2010
11/30/2010US7841416 Method and apparatus for retaining a soft seal in an integrated flapper mount, hard seat, spring housing surface controlled subsurface safety valve
11/30/2010US7841412 Multi-purpose pressure operated downhole valve
11/30/2010CA2618134C Triple valve blow out preventer
11/25/2010US20100294510 Dissolvable downhole tool, method of making and using
11/25/2010US20100294509 Flow-actuated actuator and method
11/25/2010US20100294508 Flow-actuated actuator and method
11/25/2010US20100294506 Systems and methods for deliquifying a commingled well using natural well pressure
11/25/2010US20100294502 Magnetic Flapper Shock Absorber
11/25/2010US20100294495 Open Hole Completion Apparatus and Method for Use of Same
11/24/2010EP2035655B1 Hydraulic metering valve for operation of downhole tools
11/24/2010CN201650277U Pressure regulating safety valve puller
11/24/2010CN201650213U Check valve for acquiring gas
11/24/2010CN201650212U Oil-field laminated high-pressure adjustable high-resolution water injection valve
11/24/2010CN201650211U Multifunctional cross
11/23/2010US7836961 Integrated hydraulic setting and hydrostatic setting mechanism
11/23/2010CA2655469C Downhole ball dropping apparatus
11/23/2010CA2627822C Top hold down rod pump with hydraulically activated drain and method of use
11/23/2010CA2614645C Inflow control device with passive shut-off feature
11/23/2010CA2466685C Liner hanger with sliding sleeve valve
11/18/2010WO2010112810A3 System and method for servicing a wellbore
11/18/2010WO2010101752A3 Subterranean screen with varying resistance to flow
11/18/2010WO2010096255A3 Screen flow equalization system
11/18/2010WO2010085667A3 Bidirectional sealing mechanically shifted ball valve for downhole use
11/18/2010US20100288557 Expandable reamer for subterranean boreholes and methods of use
11/18/2010US20100288502 Shear Open Valve
11/17/2010EP2251525A1 Methods and devices for treating multiple-interval well bores
11/17/2010EP2250338A1 Actuator device for downhole tools
11/17/2010CN201635736U Well mouth sampling valve antitheft device
11/17/2010CN201635711U Well mouth casing gas release device
11/17/2010CN201635694U Well mouth gas antitheft device
11/17/2010CN201635693U Water detection and release drilling diversion gate valve type orifice device
11/16/2010US7832486 Flapper gas lift valve
11/16/2010US7832485 Riserless deployment system
11/16/2010US7832472 Hydraulic open hole packer
11/11/2010WO2010129631A1 Multiple-positioning mechanical shifting system and method
11/11/2010WO2010127457A1 Sliding sleeve sub and method and apparatus for wellbore fluid treatment
11/11/2010US20100282476 Production tubing drain valve
11/11/2010US20100282475 Multiple-Positioning Mechanical Shifting System and Method
11/11/2010US20100282473 Aerator for a well water pumping system
11/11/2010US20100282472 Dual Action Jet Bushing
11/11/2010CA2760107A1 Sliding sleeve sub and method and apparatus for wellbore fluid treatment
11/10/2010EP2248992A2 At-surface tool for pulsed injection of liquids
11/10/2010EP2248991A2 Remotely operated drill pipe valve
11/10/2010CN201627989U Self-locking type high-voltage one-way valve
11/10/2010CN201627568U Valve plate type hydraulic internal blowout preventer
11/10/2010CN201627567U Vertical choke-kill manifold for oceanic use
11/10/2010CN201627566U Non-return type oil nozzle sleeve
11/10/2010CN201627565U Choke seat
11/10/2010CN201627561U Two-in-one ocean wellhead device with safety valve
11/10/2010CN201627560U Device for fracturing wellhead
11/10/2010CN201627559U Integral electric pump wellhead device with safety valve
11/10/2010CN201627558U Valve for mounting oil-extraction well head flange
11/09/2010US7828065 Apparatus and method of stabilizing a flow along a wellbore
11/09/2010CA2592839C Well production optimizing system
11/09/2010CA2436248C Multiple interventionless actuated downhole valve and method
11/04/2010WO2010126988A2 Valve system for drilling systems
11/04/2010WO2010124371A1 Selective fracturing tool
11/04/2010US20100276199 Expandable reamer apparatus
11/04/2010US20100276155 System and method for subsea control and monitoring
11/04/2010US20100276154 Flow-actuated actuator and method
11/04/2010US20100276153 Remotely Operated Drill Pipe Valve
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