E21B 34 - Valve arrangements for boreholes or wells

Patents for E21B 34 - Valve arrangements for boreholes or wells (14,685)
08/2011
08/17/2011	CN102155150A Crushing mechanism with gas inlet pipe
08/17/2011	CN101657603B Drilling head for reborinq a stuck valve
08/16/2011	US7997344 Multi-function indicating tool
08/16/2011	US7997340 Permanent downhole deployment of optical sensors
08/11/2011	WO2011097632A1 Downhole Tool With Expandable Seat
08/11/2011	WO2011097625A1 Valving system and method of selectively halting injection of chemicals
08/11/2011	WO2011097341A1 Submersible pump for operation in sandy environments, diffuser assembly, and related methods
08/11/2011	WO2011095935A2 Methods of use for a positive displacement pump having an externally assisted valve
08/11/2011	WO2011095512A2 Flow control device and flow control method
08/11/2011	WO2011062867A3 Subsurface safety valve and method of actuation
08/11/2011	US20110192649 Flow diverter ring for mud saver valves
08/11/2011	US20110192613 Cluster Opening Sleeves for Wellbore
08/11/2011	US20110192612 Controller for a Downhole Tool
08/11/2011	US20110192608 Self centering downhole float valve for vertical and lateral wells
08/11/2011	US20110192607 Downhole Tool With Expandable Seat
08/11/2011	US20110192590 Gas assisted lift system
08/11/2011	CA2822888A1 Downhole tool with expandable seat
08/11/2011	CA2788688A1 Submersible pump for operation in sandy environments, diffuser assembly, and related methods
08/11/2011	CA2788585A1 Flow control device and flow control method
08/11/2011	CA2787687A1 Methods of use for a positive displacement pump having an externally assisted valve
08/11/2011	CA2731511A1 Expandable ball seat
08/10/2011	CN201924918U 油水井套压取压装置 Oil wells set pressure to take pressure device
08/10/2011	CN201924905U Differential pressure open sliding sleeve for horizontal well fracturing
08/10/2011	CN201924889U 可调气液射引器 Adjustable-liquid shot lead is
08/10/2011	CN201924887U 分体式控制系统的单井控制子模块 Well Control sub-module split control system
08/10/2011	CN201924886U Selective well completion switching tool of oil and gas well with controllable applied force
08/10/2011	CN201924885U 一种可投杆和管内加压打开的测试循环阀 One kind can be cast rod and tube pressure testing cycle valve open
08/10/2011	CN201924884U 一种大通径水平井压裂完井用开启滑套及其一体化管柱 One kind of large diameter horizontal well fracturing completion and integration with open sleeve column
08/10/2011	CN201924883U 抽油井口转换阀 Pumping oil port switching valve
08/10/2011	CN201924882U 防喷控制阀 BOP control valve
08/10/2011	CN201924881U 一种多通道管路自动切换装置 A multi-channel pipeline automatic switching devices
08/10/2011	CN201924880U 防脱旁通阀 Anti-off bypass valve
08/09/2011	US7992643 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
08/09/2011	US7992633 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
08/09/2011	US7992434 Christmas tree with internally positioned flowmeter
08/09/2011	CA2629441C Valve within a control line
08/09/2011	CA2483058C Flying valve and well production method
08/09/2011	CA2480228C Gas operated automatic, liquid pumping system for wells
08/04/2011	WO2011094084A2 Control system for a surface controlled subsurface safety valve
08/04/2011	WO2011093902A1 Method and apparatus for sealing an annulus of a wellbore
08/04/2011	WO2011092660A2 Mechanical tube wave sources and methods of use for liquid filled boreholes
08/04/2011	WO2011071670A3 Multi-position tool actuation system
08/04/2011	WO2011062824A3 Subsurface safety valve and method of actuation
08/04/2011	WO2011062784A3 Anchor/shifting tool with sequential shift then release functionality
08/04/2011	WO2011060358A3 Apparatus and method for activating and deactivating a downhole tool
08/04/2011	WO2011060005A3 System and method for well control
08/04/2011	WO2011059743A3 Tubular actuator, system and method
08/04/2011	WO2011047163A3 Flapper valve and method
08/04/2011	WO2010144593A8 Dual acting rod piston control system
08/04/2011	US20110186304 T-Frac Zone Test Tool and System
08/04/2011	US20110186303 Control System for a Surface Controlled Subsurface Safety Valve
08/04/2011	US20110186300 Method and apparatus for autonomous downhole fluid selection with pathway dependent resistance system
08/04/2011	CA2788553A1 Method and apparatus for sealing an annulus of a wellbore
08/04/2011	CA2787682A1 Mechanical tube wave sources and methods of use for liquid filled boreholes
08/04/2011	CA2786483A1 A tool for installing units in a well
08/04/2011	CA2721496A1 Methods and systems for orienting in a bore
08/03/2011	EP2351906A2 Retrofit wellbore fluid injection system
08/03/2011	EP2351905A1 Chemical-injection management system
08/03/2011	EP2122121B1 Valve seat assembly, downhole tool and methods
08/03/2011	CN201915931U 水平井压裂专用座封球座 Horizontal well fracturing special seat seal tee
08/03/2011	CN201915930U 一种热采专用三通 A heat-recoverable special tee
08/03/2011	CN201915922U 海洋油田并列双管细分注气管柱 Marine Oilfield segments parallel twin-tube gas injection string
08/03/2011	CN201915903U 具有j型槽的多级流量控制阀 Multi-level flow control valve has a j-groove
08/03/2011	CN201915902U 气动多级笼套节流阀 Aerodynamic multi-level cage sets throttle
08/03/2011	CN201915901U 新型快换式凡尔单流阀 The new quick-change Seoul where a single valve
08/03/2011	CN201915891U Overflow prevention structure for underground drilling construction of coal mine
08/03/2011	CN201915881U 限位定芯扶正胶皮闸门 Limit fixed core righting rubber gate
08/03/2011	CN201915875U 一种油套管主阀的不丢手换阀装置 An oil casing of the main valve is not lost hand for valve device
08/03/2011	CN201915838U 孔内水压定向器 Hole hydraulic directional control
08/03/2011	CN101265792B Hydraulic switch sliding bush
08/02/2011	US7987914 Controlling actuation of tools in a wellbore with a phase change material
08/02/2011	US7987905 One trip cemented expandable monobore liner system and method
07/2011
07/28/2011	WO2011091140A2 Ball drop module
07/28/2011	WO2011088548A1 Cage valve with flow trim for reduced fracturing
07/28/2011	WO2011059756A3 Hydraulic control system minitoring apparatus and method
07/28/2011	WO2011044483A3 Downhole tool actuation devices and methods
07/28/2011	WO2011043953A3 Multi-stage pressure equalization valve assembly of subterranean valves
07/28/2011	US20110180270 Position retention mechanism for maintaining a counter mechanism in an activated position
07/28/2011	US20110180269 Down hole valve device
07/28/2011	US20110180268 Openable Port and Method
07/28/2011	US20110180252 Casing mandrel for facilitating well completion, re-completion or workover
07/28/2011	CA2787408A1 Cage valve with flow trim for reduced fracturing
07/27/2011	EP2347195A1 Bi-directional valve system for an aquifer thermal energy storage, heating and cooling system
07/27/2011	EP2347091A1 Downhole tool unit
07/27/2011	EP2347089A1 Disposal of well control fluids
07/27/2011	EP2347088A2 Down hole valve device
07/27/2011	EP1534920B1 Bulged single-hinged scored rupture disc having a non-circular varying depth score line
07/27/2011	CN201908641U Hydraulic impact compression fracture plug removing device
07/27/2011	CN201908639U Valving claw locking ball injection type sand blasting sliding sleeve for horizontal well fracturing
07/27/2011	CN201908623U Ball injection opening self-locking sliding sleeve
07/27/2011	CN201908622U Valve locking device
07/27/2011	CN201908621U Quick oil drainer
07/27/2011	CN201908620U Hydraulic control sliding-sleeve switch
07/27/2011	CN201908619U Anti-sulfur gas lift valve
07/27/2011	CN201908618U Kill manifold for oil and gas well
07/27/2011	CN201908617U Floating torsion transmitter
07/27/2011	CN201908613U Opening valve type expansion packer
07/27/2011	CN102134980A Device for sealing plate valve through pretightening
07/26/2011	US7986245 Measurement while drilling mud pulser control valve mechanism
07/26/2011	US7984765 System and method for well intervention

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