Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 34 - Valve arrangements for boreholes or wells
Patents for E21B 34 - Valve arrangements for boreholes or wells (14,685)
12/2014
12/24/2014CN204040984U 气动井口截断装置 Wellhead pneumatic shutoff device
12/24/2014CN104246119A 绕过流动控制装置的设备、系统和方法 Bypass device flow control device, the system and method
12/24/2014CN104246118A 流动控制装置的设备、系统和方法 Flow control means apparatus, systems and methods
12/24/2014CN104234683A 一种变径机构 One kind of adjustable mechanism
12/24/2014CN104234662A 一种可变径滑套开关 One kind can switch adjustable sleeve
12/24/2014CN104234661A 一种一球多开式滑套开关 More than one kind of an open ball sleeve switch
12/23/2014US8915300 Valve for hydraulic fracturing through cement outside casing
12/18/2014US20140367116 Ball Check Valve Integration to ICD
12/17/2014CN204024622U 水平井固井用可开关压裂滑套 Horizontal well cementing can switch fracturing sleeve
12/17/2014CN204024614U 防反吐桥式偏心配水器 Anti-anti-spit bridge eccentric water
12/17/2014CN204024594U 水平井固井用可开关压裂滑套施工管串 Horizontal well cementing construction tube sleeve fracturing can switch string
12/17/2014CN204024593U 剪断式泵下泄油装置 Cut pump discharged oil installations
12/17/2014CN204024592U 固井用井下碰压关井阀 Cementing downhole shut-in valve stopper
12/17/2014CN204024591U 水平井套压开启反循环阀 Horizontal well casing pressure reverse circulation valve open
12/17/2014CN204024590U 配注阀及使用该配注阀的抽油管柱 Distribution and use of the injection valve with injection valve, pump tubing string
12/17/2014CN204024589U 球驱动滑套式泄油器 Ball drive slip-bleeder
12/17/2014CN204024588U 一种适用于连续循环装置作业的地面管汇结构 A suitable device for the continuous operation of ground loop manifold structure
12/17/2014CN204024587U 井口油管泄压阀 Wellhead tubing pressure relief valve
12/17/2014CN204024586U 抽油机井井口防憋压装置 Anti-pumping wellhead choke pressure device
12/17/2014CN204024585U 一种抽油机井口放空连接装置 One kind of venting pumping wellhead connection device
12/17/2014CN204024584U 泄压堵头 Relief plug
12/17/2014CN204024583U 磁化式油嘴 Magnetization Injectors
12/17/2014CN204024568U 注水井油套封堵装置 Oil injection well plugging device sets
12/17/2014CN204024563U 一种带有清蜡装置的井口流程 A wellhead flow device with wax
12/17/2014CN104213889A 一种缓冲器zyq型一抽油井井口增油装置 One kind of buffer zyq type a means of increasing oil pumping wellhead
12/17/2014CN104213872A 一种稠油井井下套压放气阀及方法 One kind of heavy oil downhole casing pressure release valve and method
12/17/2014CN104213871A 一种稠油水平井井下套压放气阀及调压方法 One kind of heavy oil horizontal well downhole casing pressure release valve and regulator method
12/17/2014CN104213863A 注水井油套封堵装置 Oil injection well plugging device sets
12/16/2014US8910717 Frangible pressure control plug, actuatable tool including the plug, and method thereof
12/16/2014US8910716 Apparatus and method for controlling fluid flow from a formation
12/11/2014US20140360735 Geothermal integrated expansion spool assembly
12/10/2014CN204002744U 一种套管固井分段压裂控制阀 One kind of staged fracturing control valve casing cementing
12/10/2014CN204002702U 一种反向开启的方钻杆防溅阀 An inverse valve open kelly splash
12/10/2014CN204002701U 压控式测试阀 VCO type test valve
12/10/2014CN204002700U 油气井固井压差滑套 Oil and gas well cementing pressure sleeve
12/10/2014CN204002699U 油气井固井投球滑套 Oil and gas well cementing pitching sleeve
12/10/2014CN204002698U 箭式防堵阀 Arrow attempts to prevent the valve
12/10/2014CN204002697U 用于防漏失阀的开关工具 Switch tool for leak valve failure
12/10/2014CN204002696U 一种全智能完井装置 A fully intelligent completions
12/10/2014CN204002695U 井下旋板开关装置 Downhole rotary plate switch device
12/10/2014CN204002694U 新型总成式井下防喷泄油器 The new assembly downhole BOP bleeder
12/10/2014CN204002693U 海上采油用法兰盘 Offshore with flange
12/10/2014CN204002692U 一种用于溢流关井的井口自动卸压装置 An overflow wellhead shut-in automatic pressure relief device
12/10/2014CN204002691U 一种抽油机井井口取样阀防盗盒 One kind of pumping wellhead sampling valve theft case
12/10/2014CN204002690U 一种清砂器管道的阀门 A cleaning sand pipeline valves
12/10/2014CN204002680U 一种全通径球座 An all bore tee
12/10/2014CN104204403A 可调节流动控制装置 Adjustable flow control means
12/10/2014CN104204402A 可选择性地腐蚀的井下物品及使用方法 Underground contents and use selectively corrosion
12/10/2014CN104204401A 刮擦塞元件以及使油井环境增产的方法 Scratch plug element and method of making the well stimulation environment
12/10/2014CN104196492A 一种带压拖动井下封堵阀 A tape sealing valve downhole pressure drag
12/10/2014CN104196491A 油水井液压助力油套工艺联通装置 Oil wells, oil hydraulic power unit sets the process Unicom
12/10/2014CN104196490A 一种用于溢流关井的井口自动卸压装置及其方法 An overflow wellhead shut-in pressure relief device and method for automatic
12/10/2014CN104196483A 气动井口截断装置 Wellhead pneumatic shutoff device
12/10/2014CN102472086B 限流器 Current Limiter
12/09/2014US8905145 Remote and manual actuated well tool
12/09/2014US8905144 Variable flow resistance system with circulation inducing structure therein to variably resist flow in a subterranean well
12/09/2014US8905141 Subsea operating valve connectable to low pressure recipient
12/09/2014US8905140 Downhole deployment valves
12/09/2014US8905139 Blapper valve tools and related methods
12/09/2014US8905125 Abrasive perforator with fluid bypass
12/04/2014US20140353039 Core barrel valve assembly
12/04/2014US20140353032 Expandable apparatus and related methods
12/04/2014US20140352974 Reactive choke for automatic wellbore fluid management and methods of using same
12/04/2014US20140352971 Solenoid-operated valve
12/04/2014US20140352942 Annular barrier with a self-actuated device
12/02/2014US8899335 Downhole tool
12/02/2014US8899334 System and method for servicing a wellbore
12/02/2014US8899316 Downhole isolation tool having a ported sliding sleeve
12/02/2014US8899269 Manifold
11/2014
11/27/2014US20140345941 Connection maker
11/27/2014US20140345877 Selectively degradable passage restriction
11/27/2014US20140345876 Inflow control solutions for wellbores
11/27/2014US20140345705 Flow Activated Circulating Valve
11/25/2014US8893811 Responsively activated wellbore stimulation assemblies and methods of using the same
11/25/2014US8893810 Arrangement of isolation sleeve and cluster sleeves having pressure chambers
11/25/2014US8893806 Exercising a well tool
11/25/2014US8893805 Bypass valve for use in well bores
11/25/2014US8893804 Alternating flow resistance increases and decreases for propagating pressure pulses in a subterranean well
11/25/2014US8893803 Safety relief valve system for use with subsea piping and process for preventing overpressures from affecting the subsea piping
11/25/2014US8893799 Subsurface safety valve including safe additive injection
11/25/2014US8893798 Barrier valve hydraulic operator with compound valve opening force feature
11/25/2014US8893797 Self-contained cut-off device
11/25/2014US8893796 Wellbore valve assembly
11/25/2014US8893794 Integrated zonal contact and intelligent completion system
11/25/2014US8893787 Operation of casing valves system for selective well stimulation and control
11/25/2014US8893783 Tubing conveyed multiple zone integrated intelligent well completion
11/25/2014US8893776 Downhole ported shifting sleeve
11/20/2014US20140338922 Electric Control Multi-Position ICD
11/18/2014US8887811 Downhole tool with expandable seat
11/13/2014US20140332277 Drill string check valve
11/13/2014US20140332232 Annular barrier with an expansion detection device
11/13/2014US20140332231 Downhole actuation ball, methods and apparatus
11/13/2014US20140332229 Interventionless Adjustable Flow Control Device Using Inflatables
11/13/2014US20140332226 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
11/13/2014US20140332224 Dual barrier open water completion
11/13/2014US20140332222 Connection system for subsea flow interface equipment
11/11/2014US8881827 Wellhead having an integrated safety valve and method of making same
11/11/2014US8881825 Barrier side pocket mandrel and gas life valve
11/11/2014US8881824 Mechanically actuated device positioned below mechanically actuated release assembly utilizing J-slot device
11/06/2014US20140326459 Sealable wellsite valve and method of using same
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