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 33 - Sealing or packing boreholes or wells
Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
04/2012
04/11/2012CN202187738U 一种液压补偿自封封井器 A hydraulic compensation self-styled blowout preventer
04/11/2012CN202187737U High-pressure temperature resistant ventilation nozzle for well control
04/11/2012CN102410271A 一种深水防喷器控制阀 Deep water BOP control valve
04/11/2012CN102409997A 竖井揭煤与瓦斯突出煤层帷幕注浆防突方法 Shaft uncovering coal and gas outburst prevention outburst seam curtain grouting method
04/11/2012CN102409996A Automatic blowout prevention system for oil-field workover rig
04/11/2012CN102409995A 防腐防硫耐磨闸板防喷器 Corrosion resistance and abrasion resistance of sulfur ram preventer
04/11/2012CN102409994A 一种基于直线电机的闸板防喷器 Based on linear motor ram BOP
04/11/2012CN102409993A 汽驱井油管内防喷专用工具 Steam drive well tubing BOP special tools
04/11/2012CN102409992A 水下卧式采油树用整体式油管悬挂器 Horizontal underwater Christmas tree with integral tubing hanger
04/11/2012CN102409991A 井口防喷密封装置 Wellhead BOP sealing device
04/10/2012US8153563 Cement compositions comprising stevia retarders
04/10/2012US8151895 Eutectic salt inflated wellbore tubular patch
04/10/2012US8151894 Downhole apparatus with a swellable support structure
04/10/2012US8151879 Zone isolation assembly and method for isolating a fluid zone in an existing subsurface well
04/10/2012CA2677254C Swellable packer with enhanced sealing capability
04/10/2012CA2562351C A tension lift frame used as a jacking frame
04/05/2012WO2012041996A2 Rotating control device
04/05/2012WO2012041955A2 Drill pipe
04/05/2012WO2012021654A3 Dissolvable bridge plug
04/05/2012WO2012015927A3 Downhole seal and method of lubricating a downhole tool
04/05/2012WO2012005926A3 Drill string/annulus sealing with swellable materials
04/05/2012WO2012005871A3 Packing element system with profiled surface
04/05/2012WO2011163305A3 Side pocket barrier valve gas lift and mandrel
04/05/2012WO2011162895A3 Telescoping conduits with shape memory foam as a plug and sand control feature
04/05/2012WO2011159925A3 Use of wired tubulars for communications/power in an in-riser application
04/05/2012WO2011143654A3 Method and apparatus for dropping a pump down plug or ball
04/05/2012WO2011115710A8 Well assembly with a composite fiber sleeve for an opening
04/05/2012US20120080202 Downhole Apparatus with Packer Cup and Slip
04/05/2012US20120080201 Double swivel apparatus and method
04/05/2012CA2813072A1 Rotating control device
04/05/2012CA2812897A1 Drill pipe
04/05/2012CA2812648A1 Blowout preventer blade assembly and method of using same
04/05/2012CA2812646A1 Blowout preventer blade assembly and method of using same
04/04/2012EP2435656A2 An active external casing packer (ecp) for frac operations in oil and gas wells
04/04/2012CN202182258U 油井电缆穿透器用灌胶密封机构 Used plastic irrigation wells cable penetration sealing mechanism
04/04/2012CN202181917U 注射式封孔器 Injection-type sealing device
04/04/2012CN202181877U 一种定压凡尔及多层分层酸化施工工艺管柱 Seoul where one kind of constant pressure and multi-layered string acidizing process
04/04/2012CN202181876U 可钻式复合桥塞 Drillable composite bridge plug
04/04/2012CN202181875U Automatic defoaming dual-chamber mud mixing tank
04/04/2012CN202181874U 一种用于油井开采的封隔器 Packer for oil exploitation
04/04/2012CN202181873U 一种注水封隔器 One kind of injection packer
04/04/2012CN202181872U Packer with open architecture
04/04/2012CN202181871U 一种防止管柱蠕动的隔离坐封器 A method of preventing string creeping isolation packer devices
04/04/2012CN202181870U Ball seat of hydraulic packer
04/04/2012CN202181869U 防喷、防偏磨节能型光杆密封器 BOP, anti-bias energy-saving light rod mill sealer
04/04/2012CN202181857U 多功能安全接头 Multifunctional safety joint
04/04/2012CN102400659A 多功能注水泥器 Multifunction Cementer
04/04/2012CN102400658A 自感应式智能型电动驱动的液压胶囊封隔器 Since the induction of intelligent electric driven hydraulic capsule packer
04/04/2012CN102400657A Leaking stoppage downward putting device for oil well with oil leakage
04/04/2012CN102400656A 双封连体防喷器 Siamese twin seal BOP
04/04/2012CN102400655A 一种水下卧式采油树油管悬挂器的对接定位装置 Underwater horizontal christmas tree tubing hanger docking positioning device
04/03/2012US8146673 Method of activating a downhole tool assembly
04/03/2012US8146670 Bi-directional annulus seal
04/03/2012US8146663 Seal configuration for top drive swivel apparatus and method
04/03/2012US8146654 Composition and method for using waxy oil-external emulsions to modify reservoir permeability profiles
04/03/2012CA2694146C Method and apparatus for isolating a jet forming aperture in a well bore servicing tool
04/03/2012CA2692114C Slip segments for downhole tool
04/03/2012CA2684976C Blowout preventer with bonnet movement and valve apparatus
04/03/2012CA2675386C Split body swelling packer
04/03/2012CA2668152C Offshore universal riser system
04/03/2012CA2647865C Isolating tubing
04/03/2012CA2628802C Method and apparatus for hydraulic treatment of a wellbore
03/2012
03/29/2012WO2012040419A2 Pressure balanced drilling system and method using the same
03/29/2012WO2012040235A2 Remotely operated isolation valve
03/29/2012WO2012038799A1 Tubular joint
03/29/2012WO2012038102A1 Subsea container electrical through connector
03/29/2012WO2012005874A3 Mitigating leaks in production tubulars
03/29/2012WO2011153524A3 Magnetorheological blowout preventer
03/29/2012US20120073835 Orientable eccentric downhole assembly
03/29/2012US20120073834 Friction Bite with Swellable Elastomer Elements
03/29/2012US20120073830 Universal Backup for Swellable Packers
03/29/2012US20120073828 Downhole material delivery
03/29/2012US20120073827 Downhole catcher for an actuating ball and method
03/29/2012US20120073826 Pressure balanced drilling system and method using the same
03/29/2012US20120073816 Blowout preventer blade assembly and method of using same
03/29/2012US20120073814 Expansion against cement for zonal isolation
03/29/2012US20120073813 Novel Weight Materials for Use in Cement, Spacer and Drilling Fluids
03/29/2012US20120073811 In situ process for mercury removal
03/29/2012CA2811117A1 Remotely operated isolation valve
03/29/2012CA2808477A1 Magnetically controlled delivery of subterranean fluid additives for use in subterranean applications
03/28/2012EP2434089A2 Friction bite with swellable elastomer elements
03/28/2012EP2434088A2 Universal backup for swellable packers
03/28/2012EP2434087A2 Adaptor flange for rotary control device
03/28/2012EP2118437B1 Reservoir stimulation while running casing related applications
03/28/2012CN202176600U 井口防盗螺栓 Wellhead theft bolts
03/28/2012CN202176310U 内置式套管浮箍 Built-in casing float collar
03/28/2012CN202176309U 一种具有快速移动挡销的水泥头装置 A cement head means having a fast-moving stop pin
03/28/2012CN202176308U 柔性内管固井井口工具 Flexible inner tube cementing the wellhead tools
03/28/2012CN202176307U 热采封隔器 Thermal Recovery packer
03/28/2012CN202176306U Packer of sliding-type sealing structure
03/28/2012CN202176305U 一种带有防突保护装置的自膨胀封隔器 A self-inflatable packer outburst prevention protection devices with
03/28/2012CN202176304U 双密封注蒸汽封隔器 Double sealed steam injection packer
03/28/2012CN202176303U 水下井口头用承载装置 Water go down orally by carrying device
03/28/2012CN202176302U 多重安全密封调中井口装置 Multiple safety seal tune in wellhead
03/28/2012CN202176301U 机动采油井封井装置 Motor oil well plugging device
03/28/2012CN202176300U 一种螺旋盘根式密封圈 Packing type in a spiral ring
03/28/2012CN202176299U 护筒型提捞采油井封井器 Casing type bailing production wells blowout preventer
03/28/2012CN202176298U 可润滑抽油井光杆密封器 Lubricate the rod pumping wells sealer
03/28/2012CN202176297U 多级悬挂复合型四通 Stone complex multi-stage suspension
03/28/2012CN202176296U Well head pipeline penetrating sealer
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