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)
03/2012
03/14/2012CN202165606U 一种锥形密封圈 One kind of cone ring
03/14/2012CN202165067U 空气泡沫驱井底发泡工艺管柱 Air foam flooding downhole string foaming process
03/14/2012CN202165065U 一种管柱堵塞器 One kind of string clogged filter
03/14/2012CN202165059U 节能抽油装置 Saving oil rig
03/14/2012CN202165055U 地面驱动单螺杆泵井下油水分离同井采注装置 Ground-driven single screw downhole oil-water separation equipment with well taken note
03/14/2012CN202165049U 插管固井装置 Cementing intubation device
03/14/2012CN202165048U 多功能注水泥管柱 Multifunction cementing string
03/14/2012CN202165047U 适用于水平井的扩张式裸眼封隔器 For horizontal wells expandable openhole packer
03/14/2012CN202165046U 一种液压封隔器 A hydraulic packer
03/14/2012CN202165045U 用于水平井的阶梯式球座 Stepped tee for horizontal wells
03/14/2012CN202165044U 油田用抽汲钢丝绳防喷器 Oilfield pumping rope BOP
03/14/2012CN202165043U 防喷安全阀及专用放压工具 BOP pressure release valve and special tools
03/14/2012CN202165042U 橡胶盘根 Rubber packing
03/14/2012CN202165041U 插入式密封装置 Plug-sealing device
03/14/2012CN202165038U 一种用于井下安全阀故障处理的工具 A downhole safety valve troubleshooting tools for
03/14/2012CN102373898A Well cementing head
03/14/2012CN102373897A Hydraulic plunger for efficient grouting construction
03/14/2012CN102373896A Oil well blowout control device
03/14/2012CN102373895A Well head device
03/14/2012CN102373888A Sleeve floating coupling and well cementing method
03/14/2012CA2750931A1 Single piece packer extrusion limiter ring
03/13/2012US8132777 Blowout preventer having modified hydraulic operator
03/13/2012US8132631 Method of geothermal loop installation
03/13/2012US8132623 Methods of using lost circulation compositions
03/13/2012CA2646549C Casing shoes and methods of reverse-circulation cementing of casing
03/08/2012WO2012031265A2 Method and apparatus to observe a swellable packer element
03/08/2012WO2012029588A1 Method for sealing off discharge of oil etc. caused by breakage of steel pipe etc. of undersea oil well
03/08/2012WO2012027831A1 Multi-function isolation tool and method of use
03/08/2012WO2011059756A8 Hydraulic control system monitoring apparatus and method
03/08/2012US20120055684 Arrangement of Isolation Sleeve and Cluster Sleeves Having Pressure Chambers
03/08/2012US20120055680 Blow-out preventer, and oil spill recovery management system
03/08/2012US20120055671 Multi-Functional Isolation Tool and Method of Use
03/08/2012US20120055669 Systems and methods for monitoring a parameter of a subterranean formation using swellable materials
03/08/2012US20120055667 Wellbore isolation tool using sealing element having shape memory polymer
03/07/2012EP2425093A1 Wellbore isolation tool using sealing element having shape memory polymer
03/07/2012CN202157784U 井下单流阀 Downhole single valve
03/07/2012CN202157782U 改进的筛管半固井分级箍 Improved screen half cementing grade hoop
03/07/2012CN202157781U 一种水平井筛管顶部注水泥固井用旋转器 The top of the screen a horizontal well cementing with rotator
03/07/2012CN202157780U 半固井可循环封隔器 Semi cementing packer can be recycled
03/07/2012CN202157779U 一种具有桥式孔通道的双层集成分注封隔器 Having a double integration of the cell passages of bridge dispensing packer
03/07/2012CN202157778U 聚氨酯简易自封芯子 Simple self-styled polyurethane core
03/07/2012CN202157777U 液压座封的井口保护器 Hydraulic seat seal wellhead protection
03/07/2012CN102367730A Heavy oil multiphase thermal huff and puff oil recovery method
03/06/2012US8127868 Apparatus and methods for drilling a wellbore using casing
03/06/2012US8127859 Use of swellable material in an annular seal element to prevent leakage in a subterranean well
03/06/2012US8127854 System and method for rigging up well workover equipment
03/06/2012US8127852 Interchangeable subsea wellhead devices and methods
03/06/2012US8127846 Wiper plug perforating system
03/06/2012US8127838 Stuffing box leak containment apparatus
03/06/2012CA2601495C Method and apparatus for sampling formation fluids
03/01/2012WO2012027283A1 Sand control well completion method and apparutus
03/01/2012WO2012027149A1 Rapid swelling and un-swelling materials in well tools
03/01/2012WO2012027015A1 Plug counter, fracing system and method
03/01/2012WO2012027002A2 Modular subsea completion
03/01/2012WO2012027001A2 Independent guide string hanger
03/01/2012WO2012025715A2 Ratchet and latch mechanisms
03/01/2012WO2012025713A2 Preloading device
03/01/2012WO2012003425A3 Apparatus and methods for producing oil and plugging blowouts
03/01/2012WO2012003196A3 Shape memory cement annulus gas migration prevention apparatus
03/01/2012WO2011153621A9 Rotating flow control diverter
03/01/2012US20120048574 Fill up tool
03/01/2012US20120048567 Modular subsea completion
03/01/2012US20120048556 Plug counter, fracing system and method
03/01/2012US20120048551 Rapid swelling and un-swelling materials in well tools
03/01/2012US20120048550 Methods Useful for Controlling Fluid Loss in Subterranean Formations
03/01/2012US20120048534 Independent guide string hanger
03/01/2012US20120048532 Method and apparatus for plugging leaking oil and gas wells
03/01/2012DE102010035454A1 Device for controlling petroleum discharges at ocean bed, has outlet valve that reduces pressure under plate at outlet point, and inlet valve including connection pieces for lines for pumping liquid concrete or other materials
03/01/2012CA2872198A1 Plug counter, fracing system and method
03/01/2012CA2808301A1 Sand control well completion method and apparatus
03/01/2012CA2807770A1 Independent guide string hanger
03/01/2012CA2807503A1 Swellable glass in well tools
03/01/2012CA2807471A1 Plug counter, fracing system and method
02/2012
02/29/2012EP2423430A1 Downhole apparatus and method
02/29/2012EP2423429A1 Valve condition monitoring
02/29/2012EP2173967B1 A sealing device for a tubing arrangement
02/29/2012CN202152677U 固定式地滑轮 Fixed to a pulley
02/29/2012CN202152670U 水平井分段措施施工管柱 Construction staging measure horizontal wells column
02/29/2012CN202152668U 潜油电机防砂保护器 Sand submersible motor protection
02/29/2012CN202152663U 双向浮动式坐封装置 Two-way floating packer device
02/29/2012CN202152662U 扩张式封隔器抗水击进液装置 Expandable packer inlet device anti water hammer
02/29/2012CN202152661U 油井锚定式分级解封封隔器 Well anchored classifier unseal packer
02/29/2012CN202152660U 井口卡箍防盗装置 Wellhead clamp anti-theft device
02/29/2012CN202152659U 井口防盗封井器 Wellhead blowout preventer theft
02/29/2012CN202152658U 闸门手轮防撬装置 Gate handwheel tamper device
02/29/2012CN202152643U 多层系开采油井的分层求产测压管柱 Multi-tiered system of exploitation of oil production manometry seeking column
02/29/2012CN102365420A Cement as anchor for expandable tubing
02/29/2012CN102365419A Expansion against cement for zonal isolation
02/29/2012CN102364039A Dynamic sealing device for rotary blowout preventer
02/29/2012CN102364038A Underwater oil pipe hanger embedded guiding and positioning device
02/29/2012CN101498204B Balance type step-by-step releasable flushing packer
02/29/2012CN101319602B Single card oil layer blasting hole plugging column
02/29/2012CN101265789B Compound pressurized cyclone tail tube hanging packer
02/29/2012CA2713936A1 High-pressure/high temperature packer seal
02/28/2012US8124571 Consolidation via alkali metal/alkaline earth metal bicarbonate; well bores
02/28/2012US8123226 Seal assembly
02/28/2012US8122964 Subsea stack alignment method
02/28/2012US8122959 Methods and materials for zonal isolation
02/28/2012US8122958 Method and device for transferring signals within a well
02/28/2012US8122949 Tapered sleeve and fracturing head system for protecting a conveyance string
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