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 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
Patents for E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712)
05/2012
05/30/2012CN102482933A System and method for anchoring an expandable tubular to a borehole wall
05/30/2012CN102482932A 可膨胀式尾管悬挂器的送入工具以及相关方法 Can be expandable liner hanger running tool and related methods
05/30/2012CN102482928A 可扩张保径环 Expandable gage ring
05/30/2012CN102482927A 用于密封地下钻孔和执行其它线缆井下旋转操作的装置及方法 Apparatus and method for sealing underground cables underground drilling and perform other operations for rotation
05/30/2012CN101614117B Expansion tube type liner hanger
05/30/2012CA2759340A1 Multifunction downhole release tool mechanism with lost motion
05/24/2012WO2012067842A2 Sealing devices having a non-elastomeric fibrous sealing material and methods of using same
05/24/2012WO2012065259A1 Kobe sub, wellbore tubing string apparatus and method
05/24/2012US20120125638 Device for Intervention in A Fluid Exploitation Well, Exploitation Installation and Associated Method
05/24/2012US20120125637 Non-metallic slip assembly and related methods
05/24/2012US20120125636 Remote operation of a rotating control device bearing clamp
05/24/2012US20120125635 Entry guide formation on a well liner hanger
05/24/2012US20120125634 Emergency Bowl for Deploying Control Line from Casing Head
05/24/2012US20120125633 Remote operation of a rotating control device bearing clamp and safety latch
05/24/2012CA2817777A1 Kobe sub, wellbore tubing string apparatus and method
05/24/2012CA2817733A1 Sealing devices having a non-elastomeric fibrous sealing material and methods of using same
05/23/2012CN202228027U Anti-blowout anchoring tool under screw pump
05/23/2012CN101509358B Tube fitting pressing device
05/23/2012CN101503952B Seat seal mechanism used for packing type tail pipe hanger
05/18/2012WO2012064389A1 Tool and method for placement of a component into a well
05/17/2012US20120118584 Modular tool for wellbore cleaning and method of use
05/17/2012US20120118561 Configurable inserts for downhole plugs
05/16/2012EP2452040A2 A down hole well tool provided with a piston
05/16/2012EP2452039A2 Apparatus and methods for sealing subterranean borehole and performing other cable downhole rotary operations
05/16/2012CN202220574U Tool synchronous locking device at shaft bottom of bushing well-drilling
05/16/2012CN202220573U Dropper
05/15/2012US8176986 Method of circulating while retrieving bottom hole assembly in casing
05/15/2012US8176975 Tubing pressure insensitive actuator system and method
05/15/2012CA2738113C Method of circulating while retrieving downhole tool in casing
05/15/2012CA2725059C Controlling backflow pressure during retrieval of bottom hole assembly
05/15/2012CA2680346C Well tool with circumferential variations on packing element
05/15/2012CA2626749C Diverter plugs for use in well bores and associated methods of use
05/10/2012WO2012061465A2 Combination whipstock and completion deflector
05/10/2012WO2012061202A2 Method and apparatus for creating an annular barrier in a subterranean wellbore
05/10/2012WO2012061096A2 Redundant position reference system for multilateral exit construction and method for use of same
05/10/2012WO2012060713A1 Device to operate downhole equipment
05/10/2012US20120111580 Tool and method for placement of a component into a well
05/10/2012US20120111579 Tools for use in subterranean boreholes having expandable members and related methods
05/10/2012US20120111578 Equipment and method for reinforcing a borehole of a well while drilling
05/10/2012CA2815860A1 Combination whipstock and completion deflector
05/10/2012CA2812352A1 Redundant position reference system for multilateral exit construction and method for use of same
05/10/2012CA2812074A1 Device for operating downhole equipment
05/09/2012CN202215172U Special tool for replacing seal packing of oil-transportation curved bar pump
05/09/2012CN102449307A Device for use in a fluid exploitation well, exploitation equipment, and associated method
05/09/2012CN102444387A Tie-back self-lock mechanism for suspended packer
05/09/2012CN102444386A Running tool for deep water
05/08/2012US8171989 Well having a self-contained inter vention system
05/08/2012US8171988 Stroker tool
05/08/2012CA2436944C Tractor with improved valve system
05/03/2012WO2012058551A2 Remote pig launcher
05/03/2012WO2012058546A2 Subsea pig handler
05/03/2012WO2011126591A3 Tubing hanger running tool with integrated landing features
05/03/2012US20120103631 Gravel Pack Inner String Adjustment Device
05/03/2012US20120103592 Down hole well tool provided with a piston
05/02/2012CN202209155U Releasing device and salvaging device for well completion
05/02/2012CN101514619B Novel direct circulation well cementing device and well cementing method for high-pressure gas underground gas storage well
05/01/2012US8167046 Method and apparatus to hydraulically bypass a well tool
05/01/2012CA2756519A1 Method and apparatus for single-trip time progressive wellbore treatment
05/01/2012CA2467571C Open hole anchor
04/2012
04/26/2012WO2012054253A2 Apparatus and method for compensating for pressure changes within an isolated annular space of a wellbore
04/26/2012WO2012051705A1 Tools and methods for use in completion of a wellbore
04/26/2012WO2012030638A4 Longitudinally split swellable packer and method
04/26/2012WO2012007884A3 Electrical wiring for drill pipe, casing, and tubing
04/26/2012WO2011098767A3 System and method for determining position within a wellbore
04/26/2012CA2852311A1 Tools and methods for use in completion of a wellbore
04/26/2012CA2808138A1 Drillable slip with buttons and cast iron wickers
04/25/2012EP2443310A2 Downhole tools and methods of setting in a wellbore
04/25/2012CN202202835U 油气井井下作业多功能井口装置 Downhole oil and gas wells multifunction wellhead
04/25/2012CN202202831U 抽油管柱锚定泄油装置 Pumping drain tubing string anchoring device
04/25/2012CN202202830U 多管穿越油管锚 Multi-tube through the tubing anchor
04/25/2012CN102428248A 膨胀封隔器以及构造方法 Inflatable packer and Constructors
04/24/2012US8162053 Gas lift plunger assembly arrangement
04/24/2012CA2738907C Tools and methods for use in completion of a wellbore
04/24/2012CA2667735C Large bore packer and methods of setting same
04/19/2012WO2012051409A2 Apparatus including metal foam and methods for using same downhole
04/19/2012US20120090894 Locking device for a drilling device
04/19/2012US20120090856 Method and apparatus for a high side orienting sub for multi-lateral installations
04/19/2012US20120090855 Down hole well tool with expansion tool
04/19/2012US20120090854 Pressure bearing wall and support structure therefor
04/19/2012US20120090847 Tools and Methods for Use in Completion of a Wellbore
04/19/2012US20120090832 Downhole Actuator
04/19/2012CA2814571A1 Improved downhole apparatus
04/18/2012EP2440741A2 Seat apparatus and method
04/18/2012CN202194613U 液压免钻悬挂封隔器 Hydraulic drill-free suspension packer
04/18/2012CN202194602U 独立式双作用投捞器 Independent double-acting tripping device
04/18/2012CN102418500A 直控式连续定量分层配产油管柱 Direct-controlled continuous quantitative hierarchical production tubing string with
04/18/2012CN102418487A 水下井口联合下入试验工具 Subsea wellhead jointly into the test tool
04/18/2012CN102418486A 用于分支井开窗侧钻的锚定工具 Wells sidetracking tool for anchoring
04/18/2012CN102418485A 可定位井下智能投捞器 Can be positioned downhole fishing is a smart investment
04/18/2012CN101338658B 可进行钢丝作业的密闭电潜泵生产完井系统及操作方法 Steel operations can be sealed ESP completion systems of production and method of operation
04/17/2012US8157004 Pipe handling apparatus
04/17/2012CA2689034C Method of drilling and completing multiple wellbores inside a single caisson
04/17/2012CA2664977C Slickline power control interface
04/17/2012CA2615820C Downhole tool with pivotally mounted extendable assembly
04/15/2012CA2755609A1 Downhole extending ports
04/14/2012CA2755102A1 Ultra-short slip and packing element system
04/13/2012CA2755159A1 Methods and compositions for suspending fluids in a wellbore
04/12/2012WO2012048180A2 Electrically driven coiled tubing injector assembly
04/12/2012WO2012047863A2 Remotely controlled apparatus for downhole applications and related methods
04/12/2012WO2012047837A2 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods
1 ... 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 ... 128