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)
04/2012
04/12/2012WO2012047604A1 Pump down swage expansion method
04/12/2012WO2012047350A1 Wear bushing for locking to a wellhead
04/12/2012WO2012045168A1 Wellbore packer back-up ring assembly, packer and method
04/12/2012WO2012045165A1 Actuation dart for wellbore operations, wellbore treatment apparatus and method
04/12/2012WO2012045156A1 Wireline conveyed apparatus for wellbore fluid treatment
04/12/2012WO2012024063A3 Retractable petal collet backup for a subterranean seal
04/12/2012WO2012003084A3 Installation system with force generating tool
04/12/2012WO2011126592A3 Tubing hanger running tool with integrated pressure release valve
04/12/2012US20120085552 Wellhead Rotating Breech Lock
04/12/2012DE10297287B4 Richtkeil für ein Futterrohr Whipstock for a liner
04/12/2012CA2813990A1 Electrically driven coiled tubing injector assembly
04/12/2012CA2813690A1 Wireline conveyed apparatus for wellbore fluid treatment
04/12/2012CA2813650A1 Wellbore packer back-up ring assembly, packer and method
04/12/2012CA2813645A1 Actuation dart for wellbore operations, wellbore treatment apparatus and method
04/12/2012CA2813620A1 Remotely controlled apparatus for downhole applications and related methods
04/12/2012CA2813611A1 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods
04/11/2012CN102409990A Positioning hanger
04/10/2012US8151890 System, method and apparatus for a modular production tree assembly to reduce weight during transfer of tree to rig
04/10/2012US8151873 Expandable packer with mandrel undercuts and sealing boost feature
04/10/2012CA2677254C Swellable packer with enhanced sealing capability
04/10/2012CA2641208C Friction spring release mechanism
04/05/2012WO2012015927A3 Downhole seal and method of lubricating a downhole tool
04/05/2012WO2012005871A3 Packing element system with profiled surface
04/05/2012WO2011162895A3 Telescoping conduits with shape memory foam as a plug and sand control feature
04/05/2012WO2011146866A3 Method and apparatus for deploying and using self-locating downhole devices
04/05/2012US20120080183 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods
04/03/2012US8146672 Method and apparatus for retrieving and installing a drill lock assembly for casing drilling
04/03/2012US8146669 Multi-step heater deployment in a subsurface formation
04/03/2012US8146668 Downhole tubular lifter and method of using the same
04/03/2012CA2692114C Slip segments for downhole tool
03/2012
03/29/2012WO2012039620A1 Method and device for hydraulic control of downhole actuators
03/29/2012WO2012005874A3 Mitigating leaks in production tubulars
03/29/2012US20120074722 Head Assembly
03/29/2012US20120073832 Multi-purpose fill and circulate well tool
03/29/2012US20120073831 Mud saver mat for rig floors and other areas
03/29/2012US20120073830 Universal Backup for Swellable Packers
03/29/2012CA2753622A1 Downhole catcher for an actuating ball and method
03/28/2012CN202176297U 多级悬挂复合型四通 Stone complex multi-stage suspension
03/28/2012CN102395753A Open hole frac system
03/27/2012US8141643 Method and frame
03/27/2012US8141626 Packer-anchoring device
03/27/2012CA2667347C Liner anchor for expandable casing strings
03/27/2012CA2562159C Retrievable downhole pumping system
03/27/2012CA2531364C Method of deploying and powering an electrically driven device in a well
03/22/2012WO2012037130A1 Pump down liner expansion method
03/22/2012WO2012036917A2 Self-releasing plug for use in a subterranean well
03/22/2012WO2012034209A1 Anchor for a tubing string and method
03/22/2012CA2812138A1 Self-releasing plug for use in a subterranean well
03/22/2012CA2811324A1 Anchor for a tubing string and method
03/21/2012CN202170771U 螺杆泵防转不压井管柱 Screw anti-rotation snubbing string
03/21/2012CN102383767A Mountable backing and sand prevention throttle used under well
03/21/2012CN102383766A Self-heating natural gas hydrate preventing device
03/21/2012CN102383753A Method and system for arranging capillary tube and transferring pressure during oil-water well work under pressure
03/21/2012CN102383752A Novel method and equipment for removing jamming by explosion break-outing for extended reach wells and horizontal wells
03/20/2012US8136588 Downhole tool and running tool system for retrievably setting a downhole tool at locations within a well bore
03/20/2012US8136216 Method of coupling expandable tubing sections
03/20/2012CA2486866C Inner core barrel head assembly for core tube within a drill string
03/20/2012CA2466859C Packer with metal sealing element
03/15/2012WO2012034001A1 A method for finding and re-entering a lateral bore in a multi-lateral well
03/15/2012US20120061101 Method of running a pipe string having an outer diameter transition
03/15/2012US20120061098 Downhole device
03/15/2012US20120061097 Pump Down Liner Expansion Method
03/15/2012US20120061075 Expandable ramp gripper
03/15/2012US20120061074 Gripper assembly for downhole tools
03/15/2012CA2811058A1 A method for finding and re-entering a lateral bore in a multi-lateral well
03/14/2012EP2428640A2 Systems and methods for using rock debris to inhibit the initiation or propagation of fractures within a passageway through subterranean strata
03/14/2012EP2428639A2 Arrangement of isolation sleeve and cluster sleeves having pressure chambers
03/14/2012EP2427629A2 Downhole tool
03/14/2012EP2427628A2 Downhole tool
03/14/2012EP2427627A2 Downhole material delivery
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
03/14/2012CN102373894A Feeding and refloating integrated type plunger tool and working method thereof
03/14/2012CN102373893A Electrohydraulic control system for hydraulic support in thin-seam working surface
03/14/2012CN102373892A Expansion liner hanger
03/14/2012CA2750931A1 Single piece packer extrusion limiter ring
03/13/2012US8132627 Downhole tubular expansion tool and method
03/13/2012CA2636887C Tubing retrievable safety valve and method
03/10/2012CA2751967A1 Hydraulic sleeve with early release prevention
03/08/2012WO2012030638A1 Longitudinally split swellable packer and method
03/08/2012WO2012027831A1 Multi-function isolation tool and method of use
03/08/2012US20120055294 Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular strings
03/07/2012CN202157772U 油井用封隔器卸扭装置 Oil well packer means unloading twist
03/07/2012CN102367729A Hydraulic anchor volume tube pulling-out tool
03/07/2012CN102367728A Hydraulic anchor fluke pulling-out tool
03/07/2012CN102367727A Single-slips double-acting non-cyclical setting whipstock hanging tool
03/06/2012US8127858 Open-hole anchor for whipstock system
03/06/2012US8127857 Single trip, tension set, metal-to-metal sealing, internal lockdown tubing hanger
03/06/2012US8127853 Internal tieback for subsea well
03/06/2012US8127835 Integrated cable hanger pick-up system
03/01/2012WO2012027015A1 Plug counter, fracing system and method
03/01/2012WO2012025714A2 Subsea running tool with emergency release
03/01/2012WO2012006327A3 Fiber support arrangement and method
03/01/2012WO2011071391A3 Kick-over tool
03/01/2012US20120048623 Holding device insertable into the central bore of a tubular drill string component, and corresponding tubular drill string component
03/01/2012US20120048574 Fill up tool
03/01/2012US20120048540 Safety Structure For Downhole Power Unit Testing
03/01/2012CA2807471A1 Plug counter, fracing system and method
02/2012
02/29/2012EP2422037A1 Stroker device
02/28/2012US8122906 Pressure driven apparatus for sequential control of a cementing head
02/23/2012WO2012024063A2 Retractable petal collet backup for a subterranean seal
1 ... 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 ... 128