| Patents for E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712) |
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| 06/19/2013 | CN101688438B Running tool for expandable liner hanger and associated methods |
| 06/19/2013 | CN101220734B Working bench support in mine |
| 06/18/2013 | US8464786 Non basepipe-welded accessory attachment |
| 06/18/2013 | CA2731161C Selective fracturing tool |
| 06/18/2013 | CA2693433C A method and apparatus for subterranean fracturing |
| 06/18/2013 | CA2671444C Restriction element trap for use with and actuation element of a downhole apparatus and method of use |
| 06/13/2013 | WO2013055590A4 Steering head with integrated drilling dynamics control |
| 06/13/2013 | US20130146312 Self-inhibited swell packer compound |
| 06/13/2013 | US20130146309 Differential Shifting Tool and Method of Shifting |
| 06/13/2013 | US20130146308 Support Device Of Equipment Inside A Well, A Process For Fixing It And A Process For Placing Such Equipment |
| 06/13/2013 | US20130146306 Casing hanger lockdown with conical lockdown ring |
| 06/13/2013 | US20130146298 Subsea running tool with emergency release |
| 06/13/2013 | US20130146278 Ball grab tubular handling |
| 06/12/2013 | CN202990923U Tool for preventing midcourse action of packer |
| 06/12/2013 | CN202990922U Sand and scale prevention hydraulic anchor |
| 06/12/2013 | CN202990921U Extractor of regulating sleeve of intelligent regulating valve |
| 06/12/2013 | CN202990920U Connecting structure for power cables in fisher movement components |
| 06/12/2013 | CN202990919U Electronic hanging type separometer |
| 06/12/2013 | CN103147709A Casing hanger lockdown with conical lockdown ring |
| 06/12/2013 | CN101680280B 锚定工具 Anchored Tools |
| 06/11/2013 | US8459377 Downhole drive force generating tool |
| 06/11/2013 | US8459365 Apparatus for creating bidirectional rotary force or motion in a downhole device and method for using same |
| 06/11/2013 | US8459347 Subterranean well ultra-short slip and packing element system |
| 06/11/2013 | US8459346 Bottom set downhole plug |
| 06/11/2013 | CA2702652C Apparatus and method for directionally disposing a flexible member in a pressurized conduit |
| 06/06/2013 | WO2013082057A1 Modular downhole tools and methods |
| 06/06/2013 | WO2013081753A1 Selectively disengagable sealing system |
| 06/06/2013 | WO2013081584A1 Release assembly for a downhole tool string and method for use thereof |
| 06/06/2013 | WO2013079573A1 Pulling tool |
| 06/06/2013 | US20130140041 Selectively disengagable sealing system |
| 06/06/2013 | CA2857578A1 Apparatus for use in a fluid conduit |
| 06/06/2013 | CA2857509A1 Selectively disengagable sealing system |
| 06/06/2013 | CA2856979A1 Apparatus and method for controlling a downhole device |
| 06/06/2013 | CA2856166A1 Pulling tool |
| 06/06/2013 | CA2760931A1 Releasably lockable, retrievable, mule shoe assembly |
| 06/05/2013 | EP2599952A1 Pulling tool |
| 06/05/2013 | CN202970620U Anchoring and oil draining device |
| 06/05/2013 | CN202970603U Drilling liner hanger sealing box |
| 06/05/2013 | CN202970565U Thickened oil thermal recovery horizontal well multistage hydraulic pressure expansion tail pipe suspension system with variable diameter expansion cone |
| 06/05/2013 | CN202970564U Self-restoring locking component and drill rod elastic positioning device |
| 06/05/2013 | CN202970563U Extracting tool special for orientation sub loop sleeve |
| 06/05/2013 | CN202970562U Special tool suitable for pulling out protective sliding sleeve of mechanical downhole deployment valve |
| 06/05/2013 | CN202970472U Expansion pipe locating whipstock |
| 06/05/2013 | CN103140647A Subsea running tool with emergency release |
| 06/05/2013 | CN103132967A Multilateral well fracturing hanging well completion process device |
| 06/05/2013 | CN103132943A Multiplex tubing hanger |
| 06/05/2013 | CN103132939A Anchoring method and device of intelligent casting-pulling instrument |
| 06/05/2013 | CN103132938A Transmission device of intelligent casting-pulling instrument |
| 06/05/2013 | CN103132937A Power supply method and device of motion component of under-pit fisher |
| 06/05/2013 | CN101821473B Circulation control valve and associated method |
| 05/30/2013 | WO2012049459A3 Pressure bearing wall and support structure therefor |
| 05/30/2013 | WO2012049456A3 Improved downhole apparatus |
| 05/30/2013 | US20130138254 Automated controls for pump down operations |
| 05/30/2013 | US20130133901 Apparatus for Expanding Tubulars in a Wellbore |
| 05/30/2013 | US20130133879 Debris Barrier for Packer Setting Sleeve |
| 05/30/2013 | US20130133878 Setting Subterranean Tools with Flow Generated Shock Wave |
| 05/30/2013 | US20130133877 Differential Pressure Control Device for Packer Tieback Extension or Polished Bore Receptacle |
| 05/29/2013 | EP2596204A2 A safety mechanism for a well, a well comprising the safety mechanism, and related methods |
| 05/29/2013 | DE112011102497T5 Bohrlochdichtung und Verfahren zur Schmierung eines Bohrlochwerkzeugs Downhole seal and method for lubricating a downhole tool |
| 05/29/2013 | CN202954764U 液力锚 Hydraulic anchor |
| 05/29/2013 | CN101421485B Method and system for controlling a downhole flow control device |
| 05/28/2013 | US8449222 System for and method of installing foundation elements in an underwater ground formation |
| 05/28/2013 | US8448712 Re-latch mechanism for wellbore liner system |
| 05/28/2013 | CA2480537C Downhole force generator and method for use of same |
| 05/23/2013 | WO2013074468A2 Weight-based interlock apparatus and methods |
| 05/23/2013 | US20130126181 Multiplex tubing hanger |
| 05/23/2013 | US20130126173 Cement Head |
| 05/23/2013 | CA2858639A1 Weight-based interlock apparatus and methods |
| 05/22/2013 | EP2593634A1 Selective and non-selective lock mandrel assembly having upward biased inner sleeve |
| 05/22/2013 | EP2593633A2 Electrical wiring for drill pipe, casing, and tubing |
| 05/22/2013 | CN202946071U Hydraulic shaft anchor |
| 05/22/2013 | CN202946070U Hydraulic rotating invertedly-buckled releasing tool |
| 05/22/2013 | CN202946069U 井下油管锚定器 Downhole tubing anchors |
| 05/22/2013 | CN202946068U Small-size expansion hanger |
| 05/22/2013 | CN202946067U Mechanical pit shaft anchoring device |
| 05/22/2013 | CN202946066U Packing picking and mounting device on well mouth of pumping unit |
| 05/22/2013 | CN202946065U 压裂丢手装置 Fracturing throw hand device |
| 05/22/2013 | CN202946064U Running and releasing tool |
| 05/22/2013 | CN202946063U Flashboard blowout preventer sealing assembly extracting tool |
| 05/22/2013 | CN202946062U Device provided with slip sleeves in embedding mode and improving leaking stoppage effect of expansion pipe |
| 05/22/2013 | CN103119240A Electromechanical actuator apparatus and method for down-hole tools |
| 05/22/2013 | CN103114839A One-way transmission type retractor used under horizontal well |
| 05/22/2013 | CN103114821A Pipe shearing remote maintenance unit and process in deep-well radiation environment |
| 05/22/2013 | CN103114820A High-pressure well liquid balance drive counterbalance valve fetching and delivering tool |
| 05/22/2013 | CN102191923B Long-distance control wellhead operation device for workover operation |
| 05/22/2013 | CN101158267B Method and system for accessing subterranean deposits from the surface |
| 05/22/2013 | CA2794275A1 Entry tube system |
| 05/21/2013 | US8443906 Tools and methods useful with wellbore reverse circulation |
| 05/21/2013 | US8443905 Re-latch mechanism for wellbore liner system |
| 05/21/2013 | US8443895 Travel joint having an infinite slot mechanism for space out operations in a wellbore |
| 05/21/2013 | US8443884 Directional setting tool and associated methods |
| 05/21/2013 | CA2676964C Oil well completion tool having severable tubing string barrier disc |
| 05/21/2013 | CA2663495C Coiled tubing wellbore drilling and surveying using a through the drill bit apparatus |
| 05/21/2013 | CA2515482C Tractor with improved valve system |
| 05/16/2013 | WO2013015844A3 Annulus mounted potential energy driven setting tool |
| 05/16/2013 | WO2012083047A3 Multi-zone fracturing completion |
| 05/16/2013 | WO2012051584A3 Method and apparatus for isolating and treating discrete zones within a wellbore |
| 05/16/2013 | WO2012022287A3 Rotation-prevention means for borehole pumps |
| 05/16/2013 | WO2012021555A3 Fill up tool |
| 05/16/2013 | US20130118760 Weight-based interlock apparatus and methods |