| 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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| 08/22/2013 | US20130213640 Wireless drill string disconnect |
| 08/22/2013 | DE112011103401T5 Verfahren zur Ausdehnung mittels eines abwärts zu pumpenden Gesenks Method of extending downward to be pumped by means of a die |
| 08/21/2013 | EP2627857A2 Method and apparatus for isolating and treating discrete zones within a wellbore |
| 08/21/2013 | EP2627856A2 Improved downhole apparatus |
| 08/21/2013 | EP2627853A2 Pressure bearing wall and support structure therefor |
| 08/21/2013 | CN203145878U Double-hydraulic ball shooting mechanism |
| 08/21/2013 | CN203145877U Hydraulic anchor |
| 08/21/2013 | CN203145876U Rapid clamp remover |
| 08/21/2013 | CN203145875U Transmission structure |
| 08/21/2013 | CN203145874U Pumping type oil pipe blanking plug |
| 08/21/2013 | CN103261582A Method for automatic control and positioning of autonomous downhole tools |
| 08/21/2013 | CN103261578A Rock anchor |
| 08/21/2013 | CN103261574A Remotely controlled apparatus for downhole applications and related methods |
| 08/21/2013 | CN102031940B Method for allowing downhole tool to pass through water distributors back and forth and execution device |
| 08/20/2013 | US8511393 Slip hanger assembly and actuator |
| 08/20/2013 | US8511392 Downhole swivel sub |
| 08/20/2013 | US8511376 Downhole C-ring slip assembly |
| 08/20/2013 | US8511372 Method and system for accessing subterranean deposits from the surface |
| 08/20/2013 | CA2572779C System and method for drilling wellbores |
| 08/15/2013 | WO2012116079A3 Subsea conductor anchor |
| 08/15/2013 | US20130206409 One-way flowable anchoring system and method of treating and producing a well |
| 08/15/2013 | US20130206402 Actuation dart for wellbore operations, wellbore treatment apparatus and method |
| 08/15/2013 | US20130206397 Apparatus and method for positioning and orienting a borehole tool |
| 08/15/2013 | US20130206396 Piston tractor system for use in subterranean wells |
| 08/15/2013 | US20130206392 Fracturing Tool Anchor |
| 08/14/2013 | EP2625381A1 Actuation dart for wellbore operations, wellbore treatment apparatus and method |
| 08/14/2013 | EP2625380A1 Wireline conveyed apparatus for wellbore fluid treatment |
| 08/14/2013 | EP2625379A2 Remotely controlled apparatus for downhole applications and related methods |
| 08/14/2013 | EP2625378A2 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 08/14/2013 | EP2625376A1 Wellbore packer back-up ring assembly, packer and method |
| 08/14/2013 | CN203130014U Penetrating-type oil tube hanger positioning device |
| 08/14/2013 | CN203130002U Hydraulic vibrator |
| 08/14/2013 | CN203130001U Releasing tool |
| 08/14/2013 | CN203130000U Polish rod packing addit of oil pumping unit |
| 08/14/2013 | CN203129999U Control system of electronically controlled hydraulically driven coiled tubing downhole tractor |
| 08/14/2013 | CN103244067A Downhole compound lifting tool for separated layer water injection pipe columns for highly deviated well and using method thereof |
| 08/14/2013 | CN102094588B Downhole power-driven release |
| 08/13/2013 | US8505638 Restricted axial movement locking mechanism |
| 08/13/2013 | CA2812352C Redundant position reference system for multilateral exit construction and method for use of same |
| 08/08/2013 | WO2013115655A1 A method and an apparatus for retrieving a tubing from a well |
| 08/08/2013 | WO2012150189A3 Setting and retrieval device |
| 08/08/2013 | US20130199798 Temporary protective cover for operative devices |
| 08/08/2013 | US20130199783 Arrangement, device and method for resolving hydrate plugs |
| 08/07/2013 | CN203114216U Peristaltic compensator |
| 08/07/2013 | CN203114215U Clamping block locating type tubing anchor |
| 08/07/2013 | CN103237954A Wireless downhole unit |
| 08/07/2013 | CN103233695A Hydraulic lock |
| 08/07/2013 | CN103233694A Method for descending and suspending production casing for mining area ground coal-bed gas well and casing device |
| 08/07/2013 | CA2803718A1 Braking mechanism for a downhole tool |
| 08/06/2013 | US8499840 Downhole release joint with radially expandable member |
| 08/06/2013 | US8499839 Connection device |
| 08/06/2013 | US8499827 Sand control screen assembly and method for use of same |
| 08/06/2013 | CA2709859C Shunt tube connector lock |
| 08/06/2013 | CA2552576C Externally activated seal system for wellhead |
| 08/06/2013 | CA2510212C Method and system to deploy control lines |
| 08/01/2013 | WO2013112290A1 Tubular anchoring system and method |
| 08/01/2013 | WO2013110197A1 Core barrel valve assembly |
| 08/01/2013 | WO2012118611A3 Well plug and abandonment choke insert |
| 08/01/2013 | US20130192897 Downhole Tool Activation |
| 08/01/2013 | US20130192851 Providing coupler portions along a structure |
| 08/01/2013 | US20130192819 Subterranean well tools having nonmetallic drag block sleeves |
| 08/01/2013 | CA2861963A1 Core barrel valve assembly |
| 07/31/2013 | CN203097777U Oil field down-hole pipe string draining type hydraulic oil pipe anchor |
| 07/31/2013 | CN203097776U Mechanical anchor |
| 07/31/2013 | CN203097775U Hydraulic anchor |
| 07/31/2013 | CN203097774U Electric-submersible-pump falling-prevention device preventing midway anchoring |
| 07/31/2013 | CN203097773U Carbon dioxide flooding sleeve protection tool |
| 07/31/2013 | CN203097772U Ultra-deep well mandrel type sleeve hanging device |
| 07/31/2013 | CN203097771U Force sensing positioning casting-fishing tool |
| 07/31/2013 | CN203097770U Special detaching spanner for twist drill rod under shaft |
| 07/31/2013 | CN103228863A Downhole punch component |
| 07/31/2013 | CN103228862A Entry guide formation on a well liner hanger |
| 07/31/2013 | CN103228861A Downhole system having a wireless unit |
| 07/31/2013 | CA2804281A1 System and method for providing power, two-way communication, and operation of downhole tools in a horizontal wellbore |
| 07/30/2013 | US8496065 Release assembly for a downhole tool string |
| 07/30/2013 | US8496052 Bottom set down hole tool |
| 07/25/2013 | WO2013109654A1 System, method and apparatus for manufacturing stable cement slurry for downhole injection |
| 07/25/2013 | US20130187338 Multifunctional key design for metal seal in subsea application |
| 07/25/2013 | US20130186649 Tubular anchoring system and method |
| 07/25/2013 | US20130186648 Tubular anchoring system and method |
| 07/25/2013 | US20130186646 Treatment plug setting tool, setting system and method of avoiding setting a treatment plug while running |
| 07/25/2013 | US20130186645 Downhole Robots and Methods of Using Same |
| 07/25/2013 | US20130186644 Mechanical Counter |
| 07/25/2013 | US20130186628 Downhole tool hydraulic retriever |
| 07/25/2013 | US20130186619 Method and apparatus of distributed systems for extending reach in oilfield applications |
| 07/25/2013 | US20130186616 Tubular anchoring system and a seat for use in the same |
| 07/24/2013 | EP2616636A1 Pump down liner expansion method |
| 07/24/2013 | EP2616631A2 Self-releasing plug for use in a subterranean well |
| 07/24/2013 | CN203081367U Large drift diameter hollow ground anchor for oil and gas well cementation and completion practice |
| 07/24/2013 | CN203081366U Expansion suspending device of under-cut release |
| 07/24/2013 | CN203081365U Horizontal-well-logging top-proof unlocking apparatus |
| 07/24/2013 | CN103216203A Top conversion tool used for preventing sand |
| 07/24/2013 | CN102374360B Hydraulic drive telescopic downhole tool running device of horizontal well |
| 07/23/2013 | US8490702 Downhole tool assembly with debris relief, and method for using same |
| 07/23/2013 | US8490691 Plug |
| 07/23/2013 | CA2734186C Tubing hanger |
| 07/23/2013 | CA2717080C One trip liner running, cementing and setting tool using expansion |
| 07/23/2013 | CA2565939C Separation of evolved gases from drilling fluids in a drilling operation |
| 07/23/2013 | CA2562568C Non-tubing deployed well artificial lift system |
| 07/18/2013 | WO2013043539A3 Well tractor with active traction control |