| 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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| 05/16/2013 | US20130118753 Seal system and method |
| 05/15/2013 | EP2591204A2 Packing element system with profiled surface |
| 05/15/2013 | EP2591203A2 Closure for a drill hole |
| 05/15/2013 | CN202937215U Small hole well oil pipe coupling back-off device |
| 05/15/2013 | CN202937209U Lowering tool for well-mouth head |
| 05/15/2013 | CN202937208U Device for adding packing into mouth of rod-pumped well |
| 05/15/2013 | CN202937207U Special electric submersible pump well head for oil extraction |
| 05/15/2013 | CN202937206U Device for replacing valve under pressure for water injection well |
| 05/15/2013 | CN103109037A Retractable downhole backup assembly for circumferential seal support |
| 05/15/2013 | CN103104208A Hydraulic anchor for field of oil exploitation |
| 05/15/2013 | CN101793128B Blowout preventing tubing anchor |
| 05/14/2013 | US8439119 Latching mechanism for changing pump size |
| 05/14/2013 | US8439107 Retrievable tool with ratchet lock feature |
| 05/14/2013 | CA2669151C Variable linkage assisted gripper |
| 05/10/2013 | WO2013066311A1 A contigency release device that uses right-hand torque to allow movement of a collet prop |
| 05/10/2013 | WO2012051705A9 Tools and methods for use in completion of a wellbore |
| 05/10/2013 | CA2844709A1 A contigency release device that uses right-hand torque to allow movement of a collet prop |
| 05/09/2013 | US20130113227 High expansion or dual link gripper |
| 05/09/2013 | US20130112432 Accelerator Mixture for Peroxide Hardener and Two-Component Mortar System Containing Same |
| 05/09/2013 | US20130112412 Settable well tool and slips |
| 05/09/2013 | US20130112397 Spiral Whipstock for Low-Side Casing Exits |
| 05/08/2013 | EP2588710A2 Mitigating leaks in production tubulars |
| 05/08/2013 | CN202926268U Anchor |
| 05/08/2013 | CN202926267U Expansion type falling object protective device used for suspension device |
| 05/08/2013 | CN202926266U Eccentric injection well blanking plug pressure feed device |
| 05/08/2013 | CN103097646A Self-releasing plug for use in a subterranean well |
| 05/08/2013 | CN103097645A A safety mechanism for a well, a well comprising the safety mechanism, and related methods |
| 05/08/2013 | CN103097644A T-frac system run in system |
| 05/08/2013 | CN103089193A Tail pipe completion method by plugging expandable casing on top of screen pipe |
| 05/08/2013 | CN103089180A Casing sidetracked well completion method using expansion screen tube |
| 05/08/2013 | CN103089179A Auxiliary tool for running instruments and cables in vertical well |
| 05/07/2013 | US8434561 Controlled hydrostatic pressure completion system |
| 05/02/2013 | WO2013063317A2 High expansion or dual link gripper |
| 05/02/2013 | WO2013062786A2 Gradational insertion of an artificial lift system into a live wellbore |
| 05/02/2013 | WO2013059873A1 A downhole tool |
| 05/02/2013 | WO2013028342A3 Completing underwater wells |
| 05/02/2013 | US20130105177 Contigency release device that uses right-hand torque to allow movement of a collet prop |
| 05/02/2013 | CA2853510A1 A downhole tool |
| 05/02/2013 | CA2852907A1 Gradational insertion of an artificial lift system into a live wellbore |
| 05/01/2013 | CN202914126U Support device for hydraulic fracturing hole-sealing capsule |
| 05/01/2013 | CN202914053U Sand control screen pipe |
| 05/01/2013 | CN202914001U Hydraumatic-machinery double-acting tail pipe releasing tool |
| 05/01/2013 | CN202914000U Centralizing and anchoring device used for horizontal open hole |
| 05/01/2013 | CN202913999U Wrench special for oil well pipe plug |
| 05/01/2013 | CN202913998U Mechanical- hydraulic double-acting releasing gadget |
| 05/01/2013 | CN202913997U Separation and reunion device of water consumption measuring and adjusting instrument of oil field hollow water injection well |
| 05/01/2013 | CN202913969U Large-drift-diameter selected injection and exploitation integrated tubular column of heavy oil well |
| 05/01/2013 | CN103075123A Electro-hydraulic driving setting tool |
| 04/30/2013 | US8430176 Zero backlash downhole setting tool and method |
| 04/25/2013 | WO2013058982A2 Method and apparatus for removing shifting tools and providing wellbore isolation |
| 04/25/2013 | WO2013022724A3 Reorienting annular debris barrier |
| 04/25/2013 | WO2013012553A3 Downhole fluid-flow communication technique |
| 04/25/2013 | WO2012178214A3 Pump drain arrangements for packer systems and methods for sampling underground formations using same |
| 04/25/2013 | WO2012134705A3 Single trip liner setting and drilling assembly |
| 04/25/2013 | US20130098633 Recoverable production module for use with a production tree |
| 04/25/2013 | US20130098632 Gradational insertion of an artificial lift system into a live wellbore |
| 04/24/2013 | EP2584138A2 Apparatus and methods for wedge lock prevention |
| 04/24/2013 | CN202900114U Dismounting device of logging while drilling apparatus electronic framework |
| 04/24/2013 | CN202900113U Down-hole in-pipe support device |
| 04/24/2013 | CN202900112U Wellhead sleeve fixator |
| 04/24/2013 | CN202900111U Slider suspension type underground positioner |
| 04/24/2013 | CN202900110U Sand prevention cover of hanger |
| 04/24/2013 | CN202900109U Delivery tool of oil field well drilling instrument |
| 04/23/2013 | US8424596 High efficiency fluid pumping apparatus and method |
| 04/18/2013 | WO2013055590A1 Steering head with integrated drilling dynamics control |
| 04/18/2013 | WO2013055351A1 Alignment of bop stack to facilitate use of a rotating control device |
| 04/18/2013 | WO2013053057A1 Wellbore actuators, treatment strings and methods |
| 04/18/2013 | WO2013053055A1 Downhole actuation ball, methods and apparatus |
| 04/18/2013 | WO2013022720A3 Annular gap debris barrier |
| 04/18/2013 | US20130092398 Method and apparatus for removing shifting tools and providing wellbore isolation |
| 04/18/2013 | US20130092397 Scalloped landing ring |
| 04/18/2013 | US20130092383 Methods and apparatus for subsea well intervention and subsea wellhead retrieval |
| 04/18/2013 | CA2852779A1 Downhole actuation ball, methods and apparatus |
| 04/18/2013 | CA2852252A1 Downhole tool actuator |
| 04/18/2013 | CA2851710A1 Wellbore actuators, treatment strings and methods |
| 04/17/2013 | EP2581547A2 Downhole contingency apparatus |
| 04/17/2013 | CN202882819U Setting tool penetrating cable packer |
| 04/17/2013 | CN202882818U Self-seal-examining screen pipe hanger |
| 04/17/2013 | CN202882817U Hydraulic anchor fluke capable of being pulled out, pulling tool and installation tool |
| 04/17/2013 | CN202882816U Double-stage fishbone well multilateral well hole naked eye anchoring releasing tool |
| 04/17/2013 | CN202882815U Object falling preventing type wellhead blocking seat |
| 04/17/2013 | CN103046884A Scalloped landing ring with clearance for a cement tube |
| 04/17/2013 | CN101899954B Depth positioner of well-entry tool and positioning method |
| 04/17/2013 | CN101575951B Petroleum expansion pipe hanger and construction technology |
| 04/16/2013 | US8418758 Jarring tool with micro adjustment |
| 04/11/2013 | WO2013052064A1 Re-latch mechanism for wellbore liner system |
| 04/11/2013 | CA2849880A1 Re-latch mechanism for wellbore liner system |
| 04/10/2013 | EP2576968A1 Method and apparatus for use in well abandonment |
| 04/10/2013 | CN202866713U Special sleeve dislocation eccentric correct setting hanger for repairing sleeves of horizontal well |
| 04/10/2013 | CN202866707U Sand preventing hydraulic anchor |
| 04/10/2013 | CN202866706U Nonmetal anchoring device |
| 04/10/2013 | CN202866705U Rotary setting release tool capable of being used by both hanger and packer |
| 04/10/2013 | CN202866704U Self-seal rotating type sand prevention oil pipe anchoring device |
| 04/10/2013 | CN202866703U Movable type lift dismounting frame |
| 04/10/2013 | CN202866702U Safe release tool for horizontal well |
| 04/10/2013 | CN202866701U Releasing tool used for releasing tubular column |
| 04/10/2013 | CN202866700U High strength releasing tool |
| 04/10/2013 | CN202866673U Clamping claw type release connector |
| 04/10/2013 | CN101636557B Measurement device in a horizontal well |
| 04/09/2013 | US8413730 Wellhead assembly with telescoping casing hanger |