| 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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| 02/23/2012 | WO2012024041A1 Retractable downhole backup assembly for circumferential seal support |
| 02/23/2012 | US20120043134 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 02/23/2012 | US20120043094 Packoff With Internal Lockdown Mechanism |
| 02/23/2012 | CA2807512A1 Retractable petal collet backup for a subterranean seal |
| 02/23/2012 | CA2807485A1 Retractable downhole backup assembly for circumferential seal support |
| 02/21/2012 | USRE43198 Tangentially-loaded high-load retrievable slip system |
| 02/21/2012 | CA2616055C System and methods for tubular expansion |
| 02/20/2012 | CA2713973A1 Ball catcher with retention capability |
| 02/16/2012 | WO2012021555A2 Fill up tool |
| 02/16/2012 | WO2012021126A1 Automated controls for pump down operations |
| 02/16/2012 | US20120037381 Anchor for use with expandable tubular |
| 02/16/2012 | US20120037374 Plug removal and setting system |
| 02/16/2012 | US20120037362 Fluid metering tool with feedback arrangement and method |
| 02/16/2012 | DE102010034325A1 Verdrehsicherung für Bohrlochpumpen Rotation for well pump |
| 02/16/2012 | CA2807650A1 Fill up tool |
| 02/16/2012 | CA2805732A1 Automated controls for pump down operations |
| 02/15/2012 | CN202144733U 桥塞验封封隔器 Bridge plug inspection Packers |
| 02/15/2012 | CN202144731U 油气井尾管悬挂器内通径控制器 Bore wells within the controller liner hanger |
| 02/15/2012 | CN102352733A Method for anchoring oil pipe of thick oil well |
| 02/15/2012 | CN102352731A Downhole tubular column lifting device capable of transmitting torque in whole course |
| 02/09/2012 | WO2012018830A1 Dynamic barrier for thermal rock cutting |
| 02/09/2012 | US20120031681 Downhole tool housing |
| 02/09/2012 | US20120031608 Filler Rings for Swellable Packers |
| 02/08/2012 | EP2415963A2 Anchor for use with expandable tubular |
| 02/08/2012 | EP2414626A1 Liner hanger |
| 02/08/2012 | EP2414623A2 Lining of wellbore tubing |
| 02/08/2012 | EP2414622A2 Anchor and hydraulic setting assembly |
| 02/08/2012 | CN202140062U 液压免钻尾管悬挂封隔器 Hydraulic drill-free liner hanger packer |
| 02/08/2012 | CN202140054U 油气井尾管同步转动控制器 Oil and gas wells tailpipe synchronous rotation controller |
| 02/08/2012 | CN202140053U 细径防卡投捞器 Small-diameter anti-card and pulling devices |
| 02/08/2012 | CN102348865A Well tools utilizing swellable materials activated on demand |
| 02/08/2012 | CN102345448A Apparatus and method for depth referencing downhole tubular strings |
| 02/07/2012 | US8109340 High-pressure/high temperature packer seal |
| 02/07/2012 | US8109339 Zero backlash downhole setting tool and method |
| 02/07/2012 | US8109333 Indicator and method |
| 02/05/2012 | CA2748153A1 Anchor for use with expandable tubular |
| 02/02/2012 | WO2012015927A2 Downhole seal and method of lubricating a downhole tool |
| 02/02/2012 | WO2012015879A1 Hard bottom cement seal for improved well control |
| 02/02/2012 | US20120024545 Installation of tubular strings with lines secured thereto in subterranean wells |
| 02/02/2012 | US20120024543 Electric submersible pump, tubing and method for borehole production |
| 02/02/2012 | US20120024542 Hanger floating ring and seal assembly system and method |
| 02/02/2012 | US20120024541 Drill Pipe Running Tool |
| 02/02/2012 | US20120024540 Tubing Hanger Assembly with Single Trip Internal Lock Down Mechanism |
| 02/02/2012 | US20120024539 Rotary coil tubing drilling and completion technology |
| 02/02/2012 | US20120024521 Hydraulic lubricator for use at a wellhead |
| 02/02/2012 | CA2806109A1 Downhole seal and method of lubricating a downhole tool |
| 02/02/2012 | CA2805626A1 Hard bottom cement seal for improved well control |
| 02/01/2012 | EP2411622A2 Well tools utilizing swellable materials activated on demand |
| 02/01/2012 | EP2411620A2 Control line retention and method for retaining control line |
| 01/26/2012 | WO2012011993A1 Methods for stimulating multi-zone wells |
| 01/26/2012 | WO2011077218A3 Automatic modular maintenance device operating in the annulus of a well for the production of hydrocarbons |
| 01/26/2012 | US20120018173 Wellbore tool with exhangable blades |
| 01/26/2012 | US20120018172 Liner hanger fluid diverter tool and related methods |
| 01/26/2012 | US20120018164 Clamp for a well tubular |
| 01/25/2012 | CN202125268U Sleeve tube pressure valve replacing mechanical device |
| 01/24/2012 | US8100188 Setting tool for expandable liner hanger and associated methods |
| 01/24/2012 | US8100187 Multipurpose tubular running tool |
| 01/24/2012 | US8100186 Expansion system for expandable tubulars and method of expanding thereof |
| 01/24/2012 | CA2693370C Apparatus and methods to perform operations in a wellbore using downhole tools having movable sections |
| 01/24/2012 | CA2653100C Consumable downhole tools |
| 01/24/2012 | CA2611294C Torque anchor and method for using same |
| 01/19/2012 | WO2012009046A1 Selective and non-selective lock mandrel assembly having upward biased inner sleeve |
| 01/19/2012 | US20120012398 Expandable Tool with at least One Blade that Locks in Place through a Wedging Effect |
| 01/19/2012 | US20120012397 Expandable Tool for an Earth Boring System |
| 01/19/2012 | US20120012338 Selective and non-selective lock mandrel assembly having upward biased inner sleeve |
| 01/19/2012 | US20120012337 Crawler System for an Earth Boring System |
| 01/19/2012 | US20120012329 Method of fixing a broken oil pipe |
| 01/19/2012 | US20120012310 Apparatus and methods for deploying equipment at a wellsite |
| 01/19/2012 | US20120012306 Retrievable slip mechanism for downhole tool |
| 01/19/2012 | US20120012305 Downhole C-Ring Slip Assembly |
| 01/19/2012 | CA2805164A1 Selective and non-selective lock mandrel assembly having upward biased inner sleeve |
| 01/18/2012 | EP2407633A2 Downhole packer having tandem packer elements for isolating frac zones |
| 01/18/2012 | EP2407632A2 Downhole packer having swellable sleeve |
| 01/18/2012 | CN202117602U Hydraulic anchor for continuous oil pipe |
| 01/18/2012 | CN202117601U Synchronous limit anchor for packer |
| 01/18/2012 | CN202117600U Direct control dropping and fishing device |
| 01/18/2012 | CN202117599U High strength large pump tripping device |
| 01/17/2012 | CA2669776C Downhole tool operated by shape memory material springs |
| 01/17/2012 | CA2493698C System and method for utilizing nano-scale filler in downhole applications |
| 01/12/2012 | WO2012006327A2 Fiber support arrangement and method |
| 01/12/2012 | WO2012005874A2 Mitigating leaks in production tubulars |
| 01/12/2012 | WO2012005871A2 Packing element system with profiled surface |
| 01/12/2012 | US20120006567 Deep water drilling with casing |
| 01/12/2012 | US20120006566 Fiber support arrangement and method |
| 01/12/2012 | CA2804397A1 Fiber support arrangement and method |
| 01/12/2012 | CA2803450A1 Mitigating leaks in production tubulars |
| 01/11/2012 | CN202108445U Flexible drill-free self-grouting sealing box structure for tail pipe hanger |
| 01/11/2012 | CN202108444U Recycling type hanger for sleeve well drilling |
| 01/11/2012 | CN202108443U Underwater well head placing tool applied to well drilling in ocean deepwater |
| 01/11/2012 | CN202108442U Optimized simulator of patching tube release |
| 01/11/2012 | CN202108441U Hanging device of oil sleeve |
| 01/11/2012 | CN202108440U Underground positioning device used in oil drilling |
| 01/11/2012 | CN202108439U 丢手工具 Throw hand tools |
| 01/11/2012 | CN102312667A Concentric pipe layered steam injection system and method |
| 01/10/2012 | US8091648 Direct connecting downhole control system |
| 01/10/2012 | US8091647 Means of preventing marine fouling of subsea connectors |
| 01/10/2012 | US8091631 Intelligent well system and method |
| 01/10/2012 | US8091628 Apparatus and method for providing fluid and projectiles to downhole tubulars |
| 01/10/2012 | CA2723012C Apparatus and method for drilling a wellbore with casing and cementing the casing in the wellbore |
| 01/10/2012 | CA2660505C Methods and apparatus for a downhole tool |