| 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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| 02/03/2011 | WO2011014565A2 Liner expansion system with a recoverable shoe assembly |
| 02/03/2011 | US20110024135 Liner Expansion System with a Recoverable Shoe Assembly |
| 02/03/2011 | US20110024134 Expansion Device |
| 02/03/2011 | US20110024133 Method and apparatus for releasing a coiled tubing internal conduit from a bottom hole assembly |
| 02/03/2011 | US20110024106 Ball Catcher with Retention Capability |
| 02/02/2011 | CN201730571U Integrated installation and pressure test tool |
| 02/02/2011 | CN201730570U Hydraulic rotation hoisting device for logging |
| 02/01/2011 | US7878255 Method of activating a downhole tool assembly |
| 02/01/2011 | US7878253 Hydraulically released window mill |
| 02/01/2011 | US7878240 Downhole swaging system and method |
| 01/31/2011 | CA2790056A1 Method and apparatus for releasing a coiled tubing internal conduit from a bottom hole assembly |
| 01/31/2011 | CA2711320A1 Method and apparatus for releasing a coiled tubing internal conduit from a bottom hole assembly |
| 01/27/2011 | WO2011010934A1 Internal conduit vehicle having a through passage |
| 01/27/2011 | WO2010114592A3 Anchor and hydraulic setting assembly |
| 01/27/2011 | WO2008087281A3 Measuring system and method for a horizontal shaft |
| 01/27/2011 | US20110017472 Vented plug assemblies for wellbores |
| 01/26/2011 | EP2278119A2 Drifting tubing |
| 01/26/2011 | CN201723189U Multi-path releasing device |
| 01/25/2011 | US7874371 Subsurface lubricator and method of use |
| 01/25/2011 | CA2626487C Expandable liner hanger with bypass |
| 01/25/2011 | CA2610320C Casing shoe |
| 01/25/2011 | CA2504988C Tubular expansion fluid production assembly and method |
| 01/25/2011 | CA2498914C Expandable anchor |
| 01/20/2011 | WO2010128292A3 Downhole material delivery |
| 01/20/2011 | WO2010128291A3 Downhole tool |
| 01/20/2011 | WO2010128287A3 Downhole tool |
| 01/20/2011 | US20110011579 Apparatus and System to Allow Tool Passage Ahead of a Bit |
| 01/20/2011 | US20110011578 Expansion System for Expandable Tubulars |
| 01/20/2011 | US20110011577 Sand control screen assembly and method for use of same |
| 01/20/2011 | CA2820193A1 Downhole casing cutting tool |
| 01/19/2011 | EP2274500A2 Jointed spearhead assembly |
| 01/19/2011 | EP2153015B1 Downhole flow control tool and method |
| 01/19/2011 | CN101952541A Ball dropping assembly and technique for use in a well |
| 01/19/2011 | CN101949280A Anti-scaling and anti-sand device connected with oil pumping tubing string into whole and application method |
| 01/18/2011 | US7870896 Extended wear ball lock for rotating head |
| 01/18/2011 | US7870895 Packer |
| 01/18/2011 | CA2596094C Improved milling of cemented tubulars |
| 01/13/2011 | WO2011006173A2 Non-collapsing built in place adjustable swage |
| 01/13/2011 | WO2011005750A2 Fracturing system and method |
| 01/13/2011 | WO2011005694A2 Motion transfer from a sealed housing |
| 01/13/2011 | WO2011005519A2 Downhole tool with roller screw assembly |
| 01/13/2011 | WO2010120469A3 Open hole frac system |
| 01/13/2011 | WO2010111368A3 Control line retention and method for retaining control line |
| 01/13/2011 | WO2010111076A3 Well tools utilizing swellable materials activated on demand |
| 01/13/2011 | WO2010105067A3 Anchoring system and method |
| 01/13/2011 | US20110006150 Method for automatic slip clutch tension on a reel |
| 01/13/2011 | US20110006149 Method for automatic cable tension on a reel |
| 01/13/2011 | US20110005779 Composite downhole tool with reduced slip volume |
| 01/13/2011 | US20110005778 Method and system for anchoring and isolating a wellbore |
| 01/13/2011 | US20110005777 Tool storage assembly |
| 01/13/2011 | CA2767293A1 Apparatus and methods for sealing subterranean borehole and performing other cable downhole rotary operations |
| 01/12/2011 | EP2273064A1 Procedures and equipment for profiling and jointing of pipes |
| 01/12/2011 | EP2273062A2 Method and apparatus to complete a well having tubing inserted through a valve |
| 01/12/2011 | EP2271818A2 Braking devices and methods for use in drilling operations |
| 01/12/2011 | CN201705254U Hydraulic booster for pipe string unpacking |
| 01/12/2011 | CN201705253U Fully hydraulic controlled liner hanger |
| 01/12/2011 | CN201705252U Hydraulic expansion type rotating liner hanger |
| 01/12/2011 | CN201705227U Inflation tail pipe hanger safety releasing mechanism |
| 01/11/2011 | CA2494229C Adjustable downhole tool |
| 01/06/2011 | WO2010084353A3 Apparatus and method for setting a downhole anchor and related telescopic joint |
| 01/06/2011 | WO2009014932A3 Apparatus and methods to perform operations in a wellbore using downhole tools having movable sections |
| 01/06/2011 | US20110000683 Deployment of a wireline tool |
| 01/06/2011 | US20110000664 Non-collapsing Built in Place Adjustable Swage |
| 01/06/2011 | US20110000662 Motion Transfer from a Sealed Housing |
| 01/06/2011 | US20110000660 Modular valve body and method of making |
| 01/05/2011 | CN201695973U Hydraulic tail pipe releaser for oil gas well |
| 01/04/2011 | US7861775 Casing patch |
| 01/04/2011 | US7861773 Retrievable bridge plug |
| 01/04/2011 | CA2642858C Millable pre-installed plug in box and pin connection |
| 01/04/2011 | CA2629591C Permanent anchoring device |
| 01/04/2011 | CA2467377C Collapsible expansion cone |
| 01/04/2011 | CA2441814C Tubing seal |
| 12/30/2010 | US20100326675 High-Pressure/High Temperature Packer Seal |
| 12/30/2010 | US20100326674 Torque-Provider |
| 12/30/2010 | US20100326673 Work string controller |
| 12/30/2010 | US20100326664 Running Tool That Prevents Seal Test |
| 12/30/2010 | US20100326653 Work String Controller |
| 12/30/2010 | US20100326652 Work String Controller |
| 12/29/2010 | WO2010151905A2 High pressure/high temperature packer seal |
| 12/29/2010 | CN201687422U Self-seal lifting type tubing anchor device |
| 12/29/2010 | CN201687421U Device for fixing mining sensor on cable |
| 12/29/2010 | CN101932791A Systems, methods, and devices for isolating portions of a wellhead from fluid pressure |
| 12/29/2010 | CN101929330A Remote control cock type steel ball delivery system |
| 12/28/2010 | US7857066 Downhole tools utilizing electroactive polymers for actuating release mechanisms |
| 12/28/2010 | US7857064 Insert sleeve forming device for a recess shoe |
| 12/28/2010 | US7857058 Downhole swivel joint assembly and method of using said swivel joint assembly |
| 12/28/2010 | US7857045 Torque transfer arrangement and method |
| 12/23/2010 | WO2010148316A2 Dual anchoring tubular back-off tool |
| 12/23/2010 | WO2010148301A2 Downhole tools and methods of setting in a wellbore |
| 12/23/2010 | WO2010147954A2 Weakpoint coupling of selectively adjustable load bearing capacity |
| 12/23/2010 | US20100319935 Method and device for a running tool |
| 12/23/2010 | US20100319934 Downhole tools and methods of setting in a wellbore |
| 12/23/2010 | US20100319933 System and method of displacing fluids in an annulus |
| 12/23/2010 | US20100319930 Time-Controlled Release Device for Wireline Conveyed Tools |
| 12/23/2010 | CA2766053A1 Dual anchoring tubular back-off tool |
| 12/23/2010 | CA2765505A1 Weakpoint coupling of selectively adjustable load bearing capacity |
| 12/23/2010 | CA2763799A1 Downhole tools and methods of setting in a wellbore |
| 12/22/2010 | EP2262977A1 Systems, assemblies and processes for controlling tools in a well bore |
| 12/22/2010 | CN201679470U Underground split-injection extruding type pressure feeding head |
| 12/22/2010 | CN201679469U Water injection well layering positioner |