| 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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| 03/03/2005 | WO2004023014A3 Threaded connection for expandable tubulars |
| 03/03/2005 | US20050045341 Radial expansion of tubular members |
| 03/03/2005 | US20050045338 Safety mechanism for weight-set downhole tool |
| 03/03/2005 | US20050045333 Bearing assembly for a progressive cavity pump and system for liquid lower zone disposal |
| 03/03/2005 | US20050045329 Intelligent well system and method |
| 03/03/2005 | US20050045324 Radial expansion of tubular members |
| 03/02/2005 | EP1040250B1 System and method for positioning a tool in a wellbore |
| 03/02/2005 | CN1191421C Lock assembly |
| 03/01/2005 | US6860330 Choke valve assembly for downhole flow control |
| 03/01/2005 | US6860329 Apparatus for and method of including a packer to facilitate anchoring a first conduit to a second conduit |
| 03/01/2005 | US6860326 Packer releasing methods |
| 03/01/2005 | US6860320 Bottom member and heat loops |
| 03/01/2005 | CA2367650C Apparatus comprising expandable bistable tubulars and methods for their use in wellbores |
| 03/01/2005 | CA2292541C Electro-hydraulic well tool actuator |
| 02/24/2005 | WO2004066000A3 System and method for deploying an optical fiber in a well |
| 02/24/2005 | WO2004026500B1 Self-lubricating expansion mandrel for expandable tubular |
| 02/24/2005 | WO2002075104A8 Downhole tool |
| 02/24/2005 | US20050039928 Radial expansion of tubular members |
| 02/24/2005 | US20050039927 Intelligent well system and method |
| 02/24/2005 | US20050039925 Downhole ball drop tool |
| 02/24/2005 | US20050039908 Sealing system for the interspace in the transition region between two well pipes of different diameters, and mounting tool for this |
| 02/23/2005 | EP1508667A2 Sand removal and device retrieval tool |
| 02/23/2005 | EP1508666A2 Method and apparatus for completing wells with lateral branches |
| 02/23/2005 | EP1507954A1 A downhole tool for use in a wellbore |
| 02/23/2005 | CN1585851A Non-seize material of drill stem clamp system |
| 02/22/2005 | US6857486 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 02/22/2005 | US6857475 Apparatus and methods for flow control gravel pack |
| 02/22/2005 | CA2167491C Safeguarded method and apparatus for fluid communication using coiled tubing, with application to drill stem testing |
| 02/22/2005 | CA2157120C Heat activated ballistic blocker |
| 02/17/2005 | WO2005003506A3 Method of deploying and powering an electrically driven device in a well |
| 02/17/2005 | US20050034876 Expandable packer with anchoring feature |
| 02/17/2005 | US20050034875 Valves for Use in Wells |
| 02/17/2005 | US20050034874 Open hole tractor with tracks |
| 02/17/2005 | US20050034873 Placing fiber optic sensor line |
| 02/16/2005 | CN2679347Y Composite elastic intersecting, positioning orientating hanger for multiple slopes of well |
| 02/15/2005 | CA2223669C Retrievable milling guide anchor apparatus and associated methods |
| 02/10/2005 | WO2005012689A1 System and method for placing a braided, tubular sleeve in a well bore |
| 02/10/2005 | US20050029017 Well string assembly |
| 02/10/2005 | US20050028989 Expandable packer with anchoring feature |
| 02/10/2005 | US20050028988 Radial expansion of tubular members |
| 02/09/2005 | EP1505251A2 Drilling method |
| 02/09/2005 | CN2677595Y Lifting hydraulic cartridge container hanger |
| 02/08/2005 | US6851491 Internal pressure indicator and locking mechanism for a downhole tool |
| 02/08/2005 | US6851475 Apparatus and methods for separating and joining tubulars in a wellbore |
| 02/08/2005 | CA2441672C Method and system for accessing subterranean deposits from the surface |
| 02/08/2005 | CA2441671C Method and system for accessing subterranean deposits from the surface |
| 02/08/2005 | CA2314061C Reservoir management system and method |
| 02/03/2005 | US20050023866 Non-rotational casing hanger and seal assembly running tool |
| 02/03/2005 | US20050023004 Alternative packer setting method |
| 02/03/2005 | US20050023002 System and methods for placing a braided tubular sleeve in a well bore |
| 02/03/2005 | US20050023000 Cement float |
| 02/03/2005 | US20050022987 Method and apparatus for improved communication in a wellbore utilizing acoustic signals |
| 02/03/2005 | US20050022986 Adjustable expansion cone assembly |
| 02/02/2005 | CN2675845Y Oil pipe anchor under pump |
| 02/02/2005 | CN1575370A Device for performing a downhole operation |
| 01/27/2005 | WO2005008023A1 Open hole tractor with tracks |
| 01/27/2005 | US20050016739 Tie back and method for use with expandable tubulars |
| 01/27/2005 | US20050016737 Packer releasing methods |
| 01/27/2005 | US20050016302 Traction apparatus |
| 01/27/2005 | CA2532134A1 Open hole tractor with tracks |
| 01/26/2005 | CN2674084Y Drop off-prevention rod clamp of beam unit load rod |
| 01/26/2005 | CN2674068Y Oil pipe column constant pressure stretching fixing means |
| 01/25/2005 | US6847034 Downhole sensing with fiber in exterior annulus |
| 01/25/2005 | US6845822 Auto-extending/retracting electrically isolated conductors in a segmented drill string |
| 01/25/2005 | US6845819 Down hole tool and method |
| 01/25/2005 | US6845817 Kick over tool for side pocket mandrel |
| 01/20/2005 | WO2005005764A2 Spiral tubular tool and method |
| 01/20/2005 | WO2004094775A3 Screen for blanking plug |
| 01/20/2005 | WO2004092633A3 Spoolable composite coiled tubing connector |
| 01/20/2005 | WO2004079151A3 Drilling with casing latch |
| 01/20/2005 | US20050012036 Providing a light cell in a wellbore |
| 01/19/2005 | EP1497526A2 Bi-directional thruster pig apparatus and method of utilizing same |
| 01/19/2005 | CN2672282Y Hydraulic force generator in well |
| 01/19/2005 | CN2672281Y Oil pipe column radial bias positioner |
| 01/19/2005 | CN2672280Y Self positioning hanger |
| 01/19/2005 | CN2672279Y Hydraulic shearing balance device |
| 01/19/2005 | CN2672278Y Safety anchoring device for small well hole |
| 01/18/2005 | US6843332 Three dimensional steerable system and method for steering bit to drill borehole |
| 01/18/2005 | US6843317 System and method for autonomously performing a downhole well operation |
| 01/18/2005 | US6843314 Retrievable through-tubing whipstock apparatus having fluid-responsive pivotal anchoring members |
| 01/18/2005 | CA2239280C Formation data sensing with deployed remote sensors during well drilling |
| 01/13/2005 | WO2005003508A1 Circulation tool |
| 01/13/2005 | WO2005003506A2 Method of deploying and powering an electrically driven device in a well |
| 01/13/2005 | WO2004026500A3 Self-lubricating expansion mandrel for expandable tubular |
| 01/13/2005 | US20050006107 One trip string tensioning and hanger securing method |
| 01/13/2005 | US20050006106 Hydraulic setting tool for liner hanger |
| 01/12/2005 | CN2670583Y Assembled casing prestressed anchor block |
| 01/11/2005 | CA2351095C Combined sealing and gripping unit for retrievable packers |
| 01/11/2005 | CA2218259C Motor drive actuator for downhole flow control devices |
| 01/06/2005 | WO2005001238A1 Device for arranging a shut-off valve in a well |
| 01/06/2005 | US20050000693 Release tool for coiled tubing |
| 01/06/2005 | US20050000692 Spiral tubular tool and method |
| 01/06/2005 | US20050000687 Device for performing a downhole operation |
| 01/05/2005 | CN2668832Y Side-drilling-well hydraulic tail-pipe suspension device |
| 01/05/2005 | CN2668831Y Longitudinal-transverse pressure-relieve self-locking wet joint assembly |
| 01/05/2005 | CN1560425A Method of removing sanding in pipe string and use of removing block apparatus thereof |
| 01/04/2005 | CA2286957C Caged slip system and release methods |
| 01/04/2005 | CA2149262C Hydraulic set liner hanger and method |
| 12/29/2004 | WO2004114487A1 Method and apparatus for deploying a line in coiled tubing |
| 12/29/2004 | EP1491714A2 Multilateral well drilling and completion method and appratus |