| 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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| 02/28/2006 | US7004266 Adjustable downhole tool |
| 02/28/2006 | US7004264 Bore lining and drilling |
| 02/28/2006 | US7004260 Method of sealing an annulus |
| 02/28/2006 | US7004257 Apparatus and methods for separating and joining tubulars in a wellbore |
| 02/28/2006 | US7004250 Sealing system for the interspace in the transition region between two well pipes of different diameters, and mounting tool for this |
| 02/23/2006 | WO2006020809A2 Expandable tubular member having variable material properties |
| 02/23/2006 | US20060037759 Expandable whipstock anchor assembly |
| 02/23/2006 | CA2577067A1 Radial expansion system |
| 02/23/2006 | CA2576985A1 Hydroforming method and apparatus |
| 02/22/2006 | CN1738961A Wellstring assembly |
| 02/21/2006 | US7000705 Hydraulic setting tool with pressure multiplier |
| 02/21/2006 | US7000704 Latch profile installation in existing casing |
| 02/21/2006 | US7000695 Expanding wellbore junction |
| 02/21/2006 | US7000692 Apparatus and methods for placing downhole tools in a wellbore |
| 02/21/2006 | CA2355571C Deep well instrumentation |
| 02/16/2006 | US20060032639 System for Loading Executable Code into Volatile Memory in a Downhole Tool |
| 02/16/2006 | DE102004027048B3 Verfahren und Vorrichtung zum Einbringen von geophysikalischen Messkabeln in horizontale und vertikale Bohrlöcher Method and apparatus for the introduction of cables in geophysical measuring horizontal and vertical boreholes |
| 02/15/2006 | EP1626157A1 Deformable seal (div) |
| 02/14/2006 | US6997252 Hydraulic setting tool for packers |
| 02/14/2006 | CA2414358C Deformable wall of a tubular |
| 02/14/2006 | CA2357539C Downhole gauge carrier apparatus |
| 02/14/2006 | CA2180881C Packer type groundwater sampling system and water sampling method |
| 02/09/2006 | US20060027378 Multi-string production packer |
| 02/09/2006 | US20060027376 Expandable tubing and method |
| 02/08/2006 | CN2756818Y Packing box support clip |
| 02/07/2006 | CA2385892C Packer releasing system |
| 02/07/2006 | CA2374179C Collet cone slip system for releasably securing well tools |
| 02/07/2006 | CA2373720C Well tool anchor and method of releasing gripping elements |
| 02/07/2006 | CA2354269C High load, thin slip system |
| 02/07/2006 | CA2205334C Vent valve |
| 02/02/2006 | WO2006010877A1 System and method for drilling wellbores |
| 02/02/2006 | CA2572779A1 System and method for drilling wellbores |
| 02/01/2006 | EP0906490B1 Downhole apparatus |
| 02/01/2006 | CN2755269Y Hydraulic device with pawl spring locking for packer |
| 02/01/2006 | CN2755268Y Harmless oil pipe anchor for oil leakage |
| 02/01/2006 | CN1727636A Method and system for accessing subterranean deposits from the surface |
| 02/01/2006 | CN1239808C Electroreleasing device |
| 01/31/2006 | CA2336421C Gripper assembly for downhole tools |
| 01/31/2006 | CA2234556C Hydraulic setting tool |
| 01/31/2006 | CA2120484C Gravel packing system |
| 01/26/2006 | US20060016607 Arctic platform method |
| 01/25/2006 | EP1619352A1 Method and system for accessing subterranean deposits from the surface |
| 01/25/2006 | EP1618283A1 Well string assembly |
| 01/25/2006 | EP1618281A1 Mandrel for a gas lift valve |
| 01/24/2006 | US6989764 Apparatus and method for downhole well equipment and process management, identification, and actuation |
| 01/24/2006 | US6988557 Self sealing expandable inflatable packers |
| 01/24/2006 | US6988556 Deep set safety valve |
| 01/24/2006 | CA2406259C Downhole tool apparatus with non-metallic components and methods of drilling thereof |
| 01/24/2006 | CA2361789C An arrangement and method for deploying downhole tools |
| 01/24/2006 | CA2246186C Methods of completing and producing a subterranean well and associated apparatus |
| 01/19/2006 | US20060011340 Tubular expansion apparatus and method |
| 01/18/2006 | EP1297240B1 A method for drilling with casing |
| 01/18/2006 | EP0948700B1 Whipstock |
| 01/18/2006 | CN1723406A System and method for deploying an optical fiber in a well |
| 01/18/2006 | CN1723331A A cable duct device in a swelling packer |
| 01/17/2006 | US6986390 Expandable packer with anchoring feature |
| 01/17/2006 | US6986389 Adjustable deployment apparatus for an actively clamped tubing-conveyed in-well seismic station |
| 01/12/2006 | WO2006003477A2 Intervention rod |
| 01/12/2006 | US20060005973 Coupling and sealing tubulars in a bore |
| 01/12/2006 | US20060005963 Downhole plug |
| 01/12/2006 | CA2572866A1 Method and system for inserting a fiber optical sensing cable into an underwater well |
| 01/12/2006 | CA2572703A1 Intervention rod |
| 01/10/2006 | US6983796 Method of providing hydraulic/fiber conduits adjacent bottom hole assemblies for multi-step completions |
| 01/10/2006 | CA2278933C Tool and method for drilling a lateral well |
| 01/05/2006 | WO2006001974A2 Pressure monitoring of control lines for tool position feedback |
| 01/05/2006 | WO2005108741B1 Tool trap assembly and method |
| 01/05/2006 | US20060000620 Isolation tool |
| 01/05/2006 | US20060000618 Line Slack Compensator |
| 01/05/2006 | US20060000617 Coupling and sealing tubulars in a bore |
| 01/05/2006 | US20060000614 Surface controlled subsurface lateral branch safety valve |
| 01/04/2006 | EP1611312A1 Drifting tubing |
| 01/04/2006 | EP1412605A4 Improved stabilizer for use in a drill string |
| 01/03/2006 | US6981550 Sonde |
| 01/03/2006 | US6981547 Wire lock expandable connection |
| 01/03/2006 | CA2316467C Dynamic pressure device for oil drill systems |
| 12/29/2005 | WO2005124103A2 Apparatus and methods for positioning in a borehole |
| 12/29/2005 | US20050284637 Methods of treating subterranean formations using low-molecular-weight fluids |
| 12/29/2005 | US20050284635 Firing head with detonation gas release activation |
| 12/29/2005 | CA2570364A1 Apparatus and methods for positioning in a borehole |
| 12/28/2005 | EP1608839A2 Method and apparatus to complete a well having tubing inserted through a valve |
| 12/28/2005 | EP1485567A4 Mono-diameter wellbore casing |
| 12/28/2005 | EP1412607B1 Downhole motor lock-up tool |
| 12/28/2005 | EP1290311B1 Sequential hydraulic control system for use in subterranean well |
| 12/28/2005 | CN2748629Y Liner hanger for drilling completion operation |
| 12/27/2005 | US6978842 Volume compensated shifting tool |
| 12/27/2005 | US6978841 Sand removal and device retrieval tool |
| 12/27/2005 | US6978830 Downhole latch |
| 12/27/2005 | CA2269876C Underbalanced drill string deployment valve method and apparatus |
| 12/22/2005 | WO2005100740A3 Flapper opening mechanism |
| 12/22/2005 | US20050279514 Expandable downhole tubing |
| 12/22/2005 | US20050279511 Method and apparatus for deploying a line in coiled tubing |
| 12/22/2005 | US20050279510 Method and System to Deploy Control Lines |
| 12/22/2005 | US20050279503 Slickline power control interface |
| 12/22/2005 | US20050279498 Apparatus and methods for positioning in a borehole |
| 12/22/2005 | US20050279494 Logging Plug with High Integrity Internal Seal |
| 12/21/2005 | EP1295011B1 Apparatus and method to complete a multilateral junction |
| 12/21/2005 | EP0862682B1 Autonomous downhole oilfield tool |
| 12/21/2005 | CN1711405A Downhole hydraulic control line connector |
| 12/20/2005 | US6977367 Providing a light cell in a wellbore |
| 12/20/2005 | US6976539 Tubing anchor |