| 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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| 12/20/2005 | US6976533 Method and system for accessing subterranean deposits from the surface |
| 12/20/2005 | CA2385757C Method and apparatus for multilateral well entry |
| 12/20/2005 | CA2373734C Downhole anti-rotation tool |
| 12/20/2005 | CA2357034C Gravel pack expanding valve |
| 12/20/2005 | CA2196352C Activation of downhole tools |
| 12/20/2005 | CA2142114C Multi-lateral selective re-entry tool |
| 12/18/2005 | CA2510212A1 Method and system to deploy control lines |
| 12/15/2005 | WO2005119002A1 Continuous positive flow backflash prevention system |
| 12/15/2005 | WO2005119001A1 Separation of evolved gases from drilling fluids in a drilling operation |
| 12/15/2005 | WO2005118904A2 Case hardened stainless steel oilfield tool |
| 12/15/2005 | US20050274518 Separable plug for use in a wellbore |
| 12/15/2005 | US20050274511 Separable plug for use with a wellbore tool |
| 12/15/2005 | CA2565939A1 Separation of evolved gases from drilling fluids in a drilling operation |
| 12/14/2005 | EP1173655B1 Ribbed sealing element and method of use |
| 12/14/2005 | CN1708630A Once-through well completion |
| 12/13/2005 | US6973974 Valves for use in wells |
| 12/13/2005 | CA2359450C Expandable tubing and method |
| 12/13/2005 | CA2285767C Indexing mechanism and apparatus incorporating the same |
| 12/13/2005 | CA2151092C Firing head connected between a coiled tubing and a perforating gun adapted to move freely within a tubing string and actuated by fluid pressure in the coiled tubing |
| 12/09/2005 | CA2470562A1 Firing head with detonation gas release activation |
| 12/08/2005 | WO2005116484A2 Chain drive system |
| 12/08/2005 | WO2005116395A2 Hydraulically set concentric packer with multiple umbilical bypass through the piston |
| 12/08/2005 | WO2005116389A1 Apparatus and method for setting a tubing anchor and tensioning a tubing string thereabove |
| 12/08/2005 | WO2005116387A2 Deployment system |
| 12/08/2005 | WO2005115664A1 Perimetrically loading collet |
| 12/08/2005 | US20050269138 Spearhead assembly |
| 12/08/2005 | US20050269137 Separation of evolved gases from drilling fluids in a drilling operation |
| 12/08/2005 | US20050269135 Continuous positive flow backflash prevention system |
| 12/08/2005 | US20050269107 Mono-diameter wellbore casing |
| 12/08/2005 | US20050269106 Apparatus and methods for operating a tool in a wellbore |
| 12/08/2005 | US20050269105 Apparatus for facilitating the connection of tubulars using a top drive |
| 12/08/2005 | US20050269103 Deep set safety valve |
| 12/08/2005 | US20050269083 Onboard navigation system for downhole tool |
| 12/08/2005 | US20050269074 Case hardened stainless steel oilfield tool |
| 12/08/2005 | US20050269073 Wellbore anchor tool |
| 12/07/2005 | EP1478824A4 Well system |
| 12/07/2005 | EP1472433A4 Non-seize material attachment for a drill slip system |
| 12/07/2005 | CN2744825Y Polish rod thread-off preventing device |
| 12/06/2005 | US6971457 Moldable fabric |
| 12/06/2005 | US6971447 Vent screen pressure deployment tool and method of use |
| 12/06/2005 | CA2260934C Improved emergency release tool |
| 12/01/2005 | WO2005113931A1 Method and device for introducing geophysical measuring cables into horizontal and vertical boreholes |
| 12/01/2005 | US20050263325 Chain drive system |
| 12/01/2005 | US20050263296 Deformable member |
| 12/01/2005 | US20050263293 Apparatus and method for setting a tubing anchor and tensioning tubing string thereabove |
| 12/01/2005 | US20050263282 Well abandonment apparatus |
| 12/01/2005 | US20050263280 Method and apparatus for anchoring tool in borehole conduit |
| 12/01/2005 | US20050263279 Pressure monitoring of control lines for tool position feedback |
| 11/30/2005 | EP1507954B1 A downhole tool for use in a wellbore |
| 11/30/2005 | CN1703566A Cement through side pocket mandrel |
| 11/29/2005 | US6968904 Method and apparatus for operations in underground/subsea oil and gas wells |
| 11/29/2005 | US6968897 Anti-rotation tool |
| 11/29/2005 | US6968618 Expandable connector |
| 11/29/2005 | CA2403948C Apparatus and method for downhole well equipment and process management,identification, and actuation |
| 11/29/2005 | CA2387592C Drillable inflatable packer and methods of use |
| 11/29/2005 | CA2216518C Whipstock |
| 11/26/2005 | CA2508502A1 Apparatus and method for setting a tubing anchor and tensioning a tubing string thereabove |
| 11/24/2005 | WO2005111370A2 Improved flexible cup for downhole devices |
| 11/24/2005 | US20050257935 Perimetrically loading collet |
| 11/24/2005 | US20050257928 Hydraulically set concentric packer with multiple umbilical bypass through the piston |
| 11/23/2005 | EP1252440B1 Controlling activation of devices |
| 11/23/2005 | CN1701160A Device for installation of a profile liner in a well |
| 11/22/2005 | US6966380 Valves for use in wells |
| 11/22/2005 | CA2409304C Composite spoolable tube |
| 11/22/2005 | CA2321536C Composite spoolable tube |
| 11/17/2005 | WO2005108833A1 Multiple line administration |
| 11/17/2005 | WO2005108832A1 In-line multi-port selector valve |
| 11/17/2005 | WO2005108741A1 Tool trap assembly and method |
| 11/17/2005 | WO2005108734A1 Ultrashort radius drilling apparatus and method |
| 11/17/2005 | WO2004094766A3 Apparatus for radially expanding and plastically deforming a tubular member |
| 11/17/2005 | US20050252688 Drilling method |
| 11/17/2005 | US20050252686 Electrically sequenced tractor |
| 11/17/2005 | US20050252662 Apparatus and method for expanding a tubular |
| 11/17/2005 | US20050252652 Sonde |
| 11/17/2005 | CA2573841A1 In-line multi-port selector valve |
| 11/17/2005 | CA2563081A1 Tool trap assembly and method |
| 11/16/2005 | EP1234091B1 Downhole device |
| 11/16/2005 | EP0852653B1 Method and apparatus for selective horizontal well re-entry using retrievable diverter oriented by logging means |
| 11/15/2005 | CA2325394C A system and method for locating a tool in a wellbore, a tubular and a device for the system |
| 11/15/2005 | CA2309054C Flexible sinker bar assemblies |
| 11/15/2005 | CA2210668C Method and related apparatus for retrieving a rotary pump from a wellbore |
| 11/15/2005 | CA2140236C Liner tie-back sleeve |
| 11/10/2005 | WO2005106186A1 Valve seat |
| 11/10/2005 | WO2004092528A3 Apparatus for radially expanding and plastically deforming a tubular member |
| 11/10/2005 | WO2004076797A3 Method and apparatus to complete a well having tubing inserted through a valve |
| 11/10/2005 | US20050247489 Drilling apparatus |
| 11/10/2005 | US20050247488 Roller link toggle gripper and downhole tractor |
| 11/10/2005 | US20050247457 Method and apparatus for manufacturing an expandable slotted tube |
| 11/10/2005 | US20050247453 Magnetic impulse applied sleeve method of forming a wellbore casing |
| 11/10/2005 | US20050247448 Flexible cup for downhole devices |
| 11/09/2005 | EP1592863A1 Improved downhole apparatus |
| 11/09/2005 | EP1131535B1 Method and system for accessing subterranean deposits from the surface |
| 11/09/2005 | CN2739346Y External-pipe packer sealing tool |
| 11/08/2005 | USRE38866 Pressure-boost device for downhole tools |
| 11/03/2005 | WO2005103442A1 Plug setting and retrieving apparatus |
| 11/03/2005 | WO2005103440A2 Deploying an assembly into a well |
| 11/03/2005 | US20050241836 Tubing string anchoring tool |
| 11/03/2005 | US20050241835 Self-activating downhole tool |
| 11/03/2005 | US20050241831 Anchor for branch wellbore liner |
| 11/03/2005 | US20050241825 Downhole tool with navigation system |