| 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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| 01/22/2004 | US20040011559 Stabilizer for use in a drill string |
| 01/22/2004 | US20040011533 Braking device for tool strings |
| 01/22/2004 | US20040011520 Downhole motor lock-up tool |
| 01/21/2004 | CN2600577Y Prestressed well cementing tool |
| 01/20/2004 | US6679341 Tractor with improved valve system |
| 01/20/2004 | CA2221406C Normally closed retainer valve with fail-safe pump through capability |
| 01/15/2004 | WO2004005968A2 Pulsed deployment of a cable through a conduit located in a well |
| 01/15/2004 | WO2003083333A3 Valve system and method |
| 01/15/2004 | WO2003002840A3 Improved stabilizer for use in a drill string |
| 01/15/2004 | US20040007391 Boring apparatus |
| 01/15/2004 | US20040007361 Bypass valve |
| 01/15/2004 | US20040007356 Indexing apparatus |
| 01/15/2004 | US20040007147 Inflatable gas bag for use as a borehole plug |
| 01/15/2004 | CA2490968A1 Pulsed deployment of a cable through a conduit located in a well |
| 01/14/2004 | CN2599213Y Bidirectional rotation slips oil pipe anchor |
| 01/13/2004 | US6675890 Packing device for oil wells |
| 01/13/2004 | US6675888 Method and system for moving equipment into and through an underground well |
| 01/07/2004 | EP0916014B1 Apparatus and method for milling a hole in casing |
| 01/06/2004 | US6672371 Earth heat exchange system |
| 01/06/2004 | CA2299398C Assembly and process for drilling and completing multiple wells |
| 01/06/2004 | CA2230185C Puller-thruster downhole tool |
| 01/06/2004 | CA2117085C Downhole activated system for perforating a wellbore |
| 01/02/2004 | EP1373678A1 Downhole axial force generating tool |
| 01/02/2004 | EP1373677A1 Running tool and wellbore component assembly |
| 01/01/2004 | US20040000406 Downhole surge reduction method and apparatus |
| 12/31/2003 | WO2004001177A2 Dockable direct mechanical actuator for downhole tools and method |
| 12/31/2003 | WO2002002900A8 Apparatus and method to complete a multilateral junction |
| 12/31/2003 | CN2595991Y Means for assembling/disassembing short joint of casing-pipe |
| 12/30/2003 | US6668936 Hydraulic control system for downhole tools |
| 12/30/2003 | US6668935 Valve for use in wells |
| 12/30/2003 | US6668921 Providing a conduit for an instrumentation line |
| 12/30/2003 | US6668918 Method and system for accessing subterranean deposit from the surface |
| 12/30/2003 | CA2151706C Method and apparatus for setting a whipstock |
| 12/25/2003 | US20030234110 Dockable direct mechanical actuator for downhole tools and method |
| 12/24/2003 | CN2594448Y Screw turbulent positioner |
| 12/23/2003 | US6666276 Downhole radial set packer element |
| 12/18/2003 | US20030230893 Spoolable composite coiled tubing connector |
| 12/17/2003 | EP1370891A1 Sonde |
| 12/16/2003 | CA2308813C Method of and apparatus for inserting tubing into a well bore |
| 12/16/2003 | CA2217356C Method and apparatus for drilling and re-entering multiple lateral branches in a well |
| 12/11/2003 | WO2003102365A1 System for radially expanding a tubular member |
| 12/11/2003 | WO2003102353A1 Drilling apparatus |
| 12/11/2003 | WO2003102349A2 Apparatus and methods for preventing axial movement of downhole tool assemblies |
| 12/11/2003 | WO2003101656A1 Method and apparatus for cutting tubulars |
| 12/11/2003 | US20030226664 Sand removal and device retrieval tool |
| 12/11/2003 | CA2487286A1 System for radially expanding a tubular member |
| 12/10/2003 | EP1368554A1 Expander for expanding a tubular element |
| 12/10/2003 | EP1368552A1 Downhole tool |
| 12/09/2003 | US6659200 Actuator assembly and method for actuating downhole assembly |
| 12/09/2003 | US6659186 Valve assembly |
| 12/09/2003 | US6659180 Deepwater intervention system |
| 12/04/2003 | WO2003100210A1 A downhole tool for use in a wellbore |
| 12/04/2003 | US20030222455 Expandable connector |
| 12/04/2003 | US20030221833 Apparatus and methods for preventing axial movement of downhole tool assemblies |
| 12/04/2003 | US20030221830 Re-enterable gravel pack system with inflate packer |
| 12/04/2003 | US20030221829 Well communication system |
| 12/03/2003 | EP1367217A2 Downhole apparatus |
| 12/03/2003 | CN2589664Y Oil pipe rotating machine |
| 12/02/2003 | US6655458 Formation testing instrument having extensible housing |
| 12/02/2003 | US6655456 Liner hanger system |
| 12/02/2003 | US6655453 Telemetering system |
| 12/02/2003 | US6655452 Downhole gauge carrier apparatus |
| 11/27/2003 | WO2003097992A1 Telemetering system |
| 11/27/2003 | WO2003097987A2 A device for a long well tool |
| 11/27/2003 | WO2003042486A3 Collapsible expansion cone |
| 11/27/2003 | US20030217886 Apparatus for detecting geophysical energy |
| 11/27/2003 | US20030217850 Downhole tool for use in a wellbore |
| 11/27/2003 | US20030217844 Deformable member |
| 11/27/2003 | CA2486653A1 Telemetering system |
| 11/26/2003 | CN1458385A Live pipeline valve replacer |
| 11/25/2003 | US6654216 Distributed monitoring and protection system for a distributed power network |
| 11/25/2003 | US6651749 Well tool actuators and method |
| 11/25/2003 | US6651747 Downhole anchoring tools conveyed by non-rigid carriers |
| 11/25/2003 | US6651744 Bi-directional thruster pig apparatus and method of utilizing same |
| 11/25/2003 | CA2225207C Single trip whipstock assembly |
| 11/20/2003 | WO2003095792A1 A method and a device for removing a hydrate plug |
| 11/20/2003 | WO2003095791A1 Multilateral well drilling and reentry system and method |
| 11/20/2003 | US20030213600 Latch profile installation in existing casing |
| 11/20/2003 | US20030213599 Whipstock collet latch |
| 11/19/2003 | EP1362158A1 Method and apparatus for operations in underground/subsea oil and gas wells |
| 11/18/2003 | US6648335 Metal-to-metal seal assembly for oil and gas production apparatus |
| 11/18/2003 | US6648076 Gravel pack expanding valve |
| 11/18/2003 | US6648075 Method and apparatus for expandable liner hanger with bypass |
| 11/18/2003 | US6648073 Retrievable sliding sleeve flow control valve for zonal isolation control system |
| 11/18/2003 | US6648069 Well reference apparatus and method |
| 11/13/2003 | WO2003093623A2 Mono diameter wellbore casing |
| 11/13/2003 | CA2484966A1 Mono diameter wellbore casing |
| 11/12/2003 | EP1360391A1 A deflection joint |
| 11/12/2003 | EP1114237B1 Through-tubing retrievable whipstock system |
| 11/12/2003 | EP1015184B1 Granular particle gripping surface |
| 11/11/2003 | US6644424 Core barrel |
| 11/11/2003 | US6644412 Flow control apparatus for use in a wellbore |
| 11/11/2003 | US6644403 Method and device for the measuring physical parameters in a production shaft of a deposit of underground fluid storage reservoir |
| 11/11/2003 | US6644402 Method of installing a sensor in a well |
| 11/06/2003 | US20030205374 One trip through tubing window milling apparatus and method |
| 11/06/2003 | US20030205083 Monitoring of downhole parameters and tools utilizing fiber optics |
| 11/05/2003 | EP1358426A2 Method of diminishing the size of the cross section of an opening of a hollow device located in a flow pipe |
| 11/05/2003 | EP1038087B1 Assembly and process for drilling and completing multiple wells |
| 11/04/2003 | US6640904 Sand removal and device retrieval tool |
| 11/04/2003 | US6640903 Forming a wellbore casing while simultaneously drilling a wellbore |