| 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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| 04/25/1995 | US5409060 Wellbore tool orientation |
| 04/25/1995 | US5409059 Lock mandrel for downhole assemblies |
| 04/13/1995 | WO1995009962A1 Continuous soil sampling system and method |
| 04/12/1995 | EP0647765A2 Method of perforating a well using coiled tubing |
| 04/11/1995 | US5404956 For use in setting a packer in a well bore |
| 04/11/1995 | US5404955 Releasable running tool for setting well tool |
| 04/11/1995 | US5404948 Injection well flow measurement |
| 04/11/1995 | US5404944 Downhole makeup tool for threaded tubulars |
| 04/09/1995 | CA2133817A1 Methods of perforating a well using coiled tubing |
| 04/06/1995 | WO1995009291A1 Method and apparatus for setting a whipstock |
| 04/05/1995 | EP0646214A1 Survey process for cable core borings and device for implementing it. |
| 03/21/1995 | US5398764 Well tool system and method for use in a well conduit |
| 03/21/1995 | US5398763 For use in a well casing |
| 03/21/1995 | US5398760 Methods of perforating a well using coiled tubing |
| 03/21/1995 | US5398754 Retrievable whipstock anchor assembly |
| 03/21/1995 | US5398753 Wireline hydraulic retrieving tool and downhole power generating assembly |
| 03/16/1995 | WO1995007404A2 Apparatus for use in a wellbore |
| 03/14/1995 | US5396953 For use in a wellbore |
| 03/14/1995 | US5396951 For use in a wellbore to operate a downhole tool |
| 03/14/1995 | US5396950 Apparatus and methods for horizontal completion of a water well |
| 03/14/1995 | CA2055421C Trenchless pipeline replacement |
| 03/09/1995 | WO1995006828A1 Stabilized speed control system for a hydrostatic transmission |
| 03/02/1995 | WO1995006186A1 Wellbore anchor |
| 03/01/1995 | EP0511254B1 Centralizers for oil well casings |
| 02/28/1995 | US5392867 Device for remotely operating and assembly comprising a bean/needle system, and use thereof in a drill string |
| 02/28/1995 | US5392860 Heat activated safety fuse |
| 02/28/1995 | US5392856 Slickline setting tool and bailer bottom for plugback operations |
| 02/28/1995 | CA2130951A1 Coiled tubing operated full opening completion tool system |
| 02/23/1995 | WO1995005522A1 Method and apparatus for setting hydraulic packers and for placing a gravel pack in a well |
| 02/21/1995 | US5390739 Hydraulic tool and hydraulic pressure device |
| 02/21/1995 | US5390735 Full bore lock system |
| 02/09/1995 | WO1995004290A1 Improved slick line system with real-time surface display |
| 02/07/1995 | CA2043756C Drill pipe bridge plug |
| 02/07/1995 | CA2017640C Well completions |
| 01/31/1995 | CA2021672C Coiled tubing velocity string hangoff method and apparatus |
| 01/25/1995 | EP0635622A1 A landing nipple |
| 01/25/1995 | EP0635621A1 A lock mandrel |
| 01/25/1995 | CN2188130Y Electrically driven machine for hoisting equipment in oil producer |
| 01/24/1995 | US5383522 Whipstock and method |
| 01/24/1995 | US5383520 For use on coiled tubing in a well bore |
| 01/17/1995 | US5381862 Coiled tubing operated full opening completion tool system |
| 01/10/1995 | US5379845 Method for setting a whipstock in a wellbore |
| 01/10/1995 | US5379839 Well testing valve |
| 01/10/1995 | US5379838 Apparatus for centralizing pipe in a wellbore |
| 01/10/1995 | US5379837 Locking member for securing to a lock structure in a conduit |
| 01/03/1995 | US5377762 Bore selector |
| 01/03/1995 | US5377754 Progressive fluid sampling for boreholes |
| 01/03/1995 | US5377750 Sand screen completion |
| 01/03/1995 | US5377749 Apparatus for setting hydraulic packers and for placing a gravel pack in a downhole oil and gas well |
| 12/27/1994 | US5375668 Borehole, as well as a method and an apparatus for forming it |
| 12/27/1994 | US5375662 For applying hydraulic pressure to an operated well |
| 12/27/1994 | US5375659 Sonde supported operating system for control of formation production fluid flow |
| 12/22/1994 | WO1994029572A1 Method and apparatus for communicating coded messages in a wellbore |
| 12/20/1994 | US5374163 Down hole pump |
| 12/20/1994 | US5373906 Orientable guide assembly and method of use |
| 12/14/1994 | EP0628699A1 Well perforation and completion |
| 12/14/1994 | EP0470972B1 Ball valve actuating member with force multiplier |
| 12/13/1994 | US5372197 Tubing unloader apparatus and method |
| 12/13/1994 | US5372192 Drag block for increasing the fluid resistance of well production tubing inadvertently dropped in a cased hole of an oil or gas well |
| 12/13/1994 | US5372038 Probe to specifically determine the injectivity or productivity of a petroleum well and measuring method implementing said probe |
| 12/09/1994 | CA2097988A1 Eccentrically actuated perforating guns |
| 12/08/1994 | WO1994028283A1 Tubing unloader apparatus and method |
| 12/06/1994 | US5370186 Apparatus and method of perforating wellbores |
| 12/06/1994 | US5370180 Downhole oil and gas well jacking tool for use with coil tubing unit |
| 12/06/1994 | CA2063216C Retrievable radiation source carrier |
| 11/29/1994 | US5369579 Electronic blast control system for downhole well operations |
| 11/29/1994 | US5368111 Directional drilling sub with improved multi-slot locking arrangement |
| 11/22/1994 | US5366019 Horizontal inflatable tool |
| 11/22/1994 | US5366013 Shock absorber for use in a wellbore including a frangible breakup element preventing shock absorption before shattering allowing shock absorption after shattering |
| 11/22/1994 | US5366010 Retrievable bridge plug and a running tool therefor |
| 11/17/1994 | EP0624225A1 Multi-arm stabilizer for a drilling or boring device. |
| 11/15/1994 | US5363922 Device and method for installing a submerged water pump in an artesian well |
| 11/15/1994 | US5363921 Release apparatus for use downhole to allow release from a stuck object |
| 11/10/1994 | WO1994016192A3 Zone isolation apparatus |
| 11/09/1994 | EP0623187A1 Whipstock for oil and gas wells |
| 11/08/1994 | US5362962 Method and apparatus for measuring pipeline corrosion |
| 11/08/1994 | US5361834 Hydraulic release apparatus and method for retrieving a stuck downhole tool and moving a downhole tool longitudinally |
| 11/08/1994 | US5361833 Bottom set, non-retrievable whipstock assembly |
| 11/08/1994 | CA2060160C Method of positioning tubing within a horizontal well |
| 11/01/1994 | US5360069 Failsafe liner installation assembly and method |
| 11/01/1994 | US5360062 Well tubing and tubing collar therefor |
| 10/25/1994 | CA2010326C Wellhead repair unit |
| 10/25/1994 | CA1332710C Process and device for metering and servicing in a high sloped well section and use for seismic profiling |
| 10/19/1994 | EP0619855A1 Hydraulic release apparatus and method |
| 10/18/1994 | US5355952 Method and device for establishing an intermittent electric connection with a stationary tool in a well |
| 10/18/1994 | US5355675 Stabilized speed-control system for a hydrostatic transmission |
| 10/18/1994 | CA2020975C Two-way plugs for wells |
| 10/18/1994 | CA2011139C Downhole tool, including shock absorber |
| 10/13/1994 | WO1994023179A1 Failsafe liner installation assembly and method |
| 10/13/1994 | WO1994023177A1 Method and apparatus for reducing pressure differential forces on a settable wellbore tool in a flowing well |
| 10/11/1994 | US5353884 Positioning device for a member and drilling system employing said positioning device |
| 10/11/1994 | US5353877 Electrically controlled latch for well applications |
| 10/11/1994 | US5353872 System, support for carrying out measurings and/or servicings in a wellbore or in a well in the process of being drilled and uses thereof |
| 10/05/1994 | EP0618343A2 Horizontal inflatable tool |
| 10/05/1994 | EP0618342A2 Wellbore lock system and method of use |
| 10/04/1994 | US5351534 Method and device for production logging in a gushing well |
| 10/02/1994 | CA2120311A1 Wellbore lock system and method of use |
| 09/29/1994 | WO1994021883A1 Heat activated safety fuse |
| 09/29/1994 | WO1994021882A1 Hydrostatic activated ballistic blocker |
| 09/29/1994 | WO1994021881A1 Heat activated ballistic blocker |