| Patents for E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712) |
|---|
| 12/30/1992 | CN1067475A Crawling device |
| 12/29/1992 | US5174397 Slip gripping mechanism |
| 12/29/1992 | US5174375 For conducting a fluid and running a linear into an underground borehole |
| 12/29/1992 | US5174161 Measuring a change in pressure of a well testing pipe |
| 12/23/1992 | CN2125690U Multi-functional antiwind unit under well |
| 12/22/1992 | US5172765 Method using spoolable composite tubular member with energy conductors |
| 12/16/1992 | EP0518371A2 Fluid-actuated wellbore tool system |
| 12/15/1992 | US5170847 Hydraulic release oil tool |
| 12/12/1992 | WO1992022728A1 Method for continuing a measuring operation after recovering a measuring instrument stuck in a well |
| 12/12/1992 | CA2089144A1 Process for continuing a measuring operation after recovering a measuring instrument stuck in a well |
| 12/09/1992 | EP0517362A2 Perforating gun release apparatus |
| 12/08/1992 | US5168941 Drilling tool for sinking wells in underground rock formations |
| 12/08/1992 | US5168931 Fluid control valve |
| 12/02/1992 | CN1019325B Hydraulic oil well repairing machine with energy storage |
| 12/01/1992 | USH1116 Method for introducing reeled tubing into oil and gas wells |
| 12/01/1992 | CA1310901C Retrievable bridge plug |
| 11/24/1992 | CA1310677C Hydraulic release joint for tubing systems |
| 11/19/1992 | EP0513844A1 Operating assembly for a multi-mode testing tool |
| 11/18/1992 | CN1066316A Hydraulic release system |
| 11/17/1992 | US5163515 Pumpdown toolstring operations in horizontal or high-deviation oil or gas wells |
| 11/17/1992 | US5163514 Blowout preventer isolation test tool |
| 11/17/1992 | CA1310263C Well probe anchoring device obtained by opeing up of mobile anchor arms |
| 11/12/1992 | WO1992019840A1 Hydraulic release system |
| 11/10/1992 | US5161620 Subsea production wellhead assembly |
| 11/04/1992 | EP0511789A2 Downhole tool retrieving apparatus |
| 11/04/1992 | CA2067686A1 Well completion method and apparatus |
| 10/31/1992 | CA2066996A1 Retrieving tool for downhole packers utilizing non-rotational workstrings |
| 10/29/1992 | WO1992018745A1 Method of performing a toolstring operation and tubing element |
| 10/29/1992 | DE4113315A1 Explosive cartridge for permanent sealing of oil pipes which are out of control - comprises hermetically sealed cartridge contg. explosives which undergoes permanent enlarging of its periphery |
| 10/21/1992 | EP0509157A1 Retainer ring |
| 10/20/1992 | US5156213 Well completion method and apparatus |
| 10/20/1992 | US5156209 Anti blow-out control apparatus |
| 10/20/1992 | CA1309120C Tubular connector |
| 10/15/1992 | WO1992017679A2 Hydraulic release oil tool |
| 10/14/1992 | EP0507838A1 Polymer and asphalt reaction process and polymer-linked-asphalt product |
| 10/13/1992 | US5154243 Bent sub |
| 10/13/1992 | US5154231 Whipstock assembly with hydraulically set anchor |
| 10/13/1992 | US5154228 Valving system for hurricane plugs |
| 10/10/1992 | CA2065169A1 Retainer ring |
| 10/07/1992 | WO1992017681A2 Retrievable bridge plug and a running tool therefor |
| 10/07/1992 | CN2118148U Impact type well pipe puller |
| 10/07/1992 | CN1065121A Well remote control signal transmiting method and its receiving device |
| 09/29/1992 | US5150750 Device for activating and measuring nonflowing producing wells |
| 09/23/1992 | EP0505276A1 Probe for determining particularly the injectivity of an oil well and measuring process making use of this probe |
| 09/23/1992 | EP0505260A2 Retrievable radiation source carrier |
| 09/22/1992 | US5148867 Stop for an oil well swabbing device |
| 09/22/1992 | US5148866 Well tool anchoring mechanism with improved slip release |
| 09/21/1992 | CA2063509A1 Probe to specifically determine the injectivity of a petroleum well and measuring method implementing said probe |
| 09/16/1992 | EP0504008A1 Method and device for the installation of a probe against the wall of a cased borehole |
| 09/16/1992 | CN2116080U No-release head big pump removing apparatus |
| 09/15/1992 | US5146992 Pump-through pressure seat for use in a wellbore |
| 09/15/1992 | US5146984 Emergency release device for connecting between tubular members in oil and gas wells |
| 09/15/1992 | US5146983 Hydrostatic setting tool including a selectively operable apparatus initially blocking an orifice disposed between two chambers and opening in response to a signal |
| 09/15/1992 | CA1307460C Plugging apparatus for a gravel packer |
| 09/15/1992 | CA1307456C Surface read-out tester valve and probe |
| 09/15/1992 | CA1307455C Locking orientation sub and alignment housing for drill pipe conveyed logging system |
| 09/09/1992 | EP0502133A1 Straddle packer for inflatable packer |
| 09/09/1992 | EP0502084A1 Device for steering the foremost part of a drill pipe. |
| 09/08/1992 | US5145228 Running and pulling tool |
| 09/01/1992 | US5143015 Coiled tubing set inflatable packer, bridge plug and releasing tool therefor |
| 08/26/1992 | EP0500343A1 Downhole tool with hydraulic actuating system |
| 08/26/1992 | EP0500342A1 Downhole tool apparatus actuable by pressure differential |
| 08/26/1992 | EP0500341A1 Downhole tool apparatus actuatable by pressure differential |
| 08/25/1992 | US5141062 Tool actuator |
| 08/21/1992 | CA2061576A1 Differential actuating system for downhole tools |
| 08/21/1992 | CA2061561A1 Rechargeable hydraulic power source |
| 08/19/1992 | EP0498925A1 Device for connecting tubes insertable into wells and filled with bentonite |
| 08/19/1992 | EP0353275B1 Shut-in tool |
| 08/18/1992 | US5139090 Tubing rotator with downhole tubing swivel |
| 08/11/1992 | US5137085 Side pocket mandrel |
| 08/06/1992 | WO1992006270A3 Valve control apparatus |
| 08/05/1992 | CA2054553A1 Apparatus and technique for installing an elongated rod in an earth formation |
| 07/29/1992 | EP0496540A1 Downhole inflatable packing apparatus |
| 07/29/1992 | EP0495833A1 Hydraulically actuated releasable connector and method for setting oil well liner |
| 07/28/1992 | US5133412 Pull release device with hydraulic lock for electric line setting tool |
| 07/28/1992 | US5133404 Rotary running tool for rotary lock mandrel |
| 07/21/1992 | US5131479 Rotary drilling device comprising means for adjusting the azimuth angle of the path of the drilling tool and corresponding drilling process |
| 07/21/1992 | US5131467 System for deflecting through-the-flowline tools |
| 07/21/1992 | US5131465 Perforating apparatus for circulating cement |
| 07/21/1992 | US5131464 Releasable electrical wet connect for a drill string |
| 07/19/1992 | CA2059573A1 Coiled tubing set inflatable packer, bridge plug and releasing tool therefor |
| 07/14/1992 | US5130705 Downhole well data recorder and method |
| 07/14/1992 | US5129459 Subsea flowline selector |
| 07/14/1992 | US5129453 Quick set well packer |
| 07/12/1992 | CA2059161A1 Retrievable packer |
| 07/09/1992 | WO1992011461A1 Device for remotely operating an assembly comprising a bean/needle system, and use thereof in a drill string |
| 07/07/1992 | US5127482 Expandable milling head for gas well drilling |
| 07/07/1992 | US5127477 Rechargeable hydraulic power source for actuating downhole tool |
| 07/07/1992 | US5127472 Indicating ball catcher |
| 07/07/1992 | CA1304679C Setting tool for mechanical packer |
| 07/07/1992 | CA1304677C Grapple connection for coiled tubing |
| 06/30/1992 | CA1304285C Deployment/retrieval method and apparatus for well tools used with coiled tubing |
| 06/24/1992 | CN2108170U Multipurpose tool for sandpack, back-off operation and lead seal |
| 06/23/1992 | CA1303976C Method for installing a liner within a well bore |
| 06/23/1992 | CA1303971C Perforating gun firing tool |
| 06/23/1992 | CA1303969C Automatic drop-off device for perforating guns |
| 06/13/1992 | CA2032022A1 Down hole drilling tool control mechanism |
| 06/11/1992 | WO1992009785A1 Device for a down-hole assembly |
| 06/11/1992 | WO1992009784A1 Plugs for well logging operations |
| 06/09/1992 | US5119875 Hydraulically actuated lock system |