| 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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| 11/16/1995 | WO1995023273A3 Whipstock apparatus and methods of use |
| 11/14/1995 | US5465793 Spoolable flexible hydraulic controlled annular control valve |
| 11/14/1995 | CA2149173A1 Permanent whipstock |
| 11/08/1995 | EP0681088A2 Annulus pressure responsive downhole tool |
| 11/08/1995 | EP0681087A2 Temporary plug system for well conduits |
| 11/08/1995 | EP0681086A2 Hydraulic disconnecting apparatus |
| 10/31/1995 | US5462121 Failsafe liner installation assembly and method |
| 10/31/1995 | US5462117 Tubing conveyed perforating system with fluid loss control |
| 10/25/1995 | EP0678880A1 Inductive coupler for well tools |
| 10/25/1995 | EP0678654A2 Replaceable cutting means segment for use in a ground drill |
| 10/25/1995 | EP0678653A2 Tool for use in system for in situ replacement of cutting means for a ground drill |
| 10/25/1995 | EP0678652A2 Insert for use in retaining a cutting means in a ground drill |
| 10/25/1995 | EP0678651A2 Drive sub for connection to a ground drill |
| 10/23/1995 | CA2147558A1 Inductive coupler for well tools |
| 10/18/1995 | EP0677135A1 Method and apparatus for setting a whipstock |
| 10/17/1995 | US5458199 Assembly and process for drilling and completing multiple wells |
| 10/17/1995 | US5458196 For supporting equipment in a well casing below a tubing string |
| 10/17/1995 | US5457988 Side pocket mandrel pressure measuring system |
| 10/10/1995 | US5456322 Coiled tubing inflatable packer with circulating port |
| 10/10/1995 | US5456319 Apparatus and method for blocking well perforations |
| 10/10/1995 | US5456317 Buoyancy assisted running of perforated tubulars |
| 10/04/1995 | EP0674744A1 Assembly and process for drilling and completing multiple wells. |
| 10/03/1995 | US5455573 Inductive coupler for well tools |
| 10/03/1995 | US5454420 Method and apparatus for rotating downhole tool in wellbore |
| 09/28/1995 | WO1995025875A1 Milling tool |
| 09/27/1995 | EP0674094A1 Running downhole tools with coiled tubing |
| 09/26/1995 | US5452772 Apparatus for steering the foremost part of the drillpipe |
| 09/26/1995 | US5452759 Whipstock system |
| 09/19/1995 | US5450914 Fluid powered stepping motor for rotating a downhole assembly relative to a supporting pipe string |
| 09/19/1995 | US5450913 Continuous soil sampling system and method |
| 09/12/1995 | US5449040 Wireline-set tubing-release packer apparatus |
| 09/12/1995 | CA2144364A1 Shear device for well service tools |
| 09/06/1995 | EP0670013A1 Stabilized speed control system for a hydrostatic transmission |
| 09/06/1995 | EP0670008A1 Method and apparatus for setting a whipstock |
| 09/06/1995 | EP0548303B1 Method for continuing a measuring operation after recovering a measuring instrument stuck in a well |
| 09/05/1995 | US5447202 Setting tool and related method |
| 08/31/1995 | WO1995023273A2 Whipstock apparatus and methods of use |
| 08/31/1995 | CA2284524A1 Whipstock apparatus and methods of use |
| 08/31/1995 | CA2284488A1 Whipstock apparatus and methods of use |
| 08/29/1995 | US5445230 Downhole drilling subassembly and method for same |
| 08/29/1995 | US5445220 Apparatus for increasing productivity by cutting openings through casing, cement and the formation rock |
| 08/24/1995 | WO1995023274A1 Retrievable whipstock arrangement and method |
| 08/22/1995 | US5443129 Apparatus and method for orienting and setting a hydraulically-actuatable tool in a borehole |
| 08/22/1995 | US5443128 Device for remote actuating equipment comprising delay means |
| 08/17/1995 | WO1995021987A1 Locomotive or tractor for pulling equipment in a pipe or drill hole |
| 08/08/1995 | US5439066 Method and system for downhole redirection of a borehole |
| 08/08/1995 | US5439051 Lateral connector receptacle |
| 08/02/1995 | EP0665362A2 Apparatus for amplifying a load |
| 08/02/1995 | EP0664847A1 Wellbore anchor |
| 08/01/1995 | US5438169 Apparatus and method for determining the quality of clamping of a borehole seismic sensor system to the wall of a wellbore |
| 08/01/1995 | US5437340 Millout whipstock apparatus and method |
| 08/01/1995 | US5437308 Device for remotely actuating equipment comprising a bean-needle system |
| 08/01/1995 | US5437302 Equipment for the interconnection of two lines to allow running of pigs |
| 07/27/1995 | CA2140234A1 Scoophead running tool |
| 07/26/1995 | CA2140214A1 Retrievable whipstock anchor assembly |
| 07/25/1995 | US5435395 Method for running downhole tools and devices with coiled tubing |
| 07/25/1995 | US5435392 Liner tie-back sleeve |
| 07/25/1995 | US5435338 Equipment for the interconnection of two lines to allow running of pigs |
| 07/18/1995 | US5433276 Method and system for inserting logging tools into highly inclined or horizontal boreholes |
| 07/18/1995 | US5433275 Double-threaded anchor tubing assembly |
| 07/18/1995 | CA2023151C Packer locking apparatus |
| 07/12/1995 | EP0662187A1 Lock mandrel for downhole assemblies |
| 07/11/1995 | US5431230 Slant wellbore tubing anchor catcher with rotating mandrel |
| 07/11/1995 | US5431219 Forming casing window off whipstock set in cement plug |
| 07/05/1995 | EP0661412A1 Device and method for remote actuation of a downhole tool |
| 07/04/1995 | US5429194 Method for inserting a wireline inside coiled tubing |
| 07/04/1995 | US5429192 Method and apparatus for anchoring a perforating gun to a casing in a wellbore including a primary and a secondary anchor release mechanism |
| 07/04/1995 | US5429187 Milling tool and operations |
| 06/29/1995 | WO1995017580A1 Assembly and process for drilling and completing multiple wells |
| 06/29/1995 | WO1995017577A1 Apparatus and method for completing a well |
| 06/27/1995 | US5427179 For changing direction of drilling within a wellbore |
| 06/27/1995 | US5427133 Coiled tubing wireline retrievable and selective set gas lift assembly |
| 06/25/1995 | CA2139007A1 Device and method for remotely actuating an equipment - application to a boring string |
| 06/21/1995 | EP0658683A1 Running tool |
| 06/20/1995 | US5425425 Method and apparatus for removing gas lift valves from side pocket mandrels |
| 06/20/1995 | US5425423 Well completion tool and process |
| 06/20/1995 | US5425420 Spoolable coiled tubing completion system |
| 06/20/1995 | US5425419 Whipstock apparatus and methods of use |
| 06/20/1995 | US5425417 Wellbore tool setting system |
| 06/14/1995 | EP0656985A1 Drill string anchor. |
| 06/13/1995 | US5423383 Spoolable flexible hydraulic controlled coiled tubing safety valve |
| 06/13/1995 | US5423382 Apparatus for releasing perforating gun equipment from a well casing |
| 06/09/1995 | CA2136591A1 Well apparatus |
| 06/08/1995 | WO1995015427A1 Jacking tool for coil tubing unit |
| 06/06/1995 | US5421414 Siphon string assembly compatible for use with subsurface safety devices within a wellbore |
| 05/30/1995 | US5419399 Hydraulic disconnect |
| 05/26/1995 | WO1995014153A1 Bottom set, non-retrievable whipstock assembly |
| 05/23/1995 | US5417288 Hydraulic set liner hanger and method |
| 05/16/1995 | US5415238 Borehole sidetrack locator |
| 05/11/1995 | CA2119504A1 Apparatus for releasing perforating gun equipment from a well casing |
| 05/09/1995 | US5413180 One trip backwash/sand control system with extendable washpipe isolation |
| 05/09/1995 | US5413176 Sand screen repair |
| 05/09/1995 | US5413174 Signal transmission through deflected well tubing |
| 05/09/1995 | US5413173 Well apparatus including a tool for use in shifting a sleeve within a well conduit |
| 05/09/1995 | US5413170 Spoolable coiled tubing completion system |
| 05/04/1995 | WO1995007404A3 Apparatus for use in a wellbore |
| 05/02/1995 | US5411085 Spoolable coiled tubing completion system |
| 05/02/1995 | US5411083 Inflatable well seal |
| 05/02/1995 | US5411082 Scoophead running tool |
| 05/02/1995 | US5411081 Spoolable flexible hydraulically set, straight pull release well packer |