| 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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| 12/05/1996 | WO1996038650A1 A simplified sealing and anchoring device for a well tool |
| 12/05/1996 | WO1996038649A2 Activating means for a down-hole tool |
| 12/05/1996 | WO1996038648A1 Method and apparatus of installing a whipstock |
| 12/05/1996 | CA2195522A1 Method and apparatus of installing a whipstock |
| 12/03/1996 | US5580114 For retrieving an object from a wellbore |
| 12/03/1996 | US5579841 Plugs for well logging operations |
| 12/03/1996 | US5579840 For use in running and setting a well packer |
| 12/03/1996 | US5579829 Keyless latch for orienting and anchoring downhole tools |
| 12/03/1996 | CA2177947A1 Coiled tubing apparatus |
| 12/03/1996 | CA2177925A1 Debris barrier with a downhole tool setting assembly |
| 12/03/1996 | CA2148169C Temporary plug system |
| 11/28/1996 | WO1996024752A3 Method and appartus for remote control of wellbore end devices |
| 11/26/1996 | US5579283 Method and apparatus for communicating coded messages in a wellbore |
| 11/26/1996 | US5577560 Fluid-actuated wellbore tool system |
| 11/26/1996 | US5577559 High-rate multizone gravel pack system |
| 11/19/1996 | US5575331 Chemical cutter |
| 11/13/1996 | EP0674744B1 Assembly and process for drilling and completing multiple wells |
| 11/13/1996 | CN2240039Y Hydraulic casing fastener |
| 11/12/1996 | US5573064 Automatic catch apparatus and method |
| 11/07/1996 | WO1996035039A1 Tubular actuator component for use in a drill-string |
| 11/06/1996 | EP0741229A2 Well packer and well stimulation apparatus |
| 11/06/1996 | CN2239500Y Well pipe placing machine |
| 11/06/1996 | CA2175851A1 Downhole tool release mechanism |
| 11/04/1996 | CA2175629A1 Coiled tubing deployed inflatable stimulation tool |
| 10/31/1996 | WO1996034176A2 Hydraulic shifting tool for sliding sleeves |
| 10/31/1996 | WO1996034174A1 Mechanism for anchoring a well tool |
| 10/31/1996 | WO1996034172A1 Method and tool for use in commencing the drilling of a deviated well |
| 10/29/1996 | US5568837 Method of inserting tubing into live wells |
| 10/29/1996 | US5568836 Release device for releasably coupling a first object to a second object |
| 10/22/1996 | US5566763 Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
| 10/22/1996 | US5566762 Thru tubing tool and method |
| 10/17/1996 | WO1996024745A3 Computer controlled downhole tools for production well control |
| 10/15/1996 | US5564503 Methods and systems for subterranean multilateral well drilling and completion |
| 10/09/1996 | CN1132820A Method and apparatus forintermittent production of oil with mechanical interface |
| 10/03/1996 | WO1996030622A1 Whipstock |
| 10/03/1996 | WO1996030621A1 Flow control tool |
| 10/02/1996 | EP0735236A1 Assembly and process for drilling and completing multiple wells |
| 10/01/1996 | US5560437 Telemetry method for cable-drilled boreholes and method for carrying it out |
| 10/01/1996 | US5560426 Downhole tool actuating mechanism |
| 09/25/1996 | EP0578681B1 Retrievable bridge plug and a running tool therefor |
| 09/24/1996 | US5558162 Mechanical lockout for pressure responsive downhole tool |
| 09/24/1996 | US5558153 Method & apparatus for actuating a downhole tool |
| 09/19/1996 | WO1996028636A1 High-rate multizone gravel pack system |
| 09/18/1996 | EP0732479A2 Remotely adjustable valve and method for using same |
| 09/18/1996 | CN1131465A Improved slick line system with real-time surface display |
| 09/17/1996 | US5556900 Modified asphalts for paving and roofing |
| 09/17/1996 | US5555946 Method and tool for use in commmencing the drilling of a deviated well |
| 09/12/1996 | WO1996027732A2 Shifting tool, releasing mechanism, position feedback method and method of releasing |
| 09/12/1996 | CA2188541A1 Overpull shifting tool |
| 09/11/1996 | EP0702746A4 System for in situ replacement of cutting means for a ground drill |
| 09/10/1996 | US5553677 Survey process for cable core borings and device for implementing it |
| 09/10/1996 | US5553672 Setting tool for a downhole tool |
| 09/10/1996 | US5553671 Piston sub for isolating drilling fluids from hydraulic fluids |
| 09/04/1996 | EP0730083A2 Method and apparatus for use in setting barrier member in well |
| 09/04/1996 | CA2170711A1 Locator and setting tool and methods of use thereof |
| 09/03/1996 | US5551512 Running tool |
| 08/28/1996 | EP0728913A2 Apparatus for connecting sections of a perforating gun string |
| 08/28/1996 | EP0646214B1 Survey process for cable core borings and device for implementing it |
| 08/27/1996 | US5549163 Piston sleeve valve for use with oilfield fishing operations |
| 08/27/1996 | US5549161 Overpull shifting tool |
| 08/27/1996 | CA2067303C Whipstock |
| 08/15/1996 | WO1996024794A1 Method of extracting a hollow unit laid in the ground |
| 08/15/1996 | WO1996024752A2 Method and appartus for remote control of wellbore end devices |
| 08/15/1996 | WO1996024748A1 Production wells having permanent downhole formation evaluation sensors |
| 08/15/1996 | WO1996024745A2 Computer controlled downhole tools for production well control |
| 08/15/1996 | CA2211852A1 Method of extracting a hollow unit laid in the ground |
| 08/14/1996 | DE19505517A1 Verfahren zum Herausziehen eines im Erdreich verlegten Rohres A method for extracting a pipe laid in the ground |
| 08/08/1996 | WO1996023953A1 Multiple drain drilling and production apparatus |
| 08/08/1996 | CA2210852A1 Multiple drain drilling and production apparatus |
| 08/07/1996 | EP0601030B1 Process and device for measuring cable drilled bores |
| 08/06/1996 | US5542475 Blanking plug assembly |
| 08/06/1996 | US5542473 Simplified sealing and anchoring device for a well tool |
| 08/01/1996 | WO1996023126A1 Borehole strainmeter |
| 07/30/1996 | US5540280 Method of servicing a well |
| 07/30/1996 | CA2008151C Subterranean well anchoring apparatus |
| 07/23/1996 | US5538082 Downhole running system & method for setting a downhole tool in a bore |
| 07/21/1996 | CA2167666A1 Apparatus and method for snubbing tubing-conveyed perforating guns in and out of a well bore |
| 07/18/1996 | WO1996009460A3 Apparatus for milling a well casing |
| 07/18/1996 | WO1996008635A3 Apparatus for the remote deployment of valves |
| 07/16/1996 | US5535824 Well tool for completing a well |
| 07/16/1996 | US5535823 Apparatus for amplifying a load |
| 07/16/1996 | US5535822 In an oil or gas well |
| 07/16/1996 | US5535767 Remotely actuated adjustable choke valve and method for using same |
| 07/11/1996 | WO1996021081A1 Apparatus for deploying wireline |
| 07/09/1996 | US5533356 In-ground conduit system for geothermal applications |
| 07/09/1996 | US5533355 Subterranean heat exchange units comprising multiple secondary conduits and multi-tiered inlet and outlet manifolds |
| 07/02/1996 | US5531280 Drill string anchor |
| 07/02/1996 | US5531273 Well completion tool and process |
| 07/02/1996 | US5531271 Wellbore tool side support |
| 06/26/1996 | EP0718463A2 Downhole stinger/housing latch |
| 06/26/1996 | EP0717808A1 Apparatus for use in a wellbore |
| 06/26/1996 | EP0524183B1 A borehole, as well as a method and an apparatus for forming it |
| 06/25/1996 | US5529133 Steerable drilling tool and system |
| 06/25/1996 | US5529127 Apparatus and method for snubbing tubing-conveyed perforating guns in and out of a well bore |
| 06/25/1996 | US5529126 Valve control apparatus |
| 06/25/1996 | CA2074296C Bent sub |
| 06/20/1996 | CA2165508A1 Downhole coiled tubing latch |
| 06/18/1996 | US5526888 Apparatus for axial connection and joinder of tubulars by application of remote hydraulic pressure |
| 06/18/1996 | US5526887 Device for drilling holes in the crust of the earth, especially for drilling oil wells |
| 06/18/1996 | US5526884 Downhole tool release mechanism |