| 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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| 04/04/2002 | WO2001077480A3 Apparatus to actuate downhole tool |
| 04/03/2002 | EP1192331A1 Method of deploying an electrically driven fluid transducer system in a well |
| 04/02/2002 | US6364037 Apparatus to actuate a downhole tool |
| 04/02/2002 | US6364017 Single trip perforate and gravel pack system |
| 03/28/2002 | WO2002025050A2 Downhole machining of well completion equipment |
| 03/28/2002 | WO2001080650A3 Packer, setting tool for a packer and method for setting a packer |
| 03/28/2002 | CA2423000A1 Downhole machining of well completion equipment |
| 03/27/2002 | EP1190158A1 Hydraulic setting tool |
| 03/27/2002 | CN2483503Y Apparatus for anchoring oil pipe in oil-field |
| 03/26/2002 | US6360823 Apparatus and method for performing downhole measurements |
| 03/26/2002 | US6360820 Method and apparatus for communicating with downhole devices in a wellbore |
| 03/21/2002 | WO2001073262A3 Sand removal and device retrieval tool |
| 03/20/2002 | EP0901559A4 Multicut window mill |
| 03/19/2002 | US6357523 Drainage pattern with intersecting wells drilled from surface |
| 03/19/2002 | CA2147965C Stabilized speed control system for a hydrostatic transmission |
| 03/14/2002 | WO2002020942A1 Hydraulic control system for downhole tools |
| 03/14/2002 | WO2002020939A1 Method and system for perforating |
| 03/14/2002 | WO2002020938A1 Intervention module for a well |
| 03/14/2002 | WO2001071149A3 Drill bit stabilizer and method of use |
| 03/14/2002 | US20020032126 Borehole retention device |
| 03/14/2002 | US20020030325 Ribbed sealing element and method of use |
| 03/14/2002 | US20020029908 Electrically sequenced tractor |
| 03/14/2002 | US20020029889 Deviated borehole drilling assembly |
| 03/14/2002 | US20020029886 Wellbore flow control device |
| 03/14/2002 | US20020029878 Well head lubricator assembly with polyurethane impact-absorbing spring |
| 03/12/2002 | US6354375 Lateral well tie-back method and apparatus |
| 03/12/2002 | US6354374 Method of performing downhole functions |
| 03/12/2002 | US6354372 Subterranean well tool and slip assembly |
| 03/07/2002 | US20020027006 Early formation evaluation tool |
| 03/07/2002 | US20020027003 Hydraulic control system for downhole tools |
| 03/05/2002 | US6352119 Completion valve assembly |
| 03/05/2002 | CA2216873C Ratchet/release mechanism for a retrievable well apparatus and a retrievable well apparatus |
| 02/28/2002 | US20020023780 Early formation evaluation tool |
| 02/28/2002 | US20020023758 Deviated borehole drilling assembly |
| 02/28/2002 | US20020023757 Deviated borehole drilling assembly |
| 02/28/2002 | US20020023756 Deviated borehole drilling assembly |
| 02/28/2002 | US20020023751 Live well heater cable |
| 02/28/2002 | US20020023747 Deviated borehole drilling assembly |
| 02/28/2002 | US20020023745 Deviated borehole drilling assembly |
| 02/27/2002 | EP1181432A1 Method of creating a wellbore |
| 02/27/2002 | CN1079886C Inflatable tubular sleeve for tubing or obturating well or pipe |
| 02/27/2002 | CN1079881C Hydraulic device to be connected in pipe string |
| 02/26/2002 | US6349772 Apparatus and method for hydraulically actuating a downhole device from a remote location |
| 02/26/2002 | US6349770 Telescoping tool |
| 02/26/2002 | US6349768 Method and apparatus for all multilateral well entry |
| 02/26/2002 | US6349767 Disconnect tool |
| 02/26/2002 | CA2264467C Downhole anti-rotation tool |
| 02/21/2002 | WO2002014651A1 Subsea intervention system |
| 02/21/2002 | WO2002014649A1 Underbalanced drilling tool and method |
| 02/21/2002 | US20020020562 Boring apparatus |
| 02/20/2002 | EP1180194A1 Subsurface apparatus |
| 02/20/2002 | CN2477811Y Anti-dropping polish rod fastener |
| 02/19/2002 | US6347674 Electrically sequenced tractor |
| 02/13/2002 | CN2476638Y Magneto-ignition apparatus |
| 02/13/2002 | CN2476637Y Automatic adjusting disconnecting apparatus for setting instrument in oil well |
| 02/12/2002 | US6345669 Reciprocating running tool |
| 02/07/2002 | US20020014335 Downhole anti-rotation tool |
| 02/06/2002 | EP0996806A4 Method and apparatus for moving a piston |
| 02/05/2002 | US6343658 Underbalanced well completion |
| 02/05/2002 | US6343657 Method of injecting tubing down pipelines |
| 02/05/2002 | US6343652 Method and device for cleaning out a well or piping blocked with gas hydrates |
| 02/05/2002 | CA2092647C Tubing anchor catcher with rotating mandrel |
| 01/31/2002 | US20020011340 Multilateral reference point |
| 01/30/2002 | CN1333858A Method and system for accessing substerranean deposits from the surface |
| 01/29/2002 | CA2156982C Torque-resistant, seal setting force-limited, hydraulically settable well packer structure and associated methods |
| 01/29/2002 | CA2045962C Liner hanger assembly |
| 01/24/2002 | US20020007971 Electro-hydraulically controlled tractor |
| 01/24/2002 | US20020007970 Well system |
| 01/24/2002 | US20020007946 Hydraulic well control system |
| 01/23/2002 | EP1174585A2 Apparatus and method for performing downhole measurements |
| 01/23/2002 | EP1173655A1 Ribbed sealing element and method of use |
| 01/22/2002 | US6340062 Early formation evaluation tool |
| 01/22/2002 | CA2076026C Device for remotely operating an assembly comprising a bean/needle system, and use thereof in a drilling string |
| 01/17/2002 | WO2002004783A1 Deformable member |
| 01/17/2002 | WO2002004782A1 Apparatus and methods for orientation of a tubular string in a non-vertical wellbore |
| 01/16/2002 | EP1172520A2 Barrel slip and retrievable packer therewith |
| 01/15/2002 | US6338504 Connector |
| 01/15/2002 | US6338385 Retrievable downhole adjustable choke |
| 01/15/2002 | CA2244451C Multiple string completion apparatus and method |
| 01/15/2002 | CA2190929C Linear indexing apparatus and methods of using same |
| 01/11/2002 | CA2352733A1 High temperature high pressure retrievable packer with barrel slip |
| 01/10/2002 | WO2002002903A1 Milling of casing using coiled tubing |
| 01/10/2002 | WO2002002900A2 Apparatus and method to complete a multilateral junction |
| 01/10/2002 | US20020003040 Apparatus and methods for orientation of a tubular string in a non-vertical wellbore |
| 01/09/2002 | CN2470528Y Hydraulic dropping feeder |
| 01/08/2002 | US6336507 Deformed multiple well template and process of use |
| 01/03/2002 | US20020000320 Disconnect tool |
| 01/03/2002 | US20020000319 Apparatus and method to complete a multilateral junction |
| 01/02/2002 | EP0901561B1 A hydraulic device to be connected in a pipe string |
| 01/01/2002 | US6334487 Valve assembly |
| 01/01/2002 | US6334485 Deviated borehole drilling assembly |
| 01/01/2002 | US6334351 Metal pipe expander |
| 12/27/2001 | WO2001098629A1 Method and apparatus for communicating with downhole devices in a wellbore |
| 12/27/2001 | WO2001098623A1 Radial expansion of tubular members |
| 12/27/2001 | WO2001042721A3 An energy transfer system and a method for providing energy transfer services |
| 12/27/2001 | US20010054969 Apparatus and method for downhole well equipment and process management, identification, and actuation |
| 12/26/2001 | CN2467785Y Hydraulic compression packing anchoring device |
| 12/25/2001 | US6333700 Apparatus and method for downhole well equipment and process management, identification, and actuation |
| 12/25/2001 | US6332498 Deviated borehole drilling assembly |
| 12/21/2001 | CA2351055A1 Cement diverter system for multilateral junctions and method for cementing a junction |