| 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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| 10/04/2001 | WO2001073423A1 Apparatus and method for downhole well equipment and process management, identification, and actuation |
| 10/04/2001 | WO2001073262A2 Sand removal and device retrieval tool |
| 10/04/2001 | EP1138872A1 Well tool actuators and method |
| 10/03/2001 | CN2451722Y Hydraulic expand tube type casing pipe subsidiary tool |
| 10/02/2001 | US6296066 Well system |
| 10/02/2001 | CA2229881C Down hole mud circulation system |
| 09/27/2001 | WO2001071154A1 Method and apparatus for handling tubular goods |
| 09/27/2001 | WO2001071149A2 Drill bit stabilizer and method of use |
| 09/27/2001 | US20010023765 Lubricator for underbalanced drilling |
| 09/27/2001 | US20010023764 Lubricator for underbalanced drilling |
| 09/27/2001 | US20010023614 Monitoring of downhole parameters and tools utilizing fiber optics |
| 09/27/2001 | CA2403727A1 Drill bit stabilizer and method of use |
| 09/26/2001 | EP0847478A4 Tool for transporting cutting means to and from a ground drill |
| 09/26/2001 | CN2450376Y Moveable joint |
| 09/26/2001 | CN2450375Y High-pressure wellhead through-cable hanger |
| 09/20/2001 | US20010022241 Bottomhole assembly and methods of use |
| 09/19/2001 | EP1133617A1 Wellbore system including a conduit and an expandable device |
| 09/19/2001 | EP0904479B1 Multi-cycle circulating sub |
| 09/18/2001 | US6289999 Fluid flow control devices and methods for selective actuation of valves and hydraulic drilling tools |
| 09/18/2001 | US6289992 Variable pressure pump through nozzle |
| 09/18/2001 | US6289985 System intended for permanent installation of measuring sondes against the inner wall of a pipe |
| 09/13/2001 | WO1997025518A3 Apparatus for setting a liner in a well casing |
| 09/13/2001 | US20010020675 Wellbores utilizing fiber optic-based sensors and operating devices |
| 09/12/2001 | EP1132567A1 Hydrajet window cutting in well casing |
| 09/12/2001 | EP1132565A2 Method and apparatus for downhole ball drop |
| 09/12/2001 | EP1131535A2 Method and system for accessing subterranean deposits from the surface |
| 09/11/2001 | US6286599 Method and apparatus for lateral casing window cutting using hydrajetting |
| 09/11/2001 | US6286592 Puller-thruster downhole tool |
| 09/10/2001 | CA2340268A1 Method and apparatus for lateral casing window cutting using hydrajetting |
| 09/09/2001 | CA2339707A1 Downhole ball drop tool |
| 09/04/2001 | US6283218 Locating and locking mandrel for flow control device |
| 09/04/2001 | US6283209 Flexible liner system for borehole instrumentation and sampling |
| 09/04/2001 | US6283208 Orienting tool and method |
| 09/04/2001 | CA2218917C A simplified sealing and anchoring device for a well tool |
| 08/30/2001 | WO2001063089A1 Sequential hydraulic control system for use in subterranean well |
| 08/29/2001 | EP1127212A1 Hydraulic switch device |
| 08/28/2001 | US6281489 Monitoring of downhole parameters and tools utilizing fiber optics |
| 08/28/2001 | US6280000 Method for production of gas from a coal seam using intersecting well bores |
| 08/28/2001 | US6279669 Indexing mechanism and apparatus incorporating the same |
| 08/28/2001 | US6279659 Assembly and method for providing a means of support and positioning for drilling multi-lateral wells and for reentry therein through a premilled window |
| 08/28/2001 | CA2093331C Valve control apparatus |
| 08/23/2001 | WO2001061144A1 Digital hydraulic well control system |
| 08/23/2001 | WO2001061143A1 Recirculatable ball-drop release device for lateral oilwell drilling applications |
| 08/23/2001 | WO2001060545A1 Expanding a tubular member |
| 08/23/2001 | US20010015574 Method and system for accessing subterranean deposits from the surface |
| 08/23/2001 | US20010015276 Wellbore flow control device |
| 08/22/2001 | CN2444052Y Suspension device for casing of oil well |
| 08/21/2001 | US6276690 Ribbed sealing element and method of use |
| 08/21/2001 | US6276458 Apparatus and method for controlling fluid flow |
| 08/21/2001 | US6276457 Method for emplacing a coil tubing string in a well |
| 08/21/2001 | US6276438 Energy systems |
| 08/16/2001 | US20010013415 Apparatus and method for hydraulically actuating a downhole from a remote location |
| 08/14/2001 | US6273189 Downhole tractor |
| 08/14/2001 | US6273187 Method and apparatus for downhole safety valve remediation |
| 08/09/2001 | WO2001057395A1 Controlling activation of devices |
| 08/07/2001 | US6269883 Disconnect tool |
| 08/07/2001 | US6269878 Drillable inflatable packer and methods of use |
| 08/07/2001 | US6269641 Stroke control tool for subterranean well hydraulic actuator assembly |
| 08/02/2001 | US20010010432 Method and system for accessing subterranean deposits from the surface |
| 08/01/2001 | EP0828921B1 Activating means for drilling apparatus |
| 07/31/2001 | US6268911 Monitoring of downhole parameters and tools utilizing fiber optics |
| 07/31/2001 | US6267180 Packer releasing tool and method for releasing a packer assembly from a wellbore |
| 07/31/2001 | CA2220392C Tqr anchor |
| 07/26/2001 | US20010009189 Method and apparatus for running two tubing strings into a well |
| 07/25/2001 | CN1305564A Method and system for measuring data in fluid transportation conduit |
| 07/24/2001 | US6263987 One pass drilling and completion of extended reach lateral wellbores with drill bit attached to drill string to produce hydrocarbons from offshore platforms |
| 07/24/2001 | CA2192185C Method for setting a whipstock in a wellbore |
| 07/19/2001 | WO2001051764A1 Telescoping tool |
| 07/19/2001 | CA2397101A1 Telescoping tool |
| 07/18/2001 | EP1116860A1 Subterranean well tool and slip assembly |
| 07/18/2001 | EP0664847A4 Wellbore anchor |
| 07/17/2001 | US6260618 Method for locating placement of a guide stock in a multilateral well |
| 07/17/2001 | US6260617 Skate apparatus for injecting tubing down pipelines |
| 07/17/2001 | CA2126904C Casing drive apparatus |
| 07/12/2001 | WO2001049969A1 Flow control in a wellbore |
| 07/12/2001 | US20010007284 Downhole apparatus |
| 07/11/2001 | EP1114237A1 Through-tubing retrievable whipstock system |
| 07/10/2001 | US6257339 Packer system |
| 07/10/2001 | US6257331 Downhole setting tool |
| 07/05/2001 | WO2001048352A1 A system for intervention of subsea wells |
| 07/05/2001 | US20010006107 Pumping sub for well logging tools |
| 07/04/2001 | EP1112438A1 $i(IN SITU) BOREHOLE SAMPLE ANALYZING PROBE AND VALVED CASING COUPLER THEREFOR |
| 07/04/2001 | EP0865564B1 Down hole bypass valve |
| 07/03/2001 | US6253848 Method of obtaining improved geophysical information about earth formations |
| 07/03/2001 | US6253842 Wireless coiled tubing joint locator |
| 07/03/2001 | CA2037409C Rotary drilling device with azimut adjustment means of the drilling tool path and drilling process using same |
| 06/30/2001 | CA2329697A1 Pumping sub for well logging tools |
| 06/28/2001 | WO2001046551A1 Tools and methods for use with expandable tubulars |
| 06/28/2001 | WO2001046549A1 Three dimensional steerable system |
| 06/27/2001 | EP0828922B1 Actuating ball |
| 06/26/2001 | US6250393 Bottom hole assembly with coiled tubing insert |
| 06/26/2001 | US6250383 Lubricator for underbalanced drilling |
| 06/26/2001 | US6250371 Energy transfer systems |
| 06/21/2001 | US20010004016 Perforating gun brake |
| 06/20/2001 | EP1108114A1 Method and apparatus for anchoring a tool within a cased borehole |
| 06/16/2001 | CA2292332A1 Perforating gun brake |
| 06/14/2001 | WO2001042721A2 An energy transfer system and a method for providing energy transfer services |
| 06/13/2001 | EP1105620A1 Hydraulic well control system |
| 06/13/2001 | EP0862681B1 Downhole apparatus and method for expanding a tubing |
| 06/13/2001 | EP0824630A4 Mechanism for anchoring a well tool |