| 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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| 09/11/2002 | EP1239112A2 Method and apparatus to vibrate a downhole component |
| 09/11/2002 | EP1238234A2 An energy transfer system and a method for providing energy transfer services |
| 09/11/2002 | EP1159507A4 Method of making a conductive downhole wire line system |
| 09/10/2002 | US6447021 Locking telescoping joint for use in a conduit connected to a wellhead |
| 09/10/2002 | US6446727 Process for hydraulically fracturing oil and gas wells |
| 09/10/2002 | US6446718 Down hole tool and method |
| 09/10/2002 | US6446323 Profile formation |
| 09/10/2002 | CA2375582A1 Guide apparatus |
| 09/06/2002 | WO2001004456A9 Lubricator for underbalanced drilling |
| 09/05/2002 | US20020121380 Collet-cone slip system for releasably securing well tools |
| 09/05/2002 | US20020121379 Lock ring for pipe slip pick-up ring |
| 09/05/2002 | US20020121378 Method and apparatus to vibrate a downhole component |
| 09/05/2002 | US20020121375 Apparatus and method for completing a junction of plural wellbores |
| 09/05/2002 | US20020121160 Granular particle gripping surface |
| 09/05/2002 | US20020121134 Hydraulic strain sensor |
| 08/29/2002 | WO2002066779A1 A deflection joint |
| 08/29/2002 | US20020117309 Hydraulically activated selective circulating/reverse circulating packer assembly |
| 08/29/2002 | US20020117308 Method and apparatus for inserting a tubing hanger into a live well |
| 08/29/2002 | US20020117300 Drillpipe assembly and a method of deploying a logging tool |
| 08/29/2002 | US20020116820 Method of diminishing the cross section of an opening of a hollow device located in a flow pipe |
| 08/29/2002 | CA2438358A1 A deflection joint |
| 08/28/2002 | EP1234091A1 Downhole device |
| 08/28/2002 | EP1015728A4 Bottomhole assembly orienting sub |
| 08/28/2002 | CN1366574A Method and device for measuring physical parameter in production shaft of deposit of underground fluid storage reservoir |
| 08/27/2002 | US6439323 Seismic shothole reaming module |
| 08/27/2002 | US6439321 Piston actuator assembly for an orienting device |
| 08/27/2002 | US6439320 Wellbore pattern for uniform access to subterranean deposits |
| 08/27/2002 | US6439313 Downhole machining of well completion equipment |
| 08/27/2002 | US6439305 Hydraulically releasable coupling device |
| 08/22/2002 | WO2002064942A2 Downhole packer |
| 08/22/2002 | WO2002044510A3 Seismic shothole reaming module |
| 08/22/2002 | US20020112862 Valve assembly |
| 08/22/2002 | US20020112859 Tractor with improved valve system |
| 08/22/2002 | US20020112338 Profile formation |
| 08/21/2002 | EP1233144A2 Locating and orienting system and use in multilateral wells |
| 08/21/2002 | EP1233143A1 Coiled tubing |
| 08/21/2002 | EP1233142A2 Guide bushing and use in multilateral wells |
| 08/21/2002 | EP1232325A1 Setting an annular seal |
| 08/21/2002 | EP1232324A1 Device for manipulating a tool in a well tubular |
| 08/21/2002 | EP1062529B1 Clamped receiver array using coiled tubing conveyed packer elements |
| 08/21/2002 | CN2506764Y Long well section seal reinforcing device for multipoint sleeve damage well |
| 08/20/2002 | US6434825 Method of diminishing the cross section of an opening of a hollow device located in a flow pipe |
| 08/20/2002 | CA2228885C Improved full bore nipple and associated lock mandrel therefor |
| 08/20/2002 | CA2223214C Apparatus for axially displacing a downhole tool or a tubing string in a well bore |
| 08/15/2002 | WO2002063203A2 Method of diminishing the size of the cross section of an opening of a hollow device located in a flow pipe |
| 08/15/2002 | US20020109080 Wellbores utilizing fiber optic-based sensors and operating devices |
| 08/15/2002 | US20020108787 Boring apparatus |
| 08/15/2002 | US20020108751 Traction apparatus |
| 08/14/2002 | EP1068424B1 Apparatus with coil springs and method for supporting a cable in a tubing |
| 08/13/2002 | US6433991 Controlling activation of devices |
| 08/13/2002 | US6431291 Packerfoot with bladder assembly having reduced likelihood of bladder delamination |
| 08/13/2002 | US6431277 Liner hanger |
| 08/13/2002 | US6431276 Remote actuated plug apparatus |
| 08/13/2002 | US6431270 Downhole tools with a mobility device |
| 08/08/2002 | US20020104686 Gripper assembly for downhole tractors |
| 08/08/2002 | US20020104661 Telemetering system |
| 08/08/2002 | US20020104643 Energy systems |
| 08/06/2002 | US6427786 Electro-hydraulically controlled tractor |
| 08/06/2002 | US6427777 Multilateral well drilling and reentry system and method |
| 08/06/2002 | US6427776 Sand removal and device retrieval tool |
| 08/01/2002 | US20020100614 Apparatus for use in drilling oil and gas production wells or water injection wells |
| 08/01/2002 | US20020100586 Full bore automatic gun release module |
| 07/31/2002 | EP1226331A1 Drillable inflatable packer & methods of use |
| 07/30/2002 | US6426917 Reservoir monitoring through modified casing joint |
| 07/30/2002 | US6425449 Up-hole pump-in core barrel apparatus |
| 07/30/2002 | CA2045434C Improved logging device and method within wellbores |
| 07/25/2002 | US20020096331 Apparatus and method for spacing out of offshore wells |
| 07/25/2002 | US20020096326 Locating system and method |
| 07/25/2002 | US20020096325 Wireless packer/anchor setting or activation |
| 07/25/2002 | US20020096322 Down hole tool and method |
| 07/18/2002 | WO2001011188A9 Selective re-entry tool for multiple tubing completions and method of using |
| 07/18/2002 | US20020092653 Hydraulically metered travel joint |
| 07/16/2002 | US6419024 Deviated borehole drilling assembly |
| 07/16/2002 | US6419023 Deviated borehole drilling assembly |
| 07/16/2002 | US6419022 Retrievable zonal isolation control system |
| 07/16/2002 | US6419021 Deviated borehole drilling assembly |
| 07/16/2002 | US6419014 Apparatus and method for orienting a downhole tool |
| 07/16/2002 | US6419013 Well logging method & apparatus |
| 07/16/2002 | US6419012 Deviated borehole drilling assembly |
| 07/16/2002 | US6419010 Deviated borehole drilling assembly |
| 07/11/2002 | US20020088623 Technique for deploying a power cable and a capillary tube through a wellbore tool |
| 07/11/2002 | US20020088616 High temperature high pressure retrievable packer with barrel slip |
| 07/10/2002 | EP1027526B1 Expandable downhole tubing |
| 07/09/2002 | US6415869 Method of deploying an electrically driven fluid transducer system in a well |
| 07/03/2002 | EP1218619A1 Packer system |
| 07/03/2002 | CN2498322Y Tubing anchor without slip |
| 07/03/2002 | CN1357077A Method of deploying electrically driven fluid transducer system in well |
| 07/02/2002 | US6414905 Method and apparatus for communicating coded messages in a wellbore |
| 07/02/2002 | US6412578 Boring apparatus |
| 07/02/2002 | US6412558 Early formation evaluation tool |
| 06/27/2002 | US20020079107 Subsurface apparatus |
| 06/27/2002 | US20020079106 Procedures and equipment for profiling and jointing of pipes |
| 06/27/2002 | US20020079103 Downhole control tool |
| 06/25/2002 | US6409175 Expandable joint connector |
| 06/25/2002 | US6408946 Multi-use tubing disconnect |
| 06/25/2002 | US6408945 Tool and method for removing excess cement from the top of a liner after hanging and cementing thereof |
| 06/23/2002 | WO2002040830A1 Full bore automatic gun release module |
| 06/20/2002 | WO2002048502A1 Hydraulic running tool |
| 06/20/2002 | US20020074121 Multilateral well drilling and reentry system and method |
| 06/19/2002 | CN2495801Y Tubing anchor with soft slips |