| 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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| 11/19/2002 | CA2117086C Downhole activated process and apparatus for centralizing pipe in a wellbore |
| 11/18/2002 | CA2385793A1 Well reference apparatus and method |
| 11/14/2002 | US20020166670 Mechanical anchor setting system |
| 11/14/2002 | US20020166668 Tubing anchor |
| 11/14/2002 | US20020166667 Expandable shifting tool |
| 11/14/2002 | CA2386261A1 Mechanical anchor setting system |
| 11/12/2002 | US6479752 Coil springs for cable support |
| 11/12/2002 | US6478097 Electrically sequenced tractor |
| 11/12/2002 | US6478093 Retrievable well packer apparatus and method |
| 11/12/2002 | US6478085 System for accessing subterranean deposits from the surface |
| 11/09/2002 | CA2384209A1 Expandable shifting tool |
| 11/07/2002 | WO2002088513A1 Flow control apparatus for use in a wellbore |
| 11/07/2002 | WO2002025050A3 Downhole machining of well completion equipment |
| 11/07/2002 | US20020162666 Deep well instrumentation |
| 11/07/2002 | US20020162656 Orientation and locator system |
| 11/06/2002 | EP1255022A1 Apparatus and method for installing a monitoring line in a well |
| 11/05/2002 | US6474419 Packer with equalizing valve and method of use |
| 11/05/2002 | US6474412 Tubing hanger landing string with blowout preventer operated release mechanism |
| 11/05/2002 | CA2195701C Torque-resistant slip |
| 11/04/2002 | CA2384454A1 Valve assembly |
| 10/31/2002 | WO2002086287A2 Conveying instrumentation within a borehole |
| 10/31/2002 | WO2002086285A1 Apparatus and methods for radially expanding a tubular member |
| 10/31/2002 | US20020157872 Up-hole overshot and safety drilling apparatus |
| 10/31/2002 | US20020157837 Flow control apparatus for use in a wellbore |
| 10/31/2002 | US20020157830 Downhole tool |
| 10/31/2002 | US20020157824 Downhole tool |
| 10/30/2002 | EP1253284A2 Apparatus for formation testing |
| 10/30/2002 | EP1253283A1 Method of installing a wellbore tubular |
| 10/30/2002 | EP1252440A1 Controlling activation of devices |
| 10/29/2002 | US6470974 Three-dimensional steering tool for controlled downhole extended-reach directional drilling |
| 10/29/2002 | US6470970 Multiplier digital-hydraulic well control system and method |
| 10/29/2002 | CA2054782C Enhanced response device for non-flowing deviated wells |
| 10/24/2002 | WO2002084073A2 Pressure wave expansion tool |
| 10/23/2002 | EP1251242A1 Slick line system with real-time surface display |
| 10/23/2002 | CN2517861Y Hydraulic power anchor |
| 10/23/2002 | CN2517860Y Casing patching appts. |
| 10/23/2002 | CN2517859Y Salvageable screen pipe hookup |
| 10/22/2002 | US6467557 Long reach rotary drilling assembly |
| 10/22/2002 | US6467547 Hydraulic running tool with torque dampener |
| 10/22/2002 | US6467546 Drop ball sub and system of use |
| 10/22/2002 | US6467540 Combined sealing and gripping unit for retrievable packers |
| 10/17/2002 | WO2002081857A2 Downhole weight bearing apparatus and method |
| 10/17/2002 | US20020150436 Tubular cutting tool |
| 10/17/2002 | US20020149498 Reservoir monitoring through windowed casing joint |
| 10/17/2002 | US20020148647 Method and system for accessing subterranean deposits from the surface |
| 10/17/2002 | US20020148645 Stalled motor by-pass valve |
| 10/17/2002 | US20020148617 Well reference apparatus and method |
| 10/17/2002 | US20020148613 Method and system for accessing subterranean deposits from the surface |
| 10/17/2002 | US20020148605 Method and system for accessing subterranean deposits from the surface |
| 10/16/2002 | EP1249574A2 Multilateral well drilling and completion method and apparatus |
| 10/16/2002 | CN2516688Y Graded freeing stuck tools for underpit operation |
| 10/16/2002 | CN1092745C Method and equipment for collecting stratigraphic data during well drilling |
| 10/16/2002 | CN1092743C Hole finding apparatus having integrated sensor and its method |
| 10/15/2002 | US6464021 Equi-pressure geosteering |
| 10/15/2002 | US6464004 Retrievable well monitor/controller system |
| 10/15/2002 | US6464003 Gripper assembly for downhole tractors |
| 10/15/2002 | CA2250518C Hydrostatic, slow actuating subterranean well tool manipulation device and method |
| 10/10/2002 | WO2002079605A1 Downhole axial force generating tool |
| 10/10/2002 | WO2002079604A2 Expandable downhole tool |
| 10/10/2002 | US20020145281 An apparatus and method for isolating a section of tubing |
| 10/10/2002 | US20020144817 Anchoring device removal method and apparatus |
| 10/10/2002 | US20020144815 Guide apparatus |
| 10/10/2002 | CA2442117A1 Expandable downhole tool |
| 10/09/2002 | EP1246999A1 Telescoping tool |
| 10/09/2002 | EP1246993A1 Three dimensional steerable system |
| 10/08/2002 | US6460616 Traction apparatus |
| 10/03/2002 | WO2002077409A1 Running tool and wellbore component assembly |
| 10/03/2002 | WO2001021935A9 Valve for use in wells |
| 10/03/2002 | US20020139539 Running tool and wellbore component assembly |
| 10/03/2002 | US20020139529 Wiper plug delivery apparatus |
| 10/02/2002 | CN1091833C Wall system, method of using equipment in well systems and method of developing said system |
| 10/01/2002 | US6457749 Lock assembly |
| 10/01/2002 | US6457541 Surface controlled by-pass valve |
| 10/01/2002 | US6457539 Early formation evaluation tool |
| 10/01/2002 | US6457532 Procedures and equipment for profiling and jointing of pipes |
| 10/01/2002 | US6457520 Bottom hole assembly with coiled tubing insert |
| 09/26/2002 | WO2002075107A1 Tubing seal |
| 09/26/2002 | WO2002075104A1 Downhole tool |
| 09/26/2002 | US20020134586 Boring apparatus |
| 09/26/2002 | US20020134552 Deep water intervention system |
| 09/26/2002 | US20020134551 Method and apparatus for selective injection or flow control with through-tubing operation capacity |
| 09/26/2002 | US20020134546 Method and system for accessing subterranean deposits from the surface |
| 09/25/2002 | EP1242715A1 Lock assembly |
| 09/25/2002 | EP1242714A1 Tools and methods for use with expandable tubulars |
| 09/24/2002 | US6454013 Expandable downhole tubing |
| 09/24/2002 | US6454011 Method and system for moving equipment into and through a conduit |
| 09/24/2002 | US6454007 Method and apparatus for casing exit system using coiled tubing |
| 09/24/2002 | US6454006 Methods and associated apparatus for drilling and completing a wellbore junction |
| 09/19/2002 | WO2002073000A1 Expander for expanding a tubular element |
| 09/19/2002 | WO2001009478A9 Long reach rotary drilling assembly |
| 09/19/2002 | US20020129940 High temperature explosives for downhole well applications |
| 09/18/2002 | EP1241321A2 Tubular cutting tool |
| 09/18/2002 | CN2511780Y Slipless tubing anchor |
| 09/17/2002 | US6450541 Releasable connector |
| 09/17/2002 | US6450258 Method and apparatus for improved communication in a wellbore utilizing acoustic signals |
| 09/17/2002 | US6450104 Modular observation crawler and sensing instrument and method for operating same |
| 09/12/2002 | US20020125009 Intelligent well system and method |
| 09/12/2002 | US20020125008 Intelligent well system and method |
| 09/12/2002 | US20020125005 Tubing conveyed fracturing tool and method |
| 09/11/2002 | EP1239113A2 Method and apparatus for well testing |