| 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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| 06/19/2002 | CN2495800Y Polish rod regulating device |
| 06/19/2002 | CN1354817A Method and system for moving equipment into and through conduit |
| 06/18/2002 | US6405798 Downhole tool and method |
| 06/13/2002 | WO2002046569A1 Whipstock orientation system and method |
| 06/13/2002 | WO2001004459A9 Downhole anchoring tools conveyed by non-rigid carriers |
| 06/13/2002 | US20020070032 Hydraulic running tool with torque dampener |
| 06/13/2002 | US20020070018 Whipstock orientation system and method |
| 06/13/2002 | US20020070015 Down-hole tool hydraulic force intensifier |
| 06/12/2002 | EP1212510A1 Downhole latch assembly and method of using the same |
| 06/12/2002 | CN1353792A Method of creating well bore |
| 06/11/2002 | US6401827 Tubing hanger running tool |
| 06/11/2002 | US6401826 Lubricator for underbalanced drilling |
| 06/11/2002 | US6401812 Method and apparatus for multilateral well entry |
| 06/06/2002 | WO2002044513A1 Improvements to disconnect devices |
| 06/06/2002 | WO2002044510A2 Seismic shothole reaming module |
| 06/06/2002 | WO2002044509A2 Tractor with improved valve system |
| 06/06/2002 | WO2001092675A3 Method and system for performing operations and for improving production in wells |
| 06/06/2002 | US20020066578 Gravel pack expanding valve |
| 06/06/2002 | US20020066577 Well reference apparatus and method |
| 06/06/2002 | US20020066559 Bore Selector |
| 06/06/2002 | US20020066557 Tubing hanger landing string with blowout preventer operated release mechanism |
| 06/06/2002 | US20020066556 Well having a self-contained inter vention system |
| 06/06/2002 | US20020066309 Monitoring of downhole parameters and tools utilizing fiber optics |
| 06/06/2002 | DE10059860C1 Coupling, for borehole measurement unit, in a drilling pipe, has a lower coupling pin which sits in an opening at a chamber together with a damper mechanism to prevent high frequency oscillations |
| 06/05/2002 | EP1210502A1 Apparatus for and method of anchoring a first conduit to a second conduit |
| 06/05/2002 | EP1210498A1 Smart shuttles to complete oil and gas wells |
| 06/05/2002 | EP0851966B1 System for selective re-entry to completed laterals |
| 06/04/2002 | US6397946 Closed-loop system to compete oil and gas wells closed-loop system to complete oil and gas wells c |
| 06/04/2002 | CA2245098C Method and apparatus for conveying a logging tool through an earth formation |
| 05/30/2002 | WO2002042601A1 Bi-directional traction apparatus |
| 05/30/2002 | US20020062995 Seismic shothole reaming module |
| 05/30/2002 | US20020062993 Method apparatus for horizontal drilling and oil recovery |
| 05/30/2002 | US20020062962 Packer with equalizing valve and method of use |
| 05/30/2002 | US20020062956 Self-lubricating swage |
| 05/28/2002 | US6394193 Downhole adjustable bent housing for directional drilling |
| 05/28/2002 | CA2160647C Helical bearing anchor catcher |
| 05/23/2002 | WO2002040823A1 Adjustable stabiliser for directional drilling |
| 05/23/2002 | WO2002040822A1 Surface-actuated release tool for submersible pump assemblies and releasing method |
| 05/23/2002 | US20020060096 Apparatus to actuate downhole tool |
| 05/23/2002 | US20020060076 Abandonment and retrieval apparatus and method |
| 05/23/2002 | US20020060069 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/23/2002 | US20020060068 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/21/2002 | US6390202 Setting an annular seal |
| 05/21/2002 | US6390200 Drop ball sub and system of use |
| 05/21/2002 | US6390198 Method for running two tubing strings into a well |
| 05/21/2002 | US6390193 Downhole connector for production tubing and control line and method |
| 05/21/2002 | US6389890 Hydraulic strain sensor |
| 05/21/2002 | CA2248287C Fail-safe coupling for a latch assembly |
| 05/21/2002 | CA2045927C Advanced activation and measurement device used during production of non eruptive wells |
| 05/16/2002 | WO2002038343A2 Apparatus and methods for separating and joining tubulars in a wellbore |
| 05/16/2002 | WO2002002900A3 Apparatus and method to complete a multilateral junction |
| 05/16/2002 | US20020056574 Stabilizer for use in a drill string |
| 05/14/2002 | US6386292 Wellbore annulus packer apparatus and method |
| 05/14/2002 | US6386287 Deviated borehole drilling assembly |
| 05/14/2002 | CA2145130C Method for running downhole tools and devices with coiled tubing |
| 05/10/2002 | WO2002036930A1 Hydraulic setting tool with pressure multiplier |
| 05/09/2002 | US20020053438 Hydraulic control system for downhole tools |
| 05/09/2002 | US20020053434 Downhole anchoring tools conveyed by non-rigid carriers |
| 05/09/2002 | US20020053433 Cement diverter system for multilateral junctions and method for cementing a junction |
| 05/08/2002 | EP1203177A1 Expandable joint connector |
| 05/08/2002 | CN2490311Y Two-stage prestressed well cementation casing anchor |
| 05/07/2002 | US6382324 One trip seal latch system |
| 05/07/2002 | US6382323 Releasable no-go tool |
| 05/02/2002 | WO2002035054A1 Method and apparatus for in-situ production well testing |
| 05/02/2002 | US20020050930 Apparatus and method for downhole well equipment and process management, identification, and operation |
| 05/02/2002 | US20020050360 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/02/2002 | EP1201875A2 Downhole tool |
| 05/02/2002 | EP0960263B1 Tool and method for removing excess cement from the top of a liner after hanging and cementing thereof |
| 04/30/2002 | US6378629 Boring apparatus |
| 04/30/2002 | US6378627 Autonomous downhole oilfield tool |
| 04/30/2002 | US6378625 Perforating gun |
| 04/30/2002 | US6378612 Pressure actuated downhole tool |
| 04/30/2002 | US6378606 High temperature high pressure retrievable packer with barrel slip |
| 04/30/2002 | US6378399 Granular particle gripping surface |
| 04/25/2002 | US20020046845 Hydraulic actuator |
| 04/25/2002 | US20020046843 Hydraulic actuator |
| 04/25/2002 | US20020046840 Expandanble tubing and method |
| 04/25/2002 | US20020046834 Hydraulic actuator |
| 04/24/2002 | CN2487862Y Oil pipe anchor |
| 04/24/2002 | CN1083523C Method and apparatus for drilling and re-entering multiple lateral branches in well |
| 04/17/2002 | CN1345396A Method of making conductive downhole wire line system |
| 04/16/2002 | CA2062472C Method and device for placing probes against the walls for cased well |
| 04/16/2002 | CA2042565C Acoustic waves reception system for wells, permitting mechanical decoupling of the sensors |
| 04/11/2002 | WO2002029205A1 Hydraulic control system for downhole tools |
| 04/11/2002 | WO2002029203A1 Well packer and method |
| 04/11/2002 | WO2002029201A1 Electro-mechanical wireline anchoring system |
| 04/11/2002 | US20020040787 Forming a wellbore casing while simultaneously drilling a wellbore |
| 04/11/2002 | US20020040783 Subsea intervention system |
| 04/11/2002 | US20020040782 Subsea intervention |
| 04/11/2002 | CA2595540A1 Method and apparatus for casing expansion |
| 04/11/2002 | CA2424426A1 Electro-mechanical wireline anchoring system |
| 04/10/2002 | CN2485411Y Top driven thread anti-loosing device |
| 04/10/2002 | CN2485410Y Stabilizer for underground tools |
| 04/10/2002 | CN1082602C Well tool and method of performing well operation |
| 04/10/2002 | CN1082601C Logging tool deployment appts. |
| 04/09/2002 | US6368403 Heating molten silicon in container and providing controllable amounts of oxygen gas and hydrogen gas to melt |
| 04/09/2002 | US6367552 Hydraulically metered travel joint |
| 04/09/2002 | US6367545 Electronically controlled electric wireline setting tool |
| 04/09/2002 | US6367366 Sensor assembly |
| 04/04/2002 | WO2001098623B1 Radial expansion of tubular members |