| 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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| 11/03/2005 | US20050241824 Methods of servicing a well bore using self-activating downhole tool |
| 11/02/2005 | EP1159507B1 Method of making a conductive downhole wire line system |
| 11/02/2005 | CN2737932Y Casing head wear-resisting case extractor |
| 11/01/2005 | US6959766 Downhole ball drop tool |
| 11/01/2005 | US6959759 Expandable packer with anchoring feature |
| 11/01/2005 | CA2374857C A tractor for use in a bore |
| 11/01/2005 | CA2278932C Tool for making an opening in a tubular in a wellbore |
| 11/01/2005 | CA2145730C Method and apparatus for anchoring a wellbore tool to a casing in a wellbore including a primary and a secondary anchor release mechanism |
| 11/01/2005 | CA2120365C Method and apparatus for locating and re-entering one or more horizontal wells using whipstocks |
| 10/27/2005 | WO2005100742A1 One trip completion system |
| 10/27/2005 | WO2005100740A2 Flapper opening mechanism |
| 10/27/2005 | WO2005045174A3 Gravel pack completion with fiber optic monitoring |
| 10/27/2005 | US20050236163 Mono-diameter wellbore casing |
| 10/27/2005 | US20050236162 Method and apparatus for expandable liner hanger with bypass |
| 10/27/2005 | US20050236159 Threaded connection for expandable tubulars |
| 10/27/2005 | US20050236157 Apparatus and method for transporting and deploying downhole completion components |
| 10/27/2005 | US20050236154 Isolation assembly for coiled tubing |
| 10/27/2005 | US20050236153 Deploying an assembly into a well |
| 10/27/2005 | US20050236050 Multiple line administration |
| 10/27/2005 | US20050236049 In-line multi-port selector valve |
| 10/26/2005 | EP1588016A1 Wellstring assembly |
| 10/26/2005 | CN2736523Y Sucker rod string rotor for rod-pumped well |
| 10/26/2005 | CN1688787A Apparatus and methods for installing casing in a borehole |
| 10/25/2005 | CA2411363C Apparatus and method to complete a multilateral junction |
| 10/25/2005 | CA2280034C Tool and method for removing excess cement from the top of a liner after hanging and cementing thereof |
| 10/22/2005 | CA2591567A1 Method of fracing or stimulating a formation |
| 10/20/2005 | WO2005098197A1 Flow switchable check valve |
| 10/20/2005 | US20050230124 Mono-diameter wellbore casing |
| 10/20/2005 | US20050230123 Seal receptacle using expandable liner hanger |
| 10/20/2005 | US20050230122 Setting Tool for Hydraulically Actuated Devices |
| 10/20/2005 | US20050230119 Multi-cycle downhole apparatus |
| 10/20/2005 | US20050230108 Liner top test packer |
| 10/20/2005 | US20050230101 Method and apparatus to vibrate a downhole component |
| 10/19/2005 | EP1392953A4 Line hanger, running tool and method |
| 10/19/2005 | EP1282758B1 Bypass valve |
| 10/19/2005 | CN2734992Y Broken polished rod production recovery auxiliary device for pumping well |
| 10/19/2005 | CN2734980Y Tubing anchor oil drainer |
| 10/19/2005 | CN2734979Y Rotary eccentric tubing anchor |
| 10/19/2005 | CN2734978Y Pretension hydraulic tubing anchor |
| 10/18/2005 | US6955218 Placing fiber optic sensor line |
| 10/18/2005 | CA2286187C Apparatus for removing an item from a wellbore |
| 10/18/2005 | CA2255510C Control line actuation of multiple downhole components |
| 10/18/2005 | CA2220331C Actuating ball |
| 10/18/2005 | CA2190260C Whipstock and method for setting such a whipstock |
| 10/18/2005 | CA2164254C Metal to metal sealing wireline plug |
| 10/18/2005 | CA2156987C Diverter and method for running a diverter |
| 10/13/2005 | US20050224234 Flapper opening mechanism |
| 10/13/2005 | US20050224233 Hydrodynamic, down-hole anchor |
| 10/13/2005 | US20050224232 Workover unit and method of utilizing same |
| 10/13/2005 | US20050224231 Flow switchable check valve |
| 10/13/2005 | US20050224226 Force Transfer Apparatus to Assist Release of Loaded Member |
| 10/12/2005 | EP1583886A2 Isolated electrical connection in a drill string |
| 10/12/2005 | EP1350005B1 Hydraulic running tool |
| 10/12/2005 | CN2732983Y Hydraulic packer release |
| 10/12/2005 | CN2732982Y Branch well reentering tool |
| 10/12/2005 | CN1682007A Drilling method |
| 10/12/2005 | CN1222682C Method of deploying electrically driven fluid transducer system in well |
| 10/11/2005 | US6953094 Subterranean well completion incorporating downhole-parkable robot therein |
| 10/11/2005 | US6953086 Bi-directional traction apparatus |
| 10/11/2005 | CA2240520C Apparatus for setting a liner in a well casing |
| 10/06/2005 | WO2005093206A1 One trip perforating, cementing, and sand management apparatus and method |
| 10/06/2005 | US20050217869 High pressure expandable packer |
| 10/06/2005 | US20050217867 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 10/06/2005 | US20050217866 Mono diameter wellbore casing |
| 10/06/2005 | US20050217865 System for radially expanding a tubular member |
| 10/06/2005 | US20050217864 Circulating sub |
| 10/06/2005 | US20050217861 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 10/06/2005 | US20050217855 Method and a device for removing a hydrate plug |
| 10/06/2005 | US20050217850 Sealing Mechanism for a Subterranean Well |
| 10/06/2005 | US20050217847 One trip completion system |
| 10/06/2005 | US20050217846 Device for a long well tool |
| 10/05/2005 | EP1582274A2 Procedures and equipment for profiling and jointing of pipes |
| 10/05/2005 | EP1581720A1 Seal cup for a wellbore tool and method |
| 10/05/2005 | EP1581719A1 Actuation devices, tools and apparatus |
| 10/05/2005 | EP1581718A1 Anchoring device for a wellbore tool |
| 10/05/2005 | EP1549825A4 Dockable direct mechanical actuator for downhole tools and method |
| 10/05/2005 | CN2731075Y Rotation-proof oil pipe anchor |
| 10/05/2005 | CN2731070Y 碳纤维连续抽油杆夹持器 Continuous carbon fiber rod holder |
| 10/05/2005 | CA2503476A1 Sealing mechanism for a subterranean well |
| 10/04/2005 | US6951252 Surface controlled subsurface lateral branch safety valve |
| 10/04/2005 | CA2356148C Profile formation on a tube |
| 10/04/2005 | CA2314575C Anti-torque tool |
| 10/04/2005 | CA2300548C Improved free fall survey instrument |
| 10/04/2005 | CA2250228C Monobore riser bore selector |
| 10/04/2005 | CA2190798C Shaft alignment |
| 10/01/2005 | CA2502496A1 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 09/29/2005 | WO2005090739A1 Roller link toggle gripper for downhole tractor |
| 09/29/2005 | WO2005089458A2 Use of electromagnetic acoustic transducers in downhole cement evaluation |
| 09/29/2005 | US20050211446 System and method for installing a liner in a borehole |
| 09/29/2005 | US20050211442 System and method for low-pressure well completion |
| 09/29/2005 | US20050211441 Apparatus and methods for installing instrumentation line in a wellbore |
| 09/28/2005 | CN2729297Y Movable edge plate torque anchor |
| 09/28/2005 | CN1675447A High expansion anchor system |
| 09/27/2005 | US6948561 Indexing apparatus |
| 09/27/2005 | CA2376445C Wiper plug delivery apparatus |
| 09/27/2005 | CA2201384C Apparatus for the remote measurement of physical parameters |
| 09/22/2005 | US20050205269 Deep set packer with hydrostatic setting actuator |
| 09/22/2005 | US20050205268 Method and apparatus for generation of acoustic shear waves through casing using physical coupling of vibrating magnets |
| 09/22/2005 | US20050205266 Biodegradable downhole tools |
| 09/22/2005 | US20050205265 One-time use composite tool formed of fibers and a biodegradable resin |