| 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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| 02/28/2001 | EP1078145A2 Coupling with shape-memory material , disconnecting tool with a piston and coupling with valves |
| 02/28/2001 | CA2317282A1 Releasable connector |
| 02/27/2001 | US6192983 Coiled tubing strings and installation methods |
| 02/22/2001 | WO2001012946A1 Smart shuttles to complete oil and gas wells |
| 02/21/2001 | EP0900317B1 Apparatus and method for downhole drilling communications |
| 02/20/2001 | US6189621 Smart shuttles to complete oil and gas wells |
| 02/20/2001 | US6189616 Expandable wellbore junction |
| 02/20/2001 | US6189610 Anchoring tool |
| 02/20/2001 | CA2053919C Valves |
| 02/15/2001 | WO2001011188A1 Selective re-entry tool for multiple tubing completions and method of using |
| 02/15/2001 | WO2000046481A3 Downhole tractor |
| 02/13/2001 | US6186229 Downhole connector for production tubing and control line and method |
| 02/13/2001 | CA2222200C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222194C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222191C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222182C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222102C Spoolable coiled tubing completion system |
| 02/09/2001 | CA2634315A1 Device for anchoring an oil well tubing string within an oil well casing |
| 02/08/2001 | WO2001009478A1 Long reach rotary drilling assembly |
| 02/06/2001 | US6182766 Drill string diverter apparatus and method |
| 02/06/2001 | US6182765 System and method for deploying a plurality of tools into a subterranean well |
| 02/06/2001 | US6182762 Storm valve |
| 02/06/2001 | US6182750 Device for performing downhole functions |
| 01/31/2001 | EP1071864A1 A system and method for locating a tool in a wellbore, a tubular and a device for the system |
| 01/31/2001 | EP1032748A4 Flexible sinker bar assemblies |
| 01/30/2001 | US6181642 Apparatus and method for borehole seismic exploration |
| 01/30/2001 | US6179058 Measuring method and system comprising a semi-rigid extension |
| 01/30/2001 | US6179055 Conveying a tool along a non-vertical well |
| 01/30/2001 | US6179052 Digital-hydraulic well control system |
| 01/25/2001 | WO2001006086A1 Downhole bypass valve |
| 01/24/2001 | EP1070196A1 Apparatus and method for enhancing remote sensor performance |
| 01/24/2001 | CN1061122C Bit segments for ground drill bit |
| 01/23/2001 | US6176318 Actuator apparatus and method for downhole completion tools |
| 01/23/2001 | CA2123298C Trenchless pipeline replacement |
| 01/18/2001 | WO2001004520A1 Expandable joint connector |
| 01/18/2001 | WO2001004459A1 Downhole anchoring tools conveyed by non-rigid carriers |
| 01/18/2001 | WO2001004458A1 Hydraulic setting tool |
| 01/18/2001 | WO2001004456A1 Lubricator for underbalanced drilling |
| 01/18/2001 | DE10028015A1 Adding a liner to a borehole by inserting liner on a mandrel, injecting liquid between the liner and the borehole and expanding the liner onto the wall |
| 01/17/2001 | EP1068425A1 Drillstring with stabilisers for re-entering a primary wellbore |
| 01/17/2001 | EP1068424A1 Apparatus with coil springs and method for supporting a cable in a tubing |
| 01/16/2001 | US6173796 Sleeve for orientating a tool |
| 01/16/2001 | US6173795 Multi-cycle circulating sub |
| 01/16/2001 | US6173787 Method and system intended for measurements in a horizontal pipe |
| 01/16/2001 | US6173786 Pressure-actuated running tool |
| 01/16/2001 | US6173772 Controlling multiple downhole tools |
| 01/11/2001 | WO2001002699A1 Method of deploying an electrically driven fluid transducer system in a well |
| 01/11/2001 | WO2001002697A1 Apparatus and method for controlling fluid flow |
| 01/09/2001 | US6172614 Method and apparatus for remote actuation of a downhole device using a resonant chamber |
| 01/09/2001 | US6170578 Monobore riser bore selector |
| 01/09/2001 | US6170573 Freely moving oil field assembly for data gathering and or producing an oil well |
| 01/09/2001 | US6170570 Sinker bar for cable-operated well apparatus |
| 01/04/2001 | WO2000053887A3 Wellbore primary barrier and related systems |
| 01/04/2001 | WO2000031376A3 Method and system for accessing subterranean deposits from the surface |
| 01/03/2001 | EP1064451A1 Pressure actuated downhole tool |
| 01/02/2001 | US6167974 Method of underbalanced drilling |
| 01/02/2001 | US6167970 Isolation tool release mechanism |
| 01/02/2001 | US6167968 Method and apparatus for radially drilling through well casing and formation |
| 01/02/2001 | US6167961 Small diameter run in whipstock and method for setting in large diameter casing |
| 12/27/2000 | EP1062529A1 Clamped receiver array using coiled tubing conveyed packer elements |
| 12/27/2000 | EP1038087A4 Assembly and process for drilling and completing multiple wells |
| 12/27/2000 | EP0857247A4 Assembly and process for drilling and completing multiple wells |
| 12/26/2000 | US6164377 Downhole packer system |
| 12/26/2000 | US6164375 Apparatus and method for manipulating an auxiliary tool within a subterranean well |
| 12/26/2000 | CA2216668C Telescoping joint for use in a conduit connected to a wellhead and zone isolating tool for use therewith |
| 12/21/2000 | WO2000077431A2 Expandable connector |
| 12/19/2000 | US6161622 Remote actuated plug method |
| 12/14/2000 | WO2000075484A1 Apparatus and method for controlling fluid flow in a wellbore |
| 12/14/2000 | WO2000075476A1 Method of creating a wellbore |
| 12/13/2000 | CN2410414Y High pressure sealed air relief mechanism |
| 12/12/2000 | US6158533 Adjustable gauge downhole drilling assembly |
| 12/12/2000 | US6158513 Multiple string completion apparatus and method |
| 12/12/2000 | US6158512 Method and apparatus for the removal of sand in an underwater well |
| 12/12/2000 | CA2017324C Apparatus for testing an oil well, and corresponding method |
| 12/07/2000 | WO2000073619A1 Subsurface apparatus |
| 12/07/2000 | CA2310878A1 Lubrication and self-cleaning system for expansion mandrel |
| 12/05/2000 | US6155346 Downhole anchor |
| 12/05/2000 | US6155344 Downhole tool connection for live well deployment |
| 11/30/2000 | WO2000071851A1 Method of and apparatus for inserting tubing into a well bore |
| 11/30/2000 | WO2000046485A3 Apparatus and method for enhancing remote sensor performance |
| 11/29/2000 | EP1055798A2 Apparatus and method for setting a liner by hydraulic pressure |
| 11/29/2000 | EP1055797A2 Drill string diverter apparatus and method |
| 11/28/2000 | US6152233 Surge anchor assembly |
| 11/28/2000 | US6152232 Underbalanced well completion |
| 11/28/2000 | US6152224 Downhole apparatus |
| 11/28/2000 | US6152222 Hydraulic device to be connected in a pipe string |
| 11/28/2000 | US6152219 Downhole pulling tool |
| 11/28/2000 | CA2128903C Multi-arm stabilizer for a drilling or boring device |
| 11/23/2000 | WO2000029710A3 Wellbore flow control device |
| 11/21/2000 | US6148925 Method of making a conductive downhole wire line system |
| 11/21/2000 | US6148916 Apparatus for releasing, then firing perforating guns |
| 11/21/2000 | CA2101814C Equipment enabling the interconnection of two lines to allow running of pigs |
| 11/16/2000 | WO2000037766A3 Procedures and equipment for profiling and jointing of pipes |
| 11/16/2000 | WO2000029708A3 Method and apparatus for selective injection or flow control |
| 11/15/2000 | CN1058547C Assembly and process for drilling and completing multiple wells |
| 11/14/2000 | US6145598 Hydrostatic, slow actuating subterranean well tool manipulation device and method |
| 11/14/2000 | CA2158514C Method and apparatus for intermittent production of oil with a mechanical interface |
| 11/09/2000 | WO2000066877A1 Ribbed sealing element and method of use |
| 11/07/2000 | US6142246 Multiple lateral hydraulic drilling apparatus and method |
| 11/07/2000 | US6142231 One-trip conveying method for packer/plug and perforating gun |