| 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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| 08/03/2011 | CN201915888U 连续油管井口悬挂密封装置 Coiled tubing wellhead seal suspension |
| 08/03/2011 | CN201915875U 一种油套管主阀的不丢手换阀装置 An oil casing of the main valve is not lost hand for valve device |
| 08/03/2011 | CN201915874U 井口支撑器 Wellhead holder |
| 08/03/2011 | CN201915873U 带过流槽的卡瓦式套管悬挂器 Casing with overcurrent slip hanger slot |
| 08/03/2011 | CN201915872U 海上钢丝作业工具快速释放器 Offshore work tool steel quick release device |
| 08/02/2011 | CA2617072C Subterranean wellbore apparatus |
| 08/02/2011 | CA2516074C Expandable whipstock anchor assembly |
| 07/29/2011 | CA2729490A1 Downhole tubular expander and method |
| 07/28/2011 | WO2011090639A2 Method and apparatus for releasing a packer |
| 07/28/2011 | WO2011063170A3 Expansion system for expandable tubulars |
| 07/28/2011 | WO2011062624A3 Landing system for well casing |
| 07/28/2011 | WO2011044483A3 Downhole tool actuation devices and methods |
| 07/28/2011 | US20110180272 Wet connection system for downhole equipment |
| 07/27/2011 | CN201908596U Anti-reverse rotation device for screw pump |
| 07/27/2011 | CN201908595U Safety type tool orientator capable of reducing and shearing |
| 07/27/2011 | CN201908594U Device for delivering testing instrument of oil well |
| 07/27/2011 | CN201908593U Polished rod sealer replacing device |
| 07/27/2011 | CN201908592U Mandrel hanger fixing device |
| 07/27/2011 | CN201908591U Hanging clip of gland nut of packing box of oil production wellhead |
| 07/26/2011 | US7984765 System and method for well intervention |
| 07/21/2011 | WO2011088428A1 Electrically triggered pressure set packer assembly |
| 07/21/2011 | WO2011088354A1 Resilient foam debris barrier |
| 07/21/2011 | WO2011088294A1 Resilient foam debris barrier |
| 07/21/2011 | US20110174500 Connecting assembly |
| 07/21/2011 | US20110174480 Pressure Relieving Transition Joint |
| 07/21/2011 | CA2787241A1 Resilient foam debris barrier |
| 07/19/2011 | US7980307 Downhole window finder system |
| 07/19/2011 | US7980300 Drillable bridge plug |
| 07/19/2011 | US7980299 Horizontal well treating method |
| 07/19/2011 | US7980107 Variable diameter pipe expander |
| 07/14/2011 | WO2011085215A2 Wirelessly actuated hydrostatic set module |
| 07/14/2011 | WO2011084220A2 Control swelling of swellable packer by pre-straining the swellable packer element |
| 07/14/2011 | WO2011084067A1 Subsea cap |
| 07/14/2011 | WO2011056292A3 Actuation system for well tools |
| 07/14/2011 | US20110168409 High Capacity Running Tool |
| 07/14/2011 | US20110168408 Setting tool for expandable liner hanger and associated methods |
| 07/14/2011 | US20110168407 Bearing contact pressure reduction in well tools |
| 07/14/2011 | US20110168404 Downhole tool |
| 07/14/2011 | US20110168386 Tubing expansion |
| 07/13/2011 | EP1709285B1 Split locking ring for wellhead components |
| 07/13/2011 | CN201896597U Simple platform for quick assembly of blowout prevention pipe of oil/water well |
| 07/13/2011 | CN102124181A Well completion system |
| 07/13/2011 | CN102121358A Multifunctional tail pipe hanger |
| 07/12/2011 | CA2766026A1 Tools and methods for use in completion of a wellbore |
| 07/12/2011 | CA2485664C Downhole tool deployment safety system and methods |
| 07/12/2011 | CA2465425C Tubing string anchoring tool |
| 07/11/2011 | CA2727080A1 Tubular expansion tool and method |
| 07/07/2011 | WO2011080292A1 Downhole guiding tool |
| 07/07/2011 | WO2011056393A3 Systems and methods for initiating annular obstruction in a subsurface well |
| 07/07/2011 | WO2011044074A3 Active integrated completion installation system and method |
| 07/07/2011 | WO2011037974A3 Wireline cable for use with downhole tractor assemblies |
| 07/07/2011 | WO2011017411A4 Drill bit with an adjustable steering device |
| 07/07/2011 | WO2011004183A3 Apparatus and methods for sealing subterranean borehole and performing other cable downhole rotary operations |
| 07/07/2011 | US20110163560 Downhole tool releasing mechanism |
| 07/07/2011 | US20110162854 Open-hole wellbore lining |
| 07/07/2011 | US20110162850 Slant well desalination feedwater supply system and method for constructing same |
| 07/07/2011 | DE112009000358T5 Ausdehnbares Bohrlochstellelement, Verfahren zur Herstellung und Verfahren zur Betätigung The expandable downhole actuator, methods of making and method of operating |
| 07/07/2011 | CA2785939A1 Downhole guiding tool |
| 07/06/2011 | EP2341211A1 Downhole guiding tool |
| 07/06/2011 | EP2340350A2 Downhole device actuator and method |
| 07/06/2011 | CN1727636B Method and system for accessing subterranean deposits from the surface |
| 07/05/2011 | CA2617044C Axial indexing well tool |
| 07/04/2011 | CA2701485A1 Process and apparatus to improve reliability of pinpoint stimulation operations |
| 06/30/2011 | WO2011079265A2 High expansion metallic seal |
| 06/30/2011 | WO2011079264A2 High expansion metallic seal |
| 06/30/2011 | WO2011079169A2 Hydraulic deployment of a well isolation mechanism |
| 06/30/2011 | WO2011077218A2 Automatic modular maintenance device operating in the annulus of a well for the production of hydrocarbons |
| 06/30/2011 | WO2011046682A3 Ball catcher with retention capability |
| 06/30/2011 | WO2011041305A3 Line retention arrangement and method |
| 06/30/2011 | US20110155468 Side-tracking system and related methods |
| 06/30/2011 | US20110155395 Method and apparatus for releasing a packer |
| 06/29/2011 | EP2337924A1 Downhole tool of high pressure operating cycle capability |
| 06/29/2011 | CN201883972U Packing filling device for oil well polished rod |
| 06/29/2011 | CN201883971U Slip-type sleeve hanger |
| 06/29/2011 | CN201883970U Vertical disassembling tool for rotary control head |
| 06/29/2011 | CN201883969U Electric pump cable lateral wing crossing and sealing device |
| 06/29/2011 | CN201883968U Device for installing and removing while-drilling downhole instrument |
| 06/29/2011 | CN102108844A Packer fixing ring and oil/water self-expandable packer with same |
| 06/28/2011 | US7967077 Interventionless set packer and setting method for same |
| 06/28/2011 | US7967075 High angle water flood kickover tool |
| 06/28/2011 | US7967072 Logging head release mechanism |
| 06/28/2011 | CA2501400C Device for installation of a profile liner in a well |
| 06/23/2011 | WO2011073631A2 System and method for lateral wellbore entry, debris removal, and wellbore cleaning |
| 06/23/2011 | US20110147015 Seal Bore for High Expansion Bridge Plugs |
| 06/23/2011 | US20110147012 Downhole Apparatus with a Swellable Support Structure |
| 06/23/2011 | US20110147011 Apparatus and method to support a tubular member |
| 06/23/2011 | US20110147001 Wellhead annulus monitoring |
| 06/23/2011 | US20110146970 Anchor Tool |
| 06/22/2011 | CN201874501U Underground self-expansion type hanger |
| 06/21/2011 | US7963341 Apparatus and methods of use for a whipstock anchor |
| 06/21/2011 | US7963321 Swellable downhole packer |
| 06/21/2011 | CA2626755C Diverter plugs for use in well bores and associated methods of use |
| 06/21/2011 | CA2508665C Anchoring device for a wellbore tool |
| 06/16/2011 | WO2011071619A2 Ultra high temperature packer by high-temperature elastomeric polymers |
| 06/16/2011 | WO2011071513A1 Non-explosive power source for actuating a subsurface tool |
| 06/16/2011 | WO2011071391A2 Kick-over tool |
| 06/16/2011 | WO2011022580A3 Zero backlash downhole setting tool and method |
| 06/16/2011 | WO2010062186A9 Downhole actuator |
| 06/16/2011 | US20110139437 Wireline Run Mechanically or Hydraulically Operated Subterranean Insert Barrier Valve and Associated Landing Nipple |
| 06/16/2011 | CA2780472A1 Kick-over tool |