| 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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| 10/06/2009 | CA2452705C Multi-cycle downhole apparatus |
| 10/06/2009 | CA2436957C Methods and mechanisms to set a hollow device into and to retrieve said hollow device from a flow pipe |
| 10/06/2009 | CA2392451C Downhole device |
| 10/01/2009 | WO2009120759A2 Wellbore anchor and isolation system |
| 10/01/2009 | WO2009120578A2 Telescoping wiper plug |
| 10/01/2009 | WO2009088620A3 Screen coupler for modular screen packs |
| 10/01/2009 | US20090243282 Fitting arrangements and methods of installing fitting arrangements in a well bore |
| 10/01/2009 | US20090242212 Wet mate connection for esp pumping system |
| 10/01/2009 | US20090242205 Method and apparatus for detecting acoustic activity in a subsurface formation |
| 10/01/2009 | US20090242187 Hydraulically openable ported sub |
| 10/01/2009 | CA2718793A1 Wellbore anchor and isolation system |
| 09/30/2009 | EP2105577A1 Methods and apparatus for a downhole tool |
| 09/30/2009 | CN201318138Y Special tool for replacing special-shaped packing |
| 09/30/2009 | CN101545362A Latchable carrier assembly for pipe conveyed well logging |
| 09/30/2009 | CN101545361A Fitting arrangements and methods of installing fitting arrangements in a well bore |
| 09/29/2009 | CA2550096C Method and apparatus for friction reduction in a downhole tool |
| 09/29/2009 | CA2538563C Whipstock anchor |
| 09/28/2009 | CA2749138A1 Methods and apparatus for a downhole tool |
| 09/28/2009 | CA2656873A1 Fitting arrangements and method of installing fitting arrangements in a well bore |
| 09/24/2009 | WO2009117478A2 Torque-provider |
| 09/24/2009 | US20090236144 Managed pressure and/or temperature drilling system and method |
| 09/24/2009 | US20090236101 Force Monitoring Tractor |
| 09/24/2009 | US20090236100 Plug retrieval and debris removal tool |
| 09/23/2009 | EP2102443A1 Device or actuating a bottom tool |
| 09/23/2009 | CN201314213Y Large channel hydraulic anchor |
| 09/23/2009 | CN201314212Y Spring return-type steel-wire operation jar coupling |
| 09/23/2009 | CN101538990A System and method for protecting underground component during arrangement and borehole adjustment |
| 09/22/2009 | US7591319 Gas activated actuator device for downhole tools |
| 09/22/2009 | US7591059 Expansion activated anti-rotation device |
| 09/22/2009 | CA2569059C Pressure monitoring of control lines for tool position feedback |
| 09/22/2009 | CA2541947C Sand removal and device retrieval tool |
| 09/22/2009 | CA2526389C Hydraulic setting tool for liner hanger |
| 09/22/2009 | CA2524749C System and method for placement of a packer in an open hole wellbore |
| 09/22/2009 | CA2370918C Up-hole pump-in core barrel apparatus |
| 09/17/2009 | WO2009114371A2 Pressure compensator for hydrostatically-actuated packers |
| 09/17/2009 | WO2009114356A1 Systems, assemblies and processes for controlling tools in a well bore |
| 09/17/2009 | WO2009113894A1 Logging system for use below electric submersible pumps |
| 09/17/2009 | WO2009076340A3 A downhole tool with shape memory alloy actuator |
| 09/17/2009 | WO2009073357A3 High differential shifting tool |
| 09/17/2009 | US20090229836 Method and Apparatus for Expanding a Tubular Member |
| 09/17/2009 | US20090229835 Method and Apparatus for Downhole Tubular Expansion |
| 09/17/2009 | US20090229832 Pressure Compensator for Hydrostatically-Actuated Packers |
| 09/17/2009 | US20090229823 Methods and apparatus for attaching accessories to sand screen assemblies |
| 09/17/2009 | CA2717198A1 Systems, assemblies and processes for controlling tools in a well bore |
| 09/16/2009 | CN101532376A Variable-nozzle assembly for a turbocharger |
| 09/16/2009 | CN100540945C Chain drive system |
| 09/15/2009 | US7588078 Extended reach anchor |
| 09/15/2009 | CA2486682C A downhole tool for use in a wellbore |
| 09/15/2009 | CA2411200C Downhole anchoring tools conveyed by non-rigid carriers |
| 09/10/2009 | US20090223681 Zone isolation assembly for isolating a fluid zone in an existing subsurface well |
| 09/10/2009 | US20090223671 Bore selector |
| 09/10/2009 | US20090223669 Method and a device for solvent injection in a subsurface well |
| 09/09/2009 | EP2098682A2 Electronic completion installation valve |
| 09/09/2009 | EP2097609A1 Coiled tubing tractor assembly |
| 09/09/2009 | EP2097608A1 Hydraulically driven tractor |
| 09/08/2009 | US7584798 Subsurface lubricator and method of use |
| 09/05/2009 | CA2657160A1 Downhole fluid recirculation valve |
| 09/05/2009 | CA2623902A1 Downhole fluid recirculation valve |
| 09/04/2009 | CA2657012A1 Downhole hydraulic control system |
| 09/04/2009 | CA2656848A1 Force balanced stabilizer |
| 09/03/2009 | WO2009108701A1 Bypass sleeve for a wellhead |
| 09/03/2009 | US20090218105 Hydraulically Driven Tandem Tractor Assembly |
| 09/03/2009 | US20090218104 Electronic completion installation valve |
| 09/03/2009 | US20090218097 Wellbore intervention tool |
| 09/03/2009 | US20090218095 Pressure Equalising Devices |
| 09/03/2009 | CA2713714A1 Systems, methods, and devices for isolating portions of a wellhead from fluid pressure |
| 09/02/2009 | EP2096254A2 Control system for an annulus balanced subsurface safety valve |
| 09/02/2009 | EP2094934A2 Restriction element trap for use with and actuation element of a downhole apparatus and method of use |
| 09/02/2009 | CN201301675Y Stabilizer receiving and unloading fixing device |
| 09/01/2009 | US7581595 Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore |
| 08/27/2009 | WO2009105128A1 Downhole trigger apparatus |
| 08/27/2009 | WO2009104109A2 Wellsite systems utilizing deployable structure |
| 08/27/2009 | WO2008087282A3 Measurement device in a horizontal well |
| 08/27/2009 | US20090211770 Elongated Sealing Member for Downhole Tool |
| 08/27/2009 | US20090211765 Method for rapid sealing of boreholes |
| 08/27/2009 | US20090211761 Oil and gas well completion system and method of installation |
| 08/27/2009 | US20090211760 Well servicing tool storage system for subsea well intervention |
| 08/26/2009 | EP2092157A1 Low friction coatings for dynamically engaging load bearing surfaces |
| 08/26/2009 | EP2092156A2 Casing expansion and formation compression for permeability plane orientation |
| 08/26/2009 | CN201297146Y Gate valve replacing tooling of well head device |
| 08/26/2009 | CN201297145Y Limit anchor used for chemical water plugging of oil well |
| 08/26/2009 | CN101514619A Novel direct circulation well cementing device and well cementing method for high-pressure gas underground gas storage well |
| 08/26/2009 | CN101514613A Extension hanger |
| 08/26/2009 | CN101514612A VR plunger feeding in and taking out tool |
| 08/25/2009 | US7578353 Apparatus for controlling slip deployment in a downhole device |
| 08/25/2009 | US7578352 Controlled shared load casing jack system and method of using |
| 08/25/2009 | US7578043 Coupling tubulars |
| 08/25/2009 | CA2465926C A traction apparatus |
| 08/20/2009 | WO2009102701A2 Expandable downhole actuator, method of making and method of actuating |
| 08/20/2009 | WO2009102696A2 One trip liner running, cementing and setting tool using expansion |
| 08/20/2009 | WO2009102218A2 Method and device for position control of a working organ of a down-hole actuator |
| 08/20/2009 | WO2009019483A3 Downhole tool with slip elements having a friction surface |
| 08/20/2009 | US20090206620 Spearhead assembly |
| 08/20/2009 | US20090205843 Expandable packer |
| 08/20/2009 | US20090205839 Expandable connection |
| 08/20/2009 | US20090205836 Hydraulic connector apparatuses and methods of use with downhole tubulars |
| 08/20/2009 | US20090205835 Cut release sub and method |
| 08/20/2009 | US20090205833 Thermal activation mechanisms for use in oilfield applications |
| 08/20/2009 | US20090205831 Method and tool for unblocking a control line |
| 08/20/2009 | US20090205827 Hydraulic connector apparatuses and methods of use with downhole tubulars |