| Patents for E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712) |
|---|
| 12/25/2013 | EP2065553B1 System and method for drilling lateral boreholes |
| 12/25/2013 | CN203362084U Blowout preventer installation device of oil drilling platform |
| 12/25/2013 | CN203362083U Sand blocking prevention hydraulic anchor for horizontal well fracturing |
| 12/25/2013 | CN203362082U Hanger setting tool for gas well fracturing |
| 12/25/2013 | CN203362081U Hydraulic type hydraulic anchor |
| 12/25/2013 | CN203362080U Self-locking type anchoring structure of underground clamping releasing device |
| 12/25/2013 | CN203362079U Downhole tool limiting stopper |
| 12/25/2013 | CN203362078U Novel installing tool for underwater level connector |
| 12/25/2013 | CN203362077U Installation tool of underwater horizontal connector |
| 12/25/2013 | CN203362076U Secondary locking mechanism of underwater horizontal connector installation tool |
| 12/25/2013 | CN203362075U Novel secondary locking mechanism of installation tool for underwater horizontal connector |
| 12/25/2013 | CN103477023A Torque member |
| 12/25/2013 | CN103477022A Arm assembly |
| 12/25/2013 | CN103470203A Velocity string hanger of coiled tubing and hanging method thereof |
| 12/25/2013 | CN102352731B Downhole tubular column lifting device capable of transmitting torque in whole course |
| 12/24/2013 | US8613324 Single trip positive lock adjustable hanger landing shoulder device |
| 12/19/2013 | WO2013188798A1 Drilling device and method |
| 12/19/2013 | WO2013188126A1 System and method utilizing frangible components |
| 12/19/2013 | WO2013062786A3 Gradational insertion of an artificial lift system into a live wellbore |
| 12/19/2013 | US20130333895 Tool for Extracting An Object Engaged in A Fluid Exploitation Pipe, Extraction Device and Related Method |
| 12/19/2013 | US20130333873 Tools and methods for hanging and/or expanding liner strings |
| 12/19/2013 | US20130333872 Magnetic Field Downhole Tool Attachment |
| 12/18/2013 | EP2452040B1 A down hole well tool provided with a piston |
| 12/18/2013 | EP2255064B1 Multi-cycle single line switch |
| 12/18/2013 | CN203347718U Running tool for hydraulic packer |
| 12/18/2013 | CN203347717U Automatic dropping-fishing machine |
| 12/18/2013 | CN103459765A Borehole metal member bonding system and method |
| 12/18/2013 | CN103459763A Modular downhole tool |
| 12/18/2013 | CN103459762A Hydraulic assembly |
| 12/18/2013 | CN103459761A Service panel |
| 12/18/2013 | CN103459760A Downhole driving unit having hydraulic motor with planetary gearing system |
| 12/18/2013 | CN103459759A Downhole driving unit having a spring member for assembling a hydraulic motor housing |
| 12/18/2013 | CN103459758A Downhole driving unit having a hydraulic motor with a static cam ring |
| 12/18/2013 | CN103459757A Downhole driving unit having hydraulic motor in wheel |
| 12/18/2013 | CN103452531A Method for underbalanced tubing descending, non-well-killing gas lifting, rotary pumping, pump maintaining and tubing maintaining |
| 12/18/2013 | CN103452509A Wellhead descending tool |
| 12/17/2013 | US8607861 Metal-to-metal seal with retention device |
| 12/17/2013 | US8607860 Flexible collet anchor assembly with compressive load transfer feature |
| 12/17/2013 | US8607858 Spiral whipstock for low-side casing exits |
| 12/12/2013 | WO2013184467A1 Actuation and release tool for subterranean tools |
| 12/12/2013 | WO2013184302A1 Wellbore isolation while placing valves on production |
| 12/12/2013 | WO2013184301A1 Apparatus configuration downhole |
| 12/12/2013 | WO2013184147A1 Swellable packer with enhanced anchoring and/or sealing capability |
| 12/12/2013 | US20130327546 Tubing string with latch system |
| 12/12/2013 | US20130327545 System and method utilizing frangible components |
| 12/12/2013 | US20130327544 Wireline Pressure Setting Tool and Method of Use |
| 12/12/2013 | US20130327540 Methods of removing a wellbore isolation device using galvanic corrosion |
| 12/11/2013 | EP2670940A1 Methods of maintaining sufficient hydrostatic pressure in multiple intervals of a wellbore in a soft formation |
| 12/11/2013 | CN203335000U Packing pressure feed tool of beam-pumping unit |
| 12/11/2013 | CN103443391A Fail-safe spring |
| 12/11/2013 | CN103437731A Transporting and mounting device for blowout preventer stack in drilling operation |
| 12/11/2013 | CN102230366B Direct-control throwing and refloating device |
| 12/10/2013 | US8602115 Grip enhanced tractoring |
| 12/10/2013 | US8602114 Open-hole wellbore lining |
| 12/05/2013 | WO2013181413A1 Fluid displacement tool and method |
| 12/05/2013 | WO2013181308A1 Assembly and technique for completing a multilateral well |
| 12/05/2013 | US20130319692 Compliant cone system |
| 12/05/2013 | US20130319690 Pull Through Centralizer |
| 12/05/2013 | US20130319689 Pull Through Centralizer |
| 12/05/2013 | US20130319688 Rotating casing hanger |
| 12/05/2013 | US20130319687 Apparatus Configuration Downhole |
| 12/05/2013 | US20130319684 Friction reducing stabilizer |
| 12/05/2013 | US20130319683 Anchor |
| 12/04/2013 | EP2668366A2 Setting tool |
| 12/04/2013 | EP2519707B1 Downhole guiding tool |
| 12/04/2013 | CN203321389U Emergency drill rod hanging tool for horizontal underwater Christmas tree |
| 12/04/2013 | CN203321388U Packing taking-out device for pumping well |
| 12/04/2013 | CN203321387U Electric release fishing device |
| 12/04/2013 | CN103422824A Feeding and releasing tool |
| 12/04/2013 | CN103422812A Single-well coal bed gas multi-branch horizontal well drilling and completion method |
| 12/04/2013 | CN102383752B Novel method and equipment for removing jamming by explosion break-outing for extended reach wells and horizontal wells |
| 12/03/2013 | US8596350 Lock mandrel load distribution apparatus |
| 12/03/2013 | CA2750931C Single piece packer extrusion limiter ring |
| 11/29/2013 | CA2791570A1 Anchor |
| 11/28/2013 | US20130312982 Thermal release mechanism for downhole tools |
| 11/28/2013 | US20130312981 Washover Tieback Method |
| 11/27/2013 | CN203308443U Circulating gas injection pipe column |
| 11/27/2013 | CN203308412U Selective and drillable anchoring mechanism for packer |
| 11/27/2013 | CN203308411U Sand prevention hydraulic anchor |
| 11/27/2013 | CN203308410U High-pressure gas injection tubular column release tool |
| 11/27/2013 | CN102383766B Self-heating natural gas hydrate preventing device |
| 11/27/2013 | CN101949280B Anti-scaling and anti-sand device connected with oil pumping tubing string into whole and application method |
| 11/26/2013 | US8590628 Selective sleeve system and method of moving a sleeve |
| 11/26/2013 | US8590624 Bridging hanger and seal running tool |
| 11/26/2013 | US8590623 Downhole tools and methods of setting in a wellbore |
| 11/26/2013 | US8590615 Casing device |
| 11/26/2013 | US8590609 Sneak path eliminator for diode multiplexed control of downhole well tools |
| 11/21/2013 | WO2013173159A1 Packing element backup system |
| 11/21/2013 | WO2012168728A3 Tubular assembly and method of deploying a downhole device using a tubular assembly |
| 11/21/2013 | US20130306328 Actuator switch for a downhole tool, tool and method |
| 11/21/2013 | US20130306313 Washpipe isolation valve and associated systems and methods |
| 11/20/2013 | CN203296730U Hydraulic-starting buckling and releasing mechanism |
| 11/20/2013 | CN203296729U Gravel prevention hydraulic anchor |
| 11/20/2013 | CN203296728U Hydraulic anchor |
| 11/20/2013 | CN203296727U Mechanical-hydraulic double-action release rotary tail pipe hanger |
| 11/20/2013 | CN203296726U Fast oil well spraying repairing device |
| 11/20/2013 | CN103397862A Hanger |
| 11/20/2013 | CN103397861A Non-workover pump detection device for electric submersible pump |
| 11/19/2013 | CA2735367C Position indicating multiplexed control system for downhole well tools |
| 11/19/2013 | CA2713973C Ball catcher with retention capability |