| Patents for E21B 29 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground (5,744) |
|---|
| 02/19/2014 | CN102296939B Automatic pressure-balancing expansion-catch integrated expandable tube tool and use method thereof |
| 02/18/2014 | US8651190 Shear boost triggering and bottle reducing system and method |
| 02/13/2014 | US20140041501 Rotary actuated cutter module system and methodology |
| 02/12/2014 | EP2694774A1 Cutting tool for use in fluid-filled cavities and use of the tool |
| 02/12/2014 | CN102162343B Milling shoes for casing window sidetracking |
| 02/11/2014 | CA2761304C Packer retrieving mill with debris removal |
| 02/11/2014 | CA2688186C Mill-through tailpipe liner exit and method of use thereof |
| 02/06/2014 | WO2014022549A1 Remedial technique for maintaining well casing |
| 02/06/2014 | WO2014021893A1 Downhole flow control using porous material |
| 02/06/2014 | US20140034317 Extended duration section mill and methods of use |
| 02/06/2014 | US20140034316 Torsional shearing of oilfield tubulars |
| 02/06/2014 | US20140034315 Radial Conduit Cutting System and Method |
| 02/06/2014 | US20140033885 Method of cutting a control line outside of a tubular |
| 02/05/2014 | CN203420664U Motive seal device used for expansion pipe |
| 02/05/2014 | CN103562493A Perforating gun and arming method |
| 02/05/2014 | CN103562488A Downhole tubing cutter tool |
| 02/05/2014 | CN103556951A Casing windowing drill bit |
| 02/05/2014 | CN102418478B Operation method of hollow guider by using multilateral well windowing sidetrack drilling |
| 02/04/2014 | CA2769844C Cutter body base having channel |
| 02/04/2014 | CA2762205C Auxiliary conduit cutting apparatus |
| 01/30/2014 | US20140027128 Downhold flow inhibition tool and method of unplugging a seat |
| 01/22/2014 | CN203403849U Simple sealing device of expansion pipe stiffener |
| 01/22/2014 | CN103534437A Window joint for lateral wellbore construction and method for opening same |
| 01/22/2014 | CN103534436A Autonomous downhole conveyance system |
| 01/21/2014 | CA2793231C Section mill and method for abandoning a wellbore |
| 01/21/2014 | CA2543067C Methods and apparatus for expanding tubular members |
| 01/16/2014 | WO2014011162A1 Systems and methods for managing milling debris |
| 01/16/2014 | WO2014010267A1 Downhole tool member for hydrocarbon resource recovery |
| 01/16/2014 | US20140014368 Downhole driving unit having a hydraulic motor in a wheel |
| 01/16/2014 | US20140014367 Downhole driving unit having a spring member for assembling a hydraulic motor housing |
| 01/16/2014 | US20140014366 Downhole driving unit having a hydraulic motor with a static cam ring |
| 01/16/2014 | US20140014365 Downhole driving unit having a hydraulic motor with a planetary gearing system |
| 01/16/2014 | US20140014327 Methodology and system for producing fluids from a condensate gas reservoir |
| 01/16/2014 | US20140014315 Modular downhole tool |
| 01/16/2014 | CA2876166A1 Systems and methods for managing milling debris |
| 01/15/2014 | CN203394404U Guide milling cone for well repairing |
| 01/15/2014 | CN203394403U Drifting reaming type float shoe |
| 01/15/2014 | CN203394402U Moving cutting device for oil pipe sucker rod |
| 01/15/2014 | CN103510902A Oil pipe cutting device |
| 01/09/2014 | WO2014007843A1 Method and apparatus for string access or passage through the deformed and dissimilar contiguous walls of a wellbore |
| 01/09/2014 | WO2014007809A1 Method of intersecting a first well bore by a second well bore |
| 01/09/2014 | US20140008129 Multidirectional wellbore penetration system and methods of use |
| 01/08/2014 | EP2681397A2 System and method for coupling a drill bit to a whipstock |
| 01/08/2014 | CN203383764U Power double-mixing type workover rig |
| 01/08/2014 | CN203383763U Roller concave-bottom milling shoe for horizontal well of oil field |
| 01/08/2014 | CN203383762U Roller concave-bottom milling shoe for horizontal well of oil field |
| 01/08/2014 | CN102364029B Integrated window-opening side-drilling tool |
| 01/03/2014 | WO2014004666A1 Stabberless elevator assembly with spider interlock control |
| 01/03/2014 | WO2014004324A2 A method for shortening an injection pipe underground coal gasification |
| 01/03/2014 | WO2014004323A1 Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
| 01/03/2014 | WO2013050978A3 Tubular apparatus for the continuous completion of hydrocarbon wells, and corresponding laying method |
| 01/02/2014 | US20140000902 Reduced mechanical energy well control systems and methods of use |
| 01/02/2014 | US20140000895 Devices and Methods for Severing a Tube-Wire |
| 01/02/2014 | US20140000878 Method for shortening an injection pipe for underground coal gasification |
| 01/02/2014 | US20140000428 Self-Lubricating Saw Blade Assembly with Debris Removal Paths |
| 01/01/2014 | CN203374233U Milling cutter for cutting rubber sleeve of oil-water well |
| 01/01/2014 | CN103492659A Method and system of drilling laterals in shale formations |
| 01/01/2014 | CN103485752A Oilfield water injection method capable of realizing balanced displacement of remaining oil |
| 12/31/2013 | US8616281 Method and apparatus for moving a high pressure fluid aperture in a well bore servicing tool |
| 12/27/2013 | WO2013191832A1 Disintegrable centralizer |
| 12/25/2013 | EP2530238B1 Downhole tubing cutter tool |
| 12/25/2013 | CN203362089U Secondary expansion patching device passing patching tube |
| 12/25/2013 | CN203362088U Composite milling and grinding machine |
| 12/21/2013 | CA2780546A1 Tubular downhole patch for sealing a leak in the casing of a well |
| 12/19/2013 | WO2013187876A1 Jumper tube locking assembly and method |
| 12/19/2013 | US20130333899 Disintegrable centralizer |
| 12/19/2013 | US20130333891 Wellbore isolation device containing a substance that undergoes a phase transition |
| 12/19/2013 | US20130333890 Methods of removing a wellbore isolation device using a eutectic composition |
| 12/19/2013 | CA2875940A1 Jumper tube locking assembly and method |
| 12/18/2013 | CN103452531A Method for underbalanced tubing descending, non-well-killing gas lifting, rotary pumping, pump maintaining and tubing maintaining |
| 12/17/2013 | US8607879 Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use |
| 12/12/2013 | US20130327536 Rotational shear valve |
| 12/11/2013 | CN203335002U High-temperature-resistant expansion pipe used for oil drilling and production equipment |
| 12/10/2013 | US8602102 Blowout preventers and methods of use |
| 12/10/2013 | US8602101 Multi-cycle pipe cutter and related methods |
| 12/10/2013 | CA2682426C Compliant expansion swage |
| 12/05/2013 | WO2013014439A3 Ball valve |
| 12/05/2013 | US20130319675 Face stabilized downhole cutting tool |
| 12/05/2013 | US20130319665 Magnetic Leak Management Apparatus And Methods |
| 12/04/2013 | EP2667992A1 Machining apparatus |
| 12/04/2013 | CN203321396U Expansion pipe expansion tool device |
| 12/04/2013 | CN203321395U Radial window opener of underground casing pipe |
| 11/30/2013 | CA2816173A1 Compliant cone system |
| 11/27/2013 | EP2665883A1 Method and system of drilling laterals in shale formations |
| 11/27/2013 | CN203308415U Drilling and milling tool of falling drill nozzles |
| 11/27/2013 | CN103410468A Motive seal device for expansion pipe |
| 11/27/2013 | CN103410465A Milling shoe |
| 11/27/2013 | CN103410464A Pipe milling device |
| 11/26/2013 | US8590634 Subsea drilling |
| 11/26/2013 | CA2754452C Hydraulically released window mill |
| 11/21/2013 | WO2012168728A3 Tubular assembly and method of deploying a downhole device using a tubular assembly |
| 11/21/2013 | US20130309032 Subsea clamp connector emergency release tool and method |
| 11/21/2013 | US20130306325 Tree cap wedge seal system and method to operate the same |
| 11/20/2013 | EP2205817B1 Anchored riserless mud return systems |
| 11/13/2013 | EP2662526A2 Methods and apparatus for subsea well intervention and subsea wellhead retrieval |
| 11/12/2013 | US8579036 Valving system, method of adjusting a valve and method of fracing a wellbore |
| 11/07/2013 | WO2013165342A1 Wellbore casing section with moveable portion for providing a casing exit |
| 11/07/2013 | US20130292108 Oilfield Downhole Wellbore Section Mill |
| 11/07/2013 | US20130291711 Explosive Device Booster Assembly and Method of Use |
| 11/06/2013 | CN203271678U Combined tapered mill for descaling and drifting |