| 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) |
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| 08/13/2009 | US20090200037 Method and arrangement for removing soils, particles or fluids from the seabed or from great sea depths |
| 08/13/2009 | US20090200030 Self adjusting debris excluder sub |
| 08/13/2009 | US20090200010 Downhole Debris Catcher and Associated Mill |
| 08/12/2009 | CN201288525Y Multi-teeth reversible mill shoe |
| 08/12/2009 | CN101503953A Hydraulic rotor device |
| 08/11/2009 | US7571777 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 08/11/2009 | US7571772 System, method, and apparatus for a radially-movable line termination system for a riser string on a drilling rig |
| 08/11/2009 | US7571769 Casing window milling assembly |
| 08/06/2009 | WO2009073360A3 Bypass crossover sub selector for multi-zone fracturing processes |
| 08/06/2009 | WO2009058706A4 Anchored riserless mud return systems |
| 08/06/2009 | US20090194284 Magnetic Motor Shaft Couplings For Wellbore Applications |
| 08/05/2009 | CN100523428C A method and apparatus for creating a cemented lateral junction system |
| 08/04/2009 | CA2509317C Method and apparatus for expanding and separating tubulars in a wellbore |
| 08/04/2009 | CA2466771C Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 08/04/2009 | CA2292171C Wellbore casing |
| 07/30/2009 | WO2009094393A1 System and method for enhanced wellbore perforations |
| 07/30/2009 | US20090188666 Method And System For Completing A Well |
| 07/30/2009 | US20090188569 Method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose |
| 07/30/2009 | CA2712994A1 System and method for enhanced wellbore perforations |
| 07/29/2009 | CN101493002A Control system communication and lock open tool and method for locking open a safety valve and communicating with surface |
| 07/28/2009 | US7565932 Subsea flowline jumper containing ESP |
| 07/28/2009 | US7565931 Dual bore well jumper |
| 07/28/2009 | CA2476669C Tubing expansion tool |
| 07/23/2009 | US20090183884 Method for sealing wellbore leakage and shutting-off of water producing zones |
| 07/22/2009 | EP2079896A2 Offshore universal riser system |
| 07/22/2009 | CN201277000Y Oriented windowing facility for casing |
| 07/22/2009 | CN201276999Y Sleeve milling ring |
| 07/22/2009 | CN100516452C Downhole polymer plug and liner and methods employing same |
| 07/21/2009 | US7562714 Casing patch overshot |
| 07/21/2009 | US7562700 Wireline supported tubular mill |
| 07/21/2009 | CA2422832C Downhole tubular string connections |
| 07/15/2009 | CN101484659A Expandable tubulars for use in geologic structures |
| 07/14/2009 | US7559371 Method and apparatus for centralizing through tubing milling assemblies |
| 07/14/2009 | US7559365 Collapsible expansion cone |
| 07/14/2009 | CA2469752C Method of screen or pipe expansion downhole without addition of pipe at the surface |
| 07/14/2009 | CA2369473C Sand barrier for a level 3 multilateral wellbore junction |
| 07/09/2009 | US20090173500 Method and Apparatus for Well Treatment |
| 07/09/2009 | CA2710621A1 Borehole imaging and orientation of downhole tools |
| 07/08/2009 | CN100510313C Upward pushing type expansion pipe well repairing device |
| 07/07/2009 | CA2578491C Expansion member mated to tubing by threaded connection and methods of use |
| 07/02/2009 | WO2009055380A3 Apparatus and method for milling casing in jet drilling applications for hydrocarbon production |
| 07/02/2009 | US20090166040 Casing deformation and control for inclusion propagation |
| 07/01/2009 | EP1640560B1 Device for arranging a shut-off valve in a well |
| 07/01/2009 | CN201265382Y 刀具模块 Tool Modules |
| 06/30/2009 | US7552772 Locating recess in a shoe for expandable liner system |
| 06/30/2009 | US7552766 Ribbed sealing element and method of use |
| 06/25/2009 | WO2009046082A3 Cutting structures for earth-boring drill bits |
| 06/25/2009 | US20090159286 Method of treating subterranean reservoirs |
| 06/25/2009 | US20090159283 Signal conducting detonating cord |
| 06/24/2009 | EP2072750A2 Mechanical expansion system |
| 06/23/2009 | CA2531549C System and technique for orienting and positioning a lateral string in a multilateral system |
| 06/23/2009 | CA2523862C Apparatus for radially expanding and plastically deforming a tubular member |
| 06/18/2009 | WO2009058706A3 Anchored riserless mud return systems |
| 06/18/2009 | US20090151958 Temporary well zone isolation |
| 06/18/2009 | US20090151952 Energized fluids and pressure manipulation for subsurface applications |
| 06/18/2009 | US20090151949 Debris-free perforating apparatus and technique |
| 06/18/2009 | US20090151948 Device and method for reducing detonation gas pressure |
| 06/18/2009 | US20090151930 Mechanical expansion system |
| 06/18/2009 | US20090151929 Method and Device for Cementing a Well or a Pipe |
| 06/17/2009 | CN101460699A A method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose |
| 06/17/2009 | CN101457637A Sealing expansion tube apparatus for repairing petroleum thermal production well and implementing method |
| 06/16/2009 | US7546886 Method of creating a borehole in an earth formation |
| 06/16/2009 | US7546876 Method and apparatus for jet-fluid abrasive cutting |
| 06/16/2009 | CA2563883C Improved rotary expansion tool, expansion member and methods of assembly |
| 06/11/2009 | WO2009073585A2 Bottom hole assembly for casing window milling |
| 06/11/2009 | WO2009073360A2 Bypass crossover sub selector for multi-zone fracturing processes |
| 06/11/2009 | US20090145605 Staged Actuation Shear Sub for Use Downhole |
| 06/09/2009 | US7543639 Open hole expandable patch and method of use |
| 06/04/2009 | US20090139724 Latch position indicator system and method |
| 06/04/2009 | US20090139721 Bottom Hole Assembly for Casing Window Milling |
| 06/02/2009 | US7540327 Abrasive jet cutting system and method for cutting wellbore tubulars |
| 06/02/2009 | US7540326 System and method for well treatment and perforating operations |
| 06/02/2009 | CA2570746C One trip well drilling to total depth |
| 06/02/2009 | CA2565589C Methods of completing a subterranean well and associated apparatus |
| 06/02/2009 | CA2500706C Lock open tool for downhole safety valve |
| 05/28/2009 | WO2009065578A1 Formation of flow conduits under pressure |
| 05/28/2009 | WO2008101021A3 Tool and method for establishing hydraulic communication with a subsurface safety valve |
| 05/28/2009 | US20090133880 Volumetric compensating annular bellows |
| 05/28/2009 | US20090133877 One Trip Milling System |
| 05/28/2009 | US20090133876 Method and Apparatus for Moving a High Pressure Fluid Aperture in a Well Bore Servicing Tool |
| 05/28/2009 | US20090133873 Method for repair of damaged wells |
| 05/27/2009 | CN201246125Y Sizing vertical scraping and milling machine |
| 05/26/2009 | US7537057 Slimline tieback connector |
| 05/26/2009 | US7537055 Method and apparatus for forming a window in a casing using a biasing arm |
| 05/26/2009 | US7536942 Explosive pipe severing tool |
| 05/26/2009 | CA2615934C Window milling method |
| 05/26/2009 | CA2356184C Tubing anchor |
| 05/21/2009 | US20090126940 Method and System for Well Production |
| 05/20/2009 | CN201241647Y Borehole wall restoring pipe column combining casing tube and corrugated tube |
| 05/20/2009 | CN201241646Y Borehole wall restoring pipe column combining body expansion casing tube and corrugated tube |
| 05/19/2009 | US7533731 Casing apparatus and method for casing or repairing a well, borehole, or conduit |
| 05/19/2009 | CA2373498C Pressure sensor assembly for wellbore |
| 05/13/2009 | CN201236657Y Casing milling oriented sand-settling device |
| 05/13/2009 | CN201236656Y Casing tube windowing and cementing type deflecting unit |
| 05/13/2009 | CN201236655Y Rotation type pipe cutter |
| 05/13/2009 | CN101429848A Method apparatus and for hydraulic jet side drilling radial branching borehole |
| 05/12/2009 | US7530398 Method and apparatus for a cold flow subsea hydrocarbon production system |
| 05/12/2009 | US7530397 Explosive pipe severing tool |
| 05/07/2009 | WO2009058706A2 Anchored riserless mud return systems |
| 05/07/2009 | WO2009007379A3 Method of lining a well or a pipe using an inflatable bladder |