| 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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| 03/11/2008 | CA2447270C Expanding tubing |
| 03/06/2008 | US20080053659 Method of Inhibiting Hydrate Formation |
| 03/06/2008 | US20080053656 Casing Patch Overshot |
| 03/06/2008 | CA2559226A1 Method and apparatus for well casing repair and plugging utilizing molten metal |
| 03/04/2008 | US7337849 Co-linear tensioner and methods of installing and removing same |
| 03/04/2008 | US7337848 Preloaded riser coupling system |
| 02/28/2008 | US20080047714 High pressure large bore utility line connector assembly |
| 02/27/2008 | CN101131070A Protective sleeve for threaded connections for expandable liner hanger |
| 02/26/2008 | CA2328420C Deformable liner tube |
| 02/21/2008 | US20080042428 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 02/21/2008 | US20080041575 Electromagnetic wellbore telemetry system for tubular strings |
| 02/20/2008 | CN201024947Y Hydraulic pressure bushing rectifier |
| 02/20/2008 | CN201024946Y A hydraulic diameter-varying bushing pressure expansion device |
| 02/20/2008 | CN201024945Y Milling shoe for integrated multi-branch well ling pipe |
| 02/19/2008 | US7331395 Riser make-up tool |
| 02/19/2008 | US7331393 Subsea lubricator device and methods of circulating fluids in a subsea lubricator |
| 02/19/2008 | CA2466223C Method for removing a tool from a well |
| 02/19/2008 | CA2391678C Milling apparatus and method for a well |
| 02/12/2008 | US7328750 Sealing plug and method for removing same from a well |
| 02/12/2008 | US7328747 Integrated buoyancy joint |
| 02/12/2008 | US7328741 System for sensing riser motion |
| 02/05/2008 | US7325617 Frac system without intervention |
| 02/05/2008 | US7325598 Vacuum assisted seal engagement for ROV deployed equipment |
| 02/05/2008 | CA2473217C Expanding tubing with a radially extendable expander and cone |
| 01/29/2008 | CA2564290C Downhole sealing for production tubing |
| 01/29/2008 | CA2448691C Expandable tubular having improved polished bore receptacle protection |
| 01/29/2008 | CA2356131C Downhole sealing for production tubing |
| 01/24/2008 | WO2008011199A2 Conductor casing installation by anchor handling/tug/supply vessel |
| 01/24/2008 | WO2007140313A3 Well cleanup tool with real time condition feedback to the surface |
| 01/24/2008 | WO2006132892A3 Pipes, systems, and methods for transporting fluids |
| 01/24/2008 | US20080018099 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 01/24/2008 | US20080017389 Electric pressure actuating tool and method |
| 01/24/2008 | US20080017384 Flow diverter tool assembly and methods of using same |
| 01/24/2008 | US20080017378 Diameter Based Tracking For Window Milling System |
| 01/23/2008 | CN101111661A Method of installing an expandable tubular in a wellbore |
| 01/22/2008 | US7320364 Inhibiting reflux in a heated well of an in situ conversion system |
| 01/22/2008 | CA2501190C Apparatus and method for completing a wellbore |
| 01/22/2008 | CA2475671C Method of repair of collapsed or damaged tubulars downhole |
| 01/22/2008 | CA2299685C Installing a scrolled resilient sheet alongside the inner surface of a fluid conduit |
| 01/17/2008 | US20080011483 Perforating methods and devices for high wellbore pressure applications |
| 01/17/2008 | US20080011468 Apparatus and method for removing outer member of plastic pipe joint |
| 01/16/2008 | CN101107420A Temperature limited heaters used to heat subsurface formations |
| 01/16/2008 | CN101107418A System and method for making hydrocarbon |
| 01/15/2008 | US7318480 Tubing running equipment for offshore rig with surface blowout preventer |
| 01/15/2008 | US7318479 Assembly for connecting a jumper to a subsea structure |
| 01/09/2008 | EP1875031A2 Conductor pipe string deflector and method |
| 01/09/2008 | EP1379755B1 Wireline retrievable safety valve with radial cutting device |
| 01/09/2008 | CN201003387Y Elevator rotor device for well repairing |
| 01/08/2008 | US7316271 Deformable member |
| 01/08/2008 | CA2465446C Tubing expansion |
| 01/08/2008 | CA2448550C Dual sensor freepoint tool |
| 01/08/2008 | CA2341080C Releasable no-go tool |
| 01/08/2008 | CA2288494C One trip milling system |
| 01/08/2008 | CA2246184C Methods of completing and producing a subterranean well and associated apparatus |
| 01/03/2008 | US20080000634 Downhole abrading tools having excessive wear indicator |
| 01/03/2008 | US20080000633 Downhole abrading tools having a hydrostatic chamber and uses therefor |
| 01/01/2008 | US7314088 System for retrieving a tubular element from a well |
| 01/01/2008 | US7314087 Heave compensation system for hydraulic workover |
| 01/01/2008 | US7314084 Subsea pumping module system and installation method |
| 12/20/2007 | US20070289747 Subsea well with electrical submersible pump above downhole safety valve |
| 12/19/2007 | CN200992972Y Milling pipe string washover shoe |
| 12/18/2007 | US7308940 Flexible wellbore broach |
| 12/18/2007 | US7308755 Apparatus for forming a mono-diameter wellbore casing |
| 12/18/2007 | CA2532929C Window reaming and coring apparatus and method of use |
| 12/18/2007 | CA2485210C Packer retriever |
| 12/18/2007 | CA2447565C Downhole motor locking assembly and method |
| 12/13/2007 | WO2007141535A1 Consumable downhole tools |
| 12/13/2007 | WO2007140820A1 A method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose |
| 12/13/2007 | US20070284114 Method for removing a consumable downhole tool |
| 12/13/2007 | US20070284106 Method and apparatus for well drilling and completion |
| 12/13/2007 | US20070284097 Consumable downhole tools |
| 12/12/2007 | CN200989184Y Well packing device |
| 12/12/2007 | CN200989176Y Drilling and grinding shell milling cutter antifalling device |
| 12/12/2007 | CN101086198A Method of creating a borehole in an earth formation |
| 12/11/2007 | US7306404 Device and a method for well intervention |
| 12/11/2007 | US7306056 Directional cased hole side track method applying rotary closed loop system and casing mill |
| 12/11/2007 | US7305915 Efficient pump/motor with reduced energy loss |
| 12/11/2007 | CA2453980C Method of forming a tubing lined borehole |
| 12/06/2007 | WO2007140313A2 Well cleanup tool with real time condition feedback to the surface |
| 12/06/2007 | WO2007140258A2 Perforating methods and devices for high wellbore pressure applications |
| 12/06/2007 | US20070278788 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 12/06/2007 | CA2655646A1 Well cleanup tool with real time condition feedback to the surface |
| 12/05/2007 | CN200985761Y Expansion casing tube start-up cavity device |
| 12/05/2007 | CN200985760Y Blanking adapter easy to removing its expansion casing tube |
| 12/05/2007 | CN200985759Y Expansion casing tube device having cushioning capacity |
| 12/05/2007 | CN200985758Y Reducing expansion-pressure head |
| 12/05/2007 | CN200985757Y Milling shoe |
| 12/04/2007 | CA2494625C Downhole external line cutting apparatus and method |
| 12/04/2007 | CA2413395C Method and device for perforating a portion of casing in a reservoir |
| 11/30/2007 | CA2549799A1 Method and assembly for positioning an internal sleeve |
| 11/29/2007 | WO2007082225A3 Apparatus and method for selective actuation of downhole tools |
| 11/29/2007 | US20070272405 Ribbed sealing element and method of use |
| 11/27/2007 | US7299881 Radial expansion of tubular members |
| 11/27/2007 | CA2462031C Tubing expansion by hoop and compression yield |
| 11/27/2007 | CA2461851C Hydraulically assisted tubing expansion |
| 11/27/2007 | CA2414428C Liner hanger with standoffs |
| 11/27/2007 | CA2260191C Method for expanding a steel tubing and well with such a tubing |
| 11/22/2007 | WO2007132232A1 A whipstock |
| 11/22/2007 | WO2007067544A3 Apparatus, system and method for installing boreholes from a main wellbore |
| 11/22/2007 | WO2007024263B1 Portable electrocrushing drill |