| 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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| 06/10/2008 | CA2535882C Apparatus and methods for preventing or limiting rotation of cementing plugs |
| 06/10/2008 | CA2494290C Disposable downhole tool with segmented compression element and method |
| 06/04/2008 | CN201068777Y Thermal production well liner tube sealing device |
| 06/04/2008 | CN201068754Y Down-hole liner tube sealing device |
| 06/04/2008 | CN201068753Y Down-hole liner tube fixture unit |
| 06/04/2008 | CN201068752Y Composite driven stuck-freeing pipe column for drilling, abrasion, milling |
| 06/03/2008 | US7381905 Structure for fixing an electronic device to a substrate |
| 06/03/2008 | US7380607 Casing hanger with integral load ring |
| 06/03/2008 | US7380603 Well abandonment apparatus |
| 06/03/2008 | CA2519325C Methods and apparatus for expanding tubular strings and isolating subterranean zones |
| 06/03/2008 | CA2517208C Apparatus for radially expanding and plastically deforming a tubular member |
| 06/03/2008 | CA2358663C Electrically controlled release device |
| 05/29/2008 | WO2008064301A2 Internal pipe slot tool |
| 05/28/2008 | CN101187296A Protective sleeve for threaded connections for expandable liner hanger |
| 05/27/2008 | CA2509414C Method and apparatus for positioning a sleeve down hole in a hydrocarbon producing well and pipelines |
| 05/22/2008 | US20080115939 Radial Expansion of Tubular Members |
| 05/21/2008 | CN101182759A Selective localization overshoes |
| 05/20/2008 | US7373990 Method and apparatus for expanding and separating tubulars in a wellbore |
| 05/20/2008 | US7373987 Method and apparatus for preventing spillage or loss of drill fluids |
| 05/20/2008 | US7373986 Riser connector |
| 05/20/2008 | US7373985 Two-part telescopic tensioner for risers at a floating installation for oil and gas production |
| 05/20/2008 | US7373983 Downhole milling machine and method of use |
| 05/20/2008 | CA2461855C Vibration assisted tubing expansion |
| 05/15/2008 | WO2008057654A2 Cutter assembly |
| 05/15/2008 | US20080110612 Methods and apparatuses for electronic time delay and systems including same |
| 05/14/2008 | EP1045958B1 A drill pipe and method of forming and reconditioning a drill pipe |
| 05/14/2008 | CN201059173Y Slim-hole borehole wall enlarging and repairing appliance |
| 05/13/2008 | US7370708 Seal arrangement |
| 05/13/2008 | US7370704 Triaxial temperature limited heater |
| 05/13/2008 | US7370703 Downhole hydraulic pipe cutter |
| 05/13/2008 | US7370702 Single mill casing window cutting tool and method |
| 05/13/2008 | CA2526102C Lightweight and compact subsea intervention package and method |
| 05/08/2008 | US20080105439 Downhole swivel apparatus and method |
| 05/08/2008 | US20080105438 Degradable whipstock apparatus and method of use |
| 05/08/2008 | US20080105436 Cutter Assembly |
| 05/08/2008 | US20080105431 Method For Adapting A Tubular Element In A Subsiding Wellbore |
| 05/08/2008 | US20080105430 Method and Apparatus for Perforating a Casing and Producing Hydrocarbons |
| 05/07/2008 | CN101173602A Oil water well hydraulic expanding tube reshaping and renovation tools |
| 05/06/2008 | US7367404 Tubing seal |
| 05/06/2008 | US7367398 Device for heating and thermally insulating at least one undersea pipeline |
| 05/06/2008 | US7367396 Blowout preventers and methods of use |
| 05/06/2008 | US7367390 Slip energized by longitudinal shrinkage |
| 05/06/2008 | CA2450879C Apparatus for and method of radial expansion of a tubular member |
| 05/01/2008 | US20080100064 Protective Compression and Tension Sleeves for Threaded Connections for Radially Expandable Tubular Members |
| 05/01/2008 | US20080099208 Apparatus for performing well work on floating platform |
| 04/30/2008 | EP1639229B1 Apparatus and method for sealing a wellbore |
| 04/29/2008 | US7363982 Subsea well production flow system |
| 04/29/2008 | US7363968 Umbilical reel safety release |
| 04/29/2008 | CA2537502C Separable plug for use in a wellbore |
| 04/29/2008 | CA2498987C Drillable bridge plug |
| 04/29/2008 | CA2408898C Well reference apparatus and method |
| 04/24/2008 | US20080093082 Underwater seafloor drilling rig |
| 04/24/2008 | US20080093075 Expandable watermelon mill |
| 04/23/2008 | EP1914380A1 Expandable wellbore junction |
| 04/22/2008 | US7360601 Submersible well pump installation procedure |
| 04/22/2008 | CA2238334C Autonomous downhole oilfield tool |
| 04/20/2008 | CA2606907A1 Milling system and method of milling |
| 04/17/2008 | WO2008011199A3 Conductor casing installation by anchor handling/tug/supply vessel |
| 04/17/2008 | US20080087423 Method and Apparatus for a Monodiameter Wellbore, Monodiameter Casing, Monobore, and/or Monowell |
| 04/17/2008 | US20080087418 Pipeline |
| 04/16/2008 | EP1738058B1 Inhibiting effects of sloughing in wellbores |
| 04/16/2008 | EP1738054B1 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 04/16/2008 | EP1738052B1 Inhibiting reflux in a heated well of an in situ conversion system |
| 04/16/2008 | CN201047263Y Ball expansion awl |
| 04/15/2008 | US7357190 Radial expansion of tubular members |
| 04/15/2008 | US7357188 Mono-diameter wellbore casing |
| 04/15/2008 | US7357185 Subsea tubing hanger assembly for an oil or gas well |
| 04/15/2008 | US7357182 Method and apparatus for completing lateral channels from an existing oil or gas well |
| 04/15/2008 | US7357180 Inhibiting effects of sloughing in wellbores |
| 04/15/2008 | CA2455487C Gas lift apparatus for a well |
| 04/08/2008 | US7353889 Rotary driven pipe-bursting tool |
| 04/08/2008 | US7353879 Biodegradable downhole tools |
| 04/08/2008 | US7353872 Start-up of temperature limited heaters using direct current (DC) |
| 04/08/2008 | US7353871 Downhole automatic tool release and method of use |
| 04/08/2008 | US7353867 Whipstock assembly and method of manufacture |
| 04/08/2008 | CA2551067C Axial compression enhanced tubular expansion |
| 04/08/2008 | CA2443140C Internal pressure indicator and locking mechanism for a downhole tool |
| 04/03/2008 | US20080078555 Integral orientation system for horizontal tree tubing hanger |
| 04/01/2008 | US7350584 Formed tubulars |
| 04/01/2008 | US7350569 Separable plug for use in a wellbore |
| 04/01/2008 | US7350564 Mono-diameter wellbore casing |
| 04/01/2008 | CA2328199C Foldable tube |
| 04/01/2008 | CA2308944C Well reference apparatus and method |
| 03/27/2008 | US20080073076 Reduction of expansion force via resonant vibration of a swage |
| 03/26/2008 | EP1903178A2 Three dimensional steerable system |
| 03/26/2008 | CN101148974A Horizontal well sheath repairing tool |
| 03/26/2008 | CN101148973A Sleeving instrument anti-locking device |
| 03/25/2008 | CA2560501C Procedures and equipment for profiling and jointing of pipes |
| 03/20/2008 | WO2008033120A2 Method and apparatus for perforating and isolating perforations in a wellbore |
| 03/20/2008 | WO2008031832A1 Method of expanding a tubular element |
| 03/20/2008 | US20080066924 Retractable ball seat having a time delay material |
| 03/20/2008 | US20080066923 Dissolvable downhole trigger device |
| 03/20/2008 | CA2662100A1 Method of expanding a tubular element |
| 03/19/2008 | EP0927295B1 Wellbore milling system |
| 03/19/2008 | CN201037390Y Fast installed well head bolt nut |
| 03/19/2008 | CN201037385Y Bridge type leak-stopping pipe column |
| 03/19/2008 | CN101144376A Continuous expansion tube |
| 03/18/2008 | US7343977 Translating downhole tool |
| 03/18/2008 | CA2491963C Lining bore holes by using tubing expansion |
| 03/11/2008 | US7341117 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |