| 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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| 01/19/2006 | US20060011347 Inner riser adjustable hanger and seal assembly |
| 01/19/2006 | US20060011338 Method for releasing cables from an attached well tool and apparatus for excercising the method |
| 01/18/2006 | EP0948703B1 Apparatus and method for expanding a liner patch; a stroke indicator; and a tubular patch |
| 01/18/2006 | EP0948700B1 Whipstock |
| 01/12/2006 | US20060005998 Pipe conveyed explosive with self contained actuation |
| 01/12/2006 | US20060005971 Method and apparatus for installing an undersea umbilical |
| 01/12/2006 | US20060005968 Temperature limited heaters with relatively constant current |
| 01/12/2006 | US20060005894 Method and apparatus for manufacturing double-walled liner |
| 01/10/2006 | CA2278933C Tool and method for drilling a lateral well |
| 01/05/2006 | US20060000615 Infrastructure-independent deepwater oil field development concept |
| 01/03/2006 | CA2406663C Apparatus and methods for forming a lateral wellbore |
| 12/29/2005 | US20050286977 Closed modular ditch liners |
| 12/28/2005 | EP1127210B1 Connector for an expandable tubing string |
| 12/28/2005 | CN1714225A Tool insert |
| 12/28/2005 | CN1714224A Composite tool insert |
| 12/21/2005 | CN1711407A A method and apparatus for creating a cemented lateral junction system |
| 12/20/2005 | US6976539 Tubing anchor |
| 12/15/2005 | US20050274518 Separable plug for use in a wellbore |
| 12/15/2005 | US20050274511 Separable plug for use with a wellbore tool |
| 12/14/2005 | EP1173655B1 Ribbed sealing element and method of use |
| 12/13/2005 | US6973970 Apparatus and methods for establishing secondary hydraulics in a downhole tool |
| 12/13/2005 | CA2359450C Expandable tubing and method |
| 12/08/2005 | US20050269313 Temperature limited heaters with high power factors |
| 12/08/2005 | US20050269106 Apparatus and methods for operating a tool in a wellbore |
| 12/08/2005 | US20050269095 Inhibiting reflux in a heated well of an in situ conversion system |
| 12/08/2005 | US20050269094 Triaxial temperature limited heater |
| 12/08/2005 | US20050269093 Variable frequency temperature limited heaters |
| 12/08/2005 | US20050269092 Vacuum pumping of conductor-in-conduit heaters |
| 12/08/2005 | US20050269091 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 12/08/2005 | US20050269090 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 12/08/2005 | US20050269089 Temperature limited heaters using modulated DC power |
| 12/08/2005 | US20050269088 Inhibiting effects of sloughing in wellbores |
| 12/08/2005 | US20050269077 Start-up of temperature limited heaters using direct current (DC) |
| 12/08/2005 | US20050269073 Wellbore anchor tool |
| 12/08/2005 | US20050268776 Explosive pipe severing tool |
| 12/07/2005 | EP1478824A4 Well system |
| 12/07/2005 | EP1472433A4 Non-seize material attachment for a drill slip system |
| 12/07/2005 | CN2744826Y Thermal recovery horizontal well casing prestress completion device |
| 12/06/2005 | US6971449 Borehole conduit cutting apparatus and process |
| 12/06/2005 | CA2401347C Cutting matrix and method of applying the same |
| 12/06/2005 | CA2287949C A cutting insert for use in a wellbore milling tool |
| 12/06/2005 | CA2180990C Milling method for liners extending into deviated wellbores |
| 12/01/2005 | US20050263318 Structure for fixing an electronic device to a substrate |
| 12/01/2005 | US20050263296 Deformable member |
| 12/01/2005 | US20050263282 Well abandonment apparatus |
| 12/01/2005 | US20050263280 Method and apparatus for anchoring tool in borehole conduit |
| 11/29/2005 | US6968904 Method and apparatus for operations in underground/subsea oil and gas wells |
| 11/24/2005 | WO2005111369A1 System and vessel for supporting offshore fields |
| 11/24/2005 | US20050257930 Method of developing a re-entry into a parent wellbore from a lateral wellbore, and bottom hole assembly for milling |
| 11/24/2005 | CA2563738A1 System and vessel for supporting offshore fields |
| 11/23/2005 | CN1701160A Device for installation of a profile liner in a well |
| 11/22/2005 | US6966369 Expandable tubulars |
| 11/22/2005 | CA2260512C Improved cutting matrix |
| 11/17/2005 | WO2005108742A2 Method and apparatus for completing lateral channels from an existing oil or gas well |
| 11/17/2005 | US20050252662 Apparatus and method for expanding a tubular |
| 11/15/2005 | US6964303 Horizontal directional drilling in wells |
| 11/15/2005 | CA2487158C Hydraulic underreamer and sections for use therein |
| 11/15/2005 | CA2408672C Wellbore liner system |
| 11/15/2005 | CA2321650C A mill and a method for milling |
| 11/15/2005 | CA2318031C Apparatus and method for milling through a whipstock in a wellbore |
| 11/15/2005 | CA2162035C Preform or matrix tubular structure for well casing |
| 11/10/2005 | WO2005106196A1 Temperature limited heaters used to heat subsurface formations |
| 11/10/2005 | WO2005106195A1 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 11/10/2005 | WO2005106194A1 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 11/10/2005 | WO2005106193A1 Temperature limited heaters used to heat subsurface formations |
| 11/10/2005 | WO2005106191A1 Inhibiting reflux in a heated well of an in situ conversion system |
| 11/10/2005 | WO2004092528A3 Apparatus for radially expanding and plastically deforming a tubular member |
| 11/10/2005 | US20050247451 Method and apparatus for completing lateral channels from an existing oil or gas well |
| 11/10/2005 | CA2564515A1 Temperature limited heaters used to heat subsurface formations |
| 11/10/2005 | CA2563592A1 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 11/10/2005 | CA2563585A1 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 11/10/2005 | CA2563583A1 Temperature limited heaters used to heat subsurface formations |
| 11/09/2005 | EP1592865A1 Method of forming a window in a casing |
| 11/03/2005 | WO2005103445A1 Subsurface electrical heaters using nitride insulation |
| 11/03/2005 | WO2005103444A1 Inhibiting effects of sloughing in wellbores |
| 11/03/2005 | US20050241855 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 11/03/2005 | US20050241834 Tubing/casing connection for U-tube wells |
| 11/03/2005 | US20050241821 System and method for well workover with horizontal tree |
| 11/03/2005 | CA2579496A1 Subsurface electrical heaters using nitride insulation |
| 11/03/2005 | CA2505667A1 Tubing/casing connection for u-tube wells |
| 11/01/2005 | US6959765 Explosive pipe severing tool |
| 11/01/2005 | CA2278932C Tool for making an opening in a tubular in a wellbore |
| 10/27/2005 | WO2005100738A2 Heavy load carry slips and method |
| 10/26/2005 | EP1588021A1 A method and device for drilling into tubulars located within one another |
| 10/26/2005 | EP1141518B1 Downhole sealing for production tubing |
| 10/26/2005 | CN1688788A Method for releasing cables from an attached well tool and apparatus for exercising the method |
| 10/25/2005 | CA2487182C Hydraulic underreamer and sections for use therein |
| 10/20/2005 | WO2005098198A1 Tubing hanger running tool and subsea test tree control system |
| 10/20/2005 | WO2005096792A2 Offshore nitrogen production and injection |
| 10/20/2005 | US20050230124 Mono-diameter wellbore casing |
| 10/20/2005 | US20050230104 Apparatus for expanding a tubular member |
| 10/20/2005 | US20050230103 Apparatus for expanding a tubular member |
| 10/20/2005 | US20050230102 Apparatus for expanding a tubular member |
| 10/18/2005 | CA2487169C Hydraulic underreamer and sections for use therein |
| 10/13/2005 | WO2005021921B1 A method of radially expanding and plastically deforming tubular members |
| 10/13/2005 | US20050224258 Apparatus and methods for powering downhole electrical devices |
| 10/13/2005 | US20050224225 Apparatus for expanding a tubular member |
| 10/11/2005 | US6953093 Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve |
| 10/11/2005 | CA2300834C Cutting insert and milling tool for use in a wellbore |
| 10/06/2005 | US20050217866 Mono diameter wellbore casing |