| 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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| 09/09/2008 | US7422068 Casing patch overshot |
| 09/09/2008 | US7422066 System for direct vertical connection between contiguous subsea equipment and method of installation of said connection |
| 09/09/2008 | US7422055 Coiled tubing wireline cutter |
| 09/08/2008 | CA2624405A1 Expansion system |
| 09/04/2008 | WO2008104179A2 Drilling head for reborinq a stuck valve |
| 09/04/2008 | US20080210432 System and Vessel for Supporting Offshore Fields |
| 09/04/2008 | CA2685063A1 Drilling head for reboring a stuck valve |
| 09/03/2008 | EP1963615A2 Dual-bop and common riser system |
| 09/03/2008 | CN201110146Y Simple tool for reaming air hammer inner tube |
| 09/03/2008 | CN201110145Y Tool for reaming air hammer inner tube |
| 09/02/2008 | US7419009 Apparatus for radially expanding and plastically deforming a tubular member |
| 09/02/2008 | US7419006 Apparatus for protecting wellheads and method of installing the same |
| 09/02/2008 | CA2483812C Expander tool for use in a wellbore |
| 08/28/2008 | WO2008104005A2 Casing window milling assembly |
| 08/28/2008 | WO2008102119A2 Consumable downhole tools |
| 08/28/2008 | US20080202765 Method of Manufacturing Downhole Tool String Components |
| 08/28/2008 | US20080202764 Consumable downhole tools |
| 08/28/2008 | US20080202755 One trip system for circulating, perforating and treating |
| 08/28/2008 | US20080202753 Method and apparatus for expanding and separating tubulars in a wellbore |
| 08/28/2008 | US20080202742 Open Cavity in a Pocket of a Downhole Tool String Component |
| 08/26/2008 | US7416025 Subsea well communications apparatus and method using variable tension large offset risers |
| 08/26/2008 | CA2582794A1 Coil tubing shear for a coil tubing injector |
| 08/21/2008 | US20080196899 Marine Riser Tower |
| 08/20/2008 | EP1957751A2 Downhole hydraulic pipe cutter |
| 08/20/2008 | CN201103359Y Segmented cutter for casing tube of horizontal well |
| 08/20/2008 | CN100412312C Method and device for repairing oil/gas drilling bushing |
| 08/19/2008 | CA2557965C Procedures and equipment for profiling and jointing of pipes |
| 08/19/2008 | CA2389094C Wellbore casing repair by tubing expansion |
| 08/14/2008 | WO2008061071A3 System, apparatus and method for abrasive jet fluid cutting |
| 08/14/2008 | US20080190616 Apparatus for Radially Expanding and Plastically Deforming a Tubular Member |
| 08/13/2008 | CN201100109Y Return and complementary connector for self sealing card tile bushing |
| 08/13/2008 | CN201100108Y Gas dynamics repair and congestion device for oil gas well bushing |
| 08/13/2008 | CN101240697A Minisize down-hole lateral wall annular recess cutting implement |
| 08/12/2008 | US7409996 Control system communication and lock open tool and method for locking open a safety valve and communicating with surface |
| 08/12/2008 | CA2502591C Apparatus and methods for installing instrumentation line in a wellbore |
| 08/12/2008 | CA2455103C Linear displacement measurement method and apparatus |
| 08/12/2008 | CA2164774C Retrievable through tubing tool and method |
| 08/07/2008 | US20080185137 Downhole cutting tool, method of using, and method of making |
| 07/30/2008 | CN201092836Y Reducing pipe expander |
| 07/30/2008 | CN201092835Y Liner tube backing bonded repair tool |
| 07/30/2008 | CN201092834Y High-efficiency milling integrated well-repairing tool |
| 07/29/2008 | CA2509603C Separable plug for use with a wellbore tool |
| 07/29/2008 | CA2383150C Expandable downhole tubing |
| 07/29/2008 | CA2367009C Whipstock casing milling system |
| 07/29/2008 | CA2341119C Methods and associated apparatus for drilling and completing a wellbore junction |
| 07/29/2008 | CA2296122C Window forming by flame cutting |
| 07/24/2008 | WO2008089331A1 Improved mill and method for drilling composite bridge plugs |
| 07/23/2008 | CN201090163Y Ball righting type highly-effective concave bottom milling shoe |
| 07/23/2008 | CN201090162Y Well sleeve ground windowing facility |
| 07/23/2008 | CN201090161Y New type connection and sealing structure for expansion tube |
| 07/23/2008 | CN201090160Y Entity expansion tube base on lead screw transmission |
| 07/23/2008 | CN201090159Y Cover mill shoe |
| 07/23/2008 | CN201090146Y Connecting apparatus for new type expansion tube |
| 07/23/2008 | CN100404785C Method of creating a borehole in an earth formation |
| 07/22/2008 | US7401665 Apparatus and method for drilling a branch borehole from an oil well |
| 07/22/2008 | US7401650 Apparatus and methods for radially expanding a tubular member |
| 07/22/2008 | US7401647 Flush mounted tubular patch |
| 07/22/2008 | CA2308846C Small diameter run in whipstock and method for setting in large diameter casing |
| 07/17/2008 | WO2008085675A1 Method and apparatus for performing laser operations downhole |
| 07/17/2008 | WO2008085062A1 A cutting device and a method for emergency cutting of a line in a well |
| 07/15/2008 | US7398833 Heavy load carry slips and method |
| 07/15/2008 | US7398831 Expandable tubing and method |
| 07/15/2008 | CA2539625C Apparatus and method for expanding a liner patch |
| 07/15/2008 | CA2381212C Anti-rotation device for use with well tools |
| 07/08/2008 | US7395866 Method and apparatus for blow-out prevention in subsea drilling/completion systems |
| 07/08/2008 | CA2471336C Expandable borehole liner |
| 07/08/2008 | CA2465933C Methods and apparatus for reforming and expanding tubulars in a wellbore |
| 07/03/2008 | US20080156498 Hydraulically Controlled Burst Disk Subs (Hcbs) |
| 07/03/2008 | US20080156480 Apparatus for expanding a tubular member |
| 07/02/2008 | EP1815102B1 One trip milling system |
| 07/02/2008 | CN101210485A Design method of expansion sleeve for oil field |
| 07/02/2008 | CN101210484A Elevator rotor equipment for repairing well |
| 07/01/2008 | US7393158 Shrink for centralizer assembly and method |
| 06/26/2008 | WO2008077083A1 Thread fatigue relief for tool joint |
| 06/26/2008 | US20080149338 Process For Assembling a Loading Tube |
| 06/26/2008 | US20080149324 Thread fatigue relief for tool joint |
| 06/25/2008 | EP1272729B1 Whipstock asssembly |
| 06/25/2008 | CN201078210Y Self-locking type multilevel multicomponent seal padding tube |
| 06/25/2008 | CN201078209Y Window repairing milling tool component for branching well |
| 06/25/2008 | CN201078208Y Multifunctional fish top trimmer |
| 06/25/2008 | CN100396878C Composite tool insert |
| 06/24/2008 | US7389818 Method and device by a displacement tool |
| 06/24/2008 | US7389817 Riser control device |
| 06/19/2008 | US20080142229 Apparatus for Radially Expanding and Plastically Deforming a Tubular Member |
| 06/19/2008 | US20080142223 System and method for controlling actuation of a well component |
| 06/19/2008 | US20080142213 Radial expansion of a wellbore casing against a formation |
| 06/18/2008 | CN201074490Y Collection beam sleeve compensating device |
| 06/18/2008 | CN201074489Y Mill sleeve card-dispelling tubular pile for continuous tubing drill |
| 06/17/2008 | US7387175 Window reaming and coring apparatus and method of use |
| 06/17/2008 | US7387169 Expandable tubulars |
| 06/17/2008 | US7387162 Apparatus and method for selective actuation of downhole tools |
| 06/17/2008 | CA2392147C Sealing off openings through the wall of a well tubular |
| 06/12/2008 | WO2007076488A3 Dual-bop and common riser system |
| 06/12/2008 | US20080135252 Adjustable Expansion Cone Assembly |
| 06/12/2008 | US20080135226 Wireline supported tubular mill |
| 06/12/2008 | US20080134508 Method to Provide Slots in Pipes |
| 06/11/2008 | CN201071693Y Anti-clamping device of casing tool |
| 06/10/2008 | US7383889 Mono diameter wellbore casing |
| 06/10/2008 | US7383877 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 06/10/2008 | US7383876 Cutting tool for use in a wellbore tubular |