| 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) |
|---|
| 02/17/2011 | WO2011019926A2 Optimized machining process for cutting tubulars downhole |
| 02/16/2011 | EP2283204A1 Consumable downhole tool |
| 02/15/2011 | US7886833 System and method for low-pressure well completion |
| 02/15/2011 | US7886829 Subsea tanker hydrocarbon production system |
| 02/15/2011 | US7886828 Floating vessel for supporting top tension drilling and production risers |
| 02/15/2011 | US7886827 Apparatus for, and method of, landing items at a well location |
| 02/15/2011 | CA2603100C Downhole sealing for production tubing |
| 02/10/2011 | WO2011017692A2 Cutter and cutting tool incorporating the same |
| 02/10/2011 | US20110030971 Overshot Tool and Method |
| 02/10/2011 | CA2769844A1 Cutter body base having channel |
| 02/09/2011 | EP2281998A2 Methods and apparatus for subsea well intervention and subsea wellhead retrieval |
| 02/09/2011 | CN201738854U Casing patching device |
| 02/09/2011 | CN201738853U Copper ring scarf welded suspended sealing structure of expansion tube |
| 02/09/2011 | CN201738852U Large-aperture and body-free explosive charge suitable for drilling rod perforation |
| 02/09/2011 | CN101065554B A sidetracking system and method, and its milling cutter and whipstock |
| 02/03/2011 | WO2011012902A1 Improvements in or relating to cooling |
| 02/03/2011 | CA2768605A1 Improvements in or relating to cooling |
| 02/01/2011 | US7878242 Interface for deploying wireline tools with non-electric string |
| 01/27/2011 | WO2011011574A2 Use of a spoolable compliant guide and coiled tubing to clean up a well |
| 01/27/2011 | WO2010141671A3 Device for the dynamic under balance and dynamic over balance perforating in a borehole |
| 01/27/2011 | US20110017471 Downhole valve assembly |
| 01/27/2011 | US20110017450 Method for making gravel filters in oil wells |
| 01/25/2011 | CA2558701C Method and apparatus for hanging tubulars in wells |
| 01/25/2011 | CA2504988C Tubular expansion fluid production assembly and method |
| 01/25/2011 | CA2468433C A wellhead assembly for communicating with the casing hanger annulus |
| 01/20/2011 | WO2011008633A2 Downhole casing cutting tool |
| 01/20/2011 | CA2821405A1 Wellbore laser operations |
| 01/20/2011 | CA2821345A1 Wellbore laser operations |
| 01/20/2011 | CA2821344A1 Wellbore laser operations |
| 01/20/2011 | CA2820193A1 Downhole casing cutting tool |
| 01/20/2011 | CA2767537A1 Downhole casing cutting tool |
| 01/20/2011 | CA2766165A1 Wellbore laser operations |
| 01/19/2011 | EP2018463B1 A whipstock |
| 01/19/2011 | CN101952542A System and method for enhanced wellbore perforations |
| 01/18/2011 | CA2596094C Improved milling of cemented tubulars |
| 01/13/2011 | WO2011005460A2 Method for providing a temporary barrier in a flow pathway |
| 01/13/2011 | WO2011004183A2 Apparatus and methods for sealing subterranean borehole and performing other cable downhole rotary operations |
| 01/13/2011 | WO2010120677A3 Resilient anchor |
| 01/13/2011 | US20110005768 Method and apparatus for motion compensation during active intervention operations |
| 01/13/2011 | US20110005755 Downhole Casing Cutting Tool |
| 01/13/2011 | CA2767293A1 Apparatus and methods for sealing subterranean borehole and performing other cable downhole rotary operations |
| 01/13/2011 | CA2765401A1 Method for providing a temporary barrier in a flow pathway |
| 01/12/2011 | EP2273064A1 Procedures and equipment for profiling and jointing of pipes |
| 01/12/2011 | CN201705259U Casing damage cell naked eye sleeve taking and replacing circulating device |
| 01/12/2011 | CN201705258U Fishable bottom plug with elastic claw for expansion pipe |
| 01/12/2011 | CN201705257U Expansion pipe running assorted tool for patching of horizontal well casings |
| 01/12/2011 | CN201705256U Direct connection type casing string |
| 01/12/2011 | CN101942979A Anchoring ball type casing truing unit and truing method thereof |
| 01/12/2011 | CN101942978A Preparation method of continuous expansion pipe with high strength and high plastic elasticity |
| 01/11/2011 | CA2629525C Flush mounted tubular patch |
| 01/06/2011 | US20110000670 Blowout preventers and methods of use |
| 01/06/2011 | US20110000669 Perforating Gun Assembly and Method for Controlling Wellbore Pressure Regimes During Perforating |
| 01/06/2011 | US20110000668 Through tubing cable rotary system |
| 01/05/2011 | EP1991757B1 System for injecting a substance into the space surrounding a well tubular |
| 01/05/2011 | CN201695978U Expansion pipe assembly and oil well repair construction mechanism provided with same |
| 01/05/2011 | CN201695977U Expansion cone of expansion pipe assembly and expansion pipe assembly employing same |
| 01/05/2011 | CN201695966U One-way locking mechanism and expansion pipe assembly for oil well subsidy construction |
| 01/04/2011 | US7861783 Method for adapting a tubular element in a subsiding wellbore |
| 01/04/2011 | US7861779 Method and device for establishing an underground well |
| 01/04/2011 | CA2561322C A drill string incorporating an acoustic telemetry system employing one or more low frequency acoustic attenuators and an associated method of transmitting data |
| 01/04/2011 | CA2512057C Coiled tubing wireline cutter |
| 01/04/2011 | CA2467377C Collapsible expansion cone |
| 01/04/2011 | CA2441814C Tubing seal |
| 12/30/2010 | US20100326665 Methods and apparatus for subsea well intervention and subsea wellhead retrieval |
| 12/29/2010 | EP1565642B1 Tool insert |
| 12/29/2010 | CN201687424U Lead sealing tool for broken casing |
| 12/29/2010 | CN1957158B Temperature limited heaters used to heat subsurface formations |
| 12/23/2010 | WO2010147999A2 High-ratio tubular expansion |
| 12/23/2010 | US20100319907 Drilling Tool with Feed Control |
| 12/21/2010 | US7854276 Methods, systems, and apparatus for production of hydrocarbons from a subterranean formation |
| 12/16/2010 | WO2010143975A1 Tube sealing device and a sealing element for such a device. |
| 12/16/2010 | US20100314127 Consumable downhole tools |
| 12/15/2010 | EP1579103B1 Composite tool insert |
| 12/15/2010 | CN201671581U Shaper for deformation of oil well casing |
| 12/15/2010 | CN101915059A Process method for well completion at equal borehole diameter |
| 12/14/2010 | US7849927 Running bore-lining tubulars |
| 12/14/2010 | US7849926 Safety joint |
| 12/11/2010 | CA2707431A1 Downhole tubular expansion tool and method |
| 12/09/2010 | WO2010141401A1 Device for the focus and control of dynamic underbalance or dynamic overbalance in a wellbore |
| 12/09/2010 | US20100307748 Control Line Patch |
| 12/08/2010 | CN1930920B Extracting and processing hydrocarbon-bearing formations |
| 12/08/2010 | CN101906947A Umbrella type variable gauge inflate tool for expansion tube |
| 12/02/2010 | US20100300673 Side track bit |
| 12/01/2010 | CN201661245U Windowing chip-proof joint for branch well |
| 12/01/2010 | CN101240697B Minisize down-hole lateral wall annular recess cutting implement |
| 11/25/2010 | WO2010135490A2 Auxiliary conduit cutting apparatus |
| 11/25/2010 | WO2010135245A2 Intelligent debris removal tool |
| 11/25/2010 | WO2010135114A2 Pressure testable tubing connection |
| 11/25/2010 | WO2009002618A3 Ram bop shear device |
| 11/25/2010 | US20100294478 Auxiliary Conduit Cutting Apparatus |
| 11/25/2010 | US20100294477 Auxiliary Conduit Cutting Apparatus |
| 11/25/2010 | CA2762205A1 Auxiliary conduit cutting apparatus |
| 11/24/2010 | CN201650181U Expansion pipe assembly and driving mechanism thereof |
| 11/24/2010 | CN201650180U Reducing casing expander |
| 11/24/2010 | CN201650179U Packer type sleeve repairing and connecting device with spiral slip |
| 11/18/2010 | WO2010132672A2 Subterranean tubular cutter with depth of cut feature |
| 11/18/2010 | WO2010131064A1 Bore well casting pipe driller |
| 11/18/2010 | WO2008157185A3 Mechanical and fluid jet drilling method and apparatus |
| 11/18/2010 | US20100288491 Subterranean Tubular Cutter with Depth of Cut Feature |
| 11/17/2010 | CN101886529A Technique for repairing fault broken well and opening up passage |