| 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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| 11/16/2010 | US7832480 Apparatus and method for extracting a tubular string from a bore hole |
| 11/16/2010 | US7832477 Casing deformation and control for inclusion propagation |
| 11/11/2010 | WO2010129888A2 Dual action jet bushing |
| 11/11/2010 | US20100282463 Pump In Reverse Outliner Drilling System |
| 11/11/2010 | CA2760950A1 Dual action jet bushing |
| 11/10/2010 | CN201627554U Device for installing inflatable metal tube in unstable wellbore |
| 11/10/2010 | CN201627553U Silencing and damping dial wheel device used in oil pipe repair |
| 11/09/2010 | US7828064 Downhole swivel apparatus and method |
| 11/04/2010 | WO2010086634A3 Apparatus and method for setting a tool in a borehole |
| 11/04/2010 | US20100276145 Milling system and method of milling |
| 11/03/2010 | CN201620792U Oil-water well casing repair bar and casing repair cylinder |
| 11/03/2010 | CN1946918B Inhibiting effects of sloughing in wellbores |
| 10/28/2010 | US20100270035 System and method to expand tubulars below restrictions |
| 10/28/2010 | US20100270031 Downhole dissolvable plug |
| 10/27/2010 | EP2242896A1 System and method for enhanced wellbore perforations |
| 10/27/2010 | CN201614906U 撑体式磨铣鞋 Support asanas milling shoes |
| 10/26/2010 | US7819198 Friction spring release mechanism |
| 10/21/2010 | WO2010120677A2 Resilient anchor |
| 10/21/2010 | WO2010120180A1 Device for a downhole apparatus for machining of casings and also a method of depositing machined shavings |
| 10/21/2010 | US20100263872 Erosion Resistant Flow Connector |
| 10/21/2010 | US20100263868 Tool and method for abrasive formation of openings in downhole structures |
| 10/21/2010 | CA2758448A1 Device for a downhole apparatus for machining of casings and also a method of depositing machined shavings |
| 10/20/2010 | CN201610730U 一种套变井套管液压膨胀整形装置 One kind of sets variable hydraulic expansion shaping means well casing |
| 10/19/2010 | US7814979 Blowout preventers and methods of use |
| 10/19/2010 | US7814978 Casing expansion and formation compression for permeability plane orientation |
| 10/19/2010 | CA2474028C Riser control device with vertical actuator |
| 10/14/2010 | US20100258311 Casing Patch and Seal |
| 10/14/2010 | US20100258292 Propellant fracturing system for wells |
| 10/14/2010 | US20100258289 Slickline Conveyed Tubular Cutter System |
| 10/13/2010 | CN201606023U 小尺寸螺杆钻具钻磨管柱结构 Small screw hole drilling and grinding string structure |
| 10/12/2010 | US7810569 Method and apparatus for subterranean fracturing |
| 10/12/2010 | US7810568 Method of making a window in a tubular using an expandable watermelon mill |
| 10/12/2010 | US7810553 Coiled tubing wireline cutter |
| 10/12/2010 | CA2458211C Apparatus for radially expanding tubular members including a segmented expansion cone |
| 10/12/2010 | CA2395746C Method and apparatus for a combined exit guide and sectional mill for sidetracking |
| 10/07/2010 | US20100252323 Process for assembling a loading tube |
| 10/07/2010 | US20100252273 Convertible downhole devices |
| 10/07/2010 | US20100252265 Four mill bottom hole assembly |
| 10/06/2010 | CN1633541B Riser control device |
| 10/06/2010 | CN101059068B Self-adapting bulging head expanding tube reinforcement device |
| 10/05/2010 | US7806189 Downhole valve assembly |
| 09/30/2010 | US20100243253 Method and apparatus for moving a high pressure fluid aperture in a well bore servicing tool |
| 09/28/2010 | US7802949 Tubular cutting device |
| 09/28/2010 | US7802619 Firing trigger apparatus and method for downhole tools |
| 09/28/2010 | CA2683054C Latch profile installation in existing casing |
| 09/23/2010 | US20100236785 Method for removing hydrate plug from a flowline |
| 09/22/2010 | CN201588586U Slip sealed sleeve pup joint patch-connector |
| 09/22/2010 | CN201588541U Lateral drill horizontal well high-effective compound windowing mill tap |
| 09/21/2010 | US7798236 Wellbore tool with disintegratable components |
| 09/21/2010 | US7798231 Adapter sleeve for wellhead housing |
| 09/21/2010 | US7798223 Bore isolation |
| 09/16/2010 | WO2010105258A1 Breakaway casing connection |
| 09/16/2010 | US20100230104 Method for completing a borehole |
| 09/15/2010 | CN201581841U Internal casing-scraping tool for multi-lateral well casings |
| 09/14/2010 | US7793721 Apparatus for radially expanding and plastically deforming a tubular member |
| 09/14/2010 | US7793712 Downhole tool |
| 09/14/2010 | CA2453034C Liner hanger |
| 09/10/2010 | WO2010102015A1 Hydraulically released window mill |
| 09/10/2010 | CA2754452A1 Hydraulically released window mill |
| 09/09/2010 | US20100224367 Apparatus and method for milling casing in jet drilling applications for hydrocarbon production |
| 09/08/2010 | CN201574709U Spherical roller pipe expander |
| 09/07/2010 | US7789138 Well casing straddle assembly |
| 09/02/2010 | US20100218952 Method and apparatus to remove a downhole drill collar from a well bore |
| 09/01/2010 | CN201567994U Variable-diameter expansion cone for equal-diameter competed well |
| 09/01/2010 | CN201567993U Pumping rod cutter |
| 09/01/2010 | CN201567992U Expansion tool for equal diameter drill completion |
| 09/01/2010 | CN201567991U Hexagon spiral pilot milling tap |
| 09/01/2010 | CN101818619A Well cementation and completion structure and process for cased branch well with temporarily-sealed opening |
| 08/31/2010 | CA2440742C Expander for expanding a tubular element |
| 08/26/2010 | WO2010065597A3 Expandable tubular installation systems, methods and apparatus |
| 08/26/2010 | US20100212913 Drilling and Completion Deflector |
| 08/26/2010 | US20100212881 Dual Mini Well Surface Control System |
| 08/25/2010 | CN201560733U Explosive loop cable cutter for oil and gas well |
| 08/25/2010 | CN101812980A Expansion tube assembly, oil well subsidy construction mechanism and construction method |
| 08/24/2010 | CA2502006C Method for releasing cables from an attached well tool and apparatus for exercising the method |
| 08/19/2010 | US20100206581 Shearing tool and methods of use |
| 08/17/2010 | US7775290 Apparatus for radially expanding and plastically deforming a tubular member |
| 08/17/2010 | US7775286 Convertible downhole devices and method of performing downhole operations using convertible downhole devices |
| 08/17/2010 | US7775279 Debris-free perforating apparatus and technique |
| 08/17/2010 | US7775269 Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve |
| 08/17/2010 | CA2452620C Umbilical termination assembly and launching system |
| 08/17/2010 | CA2387881C Method and apparatus for operations in underground subsea oil and gas wells |
| 08/12/2010 | WO2010090891A1 Perforating and jet drilling method and apparatus |
| 08/12/2010 | US20100200248 Method of radially expanding a tubular element in a wellbore provided with a control line |
| 08/11/2010 | CN201546651U Local reverse-circulation milling tool |
| 08/11/2010 | CN101182759B Selective localization overshoes |
| 08/10/2010 | CA2413244C Downhole tubular patch, tubular expander and method |
| 08/05/2010 | WO2010086634A2 Apparatus and method for setting a tool in a borehole |
| 08/05/2010 | US20100193199 Apparatus and methods for expanding tubular elements |
| 08/05/2010 | US20100193124 Method of Lining a Well or a Pipe Using an Inflatable Bladder |
| 08/05/2010 | CA2749901A1 Apparatus and method for setting a tool in a borehole |
| 08/04/2010 | CN201539222U Composite milling tool of high-efficiency wing plate |
| 08/04/2010 | CN201539214U Overhauling sleeve-changing pipe column |
| 08/04/2010 | CN101793131A Drilling and grinding tubular column structure of two-stage shunting screw drill |
| 07/27/2010 | US7762351 Exposed hollow carrier perforation gun and charge holder |
| 07/27/2010 | US7762342 Apparatus for providing a temporary degradable barrier in a flow pathway |
| 07/27/2010 | US7762337 Riser pipe with auxiliary lines mounted on journals |
| 07/27/2010 | US7762331 Process for assembling a loading tube |
| 07/27/2010 | US7762330 Methods of making multiple casing cuts |
| 07/22/2010 | US20100181077 Weakpoint coupling of selectively adjustable load bearing capacity |