| 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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| 12/23/2008 | US7467663 High pressure wellhead assembly interface |
| 12/23/2008 | US7467662 Method and apparatus for installing an undersea umbilical |
| 12/23/2008 | CA2551507C Downhole cutting device including a selectively presentable cutter |
| 12/23/2008 | CA2455518C Tubing expansion |
| 12/18/2008 | WO2008154486A2 Multi-deployable subsea stack system |
| 12/18/2008 | US20080308276 Cutting elements for casing component drill out and subterranean drilling, earth boring drag bits and tools including same and methods of use |
| 12/18/2008 | US20080308266 Drillable bridge plug |
| 12/17/2008 | EP0907822B1 Method for expanding a steel tubing and well with such as tubing |
| 12/17/2008 | CN201165857Y High pressure glass fiber reinforced plastic oil manifold milling shoe |
| 12/17/2008 | CN101324177A Oil manifold fish tail rapid cutting machine |
| 12/16/2008 | US7464764 Retractable ball seat having a time delay material |
| 12/16/2008 | US7464762 System for neutralizing the formation of slugs in a riser |
| 12/11/2008 | WO2008151314A2 Interventionless composite packer |
| 12/11/2008 | WO2007143634A3 Insulation shroud with internal support structure |
| 12/10/2008 | EP2000630A1 Downhole 4D pressure measurement apparatus and method for permeability characterization |
| 12/10/2008 | CN201162508Y Sizing scraper |
| 12/10/2008 | CN201162507Y Rotation type pipe cutter |
| 12/10/2008 | CN201162506Y Branching well window-opening tool with expansion tube |
| 12/10/2008 | CN201162498Y Splicing mechanism of expansion prick |
| 12/09/2008 | US7461699 Method for providing a temporary barrier in a flow pathway |
| 12/04/2008 | WO2008118716B1 Downhole cutting tool and method |
| 12/04/2008 | US20080296027 Coiled tubing wireline cutter |
| 12/03/2008 | EP1998001A2 Perforating torch apparatus and method |
| 12/03/2008 | CN201159054Y Expansible screw connection mechanism |
| 12/03/2008 | CN101316980A System and method for performing multiple downhole operations |
| 12/02/2008 | US7458426 Embedding a steel pipe in an excavated well, excavating the underground on the front end of the embedded steel pipe to deepen the well, inserting a second steel pipe; expanding the second steel pipe radially by a tool inserted therein to increase the diameter, excavating, repeating |
| 12/02/2008 | US7458425 System and method of installing and maintaining an offshore exploration and production system having an adjustable buoyancy chamber |
| 11/30/2008 | CA2632851A1 Perforating torch apparatus and method |
| 11/27/2008 | WO2004085790A3 Apparatus for radially expanding and plastically deforming a tubular member |
| 11/26/2008 | EP1994257A2 Expandable tubulars for use in geologic structures |
| 11/26/2008 | CN201155308Y Hydraulic rotor device |
| 11/25/2008 | US7455110 In-situ creation of drilling deflector |
| 11/20/2008 | WO2008118697A3 Casing profiling and recovery system |
| 11/20/2008 | WO2007103707A3 Systems and methods for using an umbilical |
| 11/20/2008 | US20080282924 Shaped Charge and a Perforating Gun |
| 11/19/2008 | EP1991757A2 System for injecting a substance into the space surrounding a well tubular |
| 11/19/2008 | EP1738055B1 Temperature limited heaters used to heat subsurface formations |
| 11/19/2008 | CN201152157Y Oil water well hydraulic expanding pipe shaping and rehabilitating tool |
| 11/19/2008 | CN201152156Y Oil conduit unblocking device for oil gas well |
| 11/19/2008 | CN201152155Y Milling tool |
| 11/18/2008 | US7451821 Blow out preventer transfer platform |
| 11/18/2008 | CA2459538C Method for creating a polished bore receptacle |
| 11/18/2008 | CA2443852C Apparatus and methods for radially expanding a tubular member |
| 11/13/2008 | WO2008135747A2 Pipe cutting apparatus |
| 11/12/2008 | CN201148852Y Steel wire cutting knife for cutting off down-hole steel wire |
| 11/12/2008 | CN101305158A Flush mounted tubular patch |
| 11/12/2008 | CN100432369C Rotary expansion tool for expansible pipe |
| 11/11/2008 | US7449431 Well bore fluid mixture of oil additive, solid colloidal particles coated with dispersants; barite coated with stearyl methacrylate, butyl acrylate; suspnesion stability; drilling fluids |
| 11/06/2008 | WO2008131771A2 Cladding method and expansion tool |
| 11/06/2008 | WO2008079485A3 Smart actuation materials triggered by degradation in oilfield environments and methods of use |
| 11/06/2008 | WO2007106429A3 Expandable tubulars for use in geologic structures |
| 11/06/2008 | CA2684681A1 Cladding method and expansion tool |
| 11/04/2008 | US7445042 Signalling method and apparatus |
| 10/30/2008 | US20080264642 Subsea Well Control System and Method |
| 10/29/2008 | CN201141289Y Novel radius-variable expansion tool |
| 10/28/2008 | CA2551950C Compliant cone for solid liner expansion |
| 10/28/2008 | CA2300600C Method and device for controlling distortion in unrolled metal conduits |
| 10/22/2008 | EP1315881B1 Method and system for perforating |
| 10/22/2008 | CN201137476Y Casing tube shaping device |
| 10/21/2008 | US7438133 Apparatus and method for radially expanding and plastically deforming a tubular member |
| 10/21/2008 | US7438132 Concentric pipes expanded at the pipe ends and method of forming |
| 10/21/2008 | CA2471614C Apparatus for translating a rotary expander tool downhole |
| 10/16/2008 | WO2008124636A1 Apparatus and methods of milling a restricted casing shoe |
| 10/16/2008 | WO2008104179A3 Drilling head for reborinq a stuck valve |
| 10/16/2008 | WO2008102119A3 Consumable downhole tools |
| 10/16/2008 | CA2682316A1 Apparatus and methods of milling a restricted casing shoe |
| 10/15/2008 | CN101285375A Sleeve expanding method for horizontal well |
| 10/14/2008 | US7434624 Hybrid tension-leg riser |
| 10/14/2008 | US7434618 Apparatus for expanding a tubular member |
| 10/14/2008 | CA2497631C Method and apparatus for locating and re-entering one or more horizontal wells using whipstocks |
| 10/09/2008 | US20080245532 Apparatus and methods of milling a restricted casing shoe |
| 10/08/2008 | EP1819897B1 Method for adapting a tubular element in a subsiding wellbore |
| 10/08/2008 | CN201129152Y Milling shoes special for high pressure glass fiber reinforced plastic oil manifold |
| 10/07/2008 | US7431092 Assembly and method for intervention of a subsea well |
| 10/07/2008 | US7431076 Temperature limited heaters using modulated DC power |
| 10/02/2008 | WO2008118725A2 Optimized machining process for cutting tubulars downhole |
| 10/02/2008 | WO2008118716A1 Downhole cutting tool and method |
| 10/02/2008 | WO2008118697A2 Casing profiling and recovery system |
| 10/02/2008 | US20080236840 Thermal actuator |
| 10/02/2008 | US20080236830 Optimized machining process for cutting tubulars downhole |
| 10/02/2008 | US20080236829 Casing profiling and recovery system |
| 10/02/2008 | US20080236828 Tubular cutting device |
| 10/02/2008 | US20080236827 Fluid Communication Nipple |
| 10/01/2008 | CN201125694Y Reinforcement tools for casing patch |
| 10/01/2008 | CN201125693Y Branch well open window tools |
| 10/01/2008 | CN201125692Y Canula hydraulic jet cutterbar |
| 10/01/2008 | CN100422503C Expansion pipe combined well repairing device |
| 09/24/2008 | EP1971751A2 Apparatus and method for selective actuation of downhole tools |
| 09/23/2008 | US7426963 Piggable flowline-riser system |
| 09/23/2008 | CA2507787C Method of developing a re-entry into a parent wellbore from a lateral wellbore, and bottom hole assembly for milling |
| 09/23/2008 | CA2480259C Retrievable through tubing whipstock apparatus having fluid-responsive pivotal anchoring members |
| 09/23/2008 | CA2365966C Method of creating a wellbore in an underground formation |
| 09/18/2008 | US20080223568 Pipe Expander |
| 09/17/2008 | EP1502001B1 Packer retriever |
| 09/16/2008 | US7424918 Interposed joint sealing layer method of forming a wellbore casing |
| 09/16/2008 | US7424917 Subsea pressure compensation system |
| 09/16/2008 | US7424915 Vacuum pumping of conductor-in-conduit heaters |
| 09/16/2008 | US7424909 Drillable bridge plug |
| 09/16/2008 | CA2552031C Mill and pump-off sub |
| 09/12/2008 | WO2008109891A1 A casing patch |