| 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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| 12/10/2009 | US20090301721 Downhole Cyclic Pressure Pulse Generator And Method For Increasing The Permeability Of Pay Reservoir |
| 12/09/2009 | CN201358743Y Fishing and milling integration tool |
| 12/08/2009 | US7628207 Accumulator for subsea equipment |
| 12/08/2009 | US7628206 Dry tree subsea well communications apparatus using variable tension large offset risers |
| 12/08/2009 | US7628205 Optimized machining process for cutting tubulars downhole |
| 12/08/2009 | CA2587163C Sidetrack option for monobore casing string |
| 12/03/2009 | US20090294127 Optimized machining process for cutting tubulars downhole |
| 12/02/2009 | CN101592022A Method for repairing waste rods and pipes by utilizing metallurgical structure growth of multi-component alloy |
| 12/02/2009 | CN100564792C Method for providing a temporary barrier in a flow pathway |
| 12/01/2009 | US7624792 Shear activated safety valve system |
| 11/26/2009 | US20090288884 Method and apparatus for high pressure radial pulsed jetting of lateral passages from vertical to horizontal wellbores |
| 11/26/2009 | US20090288842 Method of radially expanding a tubular element |
| 11/26/2009 | US20090288832 Varying Access Points for Tubing and Casing Monitoring and Casing Annulus Remediation Systems |
| 11/25/2009 | EP2122119A2 Tool and method for establishing hydraulic communication with a subsurface safety valve |
| 11/25/2009 | CN201351486Y Sedimentation cup type oil draining device |
| 11/25/2009 | CN101586454A Process of reinforcing underground supercharged expansion pipe |
| 11/24/2009 | US7621338 Non-orienting tree cap |
| 11/24/2009 | US7621331 Fluid communication nipple having an interior passageway with an interior wall section that may be opened to establish fluid communication with the passageway |
| 11/24/2009 | US7621327 Downhole seal bore repair device |
| 11/24/2009 | US7621321 Method and apparatus for removing casing |
| 11/24/2009 | CA2622596C Methods and apparatus for expanding tubular strings and isolating subterranean zones |
| 11/19/2009 | US20090283274 Connector assembly for connecting a hot stab to a hydraulic hose |
| 11/19/2009 | US20090283271 Plug protection system and method |
| 11/19/2009 | US20090283270 Plug protection system and method |
| 11/12/2009 | WO2009137537A2 Signal operated tools for milling, drilling, and/or fishing operations |
| 11/12/2009 | CA2722612A1 Signal operated tools for milling, drilling, and/or fishing operations |
| 11/11/2009 | CN101575952A Gas power bushing patch device with large drift diameter |
| 11/05/2009 | WO2009134143A2 Top mill tool |
| 11/05/2009 | WO2009085615A9 Borehole imaging and orientation of downhole tools |
| 11/05/2009 | WO2009055380A4 Apparatus and method for milling casing in jet drilling applications for hydrocarbon production |
| 11/05/2009 | US20090272547 Method and apparatus for a downhole excavation in a wellbore |
| 11/05/2009 | US20090272527 Method and Apparatus for Perforating a Casing and Producing Hydrocarbons |
| 11/03/2009 | US7610971 One trip milling system and method |
| 11/03/2009 | CA2537333C Expandable tubulars for use in a wellbore |
| 11/03/2009 | CA2466534C High torque and high capacity rotatable center core and floatable sealed body assemblies with universals ram applications and method |
| 10/29/2009 | US20090266560 Monobore construction with dual expanders |
| 10/29/2009 | US20090266552 Apparatus and Method for Removing Subsea Structures |
| 10/29/2009 | US20090266549 Method and assembly for producing oil and/or gas through a well traversing stacked oil and/or gas bearing earth layers |
| 10/29/2009 | US20090266544 Signal operated tools for milling, drilling, and/or fishing operations |
| 10/28/2009 | CN101566052A Pipe expander for spherical corrugated pipe |
| 10/27/2009 | US7607480 Method for repair of damaged wells |
| 10/22/2009 | WO2009129116A2 Combination whipstock and seal bore diverter system |
| 10/20/2009 | CA2522918C Apparatus and method for cutting a tubular |
| 10/15/2009 | US20090255689 Method of radially expanding a tubular element |
| 10/15/2009 | US20090255686 Method for providing a temporary barrier in a flow pathway |
| 10/15/2009 | US20090255676 Method and apparatus for lateral well drilling with biased length adjusting casing cutter |
| 10/14/2009 | CN201326397Y Drifting and milling combination tool |
| 10/14/2009 | CN101555775A Pilot milling cone tool for repairing casing and method thereof |
| 10/14/2009 | CN100549359C Method and apparatus for replacing BOP with gate valve |
| 10/14/2009 | CA2673197A1 Method and apparatus for lateral well drilling with enhanced capability for clearing cuttings and other particles |
| 10/14/2009 | CA2673191A1 Method and apparatus for lateral well drilling with biased length adjusting casing cutter |
| 10/13/2009 | US7600572 Drillable bridge plug |
| 10/13/2009 | US7600569 Method for installing and connecting a sub-sea riser |
| 10/13/2009 | CA2584492C Expansion cone and system |
| 10/13/2009 | CA2490615C Downhole tool |
| 10/08/2009 | WO2009122203A1 Method of creating an underwater cutting zone, and related plugging devices and methods |
| 10/08/2009 | WO2009122202A1 Abrasive cutting fluids |
| 10/08/2009 | US20090250226 Method for hydraulic rupturing of downhole glass disc |
| 10/08/2009 | US20090250220 Internal pipe slot tool |
| 10/07/2009 | CN101550811A Lifting full water depth outer suspension clutch unlock underwater well head cutting recovery combined tool |
| 10/07/2009 | CN101550810A Outer suspension positioning mechanism of an underwater cutting tool |
| 10/01/2009 | WO2008104179A8 Drilling head for reborinq a stuck valve |
| 10/01/2009 | US20090242213 Downhole Tubular Expansion Tool and Method |
| 09/30/2009 | CN201318140Y Hydraulic combined soft metal patching tube cutting removal device |
| 09/29/2009 | US7594553 Composite tool insert |
| 09/29/2009 | CA2538563C Whipstock anchor |
| 09/24/2009 | US20090236144 Managed pressure and/or temperature drilling system and method |
| 09/24/2009 | US20090236094 Full Bore Cementable Gun System |
| 09/23/2009 | CN101538991A Electromagnetic method pipe fitting shaping technique |
| 09/22/2009 | US7591318 Method for removing a sealing plug from a well |
| 09/22/2009 | US7591316 Production system |
| 09/22/2009 | US7591315 Subsea riser disconnect and method |
| 09/22/2009 | CA2589388C Tubing expansion by cyclic diameter change of an expander |
| 09/17/2009 | WO2009085615A3 Borehole imaging and orientation of downhole tools |
| 09/17/2009 | WO2009073585A3 Bottom hole assembly for casing window milling |
| 09/17/2009 | US20090229836 Method and Apparatus for Expanding a Tubular Member |
| 09/17/2009 | US20090229813 System for injecting a substance into an annular space |
| 09/16/2009 | CN101532376A Variable-nozzle assembly for a turbocharger |
| 09/15/2009 | US7588084 Method for releasing cables from an attached well tool and apparatus for exercising the method |
| 09/15/2009 | CA2595029C Downhole drilling apparatus and method for use of same |
| 09/15/2009 | CA2468900C Method and apparatus for expanding and separating tubulars in a wellbore |
| 09/11/2009 | WO2008101021A8 Tool and method for establishing hydraulic communication with a subsurface safety valve |
| 09/10/2009 | US20090223680 Methods for expanding tubular strings and isolating subterranean zones |
| 09/10/2009 | US20090223672 Apparatus and method for a hydrocarbon production facility |
| 09/08/2009 | US7584796 Drilling rig |
| 09/08/2009 | CA2461278C Corrugated downhole tubulars |
| 09/03/2009 | US20090218098 Methods Of Using A Particle Impact Drilling System For Removing Near-Borehole Damage, Milling Objects In A Wellbore, Under Reaming, Coring, Perforating, Assisting Annular Flow, And Associated Methods |
| 09/03/2009 | US20090218097 Wellbore intervention tool |
| 09/02/2009 | CN101519952A Knife tool component |
| 09/01/2009 | US7581591 Production casing ripper |
| 09/01/2009 | CA2511628C Downhole filter |
| 08/27/2009 | US20090211759 Methods and Devices for Treating Multiple-Interval Well Bores |
| 08/26/2009 | CN101517195A Method of expanding a tubular element |
| 08/25/2009 | US7578349 Lightweight and compact subsea intervention package and method |
| 08/20/2009 | CA2628368A1 Cut release sub and method |
| 08/19/2009 | EP1738056B1 Temperature limited heaters used to heat subsurface formations |
| 08/18/2009 | US7575056 Tubular cutting device |
| 08/18/2009 | US7575050 Method and apparatus for a downhole excavation in a wellbore |
| 08/18/2009 | US7575049 Exit window milling assembly with improved restraining force |
| 08/13/2009 | WO2009099945A2 Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring, perforating, assisting annular flow, and associated methods |