| 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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| 01/11/2007 | US20070007013 Downhole gas compressor |
| 01/11/2007 | US20070007001 Redundant systems for downhole permanent installations |
| 01/11/2007 | US20070007000 Method of drilling an enlarged sidetracked well bore |
| 01/10/2007 | EP1333963B1 Apparatus and methods for separating and joining tubulars in a wellbore |
| 01/10/2007 | CN2856388Y Hauling milling tool for lateral drilling |
| 01/10/2007 | CN2856387Y Movable knuckle joint |
| 01/10/2007 | CN1891972A Rotary expansion tool for expansible pipe |
| 01/09/2007 | US7159665 Wellbore casing |
| 01/04/2007 | WO2006057996A3 Dual bore well jumper |
| 01/04/2007 | WO2006033906A3 A subsea wellhead arrangement for hydraulically pumping a well |
| 01/03/2007 | EP1738058A1 Inhibiting effects of sloughing in wellbores |
| 01/03/2007 | EP1738057A1 Subsurface electrical heaters using nitride insulation |
| 01/03/2007 | EP1738056A1 Temperature limited heaters used to heat subsurface formations |
| 01/03/2007 | EP1738055A1 Temperature limited heaters used to heat subsurface formations |
| 01/03/2007 | EP1738054A1 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 01/03/2007 | EP1738053A1 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 01/03/2007 | EP1738052A1 Inhibiting reflux in a heated well of an in situ conversion system |
| 01/03/2007 | CN1293282C In-situ casting of well equipment |
| 01/02/2007 | US7156180 Expandable tubing and method |
| 01/02/2007 | US7156179 Expandable tubulars |
| 01/02/2007 | US7156170 Methods and apparatus for severing nested strings of tubulars |
| 01/02/2007 | CA2451658C Drillable junction joint |
| 01/02/2007 | CA2324705C Dual cutting mill |
| 01/02/2007 | CA2289811C Isolation of subterranean zones |
| 01/02/2007 | CA2249139C Method and apparatus for top to bottom expansion of tubulars |
| 12/28/2006 | WO2006057995A3 Well production and multi-purpose intervention access hub |
| 12/28/2006 | WO2005038188A3 Inline compensator for a floating drilling rig |
| 12/28/2006 | US20060289536 Subsurface electrical heaters using nitride insulation |
| 12/28/2006 | US20060289159 System and method for collecting escaping hydrocarbons from a breached well pipe |
| 12/27/2006 | CN2851536Y Well wall maintenance device while drilling |
| 12/27/2006 | CN1292145C Drill rod clamp system and method for reducing cold-welding effect between their components |
| 12/26/2006 | US7154411 Reservoir management system and method |
| 12/26/2006 | US7152698 Downhole motor locking assembly and method |
| 12/26/2006 | US7152682 Subsea process assembly |
| 12/26/2006 | US7152679 Downhole tool for deforming an object |
| 12/26/2006 | US7152673 Contractable and expandable tubular wellbore system |
| 12/26/2006 | US7152657 In-situ casting of well equipment |
| 12/21/2006 | WO2006101618A3 Hydraulically controlled burst disk subs (hcbs) |
| 12/21/2006 | US20060283607 Bore isolation |
| 12/20/2006 | CN1882759A Method for providing a temporary barrier in a flow pathway |
| 12/19/2006 | US7150325 ROV retrievable sea floor pump |
| 12/19/2006 | US7150324 Method and apparatus for riserless drilling |
| 12/19/2006 | US7150323 Shoulder ring set on casing hanger trip |
| 12/19/2006 | CA2526376C Wellbore junction assembly |
| 12/14/2006 | US20060278393 Method and apparatus for completing lateral channels from an existing oil or gas well |
| 12/14/2006 | CA2621350A1 Pipes, systems, and methods for transporting fluids |
| 12/13/2006 | EP1509673B1 A device for a hydraulic cutting tool |
| 12/13/2006 | EP1472433B1 Non-seize material attachment for a drill slip system |
| 12/13/2006 | CN2846717Y Workover finding and reaming angle top grind shoe |
| 12/12/2006 | US7147053 Wellhead |
| 12/12/2006 | US7146913 Shaped charge tubing cutter |
| 12/12/2006 | US7146835 Method and apparatus to reduce slot width in tubular members |
| 12/12/2006 | CA2356144C Method and apparatus for expanding an isolation tubing |
| 12/06/2006 | CN2844407Y Hydraulic deformed casing repairing unit under well |
| 12/06/2006 | CN2844406Y Hydraulic expandable assembled sectional hobbing |
| 12/06/2006 | CN2844405Y Hydraulic expandable hobbing |
| 11/30/2006 | US20060266527 Apparatus for radially expanding and plastically deforming a tubular member |
| 11/30/2006 | US20060266205 Explosive pipe severing tool |
| 11/29/2006 | EP1726187A2 Extracting and processing hydrocarbon-bearing formations |
| 11/28/2006 | US7140446 Connector for expandable well screen |
| 11/28/2006 | CA2481696C Method and apparatus to reduce the width of a slot or opening in a pipe, tube or other object |
| 11/28/2006 | CA2427034C Expanding wellbore junction |
| 11/28/2006 | CA2336905C Downhole tension swivel sub |
| 11/28/2006 | CA2331381C A method for the formation of a plug in a petroleum well |
| 11/23/2006 | US20060260809 Method and apparatus for replacing drive pipe |
| 11/23/2006 | US20060260798 Wired Tool String Component |
| 11/23/2006 | US20060260796 One trip flow tube exercising tool |
| 11/21/2006 | US7137451 Controlling and/or testing a hydrocarbon production system |
| 11/21/2006 | CA2405993C Whipstock assembly |
| 11/21/2006 | CA2361928C Mills for wellbore operations |
| 11/16/2006 | WO2004025069A3 System and method of drilling and completion |
| 11/16/2006 | US20060254824 Flow operated orienter |
| 11/16/2006 | US20060254776 Co-linear tensioner and methods of installing and removing same |
| 11/16/2006 | US20060254773 Coiled tubing cutter |
| 11/16/2006 | US20060254763 Single line control module for well tool actuation |
| 11/15/2006 | CN2837499Y Weight control device on drilling bit |
| 11/15/2006 | CN1284750C Pyrotechnic composition for thermal pipe cutter and process for making same |
| 11/14/2006 | US7134531 Heavy load carry slips and method |
| 11/14/2006 | US7134506 Deformable member |
| 11/14/2006 | US7134502 Method and apparatus for preventing spillage or loss of drill fluids |
| 11/14/2006 | US7134498 Well drilling and completions system |
| 11/08/2006 | EP1719873A1 Expandable sleeve |
| 11/08/2006 | EP1319115B1 Methods and apparatus for forming a lateral wellbore |
| 11/08/2006 | CN2835534Y Bottomless expansion pipe diameter expanding device |
| 11/08/2006 | CN1283895C Method and apparatus for locating indexing systems in cased well and conducting multilateral branch operations |
| 11/07/2006 | US7131498 Expander for expanding a tubular element |
| 11/04/2006 | CA2542990A1 Expandable sleeve |
| 11/02/2006 | US20060243444 apparatus for radially expanding and plastically deforming a tubular member |
| 11/01/2006 | CN2833106Y Adjustable anti-seize drift size gauge tool |
| 11/01/2006 | CN2833094Y Expansion casing string |
| 10/31/2006 | US7128162 Method and apparatus for positioning a sleeve down hole in a hydrocarbon producing well and pipelines |
| 10/31/2006 | US7128159 System and method for limiting vortex-induced vibrations on an offshore production riser |
| 10/31/2006 | US7128155 Cutting tool and method of cutting an object in a well |
| 10/31/2006 | CA2443527C Pressure wave expansion tool |
| 10/31/2006 | CA2398001C Isolation of subterranean zones |
| 10/31/2006 | CA2184322C Multiple lateral hydrocarbon recovery system and method |
| 10/29/2006 | CA2543067A1 Methods and apparatus for expanding tubular members |
| 10/26/2006 | US20060237188 Compliant cladding seal/hanger |
| 10/25/2006 | EP1295005B1 Milling of casing using coiled tubing |
| 10/25/2006 | CN1281845C System for carrying well equipment in the well |