| 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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| 04/13/2007 | CA2563259A1 Expandable tubular member |
| 04/12/2007 | WO2007021335A3 Vertical annular separation and pumping system with integrated pump shroud and baffle |
| 04/12/2007 | WO2006044763B1 Subsea junction plate assembly running tool and method of installation |
| 04/12/2007 | WO2004111380A3 Wellhead assembly with pressure actuated seal assembly and running tool |
| 04/12/2007 | WO2004083595A3 Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons |
| 04/11/2007 | CN1946919A Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 04/11/2007 | CN1946918A Inhibiting effects of sloughing in wellbores |
| 04/11/2007 | CN1946917A Inhibiting reflux in a heated well of an in situ conversion system |
| 04/11/2007 | CN1944946A Upward pushing type expansion pipe well repairing device |
| 04/11/2007 | CN1944945A Expansion pipe combined well repairing device |
| 04/11/2007 | CN1309935C Tubular system located in shaft |
| 04/10/2007 | CA2536468C Expandable connector for borehole tubes |
| 04/10/2007 | CA2388126C Sleeve for stiffening an output shaft on a mill |
| 04/05/2007 | US20070074873 Wellbore tool with disintegratable components |
| 04/05/2007 | US20070074868 Wear resistant tubular connection |
| 04/05/2007 | US20070074624 Explosive pipe severing tool |
| 04/04/2007 | EP1399644B1 Method for preparing wellbore casing for installation |
| 04/04/2007 | CN2886063Y Metal tube expansion tool |
| 04/03/2007 | US7198108 Changing the temperature of offshore produced water |
| 04/03/2007 | US7198100 Apparatus for expanding a tubular member |
| 03/29/2007 | WO2006050378A3 Ram bop shear device |
| 03/29/2007 | WO2006033906B1 A subsea wellhead arrangement for hydraulically pumping a well |
| 03/28/2007 | EP1592907B1 Method for cutting and removing underwater pipelines and apparatus for implementing this method |
| 03/28/2007 | CN2883658Y Downhole broken articles catch sleeve |
| 03/28/2007 | CN2883657Y Mending tool for broken steel tubes of oil/gas/water well |
| 03/28/2007 | CN2883656Y Borehole through section mill cutter of branch well |
| 03/27/2007 | US7195083 Three dimensional steering system and method for steering bit to drill borehole |
| 03/27/2007 | US7195064 Mono-diameter wellbore casing |
| 03/27/2007 | US7195061 Apparatus for expanding a tubular member |
| 03/22/2007 | US20070062692 Wellsite communication system and method |
| 03/22/2007 | US20070062687 Flow tube exercising tool |
| 03/21/2007 | CN2881071Y Multipurpose well pigging gauge |
| 03/20/2007 | US7191836 Dry tree subsea well communications apparatus and method using variable tension large offset risers |
| 03/20/2007 | US7191835 Disengagable burr mill |
| 03/20/2007 | CA2537867C Apparatus and methods for separating and joining tubulars in a wellbore |
| 03/15/2007 | WO2006023690A3 A modular, distributed, rov retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use |
| 03/15/2007 | WO2005016581A3 Casing cutter |
| 03/15/2007 | US20070056745 System and Method for Controlling Actuation of Tools in a Wellbore |
| 03/15/2007 | US20070056743 Method of radially expanding and plastically deforming tubular members |
| 03/15/2007 | US20070056739 System, method, and apparatus for a corrosion-resistant sleeve for riser tensioner cylinder rod |
| 03/14/2007 | CN2878657Y Subsidiary device for multi-functional oil well bushing |
| 03/13/2007 | US7188687 Downhole filter |
| 03/13/2007 | US7188674 Downhole milling machine and method of use |
| 03/13/2007 | CA2534876C Downhole deflecting tool with attached mill |
| 03/13/2007 | CA2464631C Method and apparatus to reduce slot width in tubular members |
| 03/13/2007 | CA2295466C Lateral well tie-back method and apparatus |
| 03/08/2007 | WO2006102171A3 Apparatus and method for radially expanding a wellbore casing using an expansion system |
| 03/08/2007 | WO2005108742A3 Method and apparatus for completing lateral channels from an existing oil or gas well |
| 03/06/2007 | US7185710 Mono-diameter wellbore casing |
| 03/06/2007 | US7185709 Expandable tubing and method |
| 03/06/2007 | US7185705 System and method for recovering return fluid from subsea wellbores |
| 03/06/2007 | US7185701 Apparatus and method for radially expanding a tubular member |
| 03/06/2007 | US7185700 Separable plug for use with a wellbore tool |
| 03/01/2007 | WO2007024263A2 Portable electrocrushing drill |
| 03/01/2007 | US20070046115 Tri-line power cable for electrical submersible pump |
| 03/01/2007 | US20070044954 Downhole motor locking assembly and method |
| 03/01/2007 | CA2661026A1 Portable electrocrushing drill |
| 02/28/2007 | CN2874009Y Up-and-down wall scraper |
| 02/28/2007 | CN1920243A Method and device for repairing oil/gas drilling bushing |
| 02/27/2007 | CA2534883C Casing mill with core breaking mechanism |
| 02/27/2007 | CA2356194C Procedures and equipment for profiling and jointing of pipes |
| 02/22/2007 | WO2007021337A1 Vertical annular separation and pumping system with outer annulus liquid discharge arrangement |
| 02/22/2007 | WO2006058244A3 Shear/seal ram assembly for a ram-type blowout prevention system |
| 02/22/2007 | US20070039727 Retaining lines in bypass groove on downhole equipment |
| 02/21/2007 | EP1399641B1 Pipe centralizer and method of attachment |
| 02/20/2007 | US7178609 Window mill and drill bit |
| 02/20/2007 | US7178598 Device for a hydraulic cutting tool |
| 02/15/2007 | US20070034409 Method and apparatus for a downhole excavation in a wellbore |
| 02/15/2007 | US20070034408 Method of creating a borehole in an earth formation |
| 02/15/2007 | US20070034379 Plug installation system for deep water subsea wells |
| 02/15/2007 | US20070034372 Internal release connector and method |
| 02/14/2007 | CN2869290Y Antiseize three-jaw casing roller |
| 02/14/2007 | CN2869289Y Expansion pipe expansion cone structure |
| 02/14/2007 | CN2869288Y Underground forced propeller |
| 02/13/2007 | US7174964 Wellhead with radially expanded tubulars |
| 02/08/2007 | US20070029094 Heavy load carry slips and method |
| 02/08/2007 | US20070029080 Deformable member |
| 02/07/2007 | CN2866802Y Apparatus for preventing recycle liquid from falling for grinding and milling well |
| 02/07/2007 | CN2866799Y Oilwell casing reconditioning tool |
| 02/07/2007 | CN1910337A Control system communication and lock open tool and method for locking open a safety valve and communicating with surface |
| 02/06/2007 | US7172038 Well system |
| 02/06/2007 | US7172027 Expanding tubing |
| 02/01/2007 | US20070023189 Tubing hanger connection |
| 01/31/2007 | EP1748150A2 Method of creating a borehole in an earth formation |
| 01/31/2007 | CN1297626C Anticorrosion preservative agent special for sleeve for oilfield well drilling and well cementing |
| 01/30/2007 | US7168499 Radial expansion of tubular members |
| 01/30/2007 | US7168497 Downhole sealing |
| 01/30/2007 | CA2414432C Technique for expanding tubular structures |
| 01/25/2007 | US20070017680 Conductor casing installation by anchor handling/tug/supply vessel |
| 01/25/2007 | US20070017572 Pipeline |
| 01/24/2007 | CN1296570C Method and apparatus for cutting underwater structures |
| 01/23/2007 | US7165614 Reactive stimulation of oil and gas wells |
| 01/18/2007 | US20070012456 Wellbore Casing |
| 01/18/2007 | US20070012451 Piggable flowline-riser system |
| 01/18/2007 | US20070012449 Coiled tubing wireline cutter |
| 01/18/2007 | US20070012443 Compliant cone for solid liner expansion |
| 01/18/2007 | US20070012434 Safety valve apparatus for downhole pressure transmission systems |
| 01/16/2007 | US7163062 Riser |
| 01/16/2007 | US7163061 Apparatus and method for supporting structures on offshore platforms |
| 01/11/2007 | WO2006044763A3 Subsea junction plate assembly running tool and method of installation |