| 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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| 01/20/2005 | US20050011641 Wellhead |
| 01/18/2005 | US6843332 Three dimensional steerable system and method for steering bit to drill borehole |
| 01/18/2005 | US6843314 Retrievable through-tubing whipstock apparatus having fluid-responsive pivotal anchoring members |
| 01/13/2005 | WO2005003511A1 Apparatus and method for sealing a wellbore |
| 01/13/2005 | US20050006102 Cutting Tool |
| 01/12/2005 | CN2670584Y Heat pipe cutter |
| 01/12/2005 | CN1564903A Contractable and expandable tubular wellbore system |
| 01/12/2005 | CN1563662A Set and method for repariring oil well casing by using iron based shape memory alloy |
| 01/11/2005 | US6840320 Method and apparatus for forming an optimized window |
| 01/06/2005 | WO2005001238A1 Device for arranging a shut-off valve in a well |
| 01/06/2005 | WO2004025068A3 System and method for well workover with horizontal tree |
| 01/06/2005 | US20050000697 Formed tubulars |
| 01/06/2005 | US20050000686 Contractable and expandable tubular wellbore system |
| 01/05/2005 | CN2668833Y Rolling-ball shaper |
| 01/04/2005 | CA2232940C Apparatus and method for milling a well casing |
| 12/30/2004 | US20040262014 Mono-diameter wellbore casing |
| 12/29/2004 | EP1491718A2 A Stroke Indicator and a Tubular Patch |
| 12/29/2004 | EP1491714A2 Multilateral well drilling and completion method and appratus |
| 12/29/2004 | EP1210501B1 Expandable downhole tubing |
| 12/29/2004 | CN2667146Y Continuous casing expander for oil well reconditioning service |
| 12/29/2004 | CN2667145Y Efficient grinding and milling underwell tool |
| 12/28/2004 | US6834725 Reinforced swelling elastomer seal element on expandable tubular |
| 12/28/2004 | CA2443311C Expandable radially reduced tubular member |
| 12/28/2004 | CA2234689C Mill for wellbore milling operations |
| 12/23/2004 | WO2004092526A3 Downhole polymer plug and liner and methods employing same |
| 12/22/2004 | EP1276955B1 Central circulation completion system |
| 12/21/2004 | CA2208906C Apparatus for completing a subterranean well and associated methods of using same |
| 12/16/2004 | WO2004027202B1 Inner riser adjustable hanger and seal assembly |
| 12/16/2004 | WO2003106130B1 Collapsible expansion cone |
| 12/16/2004 | WO2003093623B1 Mono diameter wellbore casing |
| 12/16/2004 | DE10323626A1 Tool for extracting and destroying brittle underground pipe has a pulling element to remove the pipe by preset amounts and with two servo grips to hold and crush the exposed sections |
| 12/14/2004 | CA2249168C Downhole pipe expansion apparatus and method |
| 12/09/2004 | US20040244449 Method and apparatus to reduce slot width in tubular members |
| 12/08/2004 | EP1141517B1 Drilling method |
| 12/07/2004 | US6827145 Methods and apparatus for severing nested strings of tubulars |
| 12/02/2004 | WO2004104369A1 Slip energized by longitudinal shrinkage |
| 12/02/2004 | US20040238175 Open water running tool and lockdown sleeve assembly |
| 12/02/2004 | DE10297474T5 Verfahren und Vorrichtung zum Ausfräsen eines Abschnitts in Gegenrichtung Method and apparatus for cutting out a portion in the opposite direction |
| 11/30/2004 | US6823937 Wellhead |
| 11/30/2004 | CA2357820C Hydraulic wireline cutter |
| 11/25/2004 | US20040231855 Liner hanger |
| 11/25/2004 | US20040231854 Casing wear band and method of attachment |
| 11/25/2004 | US20040231838 Slip energized by longitudinal shrinkage |
| 11/24/2004 | EP1478824A2 Well system |
| 11/24/2004 | EP0852652B1 Method for isolating multi-lateral well completions while maintaining selective drainhole re-entry access |
| 11/18/2004 | US20040226723 Procedures and equipment for profiling and jointing of pipes |
| 11/17/2004 | CN2656616Y High pressure abrasive jet flow seam cutting equipment in oil well |
| 11/16/2004 | CA2236570C Apparatus and method for forming a window or an outline thereof in the casing of a cased wellbore |
| 11/16/2004 | CA2181562C Milling tool |
| 11/11/2004 | WO2004097168A1 Method of creating a borehole in an earth formation |
| 11/11/2004 | US20040221993 Method for removing a tool from a well |
| 11/10/2004 | EP1474589A1 Casing reaming assembly |
| 11/10/2004 | CN1544795A Pyrotechnic composition for thermal pipe cutter and process for making same |
| 11/09/2004 | US6814143 Downhole tubular patch, tubular expander and method |
| 11/09/2004 | CA2272680C Expandable wellbore junction |
| 11/09/2004 | CA2233322C System for cutting materials in wellbores |
| 11/09/2004 | CA2229091C Methods of completing a subterranean well and associated apparatus |
| 11/04/2004 | US20040216925 Method and apparatus for drilling and lining a wellbore |
| 11/04/2004 | US20040216878 Method and apparatus for drilling and lining a wellbore |
| 11/03/2004 | EP1472433A2 Non-seize material attachment for a drill slip system |
| 11/02/2004 | CA2302926C One-trip casing cutting and removal apparatus |
| 10/28/2004 | WO2004092633A2 Spoolable composite coiled tubing connector |
| 10/28/2004 | WO2004092528A2 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/28/2004 | WO2004092527A2 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/28/2004 | WO2004092526A2 Downhole polymer plug and liner and methods employing same |
| 10/28/2004 | CA2523779A1 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/28/2004 | CA2523654A1 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/27/2004 | CN2651422Y Unitary bushing type window opening tool |
| 10/27/2004 | CN2651421Y Tail pipe prestressed well completion device |
| 10/21/2004 | WO2004089608A2 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/21/2004 | US20040206509 Casing wear band and method of attachment |
| 10/21/2004 | US20040206451 High-speed chemical drill |
| 10/21/2004 | US20040206265 Shaped charge tubing cutter |
| 10/21/2004 | CA2523500A1 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/19/2004 | US6805197 Hydraulic wireline cutter |
| 10/19/2004 | US6805196 Expander |
| 10/19/2004 | US6805056 Method and apparatus for removing abandoned tubular members |
| 10/19/2004 | CA2137560C Method of creating a wellbore in an underground formation |
| 10/14/2004 | WO2004088088A1 Underreamer |
| 10/14/2004 | WO2004027204B1 Cutter for wellbore casing |
| 10/14/2004 | US20040200343 Explosive pipe severing tool |
| 10/13/2004 | EP1467059A2 Method and apparatus for completing wells with lateral branches |
| 10/07/2004 | WO2004085790A2 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/07/2004 | US20040195006 Under-reamer tool |
| 10/07/2004 | US20040194972 Tubular expansion fluid production assembly and method |
| 10/07/2004 | US20040194962 System for retrieving a tubular element from a well |
| 10/07/2004 | US20040194959 Downhole polymer plug and liner and methods employing same |
| 10/06/2004 | EP1169541B1 Method of selective plastic expansion of sections of a tubing |
| 10/05/2004 | US6799923 Trenchless water pipe replacement device and method |
| 10/05/2004 | US6799637 Expandable tubing and method |
| 10/05/2004 | US6799632 Expandable metal liner for downhole components |
| 10/05/2004 | CA2167947C Downhole milling tool |
| 09/30/2004 | WO2004083593A2 Radial expansion and milling of expandable tubulars |
| 09/30/2004 | US20040188099 Method of creating a casing in a borehole |
| 09/30/2004 | US20040188097 Non-seize material attachment for a drill slip system |
| 09/29/2004 | EP1165930B1 Whipstock casing milling system |
| 09/23/2004 | WO2004081333A2 A method and apparatus for a downhole excavation in a wellbore |
| 09/23/2004 | WO2004027205B1 Mono diameter wellbore casing |
| 09/23/2004 | WO2003106130A3 Collapsible expansion cone |
| 09/23/2004 | US20040182611 Heavy load carry slips and method |