| 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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| 06/01/2005 | CN2703117Y Casing segment milling tool |
| 05/31/2005 | US6899181 Methods and apparatus for expanding a tubular within another tubular |
| 05/26/2005 | WO2005047644A1 Directional cased hole side track method applying rotary closed loop system and casing mill |
| 05/25/2005 | EP1533467A2 Multilateral well drilling and completion method and apparatus |
| 05/24/2005 | US6896063 Methods of using downhole polymer plug |
| 05/24/2005 | US6896049 Deformable member |
| 05/24/2005 | CA2370172C Ribbed sealing element and method of use |
| 05/24/2005 | CA2369838C Anchoring device removal method and apparatus |
| 05/24/2005 | CA2361874C Method and apparatus for milling openings in downhole structures |
| 05/24/2005 | CA2262106C Apparatus and method for milling a hole in casing |
| 05/24/2005 | CA2247812C Method of removing wellhead assemblies |
| 05/19/2005 | WO2005045184A1 Control system communication and lock open tool and method for locking open a safety valve and communicating with surface |
| 05/19/2005 | US20050103528 Horizontal directional drilling in wells |
| 05/19/2005 | US20050103501 Disengageable downhole tool |
| 05/19/2005 | US20050103491 Activity data capture system for a well service vehicle |
| 05/19/2005 | CA2636681A1 Selective collet |
| 05/17/2005 | US6892819 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/12/2005 | WO2005042905A2 A piggable flowline-riser system |
| 05/12/2005 | US20050098350 Three dimensional steering system and method for steering bit to drill borehole |
| 05/12/2005 | US20050098325 Control system communication and lock open tool and method for locking open a safety valve and communicating with surface |
| 05/12/2005 | US20050098323 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/11/2005 | EP1529151A1 Well abandonment apparatus |
| 05/10/2005 | US6889781 Horizontal directional drilling in wells |
| 05/06/2005 | WO2004081333A3 A method and apparatus for a downhole excavation in a wellbore |
| 05/04/2005 | EP1528149A1 Low consistency oxygen delignification process |
| 05/04/2005 | EP1527254A1 An expandable metal liner for downhole components |
| 04/28/2005 | US20050087315 Low consistency oxygen delignification process |
| 04/28/2005 | CA2484557A1 Low consistency oxygen delignification process |
| 04/27/2005 | CN2695613Y Automatic vibration damping and noise reduction device used in oil tube repairing |
| 04/27/2005 | CN2695612Y Rigid fixator for stretching oil tube column at rated hydraulic pressure |
| 04/26/2005 | CA2355224C Self-lubricating swage |
| 04/26/2005 | CA2187972C Two trip window cutting system |
| 04/21/2005 | US20050082063 Methods and apparatus for severing nested strings of tubulars |
| 04/21/2005 | US20050081358 Radial expansion of tubular members |
| 04/19/2005 | US6880641 Subsurface safety valve and method for communicating hydraulic fluid therethrough |
| 04/19/2005 | US6880631 Whipstock casing milling system |
| 04/14/2005 | WO2005033907A2 Activity data capture system for a well service vehicle |
| 04/14/2005 | WO2004005660A3 Active hold down system for jack-up drilling unit |
| 04/14/2005 | US20050077051 Radial expansion of tubular members |
| 04/14/2005 | US20050077046 Apparatus and methods for separating and joining tubulars in a wellbore |
| 04/12/2005 | CA2357754C Lining removal method, system and components thereof |
| 04/12/2005 | CA2164442C Apparatus for use in a wellbore |
| 04/12/2005 | CA2120485C Method and apparatus for sealing the juncture between a vertical and horizontal well |
| 04/07/2005 | US20050072568 Thermal generator for downhole tools |
| 04/06/2005 | EP1520084A1 Corrugated downhole tubulars |
| 03/31/2005 | WO2004074622A3 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 03/29/2005 | CA2281976C Combination mill and drill bit |
| 03/24/2005 | WO2005026495A1 Method for producing perforation slots in a capital string and formation drilling method |
| 03/24/2005 | WO2004083593A3 Radial expansion and milling of expandable tubulars |
| 03/24/2005 | WO2004076798A3 Apparatus for radially expanding and plastically deforming a tubular member |
| 03/23/2005 | EP1517001A2 Downhole expander device |
| 03/22/2005 | US6868909 Drillable junction joint and method of use |
| 03/22/2005 | US6868901 Tubular cutting tool |
| 03/22/2005 | CA2229800C Apparatus and method for performing imaging and downhole operations at work site in wellbores |
| 03/17/2005 | WO2004035983A3 Open water running tool and lockdown sleeve assembly |
| 03/17/2005 | US20050056434 Collapsible expansion cone |
| 03/17/2005 | US20050056433 Mono diameter wellbore casing |
| 03/17/2005 | US20050056430 Subsurface safety valve having a communication tool accessible non annular hydraulic chamber |
| 03/17/2005 | US20050056414 Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve |
| 03/16/2005 | CN1594631A Expanding metal material and bulged tube device for petroleum oil well |
| 03/10/2005 | WO2005021921A2 A method of radially expanding and plastically deforming tubular members |
| 03/10/2005 | CA2536623A1 A method of radially expanding and plastically deforming tubular members |
| 03/09/2005 | EP1511912A2 Downhole tool deployment safety system and methods |
| 03/08/2005 | US6863137 Well system |
| 03/03/2005 | WO2005019597A1 Window mill and drill bit |
| 03/03/2005 | US20050045342 Apparatus and method for completing a wellbore |
| 03/03/2005 | US20050045341 Radial expansion of tubular members |
| 03/03/2005 | US20050045340 Method of forming a bore |
| 03/03/2005 | US20050045324 Radial expansion of tubular members |
| 03/02/2005 | EP1510651A2 Method and apparatus for expanding a liner patch |
| 03/02/2005 | EP1509673A1 A device for a hydraulic cutting tool |
| 03/02/2005 | EP1095204A4 Borehole conduit cutting apparatus |
| 03/01/2005 | CA2468602A1 A method of forming a bore |
| 02/24/2005 | WO2005016581A2 Casing cutter |
| 02/24/2005 | US20050042036 Device and method for trenchless replacement of underground pipe |
| 02/24/2005 | US20050039928 Radial expansion of tubular members |
| 02/24/2005 | US20050039912 Conformable Apparatus in a Drill String |
| 02/24/2005 | US20050039905 Window mill and drill bit |
| 02/24/2005 | CA2535817A1 Expandable tubular |
| 02/23/2005 | CN1585851A Non-seize material of drill stem clamp system |
| 02/16/2005 | CN2679348Y Integrated tool for milling window in casing for side track drilling |
| 02/15/2005 | CA2294552C Downhole window milling apparatus and method for using the same |
| 02/15/2005 | CA2223669C Retrievable milling guide anchor apparatus and associated methods |
| 02/10/2005 | WO2005012689A1 System and method for placing a braided, tubular sleeve in a well bore |
| 02/10/2005 | US20050028988 Radial expansion of tubular members |
| 02/10/2005 | US20050028982 Specialised petroleum services group limited |
| 02/10/2005 | US20050028339 Hydraulic well casing repair system and method therefor |
| 02/10/2005 | DE202004005605U1 Einrichtung zur Schaffung eines unterirdischen Zugangs zu einer Streckenrohrleitung und Verwendung dieser Einrichtung Means for providing access to a range of an underground pipeline, and use of these means |
| 02/09/2005 | EP1505251A2 Drilling method |
| 02/08/2005 | US6851491 Internal pressure indicator and locking mechanism for a downhole tool |
| 02/08/2005 | US6851476 Dual sensor freepoint tool |
| 02/08/2005 | US6851475 Apparatus and methods for separating and joining tubulars in a wellbore |
| 02/08/2005 | CA2314061C Reservoir management system and method |
| 02/03/2005 | US20050023002 System and methods for placing a braided tubular sleeve in a well bore |
| 02/03/2005 | US20050022995 Apparatus and methods of cleaning and refinishing tubulars |
| 02/02/2005 | EP1502001A2 Packer retriever |
| 01/26/2005 | CN2674076Y Tensile means for tubing |
| 01/20/2005 | WO2004092633A3 Spoolable composite coiled tubing connector |
| 01/20/2005 | US20050011650 Method and apparatus for expanding and separating tubulars in a wellbore |
| 01/20/2005 | US20050011643 Wear resistant tubular connection |