| 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) |
|---|
| 04/29/2004 | WO2004035983A2 Open water running tool and lockdown sleeve assembly |
| 04/29/2004 | US20040079534 Expandable tubulars |
| 04/29/2004 | US20040079528 Tubing anchor |
| 04/28/2004 | EP1412616A1 Dual sensor freepoint tool |
| 04/28/2004 | EP1412611A2 Umbilical termination assembly and launching system related application information |
| 04/28/2004 | EP1222357B1 One trip milling system |
| 04/27/2004 | US6725927 Method and system for avoiding damage to behind-casing structures |
| 04/27/2004 | US6725919 Forming a wellbore casing while simultaneously drilling a wellbore |
| 04/22/2004 | US20040074640 Method and apparatus |
| 04/22/2004 | US20040074635 Central circulation completion system |
| 04/20/2004 | US6722435 Window forming by flame cutting |
| 04/15/2004 | WO2004031535A1 Lock open tool for downhole safety valve |
| 04/15/2004 | US20040069496 Wellbore isolation apparatus, and method for tripping pipe during underbalanced drilling |
| 04/13/2004 | US6719045 Whipstock assembly |
| 04/08/2004 | WO2003046329A3 A wellhead assembly for communicating with the casing hanger annulus |
| 04/08/2004 | US20040067110 Active hold down system for jack-up drilling unit |
| 04/08/2004 | US20040065445 Expanding tubing |
| 04/08/2004 | US20040065442 Lock open and control system access apparatus for a downhole safety valve |
| 04/06/2004 | CA2210561C Apparatus for completing a subterranean well and associated methods of using same |
| 04/01/2004 | WO2004027205A2 Mono diameter wellbore casing |
| 04/01/2004 | WO2004027204A2 Cutter for wellbore casing |
| 04/01/2004 | WO2004027202A2 Inner riser adjustable hanger and seal assembly |
| 04/01/2004 | US20040060710 Internal pressure indicator and locking mechanism for a downhole tool |
| 04/01/2004 | CA2499030A1 Mono diameter wellbore casing |
| 03/31/2004 | EP1179115B1 In-tubing wellbore sidetracking operations |
| 03/30/2004 | US6712154 Isolation of subterranean zones |
| 03/30/2004 | US6712143 Borehole conduit cutting apparatus and process |
| 03/30/2004 | US6712142 Apparatus and methods for expanding tubulars in a wellbore |
| 03/30/2004 | CA2336551C Borehole conduit cutting apparatus |
| 03/30/2004 | CA2149230C Anti-rotation devices for use with well tools |
| 03/25/2004 | WO2004025160A2 Fluid system component with sacrificial element |
| 03/25/2004 | WO2004025068A2 System and method for well workover with horizontal tree |
| 03/24/2004 | EP1399644A1 Method for preparing wellbore casing for installation |
| 03/24/2004 | EP1399641A1 Pipe centralizer and method of attachment |
| 03/24/2004 | EP1047860B1 Apparatus and method for milling through a whipstock in a wellbore |
| 03/23/2004 | US6708769 Apparatus and methods for forming a lateral wellbore |
| 03/23/2004 | US6708766 Wellhead assembly for communicating with the casing hanger annulus |
| 03/23/2004 | US6708762 Methods and apparatus for forming a lateral wellbore |
| 03/17/2004 | EP0698175B1 Well plugging apparatus and method |
| 03/16/2004 | CA2212923C Method for sealing the junctions in multilateral wells |
| 03/16/2004 | CA2210562C Apparatus for completing a subterranean well and associated methods of using same |
| 03/11/2004 | US20040045741 Borehole stabilization while drilling |
| 03/11/2004 | US20040045714 Downhole milling machine and method of use |
| 03/11/2004 | US20040045616 Tubular liner for wellbore casing |
| 03/10/2004 | EP1395732A1 In-situ casting of well equipment |
| 03/09/2004 | US6702031 Anchoring device removal method and apparatus |
| 03/09/2004 | US6702030 Procedures and equipment for profiling and jointing of pipes |
| 03/09/2004 | US6702029 Tubing anchor |
| 03/09/2004 | US6702009 Select-fire pressure relief subassembly for a chemical cutter |
| 03/04/2004 | WO2004018823A2 Interposed joint sealing layer method of forming a wellbore casing |
| 03/04/2004 | US20040041310 Continuous hot rod |
| 03/03/2004 | EP0900320B1 System and method for placement and retrieval of a subsurface diverting tool used in drilling and completing wells |
| 03/03/2004 | CN1478822A Special heavy mastic for sea bottom petroleum pipe lline |
| 03/02/2004 | US6698976 Grouting pipe equipment and method of grouting using the same for an underground water well |
| 03/02/2004 | CA2210563C Apparatus for completing a subterranean well and associated methods of using same |
| 02/26/2004 | WO2004016901A1 Well abandonment apparatus |
| 02/26/2004 | WO2004001182A3 Internal support apparatus for downhole tubular structures |
| 02/24/2004 | US6695056 System for forming a window and drilling a sidetrack wellbore |
| 02/24/2004 | CA2223517C Mill guide and anchor assembly for subterranean well casings |
| 02/19/2004 | WO2003008755A8 Wear resistant tubular connection |
| 02/19/2004 | WO2003004820B1 Liner hanger |
| 02/19/2004 | US20040033906 Liner hanger with slip joint sealing members and method of use |
| 02/19/2004 | US20040031613 Method of cleaning and refinishing tubulars |
| 02/17/2004 | US6693553 Reservoir management system and method |
| 02/17/2004 | US6691777 Self-lubricating swage |
| 02/17/2004 | CA2182535C One-trip window-milling system |
| 02/17/2004 | CA2160676C Well plugging apparatus and method |
| 02/12/2004 | WO2004013462A1 An expandable metal liner for downhole components |
| 02/12/2004 | WO2003069115A3 Method of repair of collapsed or damaged tubulars downhole |
| 02/12/2004 | US20040026087 Subsurface safety valve and method for communicating hydraulic fluid therethrough |
| 02/10/2004 | US6688400 Downhole sealing |
| 02/05/2004 | WO2004011768A1 External line cutting apparatus |
| 02/05/2004 | US20040020659 Expandable metal liner for downhole components |
| 02/05/2004 | US20040020648 Well reference apparatus and method |
| 02/03/2004 | US6684965 Method and apparatus for operations in underground subsea oil and gas wells |
| 01/29/2004 | US20040016544 Downhole tubular patch, tubular expander and method |
| 01/27/2004 | US6681858 Packer retriever |
| 01/22/2004 | WO2004007896A2 Tubular slip device and method |
| 01/22/2004 | US20040011600 Tubular slip device and method |
| 01/22/2004 | US20040011528 Combined milling and scraping tool |
| 01/20/2004 | US6679335 Method for preparing casing for use in a wellbore |
| 01/20/2004 | US6679334 Use of helically wound tubular structure in the downhole environment |
| 01/20/2004 | US6679328 Reverse section milling method and apparatus |
| 01/15/2004 | WO2004005669A1 Corrugated downhole tubulars |
| 01/15/2004 | WO2004005663A2 Tapered ramp positive lock latch mechanism |
| 01/15/2004 | WO2004005660A2 Active hold down system for jack-up drilling unit |
| 01/15/2004 | US20040007362 Tapered ramp positve lock latch mechanism |
| 01/14/2004 | EP1379755A1 Wireline retrievable safety valve with radial cutting device |
| 01/13/2004 | US6675901 Use of helically wound tubular structure in the downhole environment |
| 01/13/2004 | CA2210573C Apparatus for completing a subterranean well and associated methods of using same |
| 01/08/2004 | US20040003920 High torque and high capacity rotatable center core with ram body assemblies |
| 01/07/2004 | EP0916014B1 Apparatus and method for milling a hole in casing |
| 12/31/2003 | WO2004001182A2 Internal support apparatus for downhole tubular structures |
| 12/30/2003 | US6668945 Method and apparatus for milling a window in a well casing or liner |
| 12/30/2003 | US6668930 Method for installing an expandable coiled tubing patch |
| 12/30/2003 | CA2151706C Method and apparatus for setting a whipstock |
| 12/25/2003 | US20030234111 Internal support apparatus for downhole tubular structures and method of use |
| 12/25/2003 | US20030234104 Apparatus and methods for establishing secondary hydraulics in a downhole tool |
| 12/24/2003 | WO2003106130A2 Collapsible expansion cone |
| 12/24/2003 | WO2003004820A3 Liner hanger |