| 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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| 09/23/2004 | US20040182581 Expandable tubing and method |
| 09/23/2004 | US20040182569 Apparatus for expanding a tubular member |
| 09/21/2004 | US6793442 Device and method for trenchless replacement of underground pipe |
| 09/21/2004 | US6793019 Tapered ramp positive lock latch mechanism |
| 09/21/2004 | US6792866 Circular shaped charge |
| 09/21/2004 | CA2426336C Method for forming a window in a tubular and apparatus for use in said method |
| 09/16/2004 | WO2004018823B1 Interposed joint sealing layer method of forming a wellbore casing |
| 09/16/2004 | US20040177959 Expandanble tubing and method |
| 09/14/2004 | US6789627 Control line cutting tool and method |
| 09/10/2004 | WO2004076798A2 Apparatus for radially expanding and plastically deforming a tubular member |
| 09/10/2004 | WO2004025160A3 Fluid system component with sacrificial element |
| 09/09/2004 | US20040173355 Apparatus and methods for expanding tubulars in a wellbore |
| 09/08/2004 | EP1155215B1 Mills for wellbore operations |
| 09/08/2004 | CN2639515Y 套管整形器 Casing shaper |
| 09/08/2004 | CN2639514Y 套管整形器 Casing shaper |
| 09/07/2004 | US6786283 Methods and associated apparatus for drilling and completing a wellbore junction |
| 09/07/2004 | US6786282 Milling apparatus and method for a well |
| 09/02/2004 | WO2004074622A2 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 09/02/2004 | WO2004027202A3 Inner riser adjustable hanger and seal assembly |
| 09/02/2004 | US20040168829 Subsea controlled milling |
| 09/02/2004 | US20040168808 Monobore wellbore and method for completing same |
| 09/02/2004 | CA2614179A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 09/02/2004 | CA2613131A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 09/02/2004 | CA2613007A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 09/02/2004 | CA2516140A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 08/31/2004 | CA2287625C Method of patching downhole casing |
| 08/26/2004 | WO2004027204A3 Cutter for wellbore casing |
| 08/26/2004 | WO2003042487B1 Mono diameter wellbore casing |
| 08/24/2004 | CA2191410C Thru tubing bridge plug and method |
| 08/19/2004 | WO2003067018A3 Well system |
| 08/19/2004 | US20040159466 Apparatus and methods for forming a lateral wellbore |
| 08/19/2004 | US20040159445 Apparatus and method |
| 08/17/2004 | US6775894 Casing patching tool |
| 08/12/2004 | WO2004005663A3 Tapered ramp positive lock latch mechanism |
| 08/12/2004 | WO2003031760A3 Non-seize material attachment for a drill slip system |
| 08/12/2004 | US20040154809 Method and apparatus for operations in underground/subsea oil and gas wells |
| 08/10/2004 | US6772836 Expandable tubing and method |
| 08/05/2004 | WO2004027205A3 Mono diameter wellbore casing |
| 08/05/2004 | WO2004018823A3 Interposed joint sealing layer method of forming a wellbore casing |
| 08/05/2004 | WO2003104603A3 New and improved method and apparatus involving an integrated or otherwise combined exit guide and section mill for sidetracking or directional drilling from existing wellbores |
| 08/05/2004 | WO2003046424A3 High torque and high capacity rotatable center core and floatable sealed body assemblies with universals ram applications and method |
| 08/05/2004 | WO2003042489A3 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 08/05/2004 | US20040149454 Downhole sealing |
| 08/05/2004 | US20040149431 Method and apparatus for a monodiameter wellbore, monodiameter casing and monobore |
| 08/05/2004 | US20040149418 In-situ casting of well equipment |
| 08/04/2004 | EP1159510B1 Wellbore primary barrier and related systems |
| 08/03/2004 | CA2299176C Method of locating wellbore casing collars using dual-purpose magnet |
| 07/29/2004 | WO2004063525A1 A method and device for drilling into tubulars located within one another |
| 07/29/2004 | WO2004042185B1 Downhole cutting locator tool |
| 07/29/2004 | WO2004005660A8 Active hold down system for jack-up drilling unit |
| 07/27/2004 | US6766859 Wellbore liner system |
| 07/27/2004 | US6766854 Well-bore sensor apparatus and method |
| 07/22/2004 | US20040140102 Apparatus and method for orientating a downhole control tool |
| 07/22/2004 | US20040140092 Linear displacement measurement method and apparatus |
| 07/21/2004 | CN1514905A In-situ casting of well equipment |
| 07/20/2004 | US6763893 Downhole tubular patch, tubular expander and method |
| 07/20/2004 | US6763753 Hydraulic wireline cutter |
| 07/15/2004 | WO2003093624A3 Packer retriever |
| 07/14/2004 | EP0901559B1 Multicut window mill |
| 07/13/2004 | US6761574 Coiled tubing connector |
| 07/08/2004 | WO2003093623A3 Mono diameter wellbore casing |
| 07/08/2004 | US20040129420 Milling tool insert |
| 07/07/2004 | EP1248894A4 Method and apparatus for a combined exit guide and sectional mill for sidetracking |
| 07/06/2004 | US6758280 Non-seize material attachment for a drill slip system |
| 07/06/2004 | US6758278 Forming a wellbore casing while simultaneously drilling a wellbore |
| 07/06/2004 | US6758275 Method of cleaning and refinishing tubulars |
| 07/01/2004 | WO2003042487A3 Mono diameter wellbore casing |
| 07/01/2004 | US20040123988 Wellhead |
| 06/30/2004 | CN2622381Y Soe guiding type composit grinding/milling tool |
| 06/29/2004 | US6755248 One trip through tubing window milling apparatus and method |
| 06/24/2004 | US20040118574 Mono-diameter wellbore casing |
| 06/24/2004 | US20040118566 Fluid system component with sacrificial element |
| 06/23/2004 | EP1076758B1 A method for the formation of a plug in a petroleum well |
| 06/22/2004 | US6752215 Method and apparatus for expanding and separating tubulars in a wellbore |
| 06/17/2004 | WO2004007896A3 Tubular slip device and method |
| 06/17/2004 | US20040112609 Reinforced swelling elastomer seal element on expandable tubular |
| 06/17/2004 | US20040112587 Expandable downhole tool |
| 06/16/2004 | EP1428974A2 Expandable wellbore junction |
| 06/15/2004 | US6749026 Method of forming downhole tubular string connections |
| 06/10/2004 | WO2004025160A8 Fluid system component with sacrificial element |
| 06/08/2004 | US6745846 Expandable downhole tubing |
| 06/03/2004 | WO2004046499A1 Method of forming a window in a casing |
| 06/01/2004 | US6742606 Method and apparatus for drilling and lining a wellbore |
| 06/01/2004 | US6742595 Subsurface safety valve lock out and communication tool and method for use of the same |
| 06/01/2004 | US6742585 Sealing off openings through the wall of a well tubular |
| 05/27/2004 | WO2004044375A1 A method and apparatus for creating a cemented lateral junction system |
| 05/25/2004 | US6739392 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/25/2004 | CA2235865C High torque pressure sleeve for easily drillable casing exit ports |
| 05/21/2004 | WO2004042185A1 Downhole cutting locator tool |
| 05/20/2004 | US20040094312 Expander for expanding a tubular element |
| 05/13/2004 | WO2004040096A1 Composite tool insert |
| 05/13/2004 | WO2004040095A1 Tool insert |
| 05/13/2004 | US20040092404 Sleeve with premachined aperture; coverings with release agent; insertion sleeve in well bore |
| 05/13/2004 | US20040089480 Downhole motor locking assembly and method |
| 05/13/2004 | US20040089451 Emergency cutting apparatus and method |
| 05/13/2004 | US20040089450 Propellant-powered fluid jet cutting apparatus and methods of use |
| 05/13/2004 | US20040089443 One trip milling system |
| 05/06/2004 | WO2004038171A1 Method for releasing cables from an attached well tool and apparatus for exercising the method |
| 05/06/2004 | US20040084185 Cutting locator tool |
| 05/04/2004 | US6729406 Method and apparatus for performing cutting operations in a subterranean well |