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    RELEASING AND RECOVERING TOOL
    2.
    发明申请
    RELEASING AND RECOVERING TOOL 审中-公开
    释放和恢复工具

    公开(公告)号：WO2008024791A3

    公开(公告)日：2008-04-17

    申请号：PCT/US2007076442

    申请日：2007-08-21

    Applicant: WEATHERFORD LAMB ,  LAIRD MARY L ,  FISHER JERRY W ,  REDLINGER THOMAS M ,  WILSON CARL J

    Inventor： FISHER JERRY W ,  REDLINGER THOMAS M ,  WILSON CARL J

    IPC: E21B17/06

    CPC classification number: E21B23/14 ,  E21B17/023 ,  E21B17/06 ,  E21B47/00

    Abstract: Apparatus and methods for selectively releasing a first wellbore component (30) to a second wellbore component (40) using a disconnect device. In one embodiment, the method includes coupling a disconnect device (20) to a workstring (40) and a downhole tool (30); performing a downhole operation using the downhole tool, and selectively releasing an upper portion of the disconnect device from a lower portion of the disconnect device, thereby releasing the downhole tool from the workstring. The method may also include reconnecting the upper portion of the disconnect device to the lower portion of the disconnect device. In one embodiment, the disconnect device is capable of transferring torque to the wellbore component.

    Abstract translation: 用于使用断开装置将第一井筒部件（30）选择性地释放到第二井筒部件（40）的装置和方法。 在一个实施例中，该方法包括将断开装置（20）连接到工作绳（40）和井下工具（30）; 使用所述井下工具进行井下操作，并且从所述断开装置的下部选择性地释放所述断开装置的上部，从而将所述井下工具从所述工作绳排出。 该方法还可以包括将断开装置的上部重新连接到断开装置的下部。 在一个实施例中，断开装置能够将扭矩传递到井筒部件。

    METHODS AND APPARATUS FOR SUBSEA WELL INTERVENTION AND SUBSEA WELLHEAD RETRIEVAL
    4.
    发明专利
    METHODS AND APPARATUS FOR SUBSEA WELL INTERVENTION AND SUBSEA WELLHEAD RETRIEVAL 未知

    公开(公告)号：CA2707994C

    公开(公告)日：2012-10-30

    申请号：CA2707994

    申请日：2010-06-18

    Applicant: WEATHERFORD LAMB

    Inventor： REDLINGER THOMAS M ,  ANTOINE ANDREW ,  LE MY ,  SEGURA RICHARD J

    IPC: E21B33/035

    Abstract: The present invention generally relates to methods and apparatus for subsea well intervention operations, including retrieval of a wellhead from a subsea well. In one aspect, a method of performing an operation in a subsea well is provided. The method comprising the step of positioning a tool proximate a subsea wellhead. The tool has at least one grip member and the tool is attached to a downhole assembly. The method also comprising the step of clamping the tool to the subsea wellhead by moving the at least one grip member into engagement with a profile on the subsea wellhead. The method further comprising the step of applying an upward force to the tool thereby enhancing the grip between the grip member and the profile on the subsea wellhead. Additionally, the method comprising the step of performing the operation in the subsea well by utilizing the downhole assembly. In another aspect, an apparatus for use in a subsea well is provided. In a further aspect, a method of cutting a casing string in a subsea well is provided.

    METHOD FOR JARRING WITH A DOWNHOLE PULLING TOOL
    5.
    发明专利
    METHOD FOR JARRING WITH A DOWNHOLE PULLING TOOL 未知

    公开(公告)号：CA2650364C

    公开(公告)日：2011-06-21

    申请号：CA2650364

    申请日：2009-01-22

    Applicant: WEATHERFORD LAMB

    Inventor： REDLINGER THOMAS M ,  VREELAND CHRISTOPHER M

    IPC: E21B31/107

    Abstract: The present invention generally relates to an apparatus and method of jarring with an overpull generator. In one aspect, a method of dislodging an object stuck in a wellbore is provided. The method includes the step of running an assembly into the wellbore on a conveyance member and attaching the assembly to the object, wherein the assembly comprises an overpull generator and a delay force release device. The method also includes the step of generating an overpull force in the wellbore by selectively activating the overpull generator. Additionally, the method includes the step of applying an impact force to the object by activating the delay force release device and releasing the generated overpull force, thereby dislodging the object stuck in the wellbore. In a further aspect, an assembly for dislodging an object stuck in a wellbore is provided. In yet a further aspect, an overpull generator for use in generating an overpull force in a wellbore is provided.

    Whipstock assembly and method of manufacture
    7.
    发明专利
    Whipstock assembly and method of manufacture 未知

    公开(公告)号：GB2403494A

    公开(公告)日：2005-01-05

    申请号：GB0422626

    申请日：2003-04-14

    Applicant: WEATHERFORD LAMB

    Inventor： CARTER THURMAN B ,  REDLINGER THOMAS M ,  BRUNNERT DAVID J

    IPC: E21B7/06 ,  E21B7/08 ,  E21B17/10

    Abstract: The present invention discloses a whipstock assembly (100) for use in forming a lateral borehole from a parent wellbore. The whipstock assembly comprises a body (122) and a deflection member 120) above the body. The deflection member includes a concave portion (111) for deflecting a milling bit during a milling operation. Disposed on a perforation plate (110) portion of the concave portion is a raised surface feature (116). The raised surface supports a milling bit above the perforation plate portion during a milling operation. This, in turn, substantially prevents frictional contact between the milling bits and the perforation plate portion during a milling operation. The present invention also provides a novel method for manufacturing a whipstock in which a cavity portion is formed behind the perforation plate by milling out the backside of the deflection member and then joining a second back cover member to the whipstock body to complete the assembly.

    EXTENDABLE CUTTING TOOLS FOR USE IN A WELLBORE
    8.
    发明专利
    EXTENDABLE CUTTING TOOLS FOR USE IN A WELLBORE 未知

    公开(公告)号：CA2844909C

    公开(公告)日：2016-07-12

    申请号：CA2844909

    申请日：2009-11-10

    Applicant: WEATHERFORD/LAMB INC

    Inventor： XU WEI JAKE ,  ODELL ALBERT C II ,  HARRALL SIMON J ,  REDLINGER THOMAS M ,  VREELAND CHRISTOPHER M ,  ANTOINE ANDREW ,  BRUNNERT DAVID J ,  LAIRD TOMMY ,  MOODY MICHAEL ,  TILTON FREDERICK T

    IPC: E21B10/32

    Abstract: Embodiments of the present invention generally relate to extendable cutting tools for use in a well bore. In one embodiment, a tool for use in a wellbore includes a tubular body having a bore therethrough, an opening through a wall thereof, and a connector at each longitudinal end thereof; and an arm. The arm is pivotally connected to a first piston and rotationally coupled to the body, is disposed in the opening in a retracted position, and is movable to an extended position where an outer surface of the arm extends outward past an outer surface of the body. The tool further includes the first piston. The first piston is disposed in the body bore, has a bore therethrough, and is operable to move the arm from the retracted position to the extended position in response to fluid pressure in the piston bore exceeding fluid pressure in the opening. The tool further includes a lock operable to retain the first piston in the retracted position; and a second piston operably coupled to the lock.

    METHODS AND APPARATUS FOR SUBSEA WELL INTERVENTION AND SUBSEA WELLHEAD RETRIEVAL
    10.
    发明专利
    METHODS AND APPARATUS FOR SUBSEA WELL INTERVENTION AND SUBSEA WELLHEAD RETRIEVAL 未知

    公开(公告)号：CA2785878C

    公开(公告)日：2013-11-05

    申请号：CA2785878

    申请日：2010-06-18

    Applicant: WEATHERFORD LAMB

    Inventor： REDLINGER THOMAS M ,  ANTOINE ANDREW ,  LE MY ,  SEGURA RICHARD J

    IPC: E21B33/035

    Abstract: The present invention generally relates to methods and apparatus for subsea well intervention operations, including retrieval of a wellhead from a subsea well. In one aspect, a method of performing an operation in a subsea well is provided. The method comprising the step of positioning a tool proximate a subsea wellhead. The tool has at least one grip member and the tool is attached to a downhole assembly. The method also comprising the step of clamping the tool to the subsea wellhead by moving the at least one grip member into engagement with a profile on the subsea wellhead. The method further comprising the step of applying an upward force to the tool thereby enhancing the grip between the grip member and the profile on the subsea wellhead. Additionally, the method comprising the step of performing the operation in the subsea well by utilizing the downhole assembly. In another aspect, an apparatus for use in a subsea well is provided. In a further aspect, a method of cutting a casing string in a subsea well is provided.

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