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    METHOD FOR JARRING WITH A DOWNHOLE PULLING TOOL
    2.
    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.

    EXTENDABLE CUTTING TOOLS FOR USE IN A WELLBORE
    4.
    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.

    EXTENDABLE CUTTING TOOLS FOR USE IN A WELLBORE
    6.
    发明专利
    EXTENDABLE CUTTING TOOLS FOR USE IN A WELLBORE 未知

    公开(公告)号：CA2742767A1

    公开(公告)日：2010-05-14

    申请号：CA2742767

    申请日：2009-11-10

    Applicant: WEATHERFORD LAMB

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

    IPC: E21B10/32

    Abstract: Embodiments of the present invention generally relate to extendable cutting tools for use in a wellbore. 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.

    Extendable cutting tools for use in a wellbore
    9.
    发明专利
    Extendable cutting tools for use in a wellbore 未知

    公开(公告)号：AU2013203056A1

    公开(公告)日：2013-05-02

    申请号：AU2013203056

    申请日：2013-04-09

    Applicant: WEATHERFORD LAMB

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

    IPC: E21B10/32

    Abstract: EXTENDABLE CUTTING TOOLS FOR USE IN A WELLBORE A tool (100) for use in a wellbore, comprising a first tubular body (5) having a bore therethrough and an opening (5o) through a wall thereof; a first arm (50a,b): pivotally connected to the body (5) or a first piston (10), disposed in the opening (5o) in a retracted position, and movable to an extended position where an outer surface of the first arm (50a,b) extends outward past an outer surface of the first tubular body (5); the first piston (10): disposed in the body (5) bore, having a bore therethrough, and operable to move the first arm (50a,b) from the retracted position to the extended position in response to fluid pressure in the first piston (10) bore exceeding fluid pressure in the opening (5o); a lock (230) operable to retain the first piston (10) in the retracted position; and a controller (325) operable to release the lock (230) in response to receiving a first instruction signal.

    Method for jarring with a downhole pulling tool
    10.
    发明专利
    Method for jarring with a downhole pulling tool 未知

    公开(公告)号：AU2009200329B2

    公开(公告)日：2011-11-24

    申请号：AU2009200329

    申请日：2009-01-29

    Applicant: WEATHERFORD LAMB

    Inventor： VREELAND CHRISTOPHER M ,  REDLINGER THOMAS 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. 2$ /7 7 o >7 2$ >7/> K 2$ >7 2$ >7 >7 2$7 ~K Cl oK/S 0 /7 7 4(1

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