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.

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.