公开(公告)号：CA2811118C

公开(公告)日：2017-01-24

申请号：CA2811118

申请日：2011-09-20

Applicant: WEATHERFORD/LAMB INC

Inventor： NOSKE JOE ,  SMITH RODDIE R ,  SMITH PAUL L ,  BAILEY THOMAS F ,  MCDOWELL CHRISTOPHER L ,  TILTON FREDERICK T

IPC: E21B34/06 ,  E21B34/00

Abstract: A method of drilling a wellbore includes drilling the wellbore through a formation by injecting drilling fluid through a drill string and rotating a drill bit. The drill string includes a shifting tool, a receiver in communication with the shifting tool, and the drill bit. The method further includes retrieving the drill string from the wellbore through a casing string until the shifting tool reaches an actuator. The casing string includes an isolation valve in an open position and the actuator. The method further includes sending a wireless instruction signal to the receiver. The shifting tool engages the actuator in response to the receiver receiving the instruction signal. The method further includes operating the actuator using the engaged shifting tool, thereby closing the isolation valve and isolating the formation from an upper portion of the wellbore.

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.

公开(公告)号：NO337070B1

公开(公告)日：2016-01-11

申请号：NO20061019

申请日：2006-03-01

Applicant: WEATHERFORD/LAMB INC

Inventor： BAILEY THOMAS FLOYD ,  BRUNNERT DAVID J ,  HAUGEN DAVID MICHAEL ,  SMITH KEVIN ,  BANSAL RAM K ,  FULLER TOM ,  ROOYAKKERS ROY W ,  SKINNER GRAHAM ,  TILTON FREDERICK T

IPC: E21B21/08 ,  E21B4/02 ,  E21B21/14 ,  E21B33/14