The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2013
Filed:
Nov. 10, 2009
Wei Jake Xu, Houston, TX (US);
Albert C. Odell, Ii, Kingwood, TX (US);
Simon J. Harrall, Houston, TX (US);
Thomas M. Redlinger, Houston, TX (US);
Christopher M. Vreeland, Houston, TX (US);
Andrew Antoine, Houston, TX (US);
David J. Brunnert, Cypress, TX (US);
Tommy L. Laird, Cypress, TX (US);
Michael J. Moody, Katy, TX (US);
Frederick T. Tilton, Spring, TX (US);
Wei Jake Xu, Houston, TX (US);
Albert C. Odell, II, Kingwood, TX (US);
Simon J. Harrall, Houston, TX (US);
Thomas M. Redlinger, Houston, TX (US);
Christopher M. Vreeland, Houston, TX (US);
Andrew Antoine, Houston, TX (US);
David J. Brunnert, Cypress, TX (US);
Tommy L. Laird, Cypress, TX (US);
Michael J. Moody, Katy, TX (US);
Frederick T. Tilton, Spring, TX (US);
Weatherford/Lamb, Inc., Houston, TX (US);
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.