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:
Nov. 18, 2008
Filed:
Jun. 21, 2005
Joe Noske, Houston, TX (US);
David J. Brunnert, Cypress, TX (US);
David Pavel, Kingwood, TX (US);
Ramkumar K. Bansal, Houston, TX (US);
David Haugen, League City, TX (US);
Mike A. Luke, Houston, TX (US);
Joe Noske, Houston, TX (US);
David J. Brunnert, Cypress, TX (US);
David Pavel, Kingwood, TX (US);
Ramkumar K. Bansal, Houston, TX (US);
David Haugen, League City, TX (US);
Mike A. Luke, Houston, TX (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
Methods and apparatus for utilizing a downhole deployment valve (DDV) to isolate a pressure in a portion of a bore are disclosed. The DDV system can include fail safe features such as selectively extendable attenuation members for decreasing a falling object's impact, a normally open back-up valve member for actuation upon failure of a primary valve member, or a locking member to lock a valve member closed and enable disposal of a shock attenuating material on the valve member. Actuation of the DDV system can be electrically operated and can be self contained to operate automatically downhole without requiring control lines to the surface. Additionally, the actuation of the DDV can be based on a pressure supplied to an annulus.