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:
Jun. 14, 2016
Filed:
Jul. 01, 2011
Larry E. Reimert, Houston, TX (US);
Denise A. M. Antunes, Houston, TX (US);
Morris B. Wade, Tomball, TX (US);
Larry E. Reimert, Houston, TX (US);
Morris B. Wade, Tomball, TX (US);
Dril-Quip, Inc., Houston, TX (US);
Abstract
The lockdown mechanism () and running tool () are provided for securing the casing hanger () within the wellhead () and sealing the annulus between the casing and the wellhead. The lockdown ring () fixes the lockdown sleeve () to a wellhead in response to a lockdown piston (). A first seal () energized by the running tool seals between the lockdown sleeve and the wellhead. Ball seat () is axially movable within the running tool, and a second seal also energized by the running tool () seals between the lockdown sleeve and the casing hanger.