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:
Apr. 18, 2006
Filed:
Oct. 16, 2003
Morris B. Wade, Houston, TX (US);
Gregory D. Williams, Houston, TX (US);
Lionel J. Milberger, Houston, TX (US);
Timothy A. Pillow, Houston, TX (US);
Morris B. Wade, Houston, TX (US);
Gregory D. Williams, Houston, TX (US);
Lionel J. Milberger, Houston, TX (US);
Timothy A. Pillow, Houston, TX (US);
Dril-Quip, Inc., Houston, TX (US);
Abstract
A running tool, a lockdown sleeve, and a seal ringare provided for axially fixing upward movement of a tubular hanger with respect to a subsea wellhead. The running toolincludes a tool latching and unlatching mechanismfor axially connecting the running tool to the subsea wellhead housing, a tool force applicatorfor exerting a downward setting force, and a sleeve latching mechanismfor securing the lockdown sleeve to the subsea wellhead housing. The sealis provided between the lockdown sleeve and one of the tubular hanger and the wellhead housing. The method of the invention includes running the tool and sleeve in open water to the subsea wellhead housing, locking the tool to the housing, setting the seal, locking the sleeve to the housing, then retrieving the tool in open water.