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.

Date of Patent:
Aug. 29, 2006

Filed:

Jun. 08, 2004
Applicant:

Larry Reimert, Houston, TX (US);

Inventor:

Larry Reimert, Houston, TX (US);

Assignee:

Dril-Quip, Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 29/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A subsea well assembly includes a wellhead housinghaving a cylindrical inner sealing surface and a tubular hangerhaving a tapered external sealing surface. The running toolincludes a central stemconnected to the running string. A setting pistonis responsive to fluid pressure in the annulus about the running string, and has a radially outer surface and a radially inner surface each for sealing with the running tool body. Fluid pressure to set the seal assembly may be applied to the setting piston through an annulus about the running string, and may also act directly on an initially set seal assembly


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