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:
Dec. 27, 2005
Filed:
Nov. 20, 2002
Stephen Paul Fenton, Houston, TX (US);
Francisco Dezen, Houston, TX (US);
Lars-petter Sollie, Houston, TX (US);
Jon E. Hed, Houston, TX (US);
Stephen Paul Fenton, Houston, TX (US);
Francisco Dezen, Houston, TX (US);
Lars-Petter Sollie, Houston, TX (US);
Jon E. Hed, Houston, TX (US);
Vetco Gray Inc., Houston, TX (US);
Abstract
A subsea wellhead assembly has a tree that connects internally to the bore of wellhead housing. The tree has a lower end that has a lock member that is moved radially outward into engagement with a profile in the bore of the wellhead housing. The tree is a monobore, having a production passage but no tubing annulus passage extending through it. The tubing hanger has a tubing annulus passage and a production passage. A valve is mounted in the tubing hanger for controlling flow through the tubing annulus passage.