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:
Feb. 17, 2015

Filed:

Nov. 22, 2011
Applicants:

Robert Bell, Aberdeen, GB;

Rolf Nordaunet, Sandvika, NO;

Staale Svindland, Sandvika, NO;

Inventors:

Robert Bell, Aberdeen, GB;

Rolf Nordaunet, Sandvika, NO;

Staale Svindland, Sandvika, NO;

Assignee:

Vetco Gray Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/12 (2006.01); E21B 41/04 (2006.01); E21B 23/00 (2006.01); E21B 33/035 (2006.01); E21B 33/043 (2006.01);
U.S. Cl.
CPC ...
E21B 33/035 (2013.01); E21B 33/043 (2013.01);
Abstract

A subsea wellhead assembly having a tubing hanger set in a tubing hanger spool and a ring with axial passages set in an upper end of the tubing hanger. The wellhead assembly includes a production tree that lands on the tubing hanger spool. Tubing extends from the axial passages in the ring through axial bores provided in a sidewall of the tubing hanger. When landed, a lower end of the production tree engages an upper surface of the ring causing the ring to rotate and align its axial passages with axial passages in the production tree. The respective lower and upper surfaces of the tree and ring are strategically castellated to orient the passages.


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