Patent · US Active

Multiplex tubing hanger

US8955594B2 · kind B2 · utility

7Cited by

8References

7Claims

0Family size

Assignee

Vetco Gray, LLC · US

Inventors

Robert Bell · Moorpark, US
Rolf Nordaunet · Sandvika, NO
Staale Svindland · Sandvika, NO

Key dates

Filing date	Nov 22, 2011
Grant date	Feb 17, 2015
Priority date	—
Expiry date	Mar 4, 2032

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B33/043
WIPO fieldCivil engineering
WIPO sectorOther fields

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.