Large bore vertical tree
US8157015B2 · kind B2 · utility
9Cited by
20References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2009 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Apr 18, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A subsea wellhead assembly that includes a wellhead housing, a production tree, a tubing hanger adapted to land in the wellhead assembly inside the wellhead housing, and a bore formed through the production tree having an inner diameter greater than the tubing hanger outer diameter. A hanger adapter may be included having an annular body disposed on the tubing hanger upper surface and a flange member projecting radially outward from the annular body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.