Wellhead assembly having seal assembly with axial restraint
US8636072B2 · kind B2 · utility
4Cited by
36References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2008 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Apr 27, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellhead system comprising a seal with a restraining member adapted to cooperate with a housing to restrict axial movement of the seal. The seal is adapted to form a seal between the housing, such as a wellhead, and a tubular member, such as a casing hanger. The seal has a latch ring that is expanded outward as the seal is installed within the wellhead. Axial movement of the seal is restricted by engagement between the expanded latch ring and the inner profile of the housing. The seal and housing may be adapted so that a portion of the seal is received by a recess in the inner profile of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.