Metal seal for wellheads
US8066061B2 · kind B2 · utility
0Cited by
12References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2009 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Dec 30, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A reusable metal seal for a wellhead provides a metal-to-metal seal and includes upper and lower tapered sealing flanks which may be deflected by tapered wall surfaces on the wellhead engaging the taper sealing flanks, and the seal may have a plurality of annular relief grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.