Slotted metal seal
US9169711B2 · kind B2 · utility
4Cited by
20References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2012 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Oct 16, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A seal for sealing an annulus between an outer tubular wellhead member and an inner tubular wellhead member is described. The seal is an annular sealing ring that has a plurality of circumferentially spaced apart sealing ring grooves extending at least from a first end to a second end of the sealing surface of at least one of the wellhead members. When the seal is energized, fouling on the sealing surface is urged toward and then through the slot, axially away from the sealing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.