Sealing assembly for subsea wellheads
US5755287A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Apr 3, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/038
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sealing assembly (40) for fitting between an upper wellhead connector (12) and a lower wellhead housing or hub 14. Upper wellhead connector (12) has a downwardly facing frusto-conical sealing surface (32) and wellhead housing (14) has an upwardly facing frusto-conical sealing surface (34). Sealing assembly (40) includes a metal ring (42) having annular grooves (58) therein to receive elastomeric sealing elements (60) therein. Elastomeric sealing elements (60) have extending lips (62) for contacting and sealing against adjacent sealing surfaces (32, 34) spaced from opposed frusto-conical surfaces (54, 56) on the metal ring (42) to provide elastomeric seals for the sealing surfaces (32, 34) of wellhead connector (12) and wellhead housing (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.