Sealing device for use in subsea wells
US6321846A · kind A · utility
36Cited by
16References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2000 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Feb 24, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/076
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for use in a subsea well includes a sealing element having an inner surface defining a bore through which a carrier line of a tool string may extend. A pressure-activated operator is coupled to the sealing element and is adapted to cause the sealing element to deform generally radially inwardly to allow the inner surface to apply a force to seal around the carrier line. A fluid pressure conduit extends from a sea surface pressure source to the pressure-activated operator. The sealing element is part of a pack-off device that can be used in a subsea blow-out preventer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.