Subsea system and method for high pressure high temperature wells
US10697264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2019 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Aug 16, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0007
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A subsea production system and method for installing the same are provided. The subsea production system includes a high pressure subsea wellhead, a tubing hanger landed proximate the wellhead, a production tree disposed above the wellhead downstream of the tubing hanger, a riser, a subsea flowline system coupled between the production tree and the riser, at least one barrier located downstream of the tubing hanger, and a secondary barrier valve disposed within the tubing hanger or in line with and upstream of the tubing hanger. The at least one barrier provides a pressure barrier that controls pressure of fluid flowing from components of the subsea production system located upstream of the barrier to components of the subsea production system located downstream of the barrier, and the secondary barrier valve is remotely actuable between a closed position and an open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.