High pressure blowout preventer system
US10048673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2015 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Sep 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/37399
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A BOP system for use in a high pressure subsea environment, including a BOP stack including a lower marine riser package and a lower stack portion, the lower stack portion having a plurality of BOP rams attached to a subsea wellhead. The system also includes a riser subsystem extending from a drilling vessel to the BOP stack and providing fluid communication therebetween, a ship board subsystem electronically, mechanically, and hydraulically connected to the BOP stack and the riser subsystem to control the functions of the BOP stack and the riser subsystem, and a safety instrumented system having a surface logic solver and at least one subsea logic solver, the safety instrumented system in communication with at least a portion of the BOP rams to act as a redundant control system in case of failure of the ship board subsystem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.