Blowout preventer shut-in assembly of last resort
US9976375B2 · kind B2 · utility
3Cited by
18References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2014 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Apr 12, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0007
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for drilling and/or producing a subsea wellbore comprises a primary BOP comprising a primary ram BOP. The secondary BOP is connectable to a subsea wellhead such that the secondary BOP is positioned between the primary BOP and the subsea well-head, in which the secondary BOP comprises a shear ram BOP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.