Riser annular isolation device
US10344562B2 · kind B2 · utility
0Cited by
19References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2016 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Dec 2, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In one embodiment, an annular isolation device for a riser includes a tubular body connectable to the riser. A closure member is rotatable between a closed position isolating fluid communication in the tubular body and an open position permitting fluid communication through the tubular body. The annular isolation device further includes an actuator disposed outside the tubular body and operable to rotate the closure member between the open position and the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.