Offshore fluid transfer systems and methods
US9068424B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2012 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Apr 14, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/004
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for transferring fluids from a free-standing riser to a surface vessel comprises a first valve assembly including a first valve spool and a first isolation valve configured to control the flow of fluids through the first valve spool. In addition, the system comprises a second valve assembly releasably coupled to the first valve assembly with a hydraulically actuated connector. The second valve assembly includes a second valve spool and a second isolation valve configured to control the flow of fluids through the second valve spool. Further, the system comprises a deployment/retrieval rigging coupled to the first valve assembly and configured to suspend the first valve assembly and the second valve assembly from the surface vessel. Each isolation valve has an open position allowing fluid flow therethrough and a closed position restricting fluid flow therethrough, and each isolation valve is biased to the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.