Hydraulic flushing system
US9981294B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2014 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Aug 12, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/4245
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydraulic flushing system includes a hydraulic downhole control line that runs from a hydraulic source to a surface controlled sub-surface safety valve of an underwater hydrocarbon extraction facility, where the hydraulic downhole control line includes a directional control valve. The hydraulic flushing system further includes a purge line coupled to the hydraulic downhole control line downstream of the directional control valve to a service line. The purge line includes a fluid isolation valve therein to enable purging of a hydraulic fluid. The hydraulic flushing system further includes a service line coupled to the purge line via the fluid isolation valve to store the purged hydraulic fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.