Integrated fail-safe and pump-through valve arrangement
US10907434B2 · kind B2 · utility
0Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2019 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Jun 5, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/212
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic arrangement for fail-safe and pump-through of a safety valve. The arrangement allows for compact actuation of a safety valve through accumulators. The arrangement supports automatic closure of the valve in the emergent circumstance of any loss of hydraulic control above the valve. Additionally, the arrangement also allows for a technique of re-opening the valve for long term killing of a well in direct response to the introduction of kill fluid without requiring any added complex interventional measures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.