Flow stop valve
US8752630B2 · kind B2 · utility
0Cited by
99References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2012 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Oct 18, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7835
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flow stop valve (20) positionable in a downhole tubular (6), and a method, are provided. The flow stop valve (20) is in a closed position when a pressure difference between fluid outside the downhole tubular (6) and inside the downhole tubular (6) at the flow stop valve (20) is below a threshold value, thereby preventing flow through the downhole tubular. The flow stop valve (20) is in an open position when the pressure difference between fluid outside the downhole tubular (6) and inside the downhole tubular (6) at the flow stop valve (20) is above a threshold value, thereby permitting flow through the downhole tubular (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.