Computer controlled downhole safety valve system
US6199629A · kind A · utility
49Cited by
25References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1998 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Sep 22, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A subsurface safety device positioning and monitoring system includes a controller and at least one downhole sensor that senses and records conditions of the well near the valve and of the valve itself. Conditions include temperature, pressure, flow rate, degree of closure of valve, structural condition of valve, water cut of produced fluids, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.