Device and method for regulating fluid flow in a well
US6516888B1 · kind B1 · utility
74Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Feb 21, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/402
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A device for mutually independent control of regulating devices for controlling fluid flow between a hydrocarbon reservoir and a well includes a flow controller and a hydraulic actuator. The actuator is flow-relatedly arranged in series with at least two associated control valves in a path between two hydraulic pipes. The control valves are controlled to open for the flow of hydraulic liquid to the actuator by the pressure in the two hydraulic pipes, and the combination of two hydraulic pipes which are connected to an actuator is different for independently controllable regulating devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.