Flow control valve system
US5176164A · kind A · utility
109Cited by
19References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1989 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Dec 27, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7761
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flow control valve system for production of wells such as by gas lift including a downhole valve electrically or pressure pulse controlled from the surface including a valve having apparatus for controlling the flow rate through the valve by varying the valve orifice size over a continuous range and maintaining the orifice size constant when desired. Both rotary and poppet type valves are disclosed. Valve orifice size and well conditions are monitored downhole and transmitted to the surface for control of the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.