Flow control valve system
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United States of America Patent
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Jan 5, 1993
Grant Date -
N/A
app pub date -
Dec 27, 1989
filing date -
Dec 27, 1989
priority date (Note) -
Expired
status (Latency Note)
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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.
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