Annular gas lift valve
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United States of America Patent
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Sep 6, 2016
Grant Date -
Apr 30, 2015
app pub date -
Oct 24, 2013
filing date -
Oct 24, 2013
priority date (Note) -
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Abstract
A system for producing hydrocarbons may include a production control device positioned along a production flow line. The production control device may include an enclosure having an interior space and an isolation device disposed in the interior space. The isolation device may divide the interior space into an upper interior space and a lower interior space. The production control device may also include a first flow control device positioned in the upper interior space, and a second flow control device positioned in the upper interior space. The first flow control device may be responsive to a control signal transmitted via a control line from a surface location. The second flow control device may reactively block fluid flow from the lower interior section to the upper interior section when a pressure differential between the upper interior space and the lower interior space falls below a preset value.
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