Safety valve with electrical actuator and tubing pressure balancing
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United States of America Patent
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Jun 30, 2015
Grant Date -
May 23, 2013
app pub date -
Jan 16, 2013
filing date -
Apr 12, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A well tool for use with a subterranean well can include a flow passage extending longitudinally through the well tool, an internal chamber containing a dielectric fluid, and a flow path which alternates direction, and which provides pressure communication between the internal chamber and the flow passage. A method of controlling operation of a well tool can include actuating an actuator positioned in an internal chamber of the well tool, a dielectric fluid being disposed in the chamber, and the chamber being pressure balanced with a flow passage extending longitudinally through the well tool, and varying the actuating, based on measurements made by at least one sensor of the well tool.
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