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Drilling choke system<br />
Pressure transmitters,<br />
located on the standpipe<br />
and the choke manifold,<br />
use actual mud pressure as<br />
a pilot to regulate low<br />
pressure pneumatic signals<br />
which are transmitted<br />
through hoses to the<br />
<strong>control</strong> console where<br />
pressure readings are<br />
registered on the panel<br />
gauges.
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