Wells – Automatic
Patent
1997-02-14
1998-11-10
Suchfield, George
Wells
Automatic
13762548, 13762568, 166 666, 166 667, E21B 4312, E21B 4700
Patent
active
058329960
ABSTRACT:
A downhole controller for a flow control device. The controller is responsive to commands from the surface or from downhole and controls the flow device using a four way solenoid actuated spool valve and a hydraulically actuated piston system connected to the flow control device.
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Carmody Michael A.
Coon Robert J.
Hopmann Mark E.
Jennings Steven L.
Jones Kevin R.
Baker Hughes Incorporated
Suchfield George
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