<p>A downhole controller for a flow control device. The controller is responsiv e to commands from the surface or from downhole and controls the flow device usin g a four way solenoid actuated spool valve and a hydraulically actuated piston system connected to the flow control device.</p>
申请公布号
CA2197260(C)
申请公布日期
2006.04.18
申请号
CA19972197260
申请日期
1997.02.11
申请人
BAKER HUGHES INCORPORATED
发明人
CARMODY, MICHAEL A.;JONES, KEVIN R.;COON, ROBERT J.;MURRAY, DOUGLAS J.;HOPMANN, MARK E.;JENNINGS, STEVEN L.
