E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/06 (2006.01) E21B 34/06 (2006.01) G05D 7/00 (2006.01)
Patent
CA 2509928
An apparatus for use in a wellbore comprises a flow control device having an open position, a closed position, and at least one intermediate position. The apparatus further comprises a chamber and a movable member for actuating the flow control device, where the movable member is movable inside the chamber. The movable member causes a characteristic in the chamber to change in response to movement of the movable member to actuate the flow control device. A sensor detects the change in the characteristic inside the chamber that is indicative of actuation of the flow control device.
Arena Michele
Fontenot Robert J.
Ross Donald W.
Schlumberger Canada Limited
Smart & Biggar
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