Wells – Processes – Placing or shifting well part
Reexamination Certificate
2008-03-25
2008-03-25
Bagnell, David (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S250010, C166S334400
Reexamination Certificate
active
11160211
ABSTRACT:
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.
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Arena Michele
Fontenot Robert J.
Ross Donald W.
Andrews David
Bagnell David
Galloway Bryan P.
Schlumberger Technology Corporation
Trop Pruner & Hu P.C.
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