Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate
2011-06-07
2011-06-07
Bomar, Shane (Department: 3676)
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
Reexamination Certificate
active
07954552
ABSTRACT:
A system that is usable with a well may include a piston, a primary control subsystem and an override subsystem. The piston actuates the downhole tool, and the primary control subsystem may be connected to at least one hydraulic line in order to move the piston in response to pressure that is communicated to the tool via the hydraulic line(s). The override subsystem may be connected to the hydraulic line(s) to override the primary control subsystem and move the piston in response to pressure communicated to the tool via the hydraulic line(s).
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Mandrou Laure
Prost Jerome
Rioufol Emmanuel
Saleh Ahmed
Bomar Shane
Clark Brandon S.
Curington Tim
Schlumberger Technology Corporation
Wallace Kipp C
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