Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate
2006-01-23
2008-11-25
Thompson, Kenneth (Department: 3672)
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
C166S316000, C166S334100, C138S043000, C251S127000
Reexamination Certificate
active
07455115
ABSTRACT:
A choke that is usable with a well includes an inlet port and an outlet port. The choke also includes pressure drop stages between the inlet port and the outlet port. Each of the pressure drop stages is adapted to create part of an overall pressure differential between the inlet and outlet ports.
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Hosatte Pierre
Loretz Ives
Kurka James L.
Schlumberger Technology Corporation
Thompson Kenneth
Trop Pruner & Hu P.C.
Wright Daryl R.
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