Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate
2009-02-19
2011-12-27
Neuder, William P (Department: 3672)
Wells
Processes
With indicating, testing, measuring or locating
C166S372000, C700S281000
Reexamination Certificate
active
08082991
ABSTRACT:
A monitoring and control system for a dewatering pump configured to dewater a gas well is provided. A dewatering pump is driven at a first speed to pump fluid out of a well annulus. A fluid level detection device is configured to identify a change of fluid level in the well annulus occurring between a first time and a second, later time. A controller is configured to change the speed of the dewatering pump from the first speed to a second speed based upon the identified change in fluid level. Several embodiments of the fluid level detection devices are provided.
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Dorel Alain P.
Dowling Michael A.
Kamphaus Jason
Sukianto Harryson
Neuder William P
Patterson Jim
Schlumberger Technology Corporation
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