Method of filtering pump noise

Details Method of filtering pump noise Method of filtering pump noise

2005-06-20

2010-11-09

Lobo, Ian J (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Wellbore telemetering

Through well fluids

C175S045000

Reexamination Certificate

active

07830749

ABSTRACT:
A method of filtering out pressure noise generated by one or more piston pumps, where each pump is connected to a common downstream piping system, and where the discharge pressure is measured by a pressure sensitive gauge, wherein the instantaneous angular position(s) of the pump(s)' crankshaft or actuating cam is/are measured simultaneously with the discharge pressure and used as fundamental variables in an adaptive mathematical noise model.

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International Search Report for parent application PCT/NO2005/000217, having a mailing date of Oct. 4, 2005.

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