دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a kinds of logging method that records the motion voice of fluid in cement channle and out of casing.

A sound recording downhole. Best performance of noise logs is with gas flow. Gas flow can be heard to about 10 actual ft3/D (Note – not standard ft3/day). At very low gas flow rates (q<400 actual ft3/D),gas flow can be estimated from millivolts of noise