METHOD FOR MEASURING FLUID LEVEL IN WELL Russian patent published in 1994 - IPC

Abstract RU 2018649 C1

FIELD: well drilling. SUBSTANCE: acoustic signal is formed in form of pulse train with preset number of pulses and their duration, and time interval between forward and reflected signals is determined as averaged value of similar pulses in compliance with forward and reflected trains. EFFECT: higher efficiency.

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RU 2 018 649 C1

Authors

Fedotov V.I.

Dates

1994-08-30—Published

1989-09-19—Filed