Borehole ultrasonic flow meter

Measuring and testing – Borehole or drilling – Downhole test

Patent

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Details

7386131, E21B 4710

Patent

active

044520778

ABSTRACT:
A borehole tool incorporates an ultrasonic flow measuring device which enables calculation of the rate of flow of material through various perforated intervals of a well casing as a function of depth. Fluid flow rate is proportional to the difference in travel time of a pulse-type ultrasonic signal over a fixed distance in opposite directions through the fluid.

REFERENCES:
patent: 3336801 (1967-08-01), Snavely
patent: 3934467 (1976-01-01), Nicolas

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