Borehole acoustic transmitter

Acoustics – Geophysical or subsurface exploration – Well logging

Patent

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Details

367166, 367171, 367912, G01V 140

Patent

active

048906875

ABSTRACT:
An acoustic transmitter for use in a borehole logging tool employs multiple Helmholtz resonators stacked such that apertures in opposite sides of each of the resonators are in linear alignment so as to provide increased acoustic energy output over a broad band of low frequency seismic frequencies.

REFERENCES:
patent: 4674067 (1987-06-01), Zemanek, Jr.
patent: 4700100 (1987-10-01), Congdon et al.

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