Acoustics – Geophysical or subsurface exploration – Well logging
Patent
1989-04-17
1990-01-02
Tarcza, Thomas H.
Acoustics
Geophysical or subsurface exploration
Well logging
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.
King Gary A.
Medlin William L.
Hager Jr. George W.
Lobo Ian J.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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