Lithologic studies utilizing acoustic wave attenuation

Details Lithologic studies utilizing acoustic wave attenuation Lithologic studies utilizing acoustic wave attenuation

1981-11-23

1984-05-15

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

367 28, 367 47, G01V 140, G01V 130

Patent

active

044492081

ABSTRACT:
A method for determining the lithology of subterranean structures based on attenuation of wave energy is disclosed which features a wave model based on a two-way solution to the wave equation rather than one-way solutions previously proposed. Rather than measuring amplitude of the wave as a function of its attenuation, energy flux density is measured which provides a two-way wave solution. In a preferred embodiment, pressure gradient measuring transducers are used to measure the energy flux density.

REFERENCES:
patent: 2887172 (1959-05-01), Hardway
patent: 3622969 (1971-11-01), Lebreton et al.
patent: 3781784 (1973-12-01), Desbrandes
patent: 4102185 (1978-07-01), Dowling et al.
patent: 4134097 (1979-01-01), Cowles
patent: 4208906 (1980-06-01), Roberts
patent: 4210018 (1980-07-01), Brieger

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