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Experimental results on the combined effects of frequency and pressure on the dispersion of elastic waves in porous rocks

Fortin, Jerome; Piementa, L.; Gueguen, Yves; Schubnel, Alexandre; David, Emmanuel; Adelinet, M.

Description

Experimental results are presented on the dispersive nature of elastic waves in porous rocks. These results show the combined effects of frequency, pressure, and fluid viscosity on the bulk modulus in fluid-saturated sandstone and basalt. At low frequency (0.1 Hz), samples behave as though fully drained: The bulk modulus remains unchanged under argon-, glycerin-, and water-saturated conditions. However, the high-frequency (or unrelaxed) bulk modulus, deduced from ultrasonic velocities, is...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
URI: http://hdl.handle.net/1885/70953
Source: Leading Edge, The
DOI: 10.1190/tle33060648.1

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