Extended Gassmann equation with dynamic volumetric strain: Modeling wave dispersion and attenuation of heterogeneous porous rocks
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DOI: 10.1190/geo2020-0395.1
Abstract: Sedimentary rocks are often heterogeneous porous media inherently containing complex distributions of heterogeneities (e.g., fluid patches and cracks). Understanding and modeling their frequency-dependent elastic and adsorption behaviors is of great interest for subsurface rock characterization… read more here.
Keywords: dispersion; heterogeneous porous; dispersion attenuation; gassmann equation ... See more keywords
Chasing the Bubble: Ultrasonic Dispersion and Attenuation from Cement with Superabsorbent Polymers to Shampoo
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DOI: 10.3390/ma13204528
Abstract: This study aims to experimentally investigate the ultrasonic behavior of fresh cement focusing on the contribution of the entrapped air bubbles. Frequency dispersion and attenuation carry delicate information that is not possible to gather by… read more here.
Keywords: dispersion attenuation; dispersion; cement; superabsorbent polymers ... See more keywords