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Link Between Attenuation and Velocity Dispersion
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 67th EAGE Conference & Exhibition, Jun 2005, cp-140-00045
Abstract
In a viscoelastic sample, the causality principle links the attenuation of a stress wave to the changes in its speed as the frequency varies. This rigorous theoretical link helps explain the velocity-frequency dispersion and attenuation commonly observed in rocks with fluid. Usually, the attenuation is maximum in the frequency range where the velocity change is most rapid.