Effects of mesoscopic flow on ultrasonic velocities

Qi, Q.; Mueller, Tobias; Gurevich, Boris; Correia Lopes, Sofia Alexandra; Lebedev, Maxim

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Authors

Qi, Q.

Mueller, Tobias

Gurevich, Boris

Correia Lopes, Sofia Alexandra

Lebedev, Maxim

Date

2013

Type

Conference Paper

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Abstract

Mesoscopic flow is a significant mechanism of fluid-related seismic attenuation in partiallysaturated rocks. Attenuation due to this mechanism is controlled by spatial distribution of fluids.To study this effect in the laboratory we quantify mesoscale fluid distribution from CTscans and compute its associated acoustic signatures using poroelasticity theory. By comparingthese theoretical estimates with experimentally measured velocities, we find thatmesoscopic flow underestimates elastic wave attenuation at ultrasonic frequencies.

Citation

Qi, Q. and Mueller, T. and Gurevich, B. and Correia Lopes, S.A. and Lebedev, M. 2013. Effects of mesoscopic flow on ultrasonic velocities, in EAGE (ed), Second International Workshop on Rock Physics, Aug 4 2013. Southampton: EAGE.

Source Title

Second International Workshop on Rock Physics

URI

http://hdl.handle.net/20.500.11937/49249

Additional URLs

http://earthdoc.eage.org

Department

CSIRO Petroleum, Perth, Australia

Collections

Research Papers