Wave attenuation in partially saturated porous rocks: New observations and interpretations across the scales
Access Status
Fulltext not available
Authors
Caspari, Eva
Qi, Q.
Lopes, Sofia
Lebedev, Maxim
Gurevich, Boris
Rubino, J.
Velis, D.
Clennel, M.
Müller, T.
Date
2014Type
Journal Article
Metadata
Show full item recordCitation
Caspari, E. and Qi, Q. and Lopes, S. and Lebedev, M. and Gurevich, B. and Rubino, J. and Velis, D. et al. 2014. Wave attenuation in partially saturated porous rocks: New observations and interpretations across the scales. The Leading Edge. 33 (6): pp. 606-614.
Source Title
The Leading Edge
ISSN
School
Department of Exploration Geophysics
Collection
Abstract
Seismic waves propagating in porous rocks saturated with two immiscible fluids can be strongly attenuated. Predicting saturation effects on seismic responses requires a sound understanding of attenuation and velocity dependencies on the fluid distribution. Decoding these effects involves interpreting laboratory experiments, analyzing well-log data, and performing numerical simulations. Despite striking differences among scales, flow regimes, and frequency bands, some aspects of wave attenuation can be explained with a single mechanism — wave-induced pressure diffusion. Different facets of wave-induced pressure diffusion can be revealed across scales.
Related items
Showing items related by title, author, creator and subject.
-
Galvin, Robert (2007)Development of a hydrocarbon reservoir requires information about the type of fluid that saturates the pore space, and the permeability distribution that determines how the fluid can be extracted. The presence of fractures ...
-
Mueller, T.; Gurevich, Boris; Lebedev, Maxim (2010)One major cause of elastic wave attenuation in heterogeneous porous media is wave-induced flow of the pore fluid between heterogeneities of various scales. It is believed that for frequencies below 1 kHz, the most important ...
-
Toms, J.; Mller, T.; Ciz, Radim; Gurevich, Boris (2006)Saturation of porous rocks with a mixture of two fluids (known as partial saturation) has a substantial effect on the seismic waves propagating through these rocks. In particular, partial saturation causes significant ...