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dc.contributor.author
Hunziker, Jürg
dc.contributor.author
Favino, Marco
dc.contributor.author
Caspari, Eva
dc.contributor.author
Quintal, Beatriz
dc.contributor.author
Rubino, Jorge German
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dc.contributor.author
Krause, Rolf
dc.contributor.author
Holliger, Klaus
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dc.date.available
2020-02-10T20:57:09Z
dc.date.issued
2018-01
dc.identifier.citation
Hunziker, Jürg; Favino, Marco; Caspari, Eva; Quintal, Beatriz; Rubino, Jorge German; et al.; Seismic Attenuation and Stiffness Modulus Dispersion in Porous Rocks Containing Stochastic Fracture Networks; Wiley; Journal of Geophysical Research: Solid Earth; 123; 1; 1-2018; 125-143
dc.identifier.issn
2169-9356
dc.identifier.uri
http://hdl.handle.net/11336/97129
dc.description.abstract
Understanding seismic attenuation and modulus dispersion mechanisms in fractured rocks can result in significant advances for the indirect characterization of such environments. In this paper, we study attenuation and modulus dispersion of seismic waves caused by fluid pressure diffusion (FPD) in stochastic 2-D fracture networks, allowing for a state-of-the-art representation of natural fracture networks by a power law length distribution. To this end, we apply numerical upscaling experiments consisting of compression and shear tests to our samples of fractured rocks. The resulting P and S wave attenuation and modulus dispersion behavior is analyzed with respect to the density, the length distribution, and the connectivity of the fractures. We focus our analysis on two manifestations of FPD arising in fractured rocks, namely, fracture-to-background FPD at lower frequencies and fracture-to-fracture FPD at higher frequencies. Our results indicate that FPD is sensitive not only to the fracture density but also to the geometrical characteristics of the fracture length distributions. In particular, our study suggests that information about the local connectivity of a fracture network could be retrieved from seismic data. Conversely, information about the global connectivity, which is directly linked to the effective hydraulic conductivity of the probed volume, remains rather difficult to infer.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ROCK PHYSICS
dc.subject
SEISMIC ATTENUATION
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STOCHASTIC FRACTURE NETWORKS
dc.subject.classification
Geoquímica y Geofísica
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Seismic Attenuation and Stiffness Modulus Dispersion in Porous Rocks Containing Stochastic Fracture Networks
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-15T17:30:34Z
dc.journal.volume
123
dc.journal.number
1
dc.journal.pagination
125-143
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Hunziker, Jürg. Universite de Lausanne; Suiza
dc.description.fil
Fil: Favino, Marco. Universita Della Svizzera Italiana; Italia. Universite de Lausanne; Suiza
dc.description.fil
Fil: Caspari, Eva. Universite de Lausanne; Suiza
dc.description.fil
Fil: Quintal, Beatriz. Universite de Lausanne; Suiza
dc.description.fil
Fil: Rubino, Jorge German. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Krause, Rolf. Universita Della Svizzera Italiana; Italia
dc.description.fil
Fil: Holliger, Klaus. Universite de Lausanne; Suiza
dc.journal.title
Journal of Geophysical Research: Solid Earth
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/2017JB014566
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017JB014566
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