Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures

An important characteristic of fractured rocks is their high seismic attenuation, which so far has been mainly attributed to wave-induced fluid flow (WIFF) between the fractures and the embedding matrix. The influence of fracture connectivity on seismic attenuation has, however, recently, only been...

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Autores principales: Rubino, J. Germán, Quintal, Beatriz, Müller, Tobias M., Guarracino, Luis, Jänicke, Ralf, Steeb, Holger, Holliger, Klaus
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Geofísica
fractured rocks
seismic attenuation
WIFF
fracture connectivity
embedding matrix
Biot’s theory
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/143073
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-143073
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geofísica
fractured rocks
seismic attenuation
WIFF
fracture connectivity
embedding matrix
Biot’s theory
spellingShingle Geofísica
fractured rocks
seismic attenuation
WIFF
fracture connectivity
embedding matrix
Biot’s theory
Rubino, J. Germán
Quintal, Beatriz
Müller, Tobias M.
Guarracino, Luis
Jänicke, Ralf
Steeb, Holger
Holliger, Klaus
Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures
topic_facet Geofísica
fractured rocks
seismic attenuation
WIFF
fracture connectivity
embedding matrix
Biot’s theory
description An important characteristic of fractured rocks is their high seismic attenuation, which so far has been mainly attributed to wave-induced fluid flow (WIFF) between the fractures and the embedding matrix. The influence of fracture connectivity on seismic attenuation has, however, recently, only been investigated. Numerical compressibility and shear tests based on Biot’s quasi-static poro-elastic equations illustrate that an important manifestation of WIFF arises in the presence of fracture connectivity. The corresponding energy loss, which can be significant for both P- and S-waves, is mainly due to fluid flow within the connected fractures and is sensitive to the permeabilities as well as the lengths and intersection angles of the fractures. Correspondingly, this phenomenon contains valuable information on the governing hydraulic properties of fractured rocks and hence should be accounted for whenever realistic seismic models of such media are needed.
format Articulo
Articulo
author Rubino, J. Germán
Quintal, Beatriz
Müller, Tobias M.
Guarracino, Luis
Jänicke, Ralf
Steeb, Holger
Holliger, Klaus
author_facet Rubino, J. Germán
Quintal, Beatriz
Müller, Tobias M.
Guarracino, Luis
Jänicke, Ralf
Steeb, Holger
Holliger, Klaus
author_sort Rubino, J. Germán
title Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures
title_short Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures
title_full Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures
title_fullStr Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures
title_full_unstemmed Energy dissipation of P- and S-waves in fluid-saturated rocks: An overview focusing on hydraulically connected fractures
title_sort energy dissipation of p- and s-waves in fluid-saturated rocks: an overview focusing on hydraulically connected fractures
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/143073
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bdutipo_str Repositorios
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