Do seismic waves sense fracture connectivity?

A defining characteristic of fractured rocks is their very high level of seismic attenuation, which so far has been assumed to be mainly due to wave-induced fluid flow (WIFF) between the fractures and the pore space of the embedding matrix. Using oscillatory compressibility simulations based on the...

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Autores principales: Rubino, Jorge Germán, Guarracino, Luis, Müller, Tobias M., Holliger, Klaus
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Geología
Porous media
Seismic attenuation
Fractured rocks
Numerical simulations
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/102664
https://ri.conicet.gov.ar/11336/21935
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-102664
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geología
Porous media
Seismic attenuation
Fractured rocks
Numerical simulations
spellingShingle Geología
Porous media
Seismic attenuation
Fractured rocks
Numerical simulations
Rubino, Jorge Germán
Guarracino, Luis
Müller, Tobias M.
Holliger, Klaus
Do seismic waves sense fracture connectivity?
topic_facet Geología
Porous media
Seismic attenuation
Fractured rocks
Numerical simulations
description A defining characteristic of fractured rocks is their very high level of seismic attenuation, which so far has been assumed to be mainly due to wave-induced fluid flow (WIFF) between the fractures and the pore space of the embedding matrix. Using oscillatory compressibility simulations based on the quasi-static poroelastic equations, we show that another important, and as of yet undocumented, manifestation of WIFF is at play in the presence of fracture connectivity. This additional energy loss is predominantly due to fluid flow within the connected fractures and is sensitive to their lengths, permeabilities, and intersection angles. Correspondingly, it contains key information on the governing hydraulic properties of fractured rock masses and hence should be accounted for whenever realistic seismic models of such media are needed.
format Articulo
Articulo
author Rubino, Jorge Germán
Guarracino, Luis
Müller, Tobias M.
Holliger, Klaus
author_facet Rubino, Jorge Germán
Guarracino, Luis
Müller, Tobias M.
Holliger, Klaus
author_sort Rubino, Jorge Germán
title Do seismic waves sense fracture connectivity?
title_short Do seismic waves sense fracture connectivity?
title_full Do seismic waves sense fracture connectivity?
title_fullStr Do seismic waves sense fracture connectivity?
title_full_unstemmed Do seismic waves sense fracture connectivity?
title_sort do seismic waves sense fracture connectivity?
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/102664
https://ri.conicet.gov.ar/11336/21935
work_keys_str_mv AT rubinojorgegerman doseismicwavessensefractureconnectivity
AT guarracinoluis doseismicwavessensefractureconnectivity
AT mullertobiasm doseismicwavessensefractureconnectivity
AT holligerklaus doseismicwavessensefractureconnectivity
bdutipo_str Repositorios
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