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dc.contributor.author
Solazzi, Santiago Gabriel
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dc.contributor.author
Guarracino, Luis
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dc.contributor.author
Rubino, Jorge German
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dc.contributor.author
Holliger, Klaus
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dc.date.available
2021-02-04T19:13:09Z
dc.date.issued
2019-09-13
dc.identifier.citation
Solazzi, Santiago Gabriel; Guarracino, Luis; Rubino, Jorge German; Holliger, Klaus; Saturation hysteresis effects on the seismic signatures ofpartially saturated heterogeneous porous rocks; Blackwell Publishing Ltd; Journal of Geophysical Research: Solid Earth; 124; 11; 13-9-2019; 11316-11335
dc.identifier.issn
2169-9313
dc.identifier.uri
http://hdl.handle.net/11336/124854
dc.description.abstract
Experimental evidence indicates that the spatial distribution of immiscible pore fluids in partially saturated media depends on the flow history and, thus, exhibits hysteresis effects. To date, most works concerned with modelling the effective seismic properties of partially saturated rocks either disregard these effects or account for them employing oversimplified approaches. This, in turn, can lead to erroneous interpretations of the corresponding seismic signatures. In this work, we present a novel methodology that allows to compute hysteresis effects on seismic attenuation and velocity dispersion due to mesoscopic wave-induced fluid flow in realistic scenarios. For this purpose, we first employ a constitutive model that conceptualizes a porous medium as a bundle of constrictive capillary tubes with a fractal pore-size distribution, which allows to estimate local hydraulic properties and capillary pressure-saturation hysteretic relationships in a heterogeneous rock sample. Then, we use a numerical upscaling procedure based on Biot's poroelasticity theory to compute seismic attenuation and velocity dispersion curves during drainage and imbibition cycles. By combining these procedures, we are able to model, for the first time, key features of the saturation field and of the seismic signatures commonly observed in the laboratory during drainage and imbibition experiments. Our results also show that the pore-scale characteristics of a given porous medium, such as the pore-throat geometry, can greatly influence the hysteresis effects on the seismic signatures.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Blackwell Publishing Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
SEISMIC WAVES
dc.subject
PARTIAL SATURATION
dc.subject
HYSTERESIS
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
Saturation hysteresis effects on the seismic signatures ofpartially saturated heterogeneous porous rocks
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-12-16T18:18:46Z
dc.identifier.eissn
2169-9356
dc.journal.volume
124
dc.journal.number
11
dc.journal.pagination
11316-11335
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Solazzi, Santiago Gabriel. Universite de Lausanne; Suiza. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.description.fil
Fil: Guarracino, Luis. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.description.fil
Fil: Rubino, Jorge German. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.description.fil
Fil: Holliger, Klaus. Universite de Lausanne; Suiza. Zhejiang University; China
dc.journal.title
Journal of Geophysical Research: Solid Earth
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1029/2019JB017726
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019JB017726
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