Modeling Forced Imbibition Processes and the Associated Seismic Attenuation in Heterogeneous Porous Rocks

Quantifying seismic attenuation during laboratory imbibition experiments can provide useful information towards the use of seismic waves for monitoring injection and extraction of fluids in the Earth's crust. However, a deeper understanding of the physical causes producing the observed attenuat...

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Detalles Bibliográficos
Autores principales:	Solazzi, Santiago Gabriel, Guarracino, Luis, Rubino, J. Germán, Müller, Tobias M., Holliger, Klaus
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2017
Materias:	Geofísica Geology Saturation (chemistry) Soil science Attenuation Geotechnical engineering Crust Imbibition Anelastic attenuation factor Seismic wave Compressibility Fluid dynamics
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/125205
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-125205
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Geofísica Geology Saturation (chemistry) Soil science Attenuation Geotechnical engineering Crust Imbibition Anelastic attenuation factor Seismic wave Compressibility Fluid dynamics
spellingShingle	Geofísica Geology Saturation (chemistry) Soil science Attenuation Geotechnical engineering Crust Imbibition Anelastic attenuation factor Seismic wave Compressibility Fluid dynamics Solazzi, Santiago Gabriel Guarracino, Luis Rubino, J. Germán Müller, Tobias M. Holliger, Klaus Modeling Forced Imbibition Processes and the Associated Seismic Attenuation in Heterogeneous Porous Rocks
topic_facet	Geofísica Geology Saturation (chemistry) Soil science Attenuation Geotechnical engineering Crust Imbibition Anelastic attenuation factor Seismic wave Compressibility Fluid dynamics
description	Quantifying seismic attenuation during laboratory imbibition experiments can provide useful information towards the use of seismic waves for monitoring injection and extraction of fluids in the Earth's crust. However, a deeper understanding of the physical causes producing the observed attenuation is needed for this purpose. In this work, we analyze seismic attenuation due to mesoscopic wave-induced fluid flow (WIFF) produced by realistic fluid distributions representative of imbibition experiments. To do so, we first perform two-phase flow simulations in a heterogeneous rock sample to emulate a forced imbibition experiment. We then select a sub-sample of the considered rock containing the resulting time-dependent saturation fields, and apply a numerical upscaling procedure to compute the associated seismic attenuation. By exploring both saturation distributions and seismic attenuation we observe that two manifestations of WIFF arise during imbibition experiments: the first one is produced by the compressibility contrast associated with the saturation front, whereas the second one is due to the presence of patches containing very high amounts of water that are located behind the saturation front. We demonstrate that while the former process is expected to play a significant role in the case of high injection rates, which are associated with viscous-dominated imbibition processes, the latter becomes predominant during capillary-dominated processes, that is, for relatively low injection rates. We conclude that this kind of joint numerical analysis constitutes a useful tool for improving our understanding of the physical mechanisms producing seismic attenuation during laboratory imbibition experiments.
format	Articulo Articulo
author	Solazzi, Santiago Gabriel Guarracino, Luis Rubino, J. Germán Müller, Tobias M. Holliger, Klaus
author_facet	Solazzi, Santiago Gabriel Guarracino, Luis Rubino, J. Germán Müller, Tobias M. Holliger, Klaus
author_sort	Solazzi, Santiago Gabriel
title	Modeling Forced Imbibition Processes and the Associated Seismic Attenuation in Heterogeneous Porous Rocks
title_short	Modeling Forced Imbibition Processes and the Associated Seismic Attenuation in Heterogeneous Porous Rocks
title_full	Modeling Forced Imbibition Processes and the Associated Seismic Attenuation in Heterogeneous Porous Rocks
title_fullStr	Modeling Forced Imbibition Processes and the Associated Seismic Attenuation in Heterogeneous Porous Rocks
title_full_unstemmed	Modeling Forced Imbibition Processes and the Associated Seismic Attenuation in Heterogeneous Porous Rocks
title_sort	modeling forced imbibition processes and the associated seismic attenuation in heterogeneous porous rocks
publishDate	2017
url	http://sedici.unlp.edu.ar/handle/10915/125205
work_keys_str_mv	AT solazzisantiagogabriel modelingforcedimbibitionprocessesandtheassociatedseismicattenuationinheterogeneousporousrocks AT guarracinoluis modelingforcedimbibitionprocessesandtheassociatedseismicattenuationinheterogeneousporousrocks AT rubinojgerman modelingforcedimbibitionprocessesandtheassociatedseismicattenuationinheterogeneousporousrocks AT mullertobiasm modelingforcedimbibitionprocessesandtheassociatedseismicattenuationinheterogeneousporousrocks AT holligerklaus modelingforcedimbibitionprocessesandtheassociatedseismicattenuationinheterogeneousporousrocks
bdutipo_str	Repositorios
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Modeling Forced Imbibition Processes and the Associated Seismic Attenuation in Heterogeneous Porous Rocks

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