Saturation dependence of the streaming potential coefficient

Observations of streaming potential for unsaturated conditions do not always show the same trend de10 pending on the hydrodynamic conditions and because of a lake of coherency between the data processing procedures. We combine the data from three studies published in the literature, acquired during...

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Autores principales: Jouniaux, Laurence, Allègre, Vincent, Toussaint, Renaud, Zyserman, Fabio Iván, Grobbe, Niels, Revil, André, Zhu, Zhenya, Slob, Evert
Formato: Libro Capitulo de libro
Lenguaje:Inglés
Publicado: Advancing Earth and Space Science (AGU) 2020
Materias:
Geofísica
Saturation (chemistry)
Materials science
Condensed matter physics
Electrokinetic phenomena
Streaming current
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127034
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-127034
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geofísica
Saturation (chemistry)
Materials science
Condensed matter physics
Electrokinetic phenomena
Streaming current
spellingShingle Geofísica
Saturation (chemistry)
Materials science
Condensed matter physics
Electrokinetic phenomena
Streaming current
Jouniaux, Laurence
Allègre, Vincent
Toussaint, Renaud
Zyserman, Fabio Iván
Grobbe, Niels
Revil, André
Zhu, Zhenya
Slob, Evert
Saturation dependence of the streaming potential coefficient
topic_facet Geofísica
Saturation (chemistry)
Materials science
Condensed matter physics
Electrokinetic phenomena
Streaming current
description Observations of streaming potential for unsaturated conditions do not always show the same trend de10 pending on the hydrodynamic conditions and because of a lake of coherency between the data processing procedures. We combine the data from three studies published in the literature, acquired during non-steady state drainage experiments, and apply the same processing steps. We model the hydrodynamic behaviour of these experiments to confirm that they experienced different flow dynamics. We argue that the raw SP data should not be corrected unless a clear drift of the electrodes stability is observed. The combined hydrody namic behaviour and the streaming potential response show that (a) the observations of one of the experiment (exp #1) are associated to a limited range of water saturation (0.85-1). The corresponding signals could therefore be fairly modelled assuming no saturation dependence of the SPC whatsoever; (b) the observations of exp #3 led to a SPC that can be larger than its value at saturation; (c) the observations of the exp #2 show a non-monotonous behaviour of the SPC as saturation decreases. The underlying physics of a non-monotonous SPC is related to water/air interfaces as shown by the results of the lattice Boltzmann numerical simulations. The main contribution to the SPC behaviour comes from the charged water/air interfaces and depends on the dynamic state of moving or entrapped bubbles. We finally describe the consequences of such a behaviour on the seismoelectric conversions for unsaturated conditions.
format Libro
Capitulo de libro
author Jouniaux, Laurence
Allègre, Vincent
Toussaint, Renaud
Zyserman, Fabio Iván
Grobbe, Niels
Revil, André
Zhu, Zhenya
Slob, Evert
author_facet Jouniaux, Laurence
Allègre, Vincent
Toussaint, Renaud
Zyserman, Fabio Iván
Grobbe, Niels
Revil, André
Zhu, Zhenya
Slob, Evert
author_sort Jouniaux, Laurence
title Saturation dependence of the streaming potential coefficient
title_short Saturation dependence of the streaming potential coefficient
title_full Saturation dependence of the streaming potential coefficient
title_fullStr Saturation dependence of the streaming potential coefficient
title_full_unstemmed Saturation dependence of the streaming potential coefficient
title_sort saturation dependence of the streaming potential coefficient
publisher Advancing Earth and Space Science (AGU)
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/127034
work_keys_str_mv AT jouniauxlaurence saturationdependenceofthestreamingpotentialcoefficient
AT allegrevincent saturationdependenceofthestreamingpotentialcoefficient
AT toussaintrenaud saturationdependenceofthestreamingpotentialcoefficient
AT zysermanfabioivan saturationdependenceofthestreamingpotentialcoefficient
AT grobbeniels saturationdependenceofthestreamingpotentialcoefficient
AT revilandre saturationdependenceofthestreamingpotentialcoefficient
AT zhuzhenya saturationdependenceofthestreamingpotentialcoefficient
AT slobevert saturationdependenceofthestreamingpotentialcoefficient
bdutipo_str Repositorios
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