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dc.contributor.author
Thompson, A. H.
dc.contributor.author
Monachesi, Leonardo Bruno
dc.contributor.author
Zyserman, Fabio Ivan
dc.contributor.author
Jouniaux, L.
dc.date.available
2024-01-09T18:00:48Z
dc.date.issued
2023-02
dc.identifier.citation
Thompson, A. H.; Monachesi, Leonardo Bruno; Zyserman, Fabio Ivan; Jouniaux, L.; Enhanced electroseismic coupling at charged interfaces; Society of Exploration Geophysicists; Geophysics; 88; 3; 2-2023; 105-115
dc.identifier.issn
0016-8033
dc.identifier.uri
http://hdl.handle.net/11336/223091
dc.description.abstract
Published field-scale studies of electroseismic (ES) surveying have detected harmonics of the source frequency in the recorded seismic signal. At the time the data were collected, the cause of these high frequencies was unknown. We have found that electric fields applied to lithologic interfaces create harmonics of the source frequency. At these interfaces, there are gradients in ionic concentrations in pore fluids and in situ electric fields associated with gradients in the electrochemical (EC) potential. When an electric field is applied to the junction in the direction of the internal field, the internal voltage gradient decreases and the resistivity decreases. When the applied field opposes the internal field, the internal field increases and the resistivity is high. Harmonics of the applied AC field occur when the amplitude of the applied electric field is comparable to the internal field. We use the sandstone/limestone interface as an illustrative example. An analytical model of rock interfaces predicts the wavelet response to an applied field. The theoretically predicted signal characteristics agree with the laboratory data. The model predicts that the distortion of the electric field induces strains on the rock matrix that are qualitatively similar to field measurements of the ES conversion. The estimated response from an EC junction is substantially larger than the electrokinetic conversion associated with the displacement of the pore-surface dipole layers.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Society of Exploration Geophysicists
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ROCK PHYSICS
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ELECTROMAGNETICS
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FIELD EXPERIMENTS
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POLARIZATION
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Geoquímica y Geofísica
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Enhanced electroseismic coupling at charged interfaces
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-01-09T10:12:32Z
dc.journal.volume
88
dc.journal.number
3
dc.journal.pagination
105-115
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Tulsa
dc.description.fil
Fil: Thompson, A. H.. Investigador Independiente; Estados Unidos
dc.description.fil
Fil: Monachesi, Leonardo Bruno. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
dc.description.fil
Fil: Zyserman, Fabio Ivan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Departamento de Geofísica Aplicada; Argentina
dc.description.fil
Fil: Jouniaux, L.. Université de Strasbourg; Francia
dc.journal.title
Geophysics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/geophysics/article/88/3/MR105/622246/Enhanced-electroseismic-coupling-at-charged
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1190/geo2021-0761.1
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