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dc.contributor.authorMonachesi, Leonardo Bruno-
dc.contributor.authorWollner, Uri-
dc.contributor.authorDvorkin, Jack-
dc.date.accessioned2020-09-10T16:26:41Z-
dc.date.available2020-09-10T16:26:41Z-
dc.date.issued2020-
dc.identifier.citationMonachesi, L.B., Wollner, U. and Dvorkin J., (2020). Effective pore fluid bulkmodulusat patchy saturation: an analytic study. Journal of Geophysical Research - Solid Earth; American Geophysical Union; 125 (1); 1-12es_ES
dc.identifier.issn2169-9356es_ES
dc.identifier.issn2169-9313es_ES
dc.identifier.urihttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019JB018267-
dc.identifier.urihttp://rid.unrn.edu.ar/handle/20.500.12049/5798-
dc.description.abstractA patchy saturated two-layered porous rock, with each layer filled with a different fluid, is examined. We assume that this system is probed by an elastic wave having a wavelength much larger than the layers' thicknesses. We also assume that the diffusion length is smaller than the thickness of an individual layer, which implies hydraulic disconnection between layers. In the context of Gassmann's fluid substitution theory, we analytically derived an exact expression for the effective fluid bulk modulus assuming that both layers have the same porosity, dry frame, and mineral matrix properties. In addition we derived an approximate solution that works well at relatively high porosities. Both solutions are expressed as a weighted average of the arithmetic and harmonic averages of individual bulk moduli of the pore fluid. These weights are explicitly given as functions of the porosity, the fractional thicknesses of both layers, and the elastic moduli of the constituents. For the approximate solution, one does not require explicit knowledge of the shear modulus of the rock. The comparison with laboratory data showed that, in the case where a porous, isotropic rock is filled with water and gas, the approximate solution can be used to model the measured data for high values of water saturation.es_ES
dc.format.extentp. 1-12es_ES
dc.format.mediumdigitales_ES
dc.language.isoenes_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/-
dc.titleEffective Pore Fluid Bulk Modulus at Patchy Saturation: An Analytic Studyes_ES
dc.typeArticuloes_ES
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)-
dc.description.filiationMonachesi, Leonardo. CONICET, Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología; Argentina.es_ES
dc.description.filiationWollner, Uri. Department of Geophysics, Stanford University; USA.es_ES
dc.description.filiationDvorkin, Jack. College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals (KFUPM); Arabia Saudita.es_ES
dc.subject.keywordEffective Porees_ES
dc.subject.keywordFluid Bulk Moduluses_ES
dc.subject.keywordAn Analytic Studyes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaCiencias Exactas y Naturaleses_ES
dc.origin.lugarDesarrolloUniversidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geologíaes_ES
dc.relation.journalissue125 (1)es_ES
dc.description.reviewtruees_ES
dc.description.resumen-es_ES
dc.identifier.doihttps://doi.org/10.1029/2019JB018267-
dc.relation.journalTitleJournal of Geophysical Research - Solid Earthes_ES
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