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dc.contributor.authorSilva, Josimar A.
dc.contributor.authorKang, Peter K.
dc.contributor.authorYang, Zhibing
dc.contributor.authorCueto-Felgueroso Landeira, Luis
dc.contributor.authorJuanes, Ruben
dc.date.accessioned2020-10-28T21:43:14Z
dc.date.available2020-10-28T21:43:14Z
dc.date.issued2019-07
dc.date.submitted2019-05
dc.identifier.issn0094-8276
dc.identifier.issn1944-8007
dc.identifier.urihttps://hdl.handle.net/1721.1/128233
dc.description.abstractWe study, numerically, the behavior of capillary pressure (Pc) during slow immiscible displacement in a rough fracture as a function of the degree of fracture aperture heterogeneity that results from two distinct mechanisms: normal confining stress and fracture surface correlation. We generate synthetic self-affine rough fractures at different correlation scales, solve the elastic contact problem to model the effect of confining stress, and simulate slow immiscible displacement of a wetting fluid by a nonwetting one using a modified invasion percolation model that accounts for in-plane curvature of the fluid-fluid interface. Our modeling results indicate that the power spectral density, S(f), of Pc, can be used to qualitatively characterize fracture aperture heterogeneity. We show that the distribution of forward avalanche sizes follows a power law Nf(Sf) ∝ Sf−α, with exponent α=2, in agreement with previously reported values for porous media and equal to the expected theoretical exponent for a self-organized criticality process.en_US
dc.description.sponsorshipU.S. Department of Energy (Grant DE-SC0018357)en_US
dc.language.isoen
dc.publisherAmerican Geophysical Union (AGU)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1029/2019gl082744en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceMIT web domainen_US
dc.titleImpact of Confining Stress on Capillary Pressure Behavior During Drainage Through Rough Fracturesen_US
dc.typeArticleen_US
dc.identifier.citationSilva, Josimar A. et al. "Impact of Confining Stress on Capillary Pressure Behavior During Drainage Through Rough Fractures." Geophysical Research Letters 46, 13 (July 2019): 7424-7436 © 2019 American Geophysical Unionen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.relation.journalGeophysical Research Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2020-05-27T19:42:35Z
dspace.date.submission2020-05-27T19:42:43Z
mit.journal.volume46en_US
mit.journal.issue13en_US
mit.licensePUBLISHER_POLICY


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