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- W2328698506 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2015Heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation testsAuthors: Stephanie Vialle*Maxim LebedevStephanie Vialle*Department of Exploration Geophysics, Curtin University, Perth, AustraliaSearch for more papers by this author and Maxim LebedevDepartment of Exploration Geophysics, Curtin University, Perth, AustraliaSearch for more papers by this authorhttps://doi.org/10.1190/segam2015-5885016.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract In this study, we used nanoindentation technique to map Young's modulus of microporous limestones at the microscale (map of 300*300 μm2, with a step measurement of 10 μm). Results show a broad distribution of moduli, from very low values to values consistent with calcite mineral. Because the length scale of heterogeneities of the probed areas was larger than the indent size, the samples can be seen as composites of different phases and upscaling rock physics models such as self-consistent approximation can be used to get the effective elastic properties. Scanning Electron Microscopy (SEM) imaging of the same probed areas allowed to correlate micrite microstructure to elastic properties: the more microporous micrites displayed Young's moduli as low as 9 GPa and the tighter ones as high as 64 GPa. Keywords: carbonate, statistical, imaging, heterogeneous, elasticPermalink: https://doi.org/10.1190/segam2015-5885016.1FiguresReferencesRelatedDetailsCited byGeomechanical characterisation of organic-rich calcareous shale using AFM and nanoindentation19 October 2020 | Rock Mechanics and Rock Engineering, Vol. 54, No. 1Application of nanoindentation technology in rocks: a review9 October 2020 | Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol. 6, No. 4Nanoscale rock mechanical property changes in heterogeneous coal after water adsorptionFuel, Vol. 218Change in Geomechanical Properties of Limestone Due to Supercritical CO2 Injection25 October 2016Digital carbonate rock physics4 August 2016 | Solid Earth, Vol. 7, No. 4 SEG Technical Program Expanded Abstracts 2015ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2015 Pages: 5634 publication data© 2015 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 19 Aug 2015 CITATION INFORMATION Stephanie Vialle* and Maxim Lebedev, (2015), Heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation tests, SEG Technical Program Expanded Abstracts : 3279-3284. https://doi.org/10.1190/segam2015-5885016.1 Plain-Language Summary KeywordscarbonatestatisticalimagingheterogeneouselasticPDF DownloadLoading ..." @default.
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