Heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation tests
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...
| Main Authors: | , |
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| Format: | Conference Paper |
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Society of Exploration Geophysicists
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/42501 |
| _version_ | 1848756436968931328 |
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| author | Vialle, Stephanie Lebedev, Maxim |
| author_facet | Vialle, Stephanie Lebedev, Maxim |
| author_sort | Vialle, Stephanie |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T09:12:11Z |
| format | Conference Paper |
| id | curtin-20.500.11937-42501 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:12:11Z |
| publishDate | 2015 |
| publisher | Society of Exploration Geophysicists |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-425012018-12-14T00:50:42Z Heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation tests Vialle, Stephanie Lebedev, Maxim 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. 2015 Conference Paper http://hdl.handle.net/20.500.11937/42501 10.1190/segam2015-5885016.1 Society of Exploration Geophysicists restricted |
| spellingShingle | Vialle, Stephanie Lebedev, Maxim Heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation tests |
| title | Heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation tests |
| title_full | Heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation tests |
| title_fullStr | Heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation tests |
| title_full_unstemmed | Heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation tests |
| title_short | Heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation tests |
| title_sort | heterogeneities in the elastic properties of microporous carbonate rocks at the microscale from nanoindentation tests |
| url | http://hdl.handle.net/20.500.11937/42501 |