Compaction trends of full stiffness tensor and fluid permeability in artificial shales
Published by Oxford University Press on behalf of The Royal Astronomical Society. We present a methodology and describe a set-up that allows simultaneous acquisition of all five elastic coefficients of a transversely isotropic (TI) medium and its permeability in the direction parallel to the symmetr...
| Main Authors: | , , |
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| Format: | Journal Article |
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Blackwell Publishing Ltd
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/66805 |
| _version_ | 1848761397129773056 |
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| author | Beloborodov, Roman Pervukhina, Marina Lebedev, Maxim |
| author_facet | Beloborodov, Roman Pervukhina, Marina Lebedev, Maxim |
| author_sort | Beloborodov, Roman |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Published by Oxford University Press on behalf of The Royal Astronomical Society. We present a methodology and describe a set-up that allows simultaneous acquisition of all five elastic coefficients of a transversely isotropic (TI) medium and its permeability in the direction parallel to the symmetry axis during mechanical compaction experiments. We apply the approach to synthetic shale samples and investigate the role of composition and applied stress on their elastic and transport properties. Compaction trends for the five elastic coefficients that fully characterize TI anisotropy of artificial shales are obtained for a porosity range from 40 per cent to 15 per cent. A linear increase of elastic coefficients with decreasing porosity is observed. The permeability acquired with the pressure-oscillation technique exhibits exponential decrease with decreasing porosity. Strong correlations are observed between an axial fluid permeability and seismic attributes, namely, V P /V S ratio and acoustic impedance, measured in the same direction. These correlations might be used to derive permeability of shales from seismic data given that their mineralogical composition is known. |
| first_indexed | 2025-11-14T10:31:01Z |
| format | Journal Article |
| id | curtin-20.500.11937-66805 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:31:01Z |
| publishDate | 2018 |
| publisher | Blackwell Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-668052018-07-24T00:48:31Z Compaction trends of full stiffness tensor and fluid permeability in artificial shales Beloborodov, Roman Pervukhina, Marina Lebedev, Maxim Published by Oxford University Press on behalf of The Royal Astronomical Society. We present a methodology and describe a set-up that allows simultaneous acquisition of all five elastic coefficients of a transversely isotropic (TI) medium and its permeability in the direction parallel to the symmetry axis during mechanical compaction experiments. We apply the approach to synthetic shale samples and investigate the role of composition and applied stress on their elastic and transport properties. Compaction trends for the five elastic coefficients that fully characterize TI anisotropy of artificial shales are obtained for a porosity range from 40 per cent to 15 per cent. A linear increase of elastic coefficients with decreasing porosity is observed. The permeability acquired with the pressure-oscillation technique exhibits exponential decrease with decreasing porosity. Strong correlations are observed between an axial fluid permeability and seismic attributes, namely, V P /V S ratio and acoustic impedance, measured in the same direction. These correlations might be used to derive permeability of shales from seismic data given that their mineralogical composition is known. 2018 Journal Article http://hdl.handle.net/20.500.11937/66805 10.1093/gji/ggx510 Blackwell Publishing Ltd restricted |
| spellingShingle | Beloborodov, Roman Pervukhina, Marina Lebedev, Maxim Compaction trends of full stiffness tensor and fluid permeability in artificial shales |
| title | Compaction trends of full stiffness tensor and fluid permeability in artificial shales |
| title_full | Compaction trends of full stiffness tensor and fluid permeability in artificial shales |
| title_fullStr | Compaction trends of full stiffness tensor and fluid permeability in artificial shales |
| title_full_unstemmed | Compaction trends of full stiffness tensor and fluid permeability in artificial shales |
| title_short | Compaction trends of full stiffness tensor and fluid permeability in artificial shales |
| title_sort | compaction trends of full stiffness tensor and fluid permeability in artificial shales |
| url | http://hdl.handle.net/20.500.11937/66805 |