A novel anisotropy template for an improved interpretation of elastic anisotropy data
Abstract Tight unconventional rocks are characterized by the presence of laminations, preferentially oriented cracks, and an interconnected network of compliant minerals. Such anisotropic features can mechanically deform due to pressure depletion during production, leading to a human-induced change...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-43271-y |
| _version_ | 1797560070474563584 |
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| author | Gama Firdaus Manika Prasad Jyoti Behura |
| author_facet | Gama Firdaus Manika Prasad Jyoti Behura |
| author_sort | Gama Firdaus |
| collection | DOAJ |
| description | Abstract Tight unconventional rocks are characterized by the presence of laminations, preferentially oriented cracks, and an interconnected network of compliant minerals. Such anisotropic features can mechanically deform due to pressure depletion during production, leading to a human-induced change of elastic and fluid transport properties. Rock physics models allow us to better predict and assess stress- and direction-dependent elastic moduli of the rock, useful for horizontal stress estimates. However, elastic anisotropy can be challenging to measure and interpret. We have developed an anisotropy template that can be used to assess stress-dependent changes in elastic moduli and investigate rock textures. We present here the template construction using an effective medium model consisting of stiff and compliant layers and crack inclusions and evaluate the origin of stress-dependent stiffness changes in acoustic data from Berea, Bakken, Three Forks, and Mancos formations. |
| first_indexed | 2024-03-10T17:54:12Z |
| format | Article |
| id | doaj.art-c4b238d1148a4afe83ade5606d42dcbf |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-10T17:54:12Z |
| publishDate | 2023-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-c4b238d1148a4afe83ade5606d42dcbf2023-11-20T09:15:49ZengNature PortfolioScientific Reports2045-23222023-09-0113111010.1038/s41598-023-43271-yA novel anisotropy template for an improved interpretation of elastic anisotropy dataGama Firdaus0Manika Prasad1Jyoti Behura2Center for Rock & Fluid Multiphysics, Colorado School of MinesCenter for Rock & Fluid Multiphysics, Colorado School of MinesCenter for Rock & Fluid Multiphysics, Colorado School of MinesAbstract Tight unconventional rocks are characterized by the presence of laminations, preferentially oriented cracks, and an interconnected network of compliant minerals. Such anisotropic features can mechanically deform due to pressure depletion during production, leading to a human-induced change of elastic and fluid transport properties. Rock physics models allow us to better predict and assess stress- and direction-dependent elastic moduli of the rock, useful for horizontal stress estimates. However, elastic anisotropy can be challenging to measure and interpret. We have developed an anisotropy template that can be used to assess stress-dependent changes in elastic moduli and investigate rock textures. We present here the template construction using an effective medium model consisting of stiff and compliant layers and crack inclusions and evaluate the origin of stress-dependent stiffness changes in acoustic data from Berea, Bakken, Three Forks, and Mancos formations.https://doi.org/10.1038/s41598-023-43271-y |
| spellingShingle | Gama Firdaus Manika Prasad Jyoti Behura A novel anisotropy template for an improved interpretation of elastic anisotropy data Scientific Reports |
| title | A novel anisotropy template for an improved interpretation of elastic anisotropy data |
| title_full | A novel anisotropy template for an improved interpretation of elastic anisotropy data |
| title_fullStr | A novel anisotropy template for an improved interpretation of elastic anisotropy data |
| title_full_unstemmed | A novel anisotropy template for an improved interpretation of elastic anisotropy data |
| title_short | A novel anisotropy template for an improved interpretation of elastic anisotropy data |
| title_sort | novel anisotropy template for an improved interpretation of elastic anisotropy data |
| url | https://doi.org/10.1038/s41598-023-43271-y |
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