Characterization of diabase core anisotropy: Integrating ultrasonic measurements and digital rock physics
As intricate compositions of diverse materials, hard rock possesses complex mechanical and elastic properties influenced by various factors. In this study, a diabase core was drilled, characterized, measured, and analyzed to investigate the elastic properties of rocks. The research aims to evaluate...
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| Published in | Journal of applied geophysics Vol. 238; p. 105698 |
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| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
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Elsevier B.V
01.07.2025
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| Abstract | As intricate compositions of diverse materials, hard rock possesses complex mechanical and elastic properties influenced by various factors. In this study, a diabase core was drilled, characterized, measured, and analyzed to investigate the elastic properties of rocks. The research aims to evaluate these properties using dynamic and static methods, employing ultrasonic measurements and digital rock physics. The sample underwent mineralogical analysis through thin sections. Comparatively, micro-CT scanning was employed to explore potential layering and fractures that might impact the anisotropy of acoustic wave propagation, as observed in digital images. The digital image reveals the presence of high-density minerals, particularly Clinopyroxene, extending along the z-axis. The static and dynamic elastic moduli suggest that the sample exhibits isotropic characteristics. However, variations in anisotropy coefficient values for Vp and Vs are noted, likely stemming from high-density sheet-like minerals. While both static and dynamic methods produce elastic moduli and velocities within the typical range for diabase rock, notable differences are apparent, possibly due to disparities in the physical techniques utilized.
•A diabase rock is cored from subsurface and characterized using petrophysics.•The ultrasonic measurement of compressional and shear wave velocity for anisotropy and elastic properties calculation.•3D scanning was carried out to obtain digital rock images using micro-CT scan.•The effective elastic properties and anisotropy from digital rock core is calculated.•The difference between dynamic and static elastic properties, velocity, and anisotropy of the diabase rock is analyzed. |
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| AbstractList | As intricate compositions of diverse materials, hard rock possesses complex mechanical and elastic properties influenced by various factors. In this study, a diabase core was drilled, characterized, measured, and analyzed to investigate the elastic properties of rocks. The research aims to evaluate these properties using dynamic and static methods, employing ultrasonic measurements and digital rock physics. The sample underwent mineralogical analysis through thin sections. Comparatively, micro-CT scanning was employed to explore potential layering and fractures that might impact the anisotropy of acoustic wave propagation, as observed in digital images. The digital image reveals the presence of high-density minerals, particularly Clinopyroxene, extending along the z-axis. The static and dynamic elastic moduli suggest that the sample exhibits isotropic characteristics. However, variations in anisotropy coefficient values for Vp and Vs are noted, likely stemming from high-density sheet-like minerals. While both static and dynamic methods produce elastic moduli and velocities within the typical range for diabase rock, notable differences are apparent, possibly due to disparities in the physical techniques utilized.
•A diabase rock is cored from subsurface and characterized using petrophysics.•The ultrasonic measurement of compressional and shear wave velocity for anisotropy and elastic properties calculation.•3D scanning was carried out to obtain digital rock images using micro-CT scan.•The effective elastic properties and anisotropy from digital rock core is calculated.•The difference between dynamic and static elastic properties, velocity, and anisotropy of the diabase rock is analyzed. |
| ArticleNumber | 105698 |
| Author | Latief, Fourier Dzar Eljabbar Setiawan, Muhamad Ragil Fatkhan Fauzi, Umar |
| Author_xml | – sequence: 1 givenname: Muhamad Ragil surname: Setiawan fullname: Setiawan, Muhamad Ragil email: ragil.setiawan@fi.itera.ac.id organization: Physics of Earth and Complex Systems, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Indonesia – sequence: 2 surname: Fatkhan fullname: Fatkhan organization: Geophysical Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Indonesia – sequence: 3 givenname: Fourier Dzar Eljabbar surname: Latief fullname: Latief, Fourier Dzar Eljabbar organization: Physics of Earth and Complex Systems, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Indonesia – sequence: 4 givenname: Umar surname: Fauzi fullname: Fauzi, Umar organization: Physics of Earth and Complex Systems, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Indonesia |
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| Cites_doi | 10.1190/geo2010-0352.1 10.1046/j.0956-540X.2000.01280.x 10.1016/j.tecto.2020.228336 10.1016/j.geothermics.2020.101974 10.1016/j.jappgeo.2016.08.014 10.1029/JB078i032p07623 10.3389/feart.2021.628544 10.1029/95JB00259 10.1121/1.4733545 10.1016/j.ijrmms.2006.04.011 10.1093/gji/ggz011 10.1139/e69-056 10.3389/feart.2021.641606 10.1007/s10040-021-02339-7 10.1016/j.egyr.2020.12.039 10.1190/geo2023-0163.1 10.1016/j.cageo.2012.09.005 10.1071/EG17129 10.1029/JZ065i004p01083 10.1190/1.1438217 10.1155/2015/576080 10.1016/j.geothermics.2021.102065 |
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| SubjectTerms | Digital rock physics Elastic properties Hard rock Ultrasonic measurements |
| Title | Characterization of diabase core anisotropy: Integrating ultrasonic measurements and digital rock physics |
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