Abstract
Electrical and acoustic properties are significant petrophysical properties. This paper presents a comprehensive investigation of the effects of minerals and pores on electrical and elastic properties based on the multimineral and multiscale digital rocks. A novel hybrid modeling method, which combines X-ray CT scanning technique (XRCTST) and quartet structure generation set method (QSGSM), was proposed to construct multimineral and multiscale digital cores. In order to analyze the impact factors of electrical and acoustic properties, a number of synthetic digital rocks with various volume fractions of minerals and pores were constructed. By comparing the resistivity and elastic moduli of all models, it is concluded that the volume fractions of clay minerals and pores have greater effects on the electrical and acoustic properties, while quartz, feldspar, and calcite only have slight impacts on the elastic parameters and no effect on the electrical property.
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