Wave velocity prediction based on anisotropic SCA and Eshelby-Cheng model

Haifeng Gao; Weihong Wang; Ziqi Jin

doi:10.1117/12.3019674

23 January 2024 Wave velocity prediction based on anisotropic SCA and Eshelby-Cheng model

Haifeng Gao, Weihong Wang, Ziqi Jin

Proceedings Volume 12978, Fourth International Conference on Geology, Mapping, and Remote Sensing (ICGMRS 2023); 129781E (2024) https://doi.org/10.1117/12.3019674
Event: 2023 4th International Conference on Geology, Mapping and Remote Sensing (ICGMRS 2023), 2023, wuhan, China

Abstract

Fractured reservoirs have become the main research object of oil and gas exploration and development. It has become a practical research object to establish a rock physical model for anisotropy caused by fractures. Combined with anisotropic SCA model and Eshelby-Cheng model, a rock physical model is established to predict the velocity of the longitudinal and transverse waves. The physical property parameters of minerals are obtained by logging data, and the elastic modulus of rock matrix is calculated based on V-R-H model. Then the elastic modulus of dry rock skeleton is calculated by the anisotropic SCA model. Finally, Eshelby-Cheng model is used to obtain the elastic modulus of saturated rock and predict the velocity of rock wave. The comparison and analysis of the obtained P and S wave velocities with the actual data shows that The longitudinal and shear wave velocities of saturated rock calculated by the rock physical model are in good agreement with the actual data, which conforms to the actual geological conditions, and proves that the method is reliable and effective.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Haifeng Gao, Weihong Wang, and Ziqi Jin "Wave velocity prediction based on anisotropic SCA and Eshelby-Cheng model", Proc. SPIE 12978, Fourth International Conference on Geology, Mapping, and Remote Sensing (ICGMRS 2023), 129781E (23 January 2024); https://doi.org/10.1117/12.3019674

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