Reconstruction of Rock Composed of Multiple Irregular Minerals and Microcracks Using the Modified Quartet Structure Generation Set Method
Year: 2025
Type: article
Abstract: ABSTRACT In this study, a modified reconstruction method for rock that considers the irregularity of minerals and microcracks was proposed. First, the quartet structure generation set (QSGS) method was modified by establishing two different growth modes of initial growth cores to generate the minerals and microcracks. Then, three‐dimensional (3D) digital rock modeling software was developed based on the modified method, achieving efficient and parametric rock modeling using real rock characteristic parameters. Next, taking granite as an example, a series of digital rock models were reconstructed based on the real characteristic parameters obtained by x‐ray diffraction (XRD) and computed tomography (CT) tests. Finally, the accuracy of the modified method was verified by comparing the fractal dimensions of minerals and microcracks of digital rock models and granite sample. The results show that 3D digital rock modeling software can generate digital rock models with different mineral contents and porosities and that the generation time of the model decreases exponentially as the grid size increases. Meanwhile, the fractal dimensions of minerals and microcracks in the digital rock models are similar to those in the granite sample with acceptable errors of ± 5.0%. In summary, the modified method can reconstruct rock accurately and effectively by considering the irregularity of minerals and microcracks.
DOI: 10.1002/nag.3951
Authors: Peng Guo, Hanyu Chen, Guangyao Li, Lifeng Fan
Institution: Beijing University of Technology
Language: English
Topic: Rock Mechanics and Modeling
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Award: G2554535634
OpenAlex ID: W4407108158