Cao Zhengzheng, Yang Xiangqian, Zhang Peiding, Li Zhenhua, Du Feng, Wang Wenqiang, Chen Huanqi
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Experimental study on the fracture surface morphological characteristics and permeability characteristics of sandstones with different particle sizes
To study the seepage law and sectional morphological characteristics in splitting sandstones of different grain sizes, three-dimensional morphological scanning tests and seepage characteristics tests are conducted on the splitting rock samples of siltstone, fine-, medium- and coarse-grained sandstone, and the differences in morphological characteristics and seepage law in different grain size sandstones are compared and analyzed. The test results show that the sections of siltstone and fine-grained sandstone have the overall morphological characteristics of “one high and one low” with large undulation, while the sections of medium- and coarse-grained sandstone have a more uniform distribution and less undulation. In the relationship between pressure gradient and flow velocity, siltstone and fine-grained sandstone are precisely characterized by the Forchheimer formula, and medium- and coarse-grained sandstone are well characterized by the Izbash formula, and the fitting effect is good. The results of the study are of great reference significance for improving the cross-sectional morphological characteristics and seepage law of the splitting rock samples.
期刊介绍：
Energy Science & Engineering is a peer reviewed, open access journal dedicated to fundamental and applied research on energy and supply and use. Published as a co-operative venture of Wiley and SCI (Society of Chemical Industry), the journal offers authors a fast route to publication and the ability to share their research with the widest possible audience of scientists, professionals and other interested people across the globe. Securing an affordable and low carbon energy supply is a critical challenge of the 21st century and the solutions will require collaboration between scientists and engineers worldwide. This new journal aims to facilitate collaboration and spark innovation in energy research and development. Due to the importance of this topic to society and economic development the journal will give priority to quality research papers that are accessible to a broad readership and discuss sustainable, state-of-the art approaches to shaping the future of energy. This multidisciplinary journal will appeal to all researchers and professionals working in any area of energy in academia, industry or government, including scientists, engineers, consultants, policy-makers, government officials, economists and corporate organisations.
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