What question did this study set out to answer?

This research focuses on understanding the fractal characteristics of pore structures in Longmaxi Formation shale and the impact of lithofacies on these properties.

June 20, 2026Fractal and FractionalOpen Access

Fractal Characteristics and Controlling Factors of Pore Structure in Different Lithofacies of Longmaxi Formation Shale

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Authors

YSYi SunMinzu University of China XHXingyu HuChina Three Gorges University MLMengdi LiuMinzu University of China

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Implication

Randomized trial investigates pore structure characteristics in various shale lithofacies, implying mineral composition affects reservoir heterogeneity.

Key Points

This research focuses on understanding the fractal characteristics of pore structures in Longmaxi Formation shale and the impact of lithofacies on these properties.
Examined 48 shale samples from the Longmaxi Formation using total organic carbon, X-ray diffraction, and low-pressure N2 adsorption analyses.
Classified shale into three lithofacies: clayey shale, mixed shale, and felsic shale.
Analyzed hysteresis loops in N2 adsorption–desorption isotherms and evaluated ln(V) versus ln(ln(P0/P)) for dual fractal dimensions.
Fractal dimensions for small pores (Df1 = 2.75–2.87) are higher than for large pores (Df2 = 2.01–2.39), indicating greater complexity in micropore–mesopore systems.
Felsic shale shows the highest fractal dimensions, followed by mixed shale and clayey shale.
Fractal dimensions positively correlate with total organic carbon and pyrite content, while negatively correlating with quartz and carbonate minerals.

Cite This Study

Sun et al. (2026) studied this question.

synapsesocial.com/papers/6a363274db0793dc1a5390a4 https://doi.org/10.3390/fractalfract10060416

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Implication

Randomized trial investigates pore structure characteristics in various shale lithofacies, implying mineral composition affects reservoir heterogeneity.

Fractal Characteristics and Controlling Factors of Pore Structure in Different Lithofacies of Longmaxi Formation Shale

Discussion

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Implication

Key Points

Cite This Study

Fractal Characteristics and Controlling Factors of Pore Structure in Different Lithofacies of Longmaxi Formation Shale

Discussion

Member takes

Implication

Key Points

Cite This Study

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