What question did this study set out to answer?

To analyze the pore structure, fractal characteristics, and their controlling factors in marine shales from the Niutitang Formation to assess gas adsorption capacity.

January 17, 2025Fractal and FractionalOpen Access

Pore Structure and Its Fractal Dimension: A Case Study of the Marine Shales of the Niutitang Formation in Northwest Hunan, South China

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Authors

WJWei Jiang YZYang Zhang TMTianran Ma

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Overview

Experimental analysis reveals complex pore structures and fractal dimensions in marine shales, indicating that fractal metrics can effectively evaluate shale gas reservoir capacity.

Key Points

To analyze the pore structure, fractal characteristics, and their controlling factors in marine shales from the Niutitang Formation to assess gas adsorption capacity.
Characterized marine shale samples using total organic carbon (TOC) analysis, field emission scanning electron microscopy (FESEM), and X-ray diffraction (XRD).
Conducted low-temperature nitrogen gas adsorption (LT-N2GA) and methane adsorption experiments, calculating pore surface and pore space fractal dimensions using the FHH and XS models.
Identified four distinct pore types (organic, intragranular, intergranular, and microcracks), dominated by mesopores with rougher surfaces and greater structural complexity occurring in larger pores (D2 and Df > D1).
Observed positive correlations between fractal dimensions and pore volume, specific surface area, TOC, and pyrite content, while average pore size and clay mineral content showed negative correlations.
Demonstrated that fractal dimensions correlate positively with Langmuir volume, confirming their utility as quantitative targets for evaluating shale gas reservoir storage capacity.

Cite This Study

Jiang et al. (2025) studied this question.

synapsesocial.com/papers/6a6f4a53ac440176ef27fe11 https://doi.org/10.3390/fractalfract9010049

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January 17, 2025Fractal and FractionalOpen Access

Pore Structure and Its Fractal Dimension: A Case Study of the Marine Shales of the Niutitang Formation in Northwest Hunan, South China

View Full Paper

Ask AI

Bookmark

Authors

WJWei Jiang YZYang Zhang TMTianran Ma

Discussion

Member takes

Overview

Experimental analysis reveals complex pore structures and fractal dimensions in marine shales, indicating that fractal metrics can effectively evaluate shale gas reservoir capacity.

Key Points

To analyze the pore structure, fractal characteristics, and their controlling factors in marine shales from the Niutitang Formation to assess gas adsorption capacity.
Characterized marine shale samples using total organic carbon (TOC) analysis, field emission scanning electron microscopy (FESEM), and X-ray diffraction (XRD).
Conducted low-temperature nitrogen gas adsorption (LT-N2GA) and methane adsorption experiments, calculating pore surface and pore space fractal dimensions using the FHH and XS models.
Identified four distinct pore types (organic, intragranular, intergranular, and microcracks), dominated by mesopores with rougher surfaces and greater structural complexity occurring in larger pores (D2 and Df > D1).
Observed positive correlations between fractal dimensions and pore volume, specific surface area, TOC, and pyrite content, while average pore size and clay mineral content showed negative correlations.
Demonstrated that fractal dimensions correlate positively with Langmuir volume, confirming their utility as quantitative targets for evaluating shale gas reservoir storage capacity.

Cite This Study

Jiang et al. (2025) studied this question.

synapsesocial.com/papers/6a6f4a53ac440176ef27fe11 https://doi.org/10.3390/fractalfract9010049

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