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Scientific, Technological and Production Journal
ISSN 2079–3332 (print)
ISSN 3034-6835 (online)
founded in 2001

Assessment of gas-dynamic hazard of coal seams depending on the heterogeneity of coal microstructure

Original articles: 2026 No 3

Assessment of gas-dynamic hazard of coal seams depending on the heterogeneity of coal microstructure

DOI: 10.56195/20793332-2026-26-3-50-55

Read in pdf I. N. Gorshenkov
  1. Institute of Comprehensive Exploitation of Mineral Resources of the Russian Academy of Sciences (ICEMR RAS), Moscow, Russian Federation
p. 50-55, No.3/2026
Abstract:
An approach is proposed for the additional assessment of gas-dynamic hazard of coal seams based on the quantitative characterization of coal microstructure heterogeneity and its correlation with methane content. The study was carried out on coal samples collected from the working face of the Boldyrevsky seam at the S.M. Kirov mine, which exhibited differences in methane release rates under similar mining and geological conditions. The microstructure was analyzed using digital surface micrographs obtained by scanning electron microscopy, and image processing was performed in entropy – complexity coordinates. For the image series, the ranges of Shannon information entropy and statistical complexity were determined and subsequently compared with direct measurements of methane content (Q1, Q2, Q3, QΣ). It is shown that microstructural heterogeneity is associated not only with methane accumulation and retention but also with its release behavior during stress unloading and coal failure. The combination of elevated methane content and a wide range of entropy and complexity values can be considered an additional indicator of potential gas-dynamic hazard. The obtained results confirm that coal microstructure analysis can serve as a supplementary tool for assessing gas-dynamic hazard of coal seams.
Keywords:
coal seam, methane content, coal microstructure, entropy – complexity, electron microscopy, methane filtration and diffusion, Kuzbass
For citation:
Gorshenkov I.N. Assessment of gas-dynamic hazard of coal seams depending on the heterogeneity of coal microstructure. Mine Surveying and Subsurface Use. 2026; 26 (3): 50-55. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-50-55.
Information about the authors:
  1. Ivan N. Gorshenkov – Graduate Student, Institute of Comprehensive Exploitation of Mineral Resources of the Russian Academy of Sciences (ICEMR RAS), Moscow, Russian Federation; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
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