Influence of Coal Microstructure on Gas Content of the Face Area

The author study gas content of coal seams in the face areas in mines of SUEK-Kuzbass. It is found that gas content of coal samples from newly exposed face ranges between 2.4 and 13.5 m 3 /t and makes 32–60% of natural gas content of studied seams. The coal seams with lower gas content in face area...

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Bibliographic Details
Published inJournal of mining science Vol. 56; no. 3; pp. 351 - 358
Main Authors Malinnikova, O. N., Ul’yanova, E. V., Kharchenko, A. V., Pashichev, B. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.05.2020
Springer
Springer Nature B.V
Subjects
Coal
Coal mines
Digital imaging
Earth and Environmental Science
Earth Sciences
Entropy
Geomechanics
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Methane
Microstructure
Mineral Resources
Natural gas
Saturation
gas content
methane
face area
informational entropys
microstructure
Coal seam
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Summary:The author study gas content of coal seams in the face areas in mines of SUEK-Kuzbass. It is found that gas content of coal samples from newly exposed face ranges between 2.4 and 13.5 m 3 /t and makes 32–60% of natural gas content of studied seams. The coal seams with lower gas content in face area have more ordered microstructure estimated by mean of plotting entropy–structure complexity diagrams based on thousandfold enlarged digital images of coal surface. Coal seams with more chaotic structural arrangement possess both higher natural gas content and gas saturation in face area.
ISSN:1062-7391
1573-8736
DOI:10.1134/S106273912003683X