Open AccessEffect of cyclic temperature impact on coal seam permeability
Author(s) -
Dengke Wang,
Banghua Yao,
Yanan Gao,
Weirui Li,
Ruihua Lv
Publication year - 2017
Publication title -
thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci17s1351w
Subject(s) - coal , permeability (electromagnetism) , scanning electron microscope , materials science , petroleum engineering , composite material , geology , chemistry , membrane , biochemistry , organic chemistry
The gas permeability of the coal samples, subjected to cyclic temperature impact under different conditions, was considered in the article. Meanwhile, the change of the coal sample permeability and fractures were analyzed through scanning electron microscopy. The obtained results show that the cyclic temperature impact has largely positive effect on the increase of the coal sample permeability and that new fractures and permeability growth increase with the higher temperature difference.
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