Experimental study of water occurrence in coal under different negative pressure conditions: Implication for CBM productivity during negative pressure drainage

To study water occurrence in coal under different negative pressure conditions, two coals (Coal DF and Coal SH) were conducted with NMR and LP-ArAD experiments. Water exists mainly in adsorption pores in the two saturated coals. When the absolute pressure is slightly lower than 0.1 MPa for coals DF...

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Bibliographic Details
Published in:Energy (Oxford) 2024-09, Vol.303, p.131989, Article 131989
Main Authors: Dang, Zheng, Wang, Xiaoming, Bie, Shizhen, Su, Xianbo, Hou, Shihui
Format: Article
Language:English
Subjects:
adsorption
Coal
Coalbed methane
drainage
energy
liquids
Negative pressure
partial pressure
Pore structure
seepage
vapor pressure
Water occurrence
water vapor
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