Water saturation characteristics of coal of different ranks and its effect on capillary pressure
Zhongqiu Liang,
Chuanjie Zhu,
Xiaozhe Zhang
et al.
Abstract:Saturation characteristics of water and capillary pressure are important for hydrofracturing or water flooding, which is widely adopted in dust suppression, methane displacement, and gas and coal outburst elimination. In this paper, we have studied the water saturation characteristics of coal samples with different coal ranks and their effect on capillary pressure. It was found that the isothermal adsorption of water vapor from coal samples can be divided into three processes: monolayer adsorption, multilayer … Show more
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