Gas sorption and flow capabilities of lignite, subbituminous and high-volatile bituminous coals in the Southern Junggar Basin, NW China
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- 作者：Sandong Zhou ; Dameng Liu ; dmliu@cugb.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Yidong Cai ; Yanbin Yao
- 关键词：Adsorption ; Flow ; Coalbed methane (CBM) ; Pore-fracture ; Junggar Basin
- 刊名：Journal of Natural Gas Science and Engineering
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：34
- 期：Complete
- 页码：6-21
- 全文大小：5367 K
文摘
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A full-scale approach to characterize PS/VD in LSBC was investigated.
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CH4 is concentrated on adsorbing at pore surfaces in 2–10 nm and 10–50 nm.
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Gas flow ability increases with rising micro-fractures.
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Coal with T2c > 5 ms and high seepage pore peak generally exhibits high permeability.
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Pore-fractures permeability is controlled by the area of the T2 (>2.5 ms) distribution.
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