Changes in the petrophysical properties of coal subjected to liquid nitrogen freeze-thaw - A nuclear magnetic resonance investigation

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• 作者：Lei Qin^a ; ^b ; Cheng Zhai^a ; ^b ; ^{greatzc@cumt.edu.cn} ; Shimin Liu^c ; Jizhao Xu^a ; ^b ; Guoqing Yu^a ; ^b ; Yong Sun^a ; ^b
• 关键词：Freeze-thaw ; Liquid nitrogen ; Porosity ; Permeability ; Nuclear magnetic resonance ; Coal bed methane
• 刊名：Fuel
• 出版年：2017
• 出版时间：15 April 2017
• 年：2017
• 卷：194
• 期：Complete
• 页码：102-114
• 全文大小：3241 K
• 卷排序：194

文摘

NMR was used to explore the petrophysical properties of frozen-thawed coal. Freeze-thaw cycles had the most significant effect on petrophysical properties. The modification on different coal ranks was affected by coal’s initial porosity.