Multi-scale pore fractal characteristics of differently ranked coal and its impact on gas adsorption

• Published in: International journal of mining science and technology Vol. 33; no. 4; pp. 389 - 401
• Main Authors: Li, Zhongbei, Ren, Ting, Li, Xiangchun, Qiao, Ming, Yang, Xiaohan, Tan, Lihai, Nie, Baisheng
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2023; Elsevier
• Subjects: Coalbed gas adsorption; Differently ranked coal; Fractal characteristics; Fractal theory; Multi-scale pore structure; Fractal theory; Differently ranked coal; Fractal characteristics; Multi-scale pore structure; Coalbed gas adsorption

Well-developed pores and cracks in coal reservoirs are the main venues for gas storage and migration. To investigate the multi-scale pore fractal characteristics, six coal samples of different rankings were studied using high-pressure mercury injection (HPMI), low-pressure nitrogen adsorption (LPGA-...