Division of Different Drainage and Production Stages of Medium-rank Coalbed Methane Wells and the Change in Permeability
XIA Peng, ZENG Fangui, WU Jing, WANG Jin, FENG Shaosheng
西南石油大学学报(自然科学版) . 2018, (6): 115 -123 .  DOI: 10.11885/j.issn.1674-5086.2017.05.08.01