Test on gas migration characteristics during coal bed methane exploitation under different lengths of drilling hole in distressed zone

XU Jiang, SU Xiao-peng, PENG Shou-jian, LIU Yi-xin, FENG Dan, LIU Long-rong,

Rock and Soil Mechanics . 2018, (1): 103 -111 . DOI: 10.16285/j.rsm.2016.0081