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YuxinIndustry Prospects47-595Value and development direction of efficient development of coal-measure natural gas in energy transitionLI Rui, XIANG Wenting, XU Fengyin, XIAO Yuhang, LYU Shuaifeng, ZHANG Xiaofei, ZHANG Le, YANG BaokeIndustry Prospects60-726Characteristics of occurrence and distribution rule of deep coalbed methane in supercritical stateZHOU Lihong, YAN Xia, XIONG Xianyue, WANG Feng, LIU Wenchao, YANG Yuejie, YANG Zhaobiao, FENG YanqingGeological Theory Advances73-907Occurrence phase and gas-bearing evolution of deep coalbed methaneTANG Shuheng, XI Zhaodong, ZHANG Songhang, SUN Fenjin, DUAN Lijiang, TIAN Wenguang, WANG MeizhuGeological Theory Advances91-1008Formation model and special significance of helium-rich coalbed methane reservoirs in Mu'ai Block,JunlianYANG Zhaobiao, GU Junyu, FU Xuehai, TIAN Wenguang, BI Caiqin, HAN Yongsheng, LIANG Yuhui, ZHANG BaoxinGeological Theory Advances101-1149Pore development patterns and gas control effects of No.8 deep coal seam of 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