1Research on exploitation and volume estimation of underground space in coal minesXIE Heping, GAO Mingzhong, LIU Jianzhong, ZHOU Hongwei, ZHANG Ruixin, CHEN Peipei, LIU Zhiqiang, ZHANG Anlin1487-15032Frontier research of geological technology for coal measure gas joint-miningQIN Yong, WU Jianguang, SHEN Jian, YANG Zhaobiao, SHEN Yulin, ZHANG Bing1504-15163Symbiotic accumulation characteristics of coal measure gas in Linxing Block, eastern Ordos BasinZHONG Jianhua, LIU Chuang, WU Jianguang, ZHANG Shouren, YANG Guanqun1517-15254Structural and thermal control of enrichment conditions of coal measure gases in Linxing block of eastern Ordos BasinCAO Daiyong, NIE Jing, WANG Anmin, ZHANG Shouren, ZHANG Bing1526-15325Co-accumulating mechanisms of unconventional gas in the coal measure of the Qinshui BasinLI Jun, ZHANG Dingyu, LI Dahua, TANG Shuheng, ZHANG Songhang1533-15466Amount of adsorbed gas in deep coal reservoir based on adsorption potential theoryWANG Yanbin, TAO Chuanqi, NI Xiaoming, GAO Xiangdong, HE Yunchao1547-15527Reservoir formation characteristics as well as co-exploration and co-mining orientation of Upper Permian coal-bearing gas in Liupanshui CoalfieldYI Tongsheng, GAO Wei1553-15648Geological models and structural controls of tectonically deformed coal in Tucheng syncline, western Guizhou ProvinceLI Ming, JIANG Bo, LIU Jiegang, ZHU Peng, CHENG Guoxi1565-15719Discussion on the model of enrichment and high yield of deep coalbed methane in Yanchuannan area at Southeastern Ordos BasinCHEN Gang, HU Zongquan1572-157910Fractal characteristics of the Longtan formation transitional shale in northwest GuizhouZHANG Peng, HUANG Yuqi, ZHANG Jinchuan, LIU Hognyang, YANG Junwei1580-158811Accumulation and combination characteristics of coal measure gas of Shaoyang depression in the central HunanXI Zhaodong, TANG Shuheng, YANG Guoqiao, LI Lei, GONG Minghui, WANG Keying, ZHANG Baomin1589-159712Dynamic assessment of coalbed methane resources and availability in ChinaZHANG Daoyong, ZHU Jie, ZHAO Xianliang, GAO Xuan, GENG Meng, CHEN Gang, JIAO Jian, LIU Sitong1598-160413Seismic facies controlled inversion and CBM sweet spot prediction in deep coal seam of Yushe Wuxiang block in Qinshui BasinTIAN Zhongbin, DONG Yinping, WANG Jianqing, HUANG Handong1605-161314Superimposing gas-bearing system in coal measures and its compatibility in Linxing block, east Ordos BasinSHEN Jian, QIN Yong, ZHANG Bing, LI Guozhang, SHEN Yulin1614-161915Optimization technology of efficient CBM productivity areas in Qinnanxi-Mabidong Block, Qinshui Basin, Shanxi, ChinaYANG Yanhui, WANG Yuting, CHEN Longwei, WANG Xiaoxuan, LIU Chunli, ZHAGN Chen, FAN Hongming1620-162616Discussion of the selection for producing layers of deep CBM wells in Linfen BlockHUANG Hongxing, NIE Zhihong, CHAO Haiyan, CHEN Dong, ZHAO Zengping, LIU Ying1627-163317Gas analysis of deep coalbed methane and its geological model for development in Linxing BlockGAO Lijun, XIE Yinggang, PAN Xinzhi, PANG Jiandong, ZHOU Longgang1634-164018Production layer combination selection for coalbed methane development in multi-coal seams based on cluster analysisYANG Zhaobiao, QIN Yong, ZHANG Zhengguang, SUN Hansen, LI Yangyang, WU Congcong1641-164619Construction of index system of "Hierarchical progressive" geological selection of coalbed methane in multiple seam area of eastern Yunnan and western GuizhouWU Caifang, LIU Xiaolei, ZHANG Shasha1647-165320Evaluation index system for the Permo-Carboniferous mud shale reservoirs of coal measures in Shanxi ProvinceFU Xuehai, ZHANG Miao, ZHANG Qinghui, ZHU Yanming, GUO Yinghai1654-1660 