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Progress and insights from worldwide deep coalbed methane exploration and development
ZHANG Jiaqi, LIU Zengqin, SHEN Baojian, ZHAO Shihu, CHEN Xinjun, YE Jincheng
2025, 47(1): 1-8. DOI: 10.11781/sysydz2025010001
Abstract
Current status and development trends of deep coalbed methane research in China
JU Wei, TAO Shu, YANG Zhaobiao, CHENG Jiayao, SHANG Haiyan, NING Weike, WU Chunlong
2025, 47(1): 9-16. DOI: 10.11781/sysydz2025010009
Abstract
Geological characteristics of deep coal rock and main geological factors controlling coalbed methane enrichment: a case study of the M area in the eastern Ordos Basin
GUO Xiaojiao, WANG Lei, YAO Xianzhou, LI Xu, ZHANG Linke, WANG Xiaoshuang
2025, 47(1): 17-26. DOI: 10.11781/sysydz2025010017
Abstract
Evaluation method and application for in-situ stress in No. 8+9 coal seam, southern Shenfu block, northeastern margin of Ordos Basin
WU Jiawei, TANG Wei, ZHU Yanhe, WANG Cunwu, TIAN Yongjing, ZI Jingyu, YANG Jianghao, SHI Xian
2025, 47(1): 27-42. DOI: 10.11781/sysydz2025010027
Abstract
Main controlling factors of production and reasonable fracturing scale optimization of deep coalbed methane wells in Shenfu block, Ordos Basin
SUN Lichun, LIU Jia, LI Na, LI Xinze, WEN Heng
2025, 47(1): 43-53. DOI: 10.11781/sysydz2025010043
Abstract
Storage and permeation space development characteristics and water production capacity evaluation of deep coal reservoirs in Linxing-Shenfu area of Ordos Basin
WANG Jinwei, XU Hao, LIU Yinan, ZHANG Bing, XU Yanyong, LIU Ding, ZONG Peng, WANG Yajuan, SONG Xuejing
2025, 47(1): 54-63. DOI: 10.11781/sysydz2025010054
Abstract
Geological characteristics and main enrichment controlling factors of coalbed methane in Nanchuan area, southeastern Sichuan Basin
HE Xipeng, WANG Kaiming, LUO Wei, GAO Yuqiao, LIU Nana, GUO Tao, ZHOU Yatong, WU Didi
2025, 47(1): 64-76. DOI: 10.11781/sysydz2025010064
Abstract
Compressibility characteristics and modification effect of coal reservoirs in Longtan Formation, Nanchuan area, southeast Chongqing
LIU Jinxian, GUO Tao, ZHOU Yatong, LI Dongyang, JIN Xiaobo
2025, 47(1): 77-88. DOI: 10.11781/sysydz2025010077
Abstract
Characteristics, controlling factors of development and exploration areas of deep coal-rock reservoirs in rift basins: a case study of the second member of Cretaceous Nantun Formation in Huhehu Sag, Hailar Basin
GAO Geng, XIE Yingyi, HOU Beibei, MA Wenjuan, XU Hui, WANG Yujie, HUO Yingdong, ZHANG Jingyuan, LIU Shichao, ZHAO Wei, LIANG Yuan
2025, 47(1): 89-103. DOI: 10.11781/sysydz2025010089
Abstract
Combined multi-scale characterization of pores in ultra-thick coal seams of Jurassic Xishanyao Formation, Tiaohu-Malang sags, Santanghu Basin
CHEN Yue, LEI Qiqi, MA Dongmin, WANG Xin, WANG Xinggang, HUANG Diefang, RONG Gaoxiang
2025, 47(1): 104-116. DOI: 10.11781/sysydz2025010104
Abstract
Accumulation conditions and target area evaluation of coalbed methane in eastern uplift of Junggar Basin
YU Qixiang, TIAN Mi, LUO Yu, YANG Fan, CHEN Yan'e, WANG Feng, GAO Yuqiao, GUO Tao
2025, 47(1): 117-129. DOI: 10.11781/sysydz2025010117
Abstract
Combined characterization of pore structurein deep medium-rank coal using mercury intrusion and liquid nitrogen adsorption methods and its pore fractal characteristics
LI Qi, WU Yong, QIAO Lei
2025, 47(1): 130-142. DOI: 10.11781/sysydz2025010130
Abstract
Research and insights for application of CO2-ECBM technology in deep high-rank coal seams: a case study of Jinzhong block, Qinshui Basin
ZHENG Yongwang, CUI Yinan, LI Xin, XIAO Cui, GUO Tao, ZHANG Dengfeng
2025, 47(1): 143-152. DOI: 10.11781/sysydz2025010143
Abstract
Hydraulic fracture propagation characteristics of directional perforation fracturing in horizontal wells for deep coalbed methane
HUANG Shuxin, LI Song, CHEN Bo
2025, 47(1): 153-162. DOI: 10.11781/sysydz2025010153
Abstract
Analysis of pressure-maintaining coring process in deep coal seams and gas content determination methods
WU Jian, ZHANG Songhang, JIA Tengfei, CHAO Weiwei, PENG Wenchun, LI Shilong
2025, 47(1): 163-172. DOI: 10.11781/sysydz2025010163
Abstract
Study on microscopic pore structures and mechanical properties
ZHAO Shihu, LI Yong, LIU Yali, WANG Yanbin, LIU Zengqin, CHEN Gang, CHEN Xinjun
2025, 47(1): 173-183. DOI: 10.11781/sysydz2025010173
Abstract
Study on sedimentary organic facies of coal-measure source rocks in Shuixigou Group, Taibei Sag, Tuha Basin
LIANG Hao, FAN Tanguang, WANG Zhiyong, TAO Shu, WEN Yijie, ZHENG Haitian, ZHANG Zijian
2025, 47(1): 184-194. DOI: 10.11781/sysydz2025010184
Abstract
Impact of new coalbed methane wells on old well productivity and its controlling factors: a case study of Shizhuangnan block in Qinshui Basin
HAN Xueting, MENG Shangzhi, LIU Guangjing, REN Zhenyu, TAO Shu, MEN Xinyang, WEI Ziyang
2025, 47(1): 195-203. DOI: 10.11781/sysydz2025010195
Abstract
Brittleness evaluation of main coal seams in Permian Taiyuan-Shanxi formations, Baode block, Ordos Basin: based on a convolutional neural network method
ZHANG Qingfeng, LI Ziling, ZHANG Jikun, HAO Shuai, SUN Xiaoguang, SHANG Yanjie, ZUO Yun
2025, 47(1): 204-212. DOI: 10.11781/sysydz2025010204
Abstract
Geological characteristics and development effect evaluation of coalbed methane reservoirs in Panguan syncline, Guizhou Province
HU Haiyang, YANG Fuqin, CHEN Jie, LOU Yi, WAN Yuting
2025, 47(1): 213-222. DOI: 10.11781/sysydz2025010213
Abstract