Coal Geology & Exploration
Volume 50, Issue 8 (2022)
Table of Contents
Table of Contents
The Editors
Special Issue Articles
Research progress and development trend of staged hydraulic fracturing technology in long-borehole underground coal mine
SUN Siqing, LI Wenbo, ZHANG Jian, CHEN Dongdong, ZHAO Jizhan, ZHENG Kaige, LONG Weicheng, WANG Chenyang, JIA Bingyi, DU Tianlin, LIU Le, YANG Huan, and DAI Nan
Experimental study on the mechanical properties of coal-like materials for hydraulic fracturing simulation
ZHAI Cheng, ZHENG Yangfeng, YU Xu, XU Jizhao, SUN Yong, CONG Yuzhou, TANG Wei, LI Yujie, ZHU Xinyu, and CHEN Aikun
High-efficiency regional gas drainage model after hydraulic fracturing of comb-shaped long boreholes in the roof of broken soft and low permeability coal seam
CHEN Dongdong, WANG Jianli, JIA Bingyi, and XI Jie
Research on hydraulic fracturing technology and equipment of directional long drilling with sand in coal seam roof
ZHANG Jian, LIU Le, ZHAO Jizhan, SUN Siqing, and WANG Chenyang
Experimental study of hydraulic fracture evolution with materials similar to the structural plane
LI Quangui, WU Xiaobin, HU Qianting, LIU Le, SHI Jialin, and SONG Mingyang
Study of technologies and equipment of continuous hydraulic sand fracturing for permeability enhancement at high pressure side of coal mine downhole
JIA Bingyi, LI Shugang, CHEN Dongdong, LIN Haifei, ZHENG Kaige, SUN Siqing, and ZHAO Jizhan
Dynamic disaster evolution mechanism of high mine pressure at hard roof and advance area prevention and control technology
ZHENG Kaige, WANG Lintao, LI Bingang, LI Yanjun, YANG Huan, YANG Sen, DAI Nan, WANG Haojie, WANG Zeyang, and XI Jie
Enhanced gas drainage technology by staged fracturing in long bedding borehole in hard coal bed of underground coal mine and its application
WANG Chenyang, LI Shugang, ZHANG Yongtao, GUO Yi, SUN Siqing, CHEN Dongdong, and DOU Chengyi
Coal Geology, Mine Geology
Analysis and prospect of precise prevention and control technical system ahead of large areas and time for gas disasters in China
LIU Cheng, SUN Dongling, WU Wenbin, LI Liangwei, and SUN Zhongguang
Study on long-distance fixed-point sealed coring technology in broken-soft coal seam
LONG Weicheng, SUN Siqing, and CHEN Jian
Hydrogeology, Engineering Geology, Environmental Geology
Hydrochemical characteristics and source analysis of deep groundwater in Qianyingzi Coal Mine
CHEN Kai, LIU Qimeng, LIU Yu, PENG Weihua, WANG Zitao, and ZHAO Xiang
Study of constitutive model of frozen sandstone damage based on Weibull distribution
YI Ming, ZHAO Tao, MA Feifei, WANG Lei, and YUAN Chao
Analysis on spatio-temporal evolution law of freezing temperature field in eastern shaft of Qinan Coal Mine
HUANG Shiqing, RONG Chuanxin, LONG Wei, MA Haochen, and HE Junzhen
Coal Geophysical Exploration, Mine Geophysical Exploration
Study of advance elaborate detection with transient electromagnetic method for mine with closed poor boreholes
HUANG Zhongzheng, JIANG Guoqing, WANG Jun, CHENG Jiulong, MA Zhi, TIAN Chuxiao, and XIN Chengtao
Experimental study on nondestructive testing of anchor cable in pumped storage power station
YAN Liangping, ZHOU Liming, CUI Botao, WANG Bolin, and LU Jiangang
Drilling Engineering
Optimized design and surface additive technology of PDC bit for hard rock directional drilling
WANG Chuanliu, JIN Xin, GAO Xiaoliang, and ZHANG Peng
Experimental study on power matching of modular double pumping stations of tunnel drilling rig
LU Feifei, FAN Dong, and TIAN Hongliang
