Results 31 to 40 of about 1,809 (225)

Permeability Variation of Tectonic Coal under Microwave Radiation

Taiyuan Ligong Daxue xuebao, 2022
On a microwave radiation triaxial loading experimental system with independent intellectual property rights, seepage experiments of coal samples were condected under the action of different microwave radiation power, radiation time, and effective force, the key factors affecting the permeability of coal samples were analysed, and the actual structural ...
Yongli ZHANG, Yuying TU, Yubin DONG, Yulin MA   +3 more
openaire   +1 more source

Analysis of outburst instability tendency of coal containing methane based on energy theory

Meikuang Anquan, 2022
In order to analyze the influence of unsteady diffusion characteristics of tectonic coal on energy instability, the steady and unsteady gas diffusion models were used to establish the functional relationship between the initial gas diffusion coefficient ...
LU Shouqing, LI Mingjie, SI Shufang, SA Zhanyou, LIU Jie, WANG Chengfeng, BEI Taibiao, SHI Jiang   +7 more
doaj   +1 more source

Deformation and reservoir properties of tectonically deformed coals

Petroleum Exploration and Development, 2014
Tectonic deformation and pore structure characteristics of tectonically deformed coals (TDC) collected from the Hancheng area, Weibei block, eastern Ordos Basin were characterized through scanning electron microscope, micro-CT, mercury porosimetry and low-temperature nitrogen adsorption experiments. The isothermal adsorption experiment of lumpy TDC was
Huifang YAO, Zhiqin KANG, Wei LI
openaire   +2 more sources

Coal body structure identification and development effect evaluation based on logging response

Meikuang Anquan, 2021
According to the logging response characteristics of different coal structures, this paper quantitatively identified and described the coal structure in the research area, verified the results by drilling and coring.
LI Quanzhong, ZHAO Lingyun, HU Haiyang
doaj   +1 more source

Insights into fundamental problems of rockburst under the modern structure stress field

Scientific Reports, 2022
Rockbursts are some of the most severe dynamic disasters in coal mines. In this paper, the discrimination method of the tectonic stress field is proposed by analyzing the modern stress field in China.
Hai Rong, Nannan Li, Hongwei Zhang, Dequan Sun, Bingjie Huo   +4 more
doaj   +1 more source

Hotspots, trends, and regional focus on oil or gas exploration: A bibliometric comparative study

Deep Underground Science and Engineering, EarlyView.
This paper explores the research trends in global oil and gas exploration through the bibliometric analysis of 3460 articles collected from the Web of Science database on oil and gas exploration published from 2013 to 2023. The research hotspots, objects, regional distribution, methods, and evaluation methods of oil and gas exploration are analyzed and
Jihong Wang, Zhongkai Li, Jianguo Wang, Zhiqiang Li   +3 more
wiley   +1 more source

Corrosion effect of hydrochloric acid on the granite: Insights from electrical conductivity, mineral composition, and tensile behavior

Deep Underground Science and Engineering, EarlyView.
The evolution of electrical conductivity, mineral composition, and tensile behavior such as peak strength, average stiffness, and the energy evolution of the granite specimen under different HCl conditions are studied, analyzed as well as quantified, and investigated, respectively.
Yanan Gao, Yikang Cheng, Guanglei Cai, Yuan Gao, Jianwei Tian, Mingzhong Gao   +5 more
wiley   +1 more source

Study on unsteady diffusion characteristics of primary coal and tectonic coal under the influence of pressure and particle size

Meikuang Anquan
In order to further study the characteristics of gas desorption and diffusion in coal, the gas desorption and diffusion experiments of primary coal and tectonic coal with different gas pressures (0.8, 1.3, 2.4, 3.3 MPa) and different particle sizes (0 ...
Shouqing LU, Lurui TAN, Yujin QIN, Zhanyou SA, Jie LIU, Yongliang ZHANG   +5 more
doaj   +1 more source

Experimental study on dynamic behavior analysis of coal and its acoustic emission response characteristics under impact failure

Deep Underground Science and Engineering, EarlyView.
Based on acoustic emission response characteristics, it can be more accurate to identify the damage evolution process of coal under the combined dynamic and static loads, reveal the moment corresponding to coal damage, and identify the characteristics of coal failure. The research results are conducive to the further use of acoustic emission monitoring
Wei Zhang, Huijian Fu, Yingke Liu, Zhaoxi Long, Yang Liu, Tengrui Yang, Yanbo Sun, Mingjun Jiang, Xiaojiang Wen, Yue Niu, Ruixi Cheng   +10 more
wiley   +1 more source

Study on mechanical properties and fractal evolution law of containing tectonic coal combination

Meikuang Anquan
To study the mechanical properties of tectonic coal combination specimens, based on the occurrence characteristics of coal seam in a high gas mine, this study carried out the mechanical properties test experiment of loading and fracture process of ...
Qiudong SHAO, Wenbo PEI, Qiping LI, Xingpeng REN, Pengxiang ZHAO, Yanbiao TIAN, Li GUO   +6 more
doaj   +1 more source