Results 61 to 70 of about 983 (135)

Hydrochemical characteristics and genetic mechanisms of coal mine water in the border area of Inner Mongolia and Shaanxi

Meikuang Anquan
The high-salinity mine water generated during coal mining in the border area of Inner Mongolia and Shaanxi poses a significant challenge to regional water resource development and utilization as well as ecological environment protection. Therefore, it is
Jingfan HUA, Kai SONG, Li ZHANG, Zhonghong DU, Ge CHEN, Guohan SONG, Weixiao CHEN, Heng LI, Xiangyu XU   +8 more
doaj   +1 more source

Accumulation conditions of shale gas in transitional marine-continental coal measures of the Carboniferous-Permian in Henan Province

矿业科学学报, 2016
The Carboniferous-Permian strata in Henan Province are a set of coal-bearing series of transitional marine-continental facies，of which the mudstones have potentials for shale gas exploration.The mudstones are characterized by a variable thickness of the ...
Shao Longyi, Zhang Liang, Zhang Jingkai, Wang Dewei, Shi Biao, Fu Yafei, Xu Lianli, Song Jianjun   +7 more
doaj  

Effects of rotation speed on the grinding process during high-speed diamond drilling by considering the metal matrix/rock chips interface

Discover Applied Sciences
In this paper, the effect of rotation speed on the grinding process during the high-speed diamond drilling was studied by considering the metal matrix/rock chips interface.
Ying Wang, Mingyang Gao, Kai Zhang, Yuxiao Li, Fuqiang Li, Xiao Liu   +5 more
doaj   +1 more source

Study on key control factors and risk assessment model of spontaneous combustion of coal gangue

Meikuang Anquan
To study the physical and chemical reaction characteristics during the spontaneous combustion process, and analyze the key controlling factors of coal gangue spontaneous combustion, industrial analyzers, elemental analyzers, sulfur content testers, coal ...
Qifan LI, Yulong ZHANG, Baibin HAN, Xin ZHANG, Shengyong HU, Chunshan ZHOU, Tong ZHANG, Yu ZHANG   +7 more
doaj   +1 more source

Influence of coal reservoir fracture pressure on fracturing reconstruction and its engineering application

Meikuang Anquan
The permeability of coal reservoirs in China is generally low, and the benefit of direct development of surface coalbed methane in low permeability reservoirs is low, and hydraulic fracturing is an effective means to increase the permeability and ...
Xingkai FENG
doaj   +1 more source

Evolution of full-scale pore structure characteristics of long-flame coal and influencing factors

Fuel Processing Technology
China has vast long-flame coal reserves containing abundant coalbed methane (CBM) resources. Understanding the evolution of full-scale pore structure characteristics of this coal and their influencing factors are vital for the CBM development.
Zheng Zhang, Shuguang Yang, Gang Wang
doaj   +1 more source

Design of Wireless Remote Monitoring and Early-warning System of Coalfield Fire

Gong-kuang zidonghua, 2012
In view of problems that forecast range is small, work load of installation and maintenance is large, and real-time monitoring and early-warning cannot be provided existed in traditional temperature monitoring systems of coalfield fire area with manual ...
WANG Wei-feng, DENG Jun, WANG Cai-ping, FEI Jin-biao   +3 more
doaj  

Differential roof water hazards and comprehensive utilization of mine water in the Dongsheng coalfield

Meitian dizhi yu kantan
ObjectiveThe Dongsheng coalfield exhibits various types of mine water hazards, complex water filling mechanisms, and high water inflow with high total dissolved solids (TDS) content in mining areas.
Haiyu HUANG, Xiang DING, Xi LIU, Jiangwei FAN, Zhuochen JI, Zhaoyang LI   +5 more
doaj   +1 more source

Geology of the Ashford Coalfield

Journal and proceedings of the Royal Society of New South Wales, 1947
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Basic characteristics of coalfield tectonic framework in China

矿业科学学报, 2016
The occurrence of coal-bearing strata in China is characterized by the variety of coal-bearing basins，the remarkable spatial and temporal differences of late tectonic deformations.The main controlling factors，which determine the tectonic framework of ...
Cao Daiyong, Ning Shuzheng, Guo Aijun, Li Huantong, Chen Limin, Liu Kang, Tan Jieqing, Zheng Zhihong   +7 more
doaj