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A case study of gas drainage to low permeability coal seam
International Journal of Mining Science and Technology, 2017 Gas drainage at low gas permeability coal seam is a main barrier affecting safety and efficient production in coal mines. Therefore, the research and application of drainage technology at low permeability coal seam is a key factor for gas control of coal
Li Zhang, Hui Zhang, Hao Guo
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A New Method for Horizontal Axis Wind Turbine (HAWT) Blade Optimization
International Journal of Renewable Energy Development, 2016 Iran has a great potential for wind energy. This paper introduces optimization of 7 wind turbine blades for small and medium scales in a determined wind condition of Zabol site, Iran, where the average wind speed is considered 7 m /s.
Mohammadreza Mohammadi +2 more
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Influence of interlayer channeling of composite reservoir on gas drainage
Meikuang Anquan, 2022 In order to investigate the influence of surrounding rock characteristics on gas drainage of through layer borehole in composite reservoir, the seepage law of gas in coal seam and rock stratum is analyzed.
ZHANG Zhiyuan +3 more
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Gravity drainage during gas injection
Petroleum Geoscience, 1995 The drainage of oil under gravitational forces has been an important mechanism in the production of many oil fields. In order to extend the economic implementation of gas injection into more marginal fields, a reduction in the uncertainties associated with gravity drainage is required.
P. Naylor +4 more
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Study on Gas Control Methods Optimization for Mining Safety
Advances in Civil Engineering, 2021 Effective gas control is of significance for safe efficient coal mining in Haizi Coal Mine and other mines with similar geological conditions. This study concentrates on gas control theories and techniques in multiple coal seams of Haizi Coal Mine (No. 7,
Liwen He +5 more
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CFX-based numerical simulation of pipeline leakage of coal mine main gas drainage system
矿业科学学报, 2021 To understand the pipeline leakage characteristics of the large-scale main gas drainage system in coal mines and the multi-physical fields of the gas flow in pipeline, a three-dimensional numerical model is developed based on Ansys CFX and the process of
Cai Jitao +4 more
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Design of gas drainage monitoring system based on S7-1500R redundancy technology
Meikuang Anquan, 2022 For the problems that the PLC controller failure in the gas drainage monitoring system makes the monitoring system unable to monitor and control the gas drainage system, a gas drainage monitoring system based on S7-1500R redundant PLC is designed ...
WANG Zuxun, CHENG Yulong
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Gas seepage law and drainage borehole layout considering coal body creep
Gong-kuang zidonghua, 2019 In order to research influence of deep coal body creep on gas seepage, mathematical models of multi-field coupling including coal body deformation field, gas diffusion field and gas seepage field were established considering creep action.
SONG Hongli, ZHAO Yang, LI Qingzhao
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Preparation and Sealing Performance of a New Coal Dust Polymer Composite Sealing Material
Advances in Materials Science and Engineering, 2018 In this study, a new coal-dust polymer composite material (CP) was fabricated to improve the borehole gas drainage effect and address the limitations of traditional sealing materials.
Bo Li +3 more
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Research of Drainage Gas Recovery Technology in Gas Wells
Open Journal of Fluid Dynamics, 2014 Drainage gas recovery technology is the main method of gas recovery process in gas field, which has domestically and internationally been the main gas recovery processing measure in later stage of gas field production. In this context, produced water or condensate liquid will not be carried out of pit shaft by natural gas with the gradual drop of ...
Shuren Yang +4 more
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