Experimental study and field application of hydraulic flushing technology in soft coal seam [PDF]
Scientific ReportsTo enhance the safety of coal mining operations and improve the efficiency of gas extraction, hydraulic flushing technology has been widely used in low permeability coal seams.
Xianfeng Liu, Baisheng Nie, Hu Bei
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Hydraulic Flushing of Sediment in Reservoirs: Best Practices of Numerical Modeling
FluidsThis article provides a comprehensive review and best practices for numerically simulating hydraulic flushing for reservoir sediment management. Three sediment flushing types are discussed: drawdown flushing, pressure flushing, and turbidity current ...
Yong Lai +2 more
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Comparative Analysis of the Drainage Effect Based on Improved Hydraulic Flushing Technology. [PDF]
ACS Omega, 2022 The composite structure coal seam composed of coal seams with strong and weak deformation is widely developed in the coalfields in Southwest and North China. The implementation of hydraulic flushing in soft coal stratification can effectively relieve the pressure and increase the permeability of coal seams, so it can improve the effect of underground ...
Li Y, Zhang X, Liu X, Wang L, Zhang J.
europepmc +3 more sources
Numerical simulation study on gas drainage by interval hydraulic flushing in coal seam working face
Energy Exploration and Exploitation, 2021 In order to solve the problem of difficult gas extraction in coal mine, a method of gas extraction from coal seam by interval hydraulic flushing is put forward.
Shengrong Xie, Ping Chen, Junqi Cui
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Study on the Effect of Hydraulic Flushing on the Stress and Permeability Variations of Loaded Coal. [PDF]
ACS OmegaCoal seams in China are characterized by low permeability, high gas pressure, and soft coal, which lead to challenging gas extraction and severe gas disasters. Hydraulic flushing is widely used in the field to enhance the permeability of coal seams. Considering this fact, studying its effect on the stress and permeability variations of loaded coal is ...
Sun H, Yang H, Guo H, Ma S.
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Hydraulic Performance of Automatic Flushing Valve at the End of Dripline
Guan'gai paishui xuebao, 2021 【Background and objective】 Emitter clogging is a problem facing drip irrigation and drip-line flushing is an effective anti-clogging technology. The aim of this paper is to study how key structural parameters of automatic flushing valve at the end of ...
ZHAO Xinkai +7 more
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Application of Acoustic Emission Technique to the Evaluation of Coal Seam Hydraulic Flushing Effect
Energies, 2019 Hydraulic flushing has the advantages of reducing coal stress and improving coal seam permeability, so it is widely used in high gas outburst coal seams in China.
Enyuan Wang, Hongru Li, Xuan Zhang
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Morphological Characteristics of Hydraulic Flushing under Multifactor Coupling and Its Enlightenment
Geofluids, 2022 The shape of the hydraulic flushing hole is an important basis to determine the effective pumping radius. In the design and evaluation of the drilling hole, it is usually equivalent to a cylinder.
Xiao Liu +5 more
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Hydraulic flushing in soft coal sublayer: Gas extraction enhancement mechanism and field application
Energy Science and Engineering, 2019 In China, one or several ultrathin soft coal sublayers are widely developed in the coal seam. Therefore, a method of using hydraulic flushing in soft sublayer to enhance the gas extraction in these particular coal seams is developed in this work.
Yuanping Cheng +2 more
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Life Cycle Assessment of Microplastic Fouling Mitigation Strategies in Membrane Filtration [PDF]
MembranesWhile membrane technologies are critical for preventing microplastics (MPs) release into aquatic ecosystems, MPs-induced fouling remains a persistent bottleneck, necessitating energy-intensive cleaning strategies that introduce their own environmental ...
Rendra Hakim Hafyan +3 more
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