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煤层瓦斯动力学是一门主要研究煤(岩)层内瓦斯(煤成气)运移和分布规律的边缘地球科学。笔者运用瓦斯地质的新观点来认识煤(岩)层内瓦斯(煤成气)运移和分布的机理,阐明了煤层瓦斯动力学中瓦斯流动的新的动力学模型,并对新理论在煤矿防治瓦斯中的应用作了重点开拓。进而根据现场实测煤层瓦斯动力参数,利用电子计算机技术,对国内外五种典型的煤层瓦斯动力模型进行数值模拟。经现场实测参数对比分析结果表明:新的煤层瓦斯动力模型比国内外三大模型更逼近实际。为预测矿井瓦斯变化规律以及开发煤成气资源提供了一种新的定量分析理论和科学方法。
Coal seam gas dynamics is a marginal earth science that mainly studies the transport and distribution of gas (coal-to-gas) in the coal (rock) layer. The author uses the new viewpoints of gas geology to understand the mechanism of gas (coal gas) migration and distribution in the coal (rock) formation, expounds the new dynamic model of gas flow in coal seam gas dynamics, Prevention and control of gas in the application made a focus on development. Then according to the field measured gas dynamic parameters of coal seam, the five typical coal seam gas dynamic models at home and abroad are numerically simulated by using computer technology. The comparison of field measured parameters shows that the new coal seam gas dynamic model is more realistic than the three models at home and abroad. It provides a new quantitative analysis theory and scientific method for predicting the variation law of mine gas and developing coal gas resources.