沁水盆地南部水动力强度判断方法研究与应用
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摘要
煤层水动力条件对煤层气开发和煤矿开采均具有重要意义。为更加准确的预测煤层水动力条件,文章基于沁水盆地南部煤层气井水文地质资料,研究了煤层原始水头高度、煤层水类型、矿化度及煤层甲烷碳同位素等参数与煤层水动力条件的关系,结果表明利用煤层原始水头高度可以划分煤层水动力分区,并且划分结果与煤层含气量具有良好的匹配关系。
The hydrodynamic conditions of coal seam are of great significance to coalbed methane development and coal mining. For more accurate prediction of hydrodynamic conditions of coal seam, the article researches the parameters such as the height of original water head, the types of coal seam water, the mineralization and carbon isotope of coalbed methane and the relationship between these parameters and the hydrodynamic conditions of coal seam, based on the hydrogeological data of the coalbed methane wells in southern Qinshui Basin. The results show that using the height of original water head can divide coal seams into different hydrodynamic zones, and the hydrodynamic zones matches the gas contents of coal seams very well.
The hydrodynamic conditions of coal seam are of great significance to coalbed methane development and coal mining. For more accurate prediction of hydrodynamic conditions of coal seam, the article researches the parameters such as the height of original water head, the types of coal seam water, the mineralization and carbon isotope of coalbed methane and the relationship between these parameters and the hydrodynamic conditions of coal seam, based on the hydrogeological data of the coalbed methane wells in southern Qinshui Basin. The results show that using the height of original water head can divide coal seams into different hydrodynamic zones, and the hydrodynamic zones matches the gas contents of coal seams very well.
引文
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