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A Study on the Occurrence Law of Coal Seam Gas in Shanxi

机译：山西煤层气发生规律研究

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摘要

The thickness of overlaying bedrock is the main control factor of preservation, in addition, magmatic activities, different structural types and hydrogeological conditions are also control factors. Regional magmatic thermometamorphism appeared as a kind of superimposed effect on the background of deep metamorphism. Two Eastwest (EW)metamorphic belts in Shanxi tallied with the distribution of magmatic rock masses, resulting in coal seam gas exploitation and utilization bases of Yangquan and Jincheng mining areas. From gas-accumulation structural setting, closed type structures make high gas content in coal reservoir such as Qinnan, Gujiao, Xingjiashe, Dongshe areas in the Qinshui Basin, Shilou, Daning-Jixian and Sanjiao-Liulin areas in the Hedong Basin, gas content is 10-15 m~3/t or even higher. There are convenient channels for coal seam gas effusion in the open structures; with lower gas content, such as Lishi mining area in Hedong Basin, Huoxi structural area in Qinshui Basin, Hunyuan, and Wutai coal districts.
机译：覆盖基岩的厚度是保存的主要控制系数，此外，岩浆活动，不同的结构类型和水文地质条件也是控制因素。区域岩浆热素质出现为对深层变质背景的一种叠加效果。山西两家东猫（EW）变质带随着岩石岩体的分布，导致阳泉和金城矿区的煤层气开采和利用基地。从气体积聚结构环境中，封闭式结构使煤层中的高煤气含量如秦山盆地，顺西盆地，丹宁 - 赤素和三角岭地区的秦南，古焦区，河东盆地，煤气含量为10-15 m〜3 / t甚至更高。在开放结构中有方便的煤层气积液通道;凭借较低的气体含量，如河东盆地的利石矿区，秦山盆地，浑源和五泰煤炭区的Huoxi结构区。

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