荥巩煤田二1煤层煤层气赋存规律及影响因素研究Hosting Pattern and Influencing Factors of CBM in No.Ⅱ-1 Coal Seam,Xinggong Coalfield
曹代功
摘要(Abstract):
通过对大量钻孔数据和生产矿井实测资料的综合分析,基本探明荥巩煤田二1煤层煤层气含量呈由西向东、由浅而深逐渐增大的分布规律,按照煤层气含量变化及其地质背景的差异将煤田分为4个煤层气地质单元;认为围岩、煤层厚度、煤层埋深、地质构造是影响煤层气赋存的主要因素,其叠加效应增加了煤层气赋存的复杂性和不均衡性。据此,确定了荥巩煤田煤层气的富集带和排泄区。
关键词(KeyWords): 荥巩煤田;二_1煤层;煤层气;赋存规律
基金项目(Foundation):
作者(Author): 曹代功
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