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鸡西盆地煤层气生成规律总体为起伏式、加深型。穆棱组主要含煤段上部的泥岩,层间夹有凝灰岩,在泥岩的上部还有多层凝灰岩标志层,因此起到了良好的盖层作用,封闭条件好。盆地二级构造单元中的凹陷构造单元是煤层气运移、富集的地质构造,逆冲断裂以及其附属的入字形褶曲构造亦应是较理想的煤层气运移、富集的地质构造。
The general rule of CBM formation in Jixi Basin is undulating and deepening. The Muling Formation is mainly composed of mudstone in the upper part of the coal-bearing section, with tuffs sandwiched between layers, and multiple layers of tuff markings in the upper part of the mudstone. Therefore, it plays a good role of caprock with good sealing conditions. The diagenesis units in the secondary tectonic units of the basin are the coalbed methane migration and enrichment geological structures. Thrust fractures and their accompanying in-fold fold structures should also be the ideal geological structures for the migration and enrichment of coalbed gas.