The lithological traps were the minimum oil-gas gathering and transferring stations in the course of hydrocarbon migration and accumulation. 窪陷帶岩性圈閉是含油氣盆地油氣運聚成藏過程中的小型油氣集輸站。
Though the reservoir-forming process is complex, the accumulating and preservation condition are good.Furthermore, the tectonic cleats caused by magmation promote the permeability. 雖然成藏過程較為複雜，但煤層理藏史與生烴史配置良好，有利於煤層氣富集保存，又由於發育有由岩漿誘發成因的煤層構造裂隙而使儲層滲透率提高。
