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从微观到宏观研究了盖层封闭特征，从垂向和侧向两个方面研究了断层的封闭特征，通过古流体势场恢复，研究了本区油气运聚形式。根据封盖条件、生储特征、运移特征，将延吉盆地东部坳陷划分了三个油气运聚系统，即德新地区封闭型运聚成藏系统、广兴—东风地区半封闭型油气运聚系统、延吉—东盛涌地区油气逸散系统。在油气运聚系统划分的基础上，对有利探区进行了预测。
From the microscopic to the macroscopic study, the sealing characteristics of the caprock are studied. The sealing characteristics of the fault are studied both vertically and laterally. Through the recovery of the paleosol fluid potential field, the hydrocarbon migration and accumulation pattern in this area is studied. According to the sealing conditions, reservoir characteristics and migration characteristics, three oil and gas migration and accumulation systems are divided in the eastern depression of the Yanji Basin, namely the closed migration and accumulation system in Germany and New Zealand, semi-closed oil and gas transportation in Guangxing-Dongfeng area Poly-system, Yanji - Dongsheng-Chung regional oil and gas emission system. Based on the division of hydrocarbon migration and accumulation system, the favorable exploration area is predicted.