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敦化盆地作为中国东部中-新生代叠合盆地,中生代为燕山期区域性隆升剥蚀背景下的裂陷盆地,新生代古近纪至今为继承性的断坳型盆地。发育下白垩统、古近系和新近系3套烃源岩,有机质热演化处于低成熟-成熟阶段,油气源较丰富;多期构造运动和火山活动形成的两组断裂以及不整合面,为油气运移提供了良好的通道和运移动力;圈闭类型多,定型早,与油气的生排烃期形成良好的匹配关系;盆地具有较好的勘探前景,其中北部凹陷镜泊湖次凹为油气勘探的有利区带。
As the Meso-Cenozoic superimposed basin in the eastern part of China, the Mesozoic Mesozoic was a rifted basin under the regional uplift and erosion of the Yanshan Period. The Cenozoic up to now is a succession of fault-depression basin. Developed three sets of source rocks of Lower Cretaceous, Paleogene and Neogene. The thermal evolution of organic matter is in low maturity-maturity stage, with abundant oil and gas sources. Two sets of faults and unconformities formed by multi-phase tectonism and volcanic activity are Hydrocarbon migration provides a good channel and motive force for migration; the trap types are many and the stereotypes are early, forming a good match with the hydrocarbon generation and expulsion periods; the basin has a good exploration prospect, in which the north of the Jingpohu Sag A favorable zone for oil and gas exploration.