沾化凹陷区中生界发育2类6种油气藏类型。
以济阳坳陷中的沾化凹陷为例说明复式含油气系统的形成及特征。
Taken the Zhanhua sag in the Jiyang depression as an example, the formation and characteristics of the multiple petroleum system are expounded.
传统观点认为，沾化地区沙二段应为沙二上亚段，全区缺失沙二下亚段。
Traditional standpoint is that upper Es2 submember was reserved and lower Es2 submember were lost in Zhanhua Area.
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