原生油藏 meaning in Chinese

native reservoir

4 . the types of of oil & gas are systematicly summarized . there are three basic type : first : lateral migration along layers with medium distance formed self - producing oil reservoir of neogene . second : migration along fault with short distance formed shallow oil reservoir . third : lateral migration along interlayer and unconformity with long distance
4 、系统总结了歧口凹陷油气二次运移的三种基本方式：一是中距离沿层侧向运移形成下第三系原生油藏；二是短距离沿断裂通道运移，形成浅层油藏；三是长距离沿层间或不整合面的侧向运移。