南黄海盆地含油气系统与油气勘探方向

南黄海盆地是目前中国近海惟一未获得工业性油气流的含油气盆地，其找油前景引起了人们的极大关注。根据前人的认识和研究成果，以含油气系统理论为指导，综合考虑含油气系统中烃源岩的演化阶段和凹陷分类原则，南黄海盆地在平面上可划分为6个含油气系统，每一个含油气系统都发育各具特色的生储盖组合特征及圈闭和运移条件。其中北部坳陷北凹中生界含油气系统和南部坳陷南四凹古近系含气系统为两个已知的含油气系统，北凹以寻找泰州组含油气系统的原生油气藏为主，南四凹以寻找阜宁组含油气系统的次生油气藏为主。

Petroliferous Systems and Petroleum Exploration Targets in the South Yellow Sea Basin

The South Yellow Sea basin is China's only offshore petroliferous basin whose oil and gas flows have not come up to the industrial standard,and whoes petroleum potential has become a public interest.In light of former cognitions and new research results and also according to the method of petroleum system,the basic unit of system is proposed to have a single center of oil generating depression.Six sags of the south and north depressions in the South Yellow Sea basin were analyzed.Each system has its own combination of the source-reservoir-caprock,migration path and distribution.According to oil-rock correlation,there are two petroleum systems in the South Yellow Sea basin.One is Taizhou Formation petroleum system of the northern sag,the other is Funing Formation petroleum system of the fourth southern sag.It is suggested that hydrocarbon exploration should first aim at the oil pools of Taizhou Formation petroleum system of the northern sag,and then at the secondary oil pools of Funing Formation petroleum system of the fourth southern sag.