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依据珠三坳陷油气的物理化学性质和组成特征(碳同位素组成、轻烃特征及生物标志化合物的分布)、排烃温度、烃源岩的地化特征与储层石英胶结物内与含烃包裹体共生的盐水包裹体的均一温度资料,进行珠三坳陷的油气源与油气藏充填史综合研究取得了新认识:文昌9-1、9-2构造的轻质油和天然气为腐泥型有机质(Ⅰ/Ⅱ_1型干酪根)与腐殖型Ⅲ型干酪根混合来源,文昌13-1、13-2构造与文昌8-3构造的油气主要来自文昌A凹陷;文昌13-1、13-2构造中的油气来自同一烃源岩,珠三坳陷曾经经历了两期油气充填。
Based on the physicochemical properties and compositional characteristics (carbon isotope composition, light hydrocarbon characteristics and distribution of biomarkers), the hydrocarbon expulsion temperature, the geochemical characteristics of source rock and the relationship between the hydrocarbon content in the quartz cements and hydrocarbon in the reservoir The homogenization temperature data of the inclusions in the inclusions of the inclusions have made a new understanding of the study on the filling history of hydrocarbon sources and reservoirs in the Chuansha depression: light oil and natural gas of Wenchang 9-1, 9-2 structure are sapropel Type organic matter (Ⅰ / Ⅱ 1 type kerogen) and humic type Ⅲ kerogen. The oil and gas of Wenchang 13-1 and 13-2 structures and Wenchang 8-3 mainly come from Wenchang A depression. Wenchang 13-1,13 -2 structures are derived from the same source rock, and the Pearl River Delta has undergone two phases of oil and gas filling.