泌阳凹陷——湖相碳酸盐岩生油的一个实例

Biyang Depression——An Example of Lacustrine Carbonate as Source Rocks of Petroleum

本文以泌阳凹陷下第三系核桃园组湖相碳酸盐岩为例,阐述了湖相碳酸盐岩生油岩的一般特征。从湖相碳酸盐岩的组成特征、有机质含量、烃转化率、有机质类型诸方面说明了湖相碳酸盐岩生油岩具备了丰厚的成油物质基础,并以令人信服的油源对比资料说明湖相碳酸盐岩不仅能够生油,而且也可以成为商业性石油的源岩。

The general characteristics of lacustrine carbonate source rocks are discussed in this paper,where the lacustrine carbonate of Hetaoyuan Formation,Tertiary,Biyang Depression,was taken as an example.That the composition characteristics,the contents of organic matters,the transformative rate of hydrocarbons and the type of organic matters show that lacustrine carbonate source rocks are rich in oil-generating material,and the convincible oil-source rock correlation material indicates that lacustrine carbonates not only can generate oils,but also be the source rocks of commercial oils.