摘要
中国东部陆相下第三系盐湖相的油气勘探实践证明,在同一含盐湖盆内油源岩存在着正常型、交替型、侧异型三种沉积类型。盐湖相油源岩有机质丰富,母质类型多为Ⅱ型,热演化程度低,石油密度大,烃含量低,非烃和硫含量高,在烃类组成中有很大的植烷优势,甾、萜烷系列化合物中生物构型和γ-蜡烷较丰富。 本文对三种沉积类型的勘探实例进行了剖析。
The petroleum exploratory practice in Paleogene non-marine lacustrine facies, eastern China proved that the source rocks in the same salt-bearing lake basin can be classified into three sedimentation types i. e. normal, alternative,lateral variation types. Furthermore the source rocks of saline-lake facies are characterized by abundant organics, with type Ⅰ kerogen, low thermal evolution, high density of crude oil, low content of hydrocarbon , high content of non-hydrocarbon and sulfur. As for the compositions of hydrocarbons, there is a high predominance of phytanes with a series of sterane and terpane compounds rich in biological configurations and gamma cerotane. The three sedimentation types with exploration cases are analysed in detail.
出处
《石油实验地质》
CAS
CSCD
北大核心
1993年第3期272-280,共9页
Petroleum Geology & Experiment
