Formation Mechanism of Organic Matter in Source Rocks under Marine Environment in Yinggehai Basin

被引：0
|
作者：
Xu X. [1 ]
Yang J. [1 ]
Liu H. [1 ]
Guo X. [1 ]
Xiong X. [1 ]
Liang G. [1 ]
机构：
[1] Zhanjiang Branch of China National Offshore Oil Corporation Ltd., Zhanjiang
来源：
Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences | 2019年 / 44卷 / 08期
关键词：
Development model; Formation mechanism; Marine source rock; Miocene; Petroleum geology; Yinggehai Basin;
D O I：
10.3799/dqkx.2019.091
中图分类号：
学科分类号：
摘要：
In order to find out the formation mechanism of organic matter in marine source rocks of Yinggehai Basin, the geobiological methods were introduced to evaluate the dynamic process of the hydrocarbon source rocks, which can make up for the poor sample conditions of the basin. Combined with organic geochemical methods, the formation mechanism of organic matter in marine source rocks of Yinggehai Basin was studied comprehensively and the development model of source rocks was established. The study shows that shallow marine source rocks are developed in the Miocene of Yinggehai Basin. The organic matter type is mainly type II2-III, which is the mixed source rock. Most of the Miocene source rocks in the depression are in the high-mature to over-mature stage. Marine source rocks are mainly controlled by paleoproductivity and preservation conditions. In plane, the development conditions of Miocene source rocks in the Dongfang area of Yinggehai Basin are better than those in Ledong area. Vertically, favorable source rocks maybe distribute in Meishan formation. The research results provide an important basis for recognizing the formation mechanism of source rocks and accurately evaluating their resource potential in the Yinggehai Basin. © 2019, Editorial Department of Earth Science. All right reserved.
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页码：2643 / 2653
页数：10
相关论文
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