• 责任者：Zhu Jianhui (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Shen Zhongmin
• 刊名：Journal of Chengdu University of Technology
• 出版年：2012
• 卷期：39(5)
• 关键词：烃源岩 ; source rocks ; 松辽平原 ; Songliao Plain
• 页码：p.471-479
• 图表：4 illus., 2 tables, 11 refs.
• 分类号：1003
• issnNo：ISSN1671-9727
• isbnNo：CN51-1634/N

The source rocks are evaluated by using geochemical testing and the hydrocarbon-generating potential is explored in Cretaceous in the Zhangwu fault depression of Songliao Basin. The statistic analysis of organic abundance, type and maturity, and the saturated hydrocarbon chromatography of the Cretaceous source rocks in the Zhangwu fault depression show following three features: 1) the source rocks in Jiufotang Formation is thick, characterized by high organic abundance, good types and low maturity-maturity; 2) the organic matrix of this source rock is from both lower aquatic creatures and higher plants. The Jiufotang Formation was mainly from bathyal lacustrine-lacustrine lower aquatic creatures, and the Shahai Formation was from terrestrial higher plants; and 3) the Jiufotang Formation and Shahai Formation source rocks firstly deposited in brackish environment and then, evolved into freshwater environment. In general, they deposited in a reduction environment. The Jiufotang Formation source rock is the main source rock in the Zhangwu fault depression with preferable-good oil potential, and then, the Shahai Formation source rocks.