石油勘探与开发2012，Vol.39Issue(2)：172-180,9.
鄂尔多斯盆地延长组下组合油气来源及成藏模式
Hydrocarbon origin and reservoir forming model of the Lower Yanchang Formation, Ordos Basin
摘要
Abstract
According to the comparison of biomarkers in source rocks and crude oil, fluid inclusion analysis, and basin modeling, this paper discusses the oil source, hydrocarbon accumulation period and reservoir forming model of the Chang 9 and Chang 10 oil-bearing formations, Yanchang Formation, Ordos Basin. The crude oil of Chang 9 in the Longdong and Jiyuan areas can be divided into two types, type I crude oil originated from the source rocks within Chang 7, while type II crude oil came from the source rocks within Chang 9. The crude oil of Chang 10 in Northern Shaanxi originated mainly from the source rocks of Chang 9. The Chang 9 oil reservoirs in both the Longdong and Jiyuan areas experienced two periods of hydrocarbon injection. The former reached the peak period of hydrocarbon injection in the first period (the depositional period of Middle Jurassic Zhiluo Formation), while the latter in the second period (the depositional period of Lower Cretaceous Zhidan Formation). There are two periods of continuous hydrocarbon injection in Chang 10 of Northern Shaanxi, generally from the early depositional period of the Middle Jurassic Zhiluo Formation to the middle-late depositional period of the Cretaceous Zhidan Formation. There are three types of hydrocarbon accumulation models in Chang 9 and Chang 10, I.e. "upper generation and lower storage", "adjacent generation and lateral storage" and "self-generation and self-storage".关键词
油源对比/成藏主控因素/成藏模式/长9油层组/长10油层组/鄂尔多斯盆地Key words
oil-source correlation/ reservoir controlling factor/ reservoir forming model/ Chang 9 oil-bearing formation/ Chang 10 oil-bearing formation/ Ordos Basin分类
能源科技引用本文复制引用
李相博,刘显阳,周世新,刘化清,陈启林,王菁,廖建波,黄军平..鄂尔多斯盆地延长组下组合油气来源及成藏模式[J].石油勘探与开发,2012,39(2):172-180,9.基金项目
国家自然科学基金项目(41172131) （41172131）
中国科学院重要方向项目(KZCXZ-EW-104-02) （KZCXZ-EW-104-02）
国家科技重大专项“大型油气田及煤层气开发”(2008ZX05044-2-8-2) （2008ZX05044-2-8-2）
