摘要
以断层、砂体及断-砂组合关系分析为基础,结合地质、地震、地化等资料,对东营凹陷辛东地区的油气来源、有效输导体系和成藏模式进行了研究。结果表明:辛东地区主要以沙四型原油为主,构造两翼的油气来源相对单一,主要由相邻的牛庄和民丰生油洼陷供烃;构造核部的油气主要由牛庄、民丰洼陷以及下伏地层的烃源岩提供,来源相对较为复杂。含氮化合物的分布特征揭示了该区油气的注入方向为西北和西南方向的民丰洼陷和牛庄洼陷。该区油气运移的有效输导体系主要受辛172、辛120和永20断层控制,据此建立的砂体控藏模式、圈闭控藏模式和断、砂匹配关系控藏模式可用来指导该区的油气藏勘探。
Based on fault, sand body and matching relationship of sand-fault, geological, seismic and geochemical data were used to study the oil resource, effective migration pathways and pool-forming model of Xindong area in Dongying depression. The results show that hydrocarbons of Xindong area mainly come from Es4 source rock, petroleum bearing in structural flanks originates from adjacent sag. Niuzhuang sag, Minfeng sag and Xindong underlying source rock offer hydrocarbon for structural core where the origin of petroleum is complicate. According to the pattern of nitrogen compounds, hydrocarbons of Xindong area come from northwest Minfeng sag and southwest Niuzhuang sag. The effective migration pathways of Xindong area are dominated by the X172, X120 and Y20 faults. So the pool-forming models are generalized to three types： sand control poolforming, trap control petroleum accumulation, the matching relationship of sand-fauh control pool-forming, which are used to guide the exploration survey of Xindong area.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第4期13-18,共6页
Journal of China University of Petroleum(Edition of Natural Science)
基金
'十五'国家科技攻关项目(2001BA605A09)
中国石油大学校博士基金项目(Y060118)
关键词
东营凹陷
辛东地区
含氮化合物
有效输导体系
成藏模式
Dongying depression
Xindong area
nitrogen compound
effective migration pathways
pool-forming model
