摘要
东濮凹陷是典型的盐湖沉积盆地 ,油气的分布与盐膏岩的沉积有密切的关系。沙三3亚段出现的红色地层 (浅水标志 )和该凹陷的蒸发岩的沉积序列特征表明 ,东濮凹陷的盐岩为海侵的浅水蒸发盐。在湖盆的沉积过程中存在 3种体系域 ,即低水位体系域 ,湖盆收缩体系域和高水位体系域。不同的体系域形成不同的沉积体系 ,从而形成不同的生、储、盖组合。
Dongpu depression is a typical salt deposited sag.In which exists close relationship between the distribution of oil and gas and the deposition of the salt and gypsum.The red layers in member Es 3 3(shallow water remarks)and the depositional sequence of evaporating rocks in this depression show that the salt and gypsum in this depression were formed from the evaporating marine invasion shallow water.There are three system tracts in the depositional process of the depression,namely the low level,the receding and the high level.The different system tract forme the different depositional system,in turn to form the different source-reservoir-cap assemblage.The researches on the origin of the salt and its controlling effect for the distribution of the oil and gas in this depression will be the guide for the future exploration.
出处
《断块油气田》
CAS
2002年第4期12-14,共3页
Fault-Block Oil & Gas Field
关键词
东濮凹陷
浅水成盐
油气分布
海侵
低水位体系域
高水体系域
生储盖组合
油气地质
Shallow water forming salts,Marine invasion,Low level system tract,High level system trace,Source-reservoir-cap assemblage,Dongpu depression
