摘要
本区延10油藏的油水分布状况与现今构造没有关系。本文通过大量岩心及薄片观察,分析了成岩作用与孔隙结构演化以及与油气运移关系,阐明了形成圈闭的控制因素,明确指出延10油藏为次生岩性油藏,形成于成岩作用第4阶段铁白云石及菱铁矿等自生矿物析出之后;从而搞清了成岩作用对本区油气分布的控制过程。
The distribution of oil and water in Y10 oil-bearing formation in Maling oil field have no relation With the present geologic stracture.This paper gives an analysis on the relationship between the diagenetic feature and the evolution of the pore stracture,based on information of core study and cast sections,and explains the factors governing migration of oil and the forma- tion of oil trap.The Y10 reservoir is considered as a secondary lithologic re- servoir,and it was formed in four stage of diagenesis after the deposition of anthigenic minerals(such as Siderite,Fe-Dolomite).Thus,clear unders- tanding of diagenetic process control to distribution of oil and gas in the studied region has been demonstrated.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1991年第5期75-83,共9页
Petroleum Exploration and Development
