马岭油田南一试验区延10储层的成岩作用及其对油气分布的控制  

DIAGENESIS OF THE FORMATIONS Y10 IN SOUTHERN TEST AREAS IN MALING OIL FIELD AND THEIR CONTROL ON THE DISTRIBUTION OF OIL AND GAS

作　　者：王觉民[1] 康有新[2] 谢志杰[2] 

机构地区：[1]西安石油学院 [2]长庆石油勘探局勘探开发研究院

出　　处：《石油勘探与开发》1991年第5期75-83,共9页Petroleum Exploration and Development

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.

关 键 词：成岩作用 孔隙结构 圈闭 

分 类 号：P618.130.2[天文地球—矿床学]