断陷湖盆深层砂砾岩体储层控制因素分析  

The Research for Controlling Factors of Glutinite Bodies reservoir in Steep Slope of Rift-Basin

作　　者：于雯泉[1] 孙晓庆[1] 李丽[1] 

机构地区：[1]中国石油大学地球资源与信息学院,257061

出　　处：《中国科技信息》2009年第10期34-37,共4页China Science and Technology Information

基　　金：山东省博士后创新项目基金"胜利油田山东探区深部膏盐层系砂砾岩储层成岩演化定量研究"(编号:200702040)研究成果之一

摘　　要：通过岩心观察、薄片鉴定、扫描电镜和物性分析等技术,并运用SPSS数据分析软件,以东营凹陷北部陡坡带深部储层为例,对断陷盆地深层砂砾岩体储层的控制因素进行了分析。认为深层砂砾岩体储层的控制因素具有多样性与复杂性,它们之间互相制约互相影响,其中沉积因素是储层形成的根本,扇中亚相的辫状水道微相和朵叶体微相的中粗砂岩和含细砾粗砂岩是有利岩相。成岩作用对储层形成具有决定意义,根据主成分分析,发现溶蚀作用与沥青充填对孔隙度的影响最高,其直接影响着储层的类型与性能,压实和胶结作用在粗范畴中影响着储层的类型,是隐性因素。流体因素则起到枢纽的作用,它受到沉积与成岩的影响,但也控制着储层成岩作用的类型,直接影响了储层的物性。With the technique of mold thin section, scanning electron microscope, physical properties and SPSS data analysis software, the controlling factors of glutinite bodies reservoir in steep slope of rift-basin were researched as an Example from Dongying Depression. The factors were diversity and complexity, and they restricted each other. The deposition environment was the basic factor. The coarse sandstone of microfacies of braided river channel and leaf facies was profitable lithofacien. Diagenesis controlled the formation of reservoir. Based on main-flement analysis, dissolution and bitumen filling affected porosity consumingly and controlled type and capability of reservoir straightly. The effects of compaction and cementation affected type of reservoir on wide category. The liquid factor was the hinge of deposition and diagenesis. It was affected by both of them and controlled type of diagenesis. Even more, it controlled parameters of reservoir straightly.

关 键 词：砂砾岩体 双因素 主成分 流体 

分 类 号：P618.13[天文地球—矿床学]