关键词: 储层特征, 胜坨油田, 沉积类型, 辫状河砂体, 渗透率, 开发效果, 油层, 冲积扇, 储层特点, 沙二段

Abstract: It is a very important task in oil field geology and development to study oil storage sand bodies of different types and reservoir characte ristics.This paper has analized the depositional types of sand bodies in Shengtuo oil field,classified into six kinds of sedimentary sand bodies and described the reservoir characteristics of these sand bodies.Sands and conglomerate bodies of alluvial fan mud and stone stream:mixed with sand,conglomerat and mud,the connection between pores axe not well,so reservoir property is poor and there is less possibility for production;Braided steam sand bodies:Grains axe coarse.Pores texture is fine.The radius of porous channels are large and porous connections are well.The highest permeable beds have permeated all parts of the reservoir so producing capacity is high;Sand bodies of river mouth bar in delta front:Grains are fine and well sorted,pores are small and connect well.permeability is low.The reservoir is thick.Production capacity is great;Turbidity sand body:Grains axe medium size.Lithology is even.pores connect well.High permeable beds are in the middle and lower parts of the reservoir so the reservoir is a high oil production zone.