河流相储层构型要素组合对剩余油分布影响  

ARCHITECTURAL-ELEMENT COMBINATION IN FLUVIAL FACIES RESERVOIR EFFECTS ON REMAINING OIL DISTRIBUTION

作　　者：齐陆宁[1,2] 杨少春[1] 林博[2] 

机构地区：[1]中国石油大学(华东)地球资源与信息学院,山东东营257061 [2]中国石化胜利油田分公司海洋采油厂,山东东营257237

出　　处：《新疆地质》2010年第1期69-72,共4页Xinjiang Geology

基　　金："十五"国家重点攻关项目"大中型油田勘探开发关键技术研究"(2003BA613A-02)资助

摘　　要：以胜坨油田二区沙二段34层为例,研究不同储层构型要素组合对剩余油分布的影响,为深入研究构型要素控制剩余油分布规律奠定了基础.通过对7口取心井的观察和分析,利用密井网条件下丰富的测井资料,划分出7种构型要素.其中心滩、河道充填沉积为好的构型要素,其余的为差构型要素;空间上,将构型要素分为6种不同组合形态,即:好-好-好型;好-好-差型;好-差-好型;好-差-差型;差-好-差型;差-差-差型.研究认为,构型要素空间组合影响剩余油的分布和富集效果.剩余油主要富集于差构型要素内部、好构型要素与差构型要素交界处及好构型要素内部渗流性能较差处.Taking the 34layer, segment 2 of Shahejie Formation, Shengtuo oilfield, being as an example, studying the different rules that different architectural-element combinations have effected on remaining oil distribution, so as to improve the quality of both reservoir fine classification and remaining oil distribution law. On the basis of analysis and assay on 7 coring holes and taking many factors such as lithology, sediment feature, electrical feature into account, 7 architectural-elements are established. Channel charge and channel bar are regarded as good architectural-elements, other are bad architectural-elements, Six various kinds of architectural-element combinations are divided as follows： good-good-good type; good-good-bad type; good-bad-good type; good-bad-bad type; bad-good-bad type; bad-bad-bad type Study reveals that architectural-element combinations of this reservoir can effect on the remaining oil distribution effectively. Remaining oil are mainly collected in some areas such as interior of bad architectural-element; interface among bad and good architectural-elements; relatively poor permeability in interior of good architectural-element and so on. The remaining oil saturation is higher in bad architectural-element and reduces gradually in the direction of good architectural-element.

关 键 词：河流相 构型要素组合 随机建模 剩余油分布 

分 类 号：P618.130.21[天文地球—矿床学]