东营凹陷沙四上亚段滩坝物源体系  

Beach Bar-Provenance System on the Upper Part of Fourth Member of Shahejie Formation,in Dongying Sag

作　　者：杨勇强[1] 邱隆伟[1] 姜在兴[2] 白凤坤[3] 

机构地区：[1]中国石油大学地球资源与信息学院,山东青岛266555 [2]中国地质大学能源学院,北京100083 [3]中石化胜利油田胜利采油厂,山东东营257061

出　　处：《吉林大学学报（地球科学版）》2011年第1期46-53,共8页Journal of Jilin University：Earth Science Edition

基　　金：国家油气重大专项(2008ZX05009-002);中国石油大学(华东)博士创新基金项目(Z10-02)

摘　　要：滩坝是东营凹陷沙四上亚段的一个重要沉积体系。根据岩石中岩屑组分的类型及组合特征、砂岩成分成熟度、砂体展布方向及古地理格局等对东营凹陷沙四上亚段进行了物源体系的研究。研究区存在9大物源体系,其中广饶凸起、鲁西隆起、滨县凸起和高青三角洲为滩坝的形成提供了物源。根据物源与滩坝的关系,将研究区划分为基岩-滩坝物源体系、正常三角洲-滩坝物源体系、扇三角洲-滩坝物源体系;由于物源的性质、供给强度的不同,造成滩坝在宏观展布和储层特征上存在明显差异。The beach bar sandstone is an important depositional system of the upper part of Fourth Member of Shahejie Formation in Dongying sag.The systems of sediment supply of Es4 upper-part in Dongying sag are discussed on the basis of the types of lithic grains and microscopic characteristic,compositional maturity of sandstone,sandstone distribution and palaeogeographic framework.There are nine provenance systems in the region of interest,and Guangrao bulge,Luxi uplift,Binxian bulge and Gaoqing delta supply the material.In accordance with the relationship between sediment supply and beach-bar,it is divided into bedrock-beach bar provenance system,delta-beach bar provenance system,fan delta-beach bar provenance system in the region.Because of difference of the nature and supply strength,it results in significant differences in macro-distribution and reservoir characteristics of beach bar.

关 键 词：东营凹陷 沙四上亚段 滩坝 物源体系 油气 

分 类 号：P618.13[天文地球—矿床学]