哈南油田阿尔善组油藏储层特征研究

A Study on the Reservoir Characteristics of Aershan Formation(K 1a ) in Hanan Oil Field

以岩石薄片、铸体薄片、毛管压力曲线等分析资料为基础，结合储层物性测井参数解释结果，对哈南油田阿尔善组储层从岩性组成、物性特征、孔隙类型及孔隙结构、非均质性等方面进行了综合评价，认为该储层为一套中低孔、中低渗储层，其物性主要受沉积微相、成岩后生作用和构造应力等因素影响，其层内、层间和平面非均质性均较强。最后综合储层的岩性、物性、成岩后生作用和孔隙结构等特征，对哈南油田阿尔善组储层进行了分类，将其划分为四大类。

According to rock thin slice, capilliary pressure curve, together with log interpretation results of physical properties, Aershan formation in Hanan Oil Field is evaluated in the aspects of rock composition, physical properties, pore type, pore structure and heterogeneity. It is held that the formation is a reservoir of middle low porosity and permeability. Its physical properties is mainly influenced by sedimentary microfacies, diagenesis and structural stress. There are stronger heterogeneity in layers, between layers and on planes. Based on the study of its lithology, physical properties, diagenesis and pore structure, the reservoir is classified into four types. Subject headings: reservoir characteristic, physical property, pore type, pore structure, hetorogeneity, Hanan Oil Field