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基于普通薄片及铸体薄片鉴定分析、图像分析及压汞测试,本文对陈3断块阜宁组一段储层的岩石学特征、物性特征、微观孔隙结构及成岩作用等方面进行了研究并探讨了工区储层的控制因素。研究认为,阜宁组一段储层岩石类型主要为长石岩屑质石英粗粉砂岩,属于中孔中渗储层。本区受压实作用,胶结作用及强烈的溶蚀作用,储集空间以溶蚀粒间孔为主,喉道类型以较细喉道和中喉道为主,储层的形成主要受岩石组构及成岩作用的控制。
Based on the identification and analysis of ordinary thin slices and cast thin slices, image analysis and mercury intrusion test, the petrological characteristics, physical properties, microscopic pore structure and diagenesis of the first member of Funing Formation in Chen 3 block are studied and discussed The controlling factors of reservoir area. According to the study, the first type of reservoir rocks in the Funing Formation is mainly feldspar-bearing quartzite siltstone, which belongs to the medium-porosity and medium-permeability reservoir. The area is compacted, cemented and strongly eroded. The reservoir space mainly consists of intergranular intergranular pores. The throat type is dominated by fine throat and middle throat. The formation of the reservoir is mainly dominated by the rock structure And diagenetic control.