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通过对克百断裂下盘二叠系碎屑岩储层的研究,发现储集岩主要是细砾岩和砂砾岩;同时,研究区储集岩的物性以夏子街组为好,风城组和下乌尔禾组较差;在此基础上,结合岩心资料,通过薄片分析及扫描电镜分析,研究了成岩作用对研究区砂砾岩储层物性的控制作用:压实作用是储层物性最主要的破坏性成岩作用;受胶结物含量不同的控制,胶结作用对储层物性具有双重作用;溶蚀作用是研究区产生次生孔隙和裂缝,并具有连通作用的最重要的建设性成岩作用。
By studying the Permian clastic reservoirs in the lower Permian of the K-100 fault, it is found that the reservoir rocks are mainly conglomerate and conglomerate. Meanwhile, the physical properties of the reservoir rocks in the study area are good for the Xiazijie Formation and the Fengcheng Formation And the Lower Wuerhe Formation. On the basis of this, combined with the core data, through the analysis of thin sections and scanning electron microscopy, the diagenesis was studied to control the physical property of glutenite reservoirs in the study area: Compaction is the most The main destructive diagenesis; controlled by different cements, cementation has a dual role on reservoir physical properties; and dissolution is the most important and constructive diagenesis that produces secondary pores and fractures in the study area and has connectivity.