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探究彬县-旬邑地区长9储层成岩作用,为区内石油勘探及开发提供参考。通过对长9储层岩石学特征、成岩作用类型、成岩阶段划分、成岩序列分析,在储层沉积相研究的基础上,运用岩心观察、铸体薄片、扫描电镜及测井等资料对储层进行综合分析,分析结果显示,研究区储层成岩作用主要有压实(溶)作用、胶结作用、泥质充填作用、溶蚀作用、交代作用等,目前研究区延长组长9油层组主要出于晚成岩A期。
Explore the diagenesis of Chang 9 reservoir in Binxian-Xunyi area, and provide references for oil exploration and development in this area. Based on the petrological characteristics of Chang 9 reservoirs, diagenesis types, diagenetic stage division and diagenetic sequence analysis, based on the study of reservoir sedimentary facies, the authors used core observation, cast thin section, scanning electron microscopy and logging data to analyze the reservoir According to the comprehensive analysis, the results show that the reservoir diagenesis in the study area mainly consists of compaction (dissolution), cementation, mud filling, dissolution and metasomatism. At present, Late diagenetic A phase.