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通过岩心分析及镜下观察等研究,认为郑庄油区长6油层组储层岩石成分以长石砂岩为主,岩石成分成熟度低,结构成熟度中等,储层物性以低孔、低—特低渗为主,储层展布主要受沉积相控制,沉积类型为三角洲前缘亚相沉积,水下分流河道微相是该区的主要储集岩相。长6油层组浊沸石溶蚀作用比较发育,对改善储层物性起到关键性作用。
Through core analysis and microscopic observation, it is considered that the rock components of Chang 6 reservoir in Zhengzhuang oil region are mainly feldspar sandstone, with low maturity of rock composition and moderate maturity of structure. The reservoir physical properties are characterized by low porosity, low porosity and low porosity, It is dominated by ultra-low permeability. The reservoir distribution is dominated by sedimentary facies. The sedimentary type is delta front sedimentary subfacies, and the sub-distributary channel microfacies are the major reservoir facies in this area. The Chang 6 oil-bearing group laze zeolite has comparatively well-developed dissolution and plays a key role in improving reservoir physical properties.