庙高寺——二里场嘉陵江组溶蚀孔隙型储层特征分析

在该区嘉陵江组沉积特征研究基础上，通过岩心和岩石薄片观察得出不同类型的储集岩及储集空间类型均具有多样化的特点。识别出了滩相颗粒云岩溶蚀孔隙型、潮坪相晶粒云岩溶蚀孔隙型、泻胡相云岩溶蚀孔隙型、滩相颗粒灰岩溶蚀孔隙型等四种不同成因类型的溶蚀孔隙型储层。由这四种类型储层的孔、渗特征的关系研究得出：沉积环境和成岩作用是控制和影响其储集性性能的主要因素。

Character and Comparison of the Carbonate Dissolved-Porosity Reservoirs of the Jialingjiang Formation in Miaogaosi-Erlichang Area

Based on the knowledge of depositional background of Jialingjiang formation , different types of reservoir rock and reservoir space can be identified, through the observation of cores and rock slices. It can be drawn that the types of the reservoir rock and the reservoir permeability spaces are variegated in this region. From the perspective of the causes, four different types of dissolved-- porosity reservoirs can be easily dentificd： Beach facies grained dolostone dissolved--porosity reservoir.Beach facies grained limestone dissolved--porosity reservoir.tidal--flat facies crystallized dolostone dissolved--porosity reservoir and lake facies dolostone dissolved--porosity reservoir. Based on the research of porosity and permeability, characteristics and their relationships, the physical property of four dissolved- porosity reservoirs are getting worse and worse one by one . The reason is that they are controlled and influenced by sedimentaryenvironments and diagenesis.