东海盆地西湖凹陷Q构造储层成岩作用研究  

Research on diagenesis of Q structure reservoir in Xihu sag,East China Sea basin

作　　者：李喆[1] 王乐闻[1] 马成君 袁竞[1] 庄建建[1] 王岭[1] 

机构地区：[1]中国石化上海海洋油气分公司勘探开发研究院,上海200120 [2]中国石油东方地球物理公司辽河物探分公司国际项目管理中心,辽宁盘锦124000

出　　处：《油气藏评价与开发》2016年第5期5-10,共6页Petroleum Reservoir Evaluation and Development

摘　　要：利用岩心壁心实测分析化验资料,运用薄片鉴定、扫描电镜、X衍射、粒度分析、包裹体测定、压汞分析、物性分析等技术方法,对该构造储层特征、成岩作用类型、成岩演化序列及成岩阶段进行分析研究。结果表明:该构造储层主要位于中成岩阶段A期,成岩作用类型主要是压实作用、胶结作用、溶蚀作用。最后根据上述研究结果,分析得出黏土矿物的胶结作用是导致深层砂岩储层物性变差的主要原因,经溶蚀作用形成的次生孔隙是改善储层物性的关键因素。通过研究储层物性与成岩作用的关系,寻找深部优质储层,为预探井井位部署提供依据。Based on laboratory data analysis of core, through technical methods of thin section analysis, scanning electron, X-ray diffraction, grain size analysis, inclusion measure, mercury intrusion analysis and physical property analysis, this paper analyzes structural reservoir characters, diagenesis types, diagenesis evolutionary sequences and diagenesis phases. The result shows that Q structure reservoir is mainly in stage A of middle diagenetic stage and its main types of diagenesis are compaction, cementation and denudation. According to the research, it concludes that cementation is the main reason to cause poor physical properties of deep sandstone reservoir, and secondary porosity by denudation is the key factor to improve properties. By the analysis of properties and diagenesis, the deep good reservoir is found, thereby providing actual basis for well deployment of exploratory well.

关 键 词：西湖凹陷 储层 成岩作用 成岩阶段 

分 类 号：TE122.2[石油与天然气工程—油气勘探]