王思琦;鲜本忠;万锦峰;李振鹏;余琦昌;

• 1:中国地质大学(北京)能源学院

• 2:中国石油大学(北京)地球科学学院

• 3:石大智慧(北京)科技有限公司

• 4:中国海洋石油有限公司天津分公司

摘要(Abstract)：

综合利用岩心、薄片、扫描电镜和物性资料,研究南堡凹陷东营组和沙河街组一段储层特征及其成因机制.结果表明:储层主要为颗粒支撑的长石质岩屑净砂岩;辫状河三角洲前缘水下分流河道、湖底扇中扇水道是研究区物性最好的两类砂体,辫状河三角洲前缘分流河道间、湖底扇中扇水道间及湖底扇外扇的储层质量较差.在埋深3 100m以上和3 500m以下主要受以压实作用为主、以方解石胶结作用为辅的破坏性成岩作用影响;在埋深3 100~3 500m主要受有机质生烃溶蚀孔隙的建设性成岩作用影响.不同沉积相带在同一深度层段的成岩演化规律相似,沉积相带控制同一层段物性,成岩作用只影响不同层段的储层物性.该研究为南堡凹陷滩海地区东营组和沙河街组一段勘探提供地质依据,对其他地区类似储层研究有一定借鉴意义.

关键词(KeyWords)：滩海地区;古近系;储层特征;成因机制;南堡凹陷

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(41172104,41372117)

作者(Author):王思琦;鲜本忠;万锦峰;李振鹏;余琦昌;

Email:

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