鄂尔多斯盆地页岩油储层研究——以上里塬地区长7段为例  

Research on Shale Oil Reservoir in Ordos Basin:Taking Member 7 of Yanchang Formation in Shangliyuan Area as an Example

作　　者：王媛媛 王克 杨兆林 战沙 WANG Yuanyuan;WANG Ke;YANG Zhaolin;ZHAN Sha(School of Earth Sciences and Engineering,Xi'an Shiyou University,Xi'an 710065,China;Key Laboratory of Shaanxi Province for Petroleum Accumulation Geology,Xi'an 710065,China;Exploration and Development Research Institute of Changqing Oilfield Company,PetroChina,Xi'an 710018,China)

机构地区：[1]西安石油大学地球科学与工程学院,西安710065 [2]陕西省油气成藏地质学重点实验室,西安710065 [3]中国石油长庆分公司勘探开发研究院,西安710065

出　　处：《重庆科技学院学报（自然科学版）》2022年第3期22-28,44,共8页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家重点基础研究发展计划(973)项目“中国陆相致密油(页岩油)形成机理与富集规律基础研究”(2014CB239003)。

摘　　要：根据鄂尔多斯盆地上里塬地区页岩油资源的地质特征,将其储层划分为多期砂体叠置夹薄泥层、薄砂与泥砂岩互层和纯页岩等3种类型,并分析各类页岩油储层的特征。上里塬地区延长组7段(长7段)为热演化程度适中的优质烃源岩,富含有机质,有机碳平均含量为6.06%,有机质类型以生油为主。长7_(1)和长7_(2)亚段发育大面积连片,具有较厚的砂体,物性相对较好,为油气聚集成藏提供了基础条件。According to the geological characteristics of shale oil resources in Shangliyuan area of Ordos Basin,it is divided into three types of shale oil:Ⅰ-multi-stage sand body superimposed thin mud layer,Ⅱ-thin sand,mudstone interbed and Ⅲ-pure shale,and its characteristics are described.Member 7 of Yanchang formation in Shangliyuan area is rich in organic matter,with the average TOC content of 6.06%.The types of organic matter is mainly oil generation,and they are high quality source rocks with moderate thermal evolution.Chang 7_(1) and Chang 7_(2) are developed in a large area and have thick sand bodies with relatively good physical properties,which provide basic conditions for oil and gas accumulation.The good source-reservoir configuration is the key factor of reservoir formation.

关 键 词：鄂尔多斯盆地 延长组 页岩油 主控因素 储层分类 

分 类 号：P618[天文地球—矿床学]