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.
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)
出处
《重庆科技学院学报（自然科学版）》
CAS
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)。
关键词
鄂尔多斯盆地
延长组
页岩油
主控因素
储层分类
Ordos Basin
Yanchang Formation
shale oil
main controlling factor
reservoir classification
