摘要
东营凹陷南斜坡沙河街组四段上亚段滨浅湖滩坝相砂体分布规律复杂、预测难度大,高分辨率层序地层学因为存在高级别层序划分标准不严格的问题,难以形成统一的精细等时地层格架。借用米氏旋回地层学研究方法识别出的米氏旋回作为天然时间标尺,对该地区博15井、官9井和王94井沙四上地层进行了米氏旋回高级别层序划分与对比,所获得的高级别层序地层格架不受人为因素的影响,且能合理地解释地层的形成环境、预测有利砂体的分布规律,因而是有效且准确的。
The spatial distribution of sandstone of the 4 th Member of Shahejie Formation in the Dongying Depression is poorly understood.High-resolution sequence stratigraphy has been successfully applied in the exploration of oil and gas,but the accuracy of high-order sequence division and correlation of the 4 th Member of Shahejie Formation remains low because of the lack of high-resolution chronostratigraphic standards.However,Milankovitch cycles can be used as a criterion for fourth-order,fifth-order or sixth-ord...
出处
《地层学杂志》
CSCD
北大核心
2008年第3期278-284,共7页
Journal of Stratigraphy
基金
国家自然科学基金项目(No40542007)研究成果
关键词
米氏旋回
高级别层序
滩坝
沙河街组
古近纪
东营凹陷
山东
Milankovitch cycle
high-order sequence
Shahejie Formation
Paleogene
Dongying Depression
Shandong Province
