Sequence Stratigraphy Characteristics and Sedimentary Model of Lower Es4 on the South Slope of Dongying Depression
详细信息
- 责任者：Yang Yongqiang (College of Earth Resource and Information ; China University of Petroleum ; Qingdao 266555 ; China) ; Qiu Longwei
- 刊名：Geology in China
- 出版年：2011
- 卷期：38(1)
- 关键词：沉积相模式 ; sedimentary facies model ; 层序地层学 ; sequence stratigraphy ; 沙河街组 ; Shahejie Formation ; 东营凹陷 ; Dongying Sag
- 页码：p.33-42
- 图表：8 illus., 10 refs.
- 分类号：0803
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
摘要
In recent years, the south slope of Dongying Depression has become the focus of the exploration target. Due to its special stratigraphic formation, the study of sequence stratigraphy and sand origin of the study area is relatively weak. Using V-C formation analysis, the authors have divided the study area into two sequences on the basis of sequence boundaries, well logging curve, seismic reflective characteristics and palaeontological features. The sequence can be subdivided into two mid-cycles according to the stacking patterns of stratigraphy as well as changes of lithology and lithofacies. The evolution and distribution of sedimentary faces of lower Es4 on the south slope of Dongying Depression is analyzed in this paper, and the sedimentary model is established.