Sedimentary Evolution and Depositional Model of Paleogene Sublacustrine Fan in the Northwest of Huanghekou Sag: Case Study on the Down Member 3 of Shahejie Formation
详细信息
- 责任者：Jv Yongtao (School of Marine Geosciences ; China University of Geosciences ; Beijing 100083 ; China) ; Liu Hao
- 刊名：Journal of Daqing Petroleum Institute
- 出版年：2012
- 卷期：36(1)
- 关键词：砂体 ; sand bodies ; 沉积演化 ; sedimentary evolution ; 沉积相模式 ; sedimentary facies model ; 黄河口 ; Yellow River Mouth
- 页码：p.8-13,30
- 图表：9 illus., 19 refs.
- 分类号：1003
- issnNo：ISSN1000-1891
- isbnNo：CN32-1297/TE
摘要
Through studying the formation mechanism,the main control factors,the lithology,logging curve features and seismic reflectance signature in the lower Member 3 of Shahejie Formation in Huanghekou Sag,it was found that the oil-bearing sand bodies in the Area A belonged to two kinds of sublacustrine fan deposition formed under semi-deep-lake to deep-lake environment.Deposition of the deep-water turbidite sublacustrine fan corresponded to low stand system tract;deposition of the slump turbidite sublacustrine fan corresponded to transgressive system tract and high stand system tract,which was formed by slumping delta front sand.As a matter of fact,different tectonic background,lake level changes and provenance could result in different position,shape and size of sublacustrine fan.
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