Sedimentary Characteristics of Fuyu Oil Layers in Chaochang Region of Songliao Basin

详细信息   

• 责任者：Wang Shibo (State Key Laboratory of Petroleum Geology and Development Engineering ; Chengdu Science and Engineering University ; Chengdu 610059 ; China) ; Li Zhongquan
• 刊名：Petroleum Geology & Oilfield Development in Daqing
• 出版年：2011
• 卷期：30(5)
• 关键词：砂体 ; sand bodies ; 高分辨率层序地层学 ; high resolution sequence stratigraphy ; 沉积相 ; sedimentary facies ; 松辽平原 ; Songliao Plain
• 页码：p.1-7
• 图表：3 illus., 2 tables, 9 refs.
• 分类号：1003
• issnNo：ISSN1000-3754
• isbnNo：CN23-1286/TQ

摘要

By means of the principle of high-resolution sequence stratigraphy, the sequence interface, lake flooded plane and the rise-and-drop cycles of the base level are recognized. In Chaochang region of Songliao Basin, Quan No. 3 and 4 Members are divided into 1.5 three-grade sequences corresponding three rise-and-drop cycles of the base level. And they are classified into 7 four-grade sequences corresponding fourteen rise-and-drop cycles of the base level. Finally the isochronal sequence stratigraphic framework is established and the problem of corresponding relation between the oil reservoir group and sequence formations is solved. On the basis of isochronal sequence classification, the typical sedimentary facies forms of meandering river, delta, lake and so on are determined. The material source from southwest direction is pointed out in the region. The reservoirs are mainly meandering fiver channel sandbodies distributed along NE strike and stacked during many periods.