东海西湖凹陷春晓地区渐新世盆地充填机制探讨

Discussion on Basin-fill Mechanism in Oligocene in the Chunxiao Area of Xihu Trough, the East China Sea

陈琳琳

Chen Linlin

上海海洋石油局规划设计研究院, 上海 200120

Planning & Designing Institute of Shanghai Offshore Petroleum Bureau

本文以西湖凹陷南部春晓地区春晓一井钻井资料为基础,结合地震剖面的层序地层学解释,提出该地区渐新统陆盆充填序列、沉积体系类型及沉积演化阶段划分,并对花港组下部粗碎屑体成因作简要辨析。

Based on drilling data of Chunxiao No.1 well in Chunxiao area, Southern Xihu Trough, and interpreted with sequence stratigraphic analysis of seismic profile, this paper establishes terrigenous basin-fill succession, varieties of sedimentary system and evolution periods of depositional process in Oligocene basin-fills, and briefly discusses various genesis of coarse clastic deposits in the lower part of Huagang Formation.