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本文从研究方法的角度,总结了近年来对东海陆架盆地层序地层研究的部分成果。(1)确定和完善了瓯江凹陷和西湖凹陷的层序格架。(2)分析了这两个凹陷中主要油气目的层段的体系域发育情况,即在瓯江凹陷中分析了盆地发育初期(T_6~0～T_5~0)两个层序的体系域发育情况,以及T_5~0～T_3~0中海相层序的体系域发育情况;在西湖凹陷中分析了海陆过渡相层序(T_3~1～T_3~0)和陆相层序(T_3~0～T_2~1)的体系域发育情况。(3)总结了体系域与油气之间存在的关系;指出了非构造圈闭可能存在的位置,为进一步的油勘探提供依据。
In this paper, we summarize some achievements in the study of sequence stratigraphy of the East China Sea Shelf Basin in recent years from the perspective of research methods. (1) The sequence framework of Oujiang Sag and Xihu Sag has been identified and improved. (2) The phylogenetic analysis of the major hydrocarbon-bearing layers in these two depressions was analyzed. The evolution of the phylogenetic domain of the two sequences in the basin development (T_6 ~ 0 ~ T_5 ~ 0) was analyzed in the Oujiang Sag (T_3 ~ 1 ~ T_3 ~ 0) and terrestrial sequence (T_3 ~ 0 ~ T_2) in the Xihu sag ~ 1) system domain development. (3) Summarized the relationship between system tract and oil and gas; pointed out the possible location of non-structural traps, providing the basis for further oil exploration.