摘要
To develop and improve the reservoir forming theory of superimposed basins,this paper summarizes the progress in the study of superimposed basins and predicts its development direction.Four major progresses were made in the superimposed basin study. The study direction of hydrocarbon accumulation in superimposed basins mainly includes three aspects:1) the study on modes of controlling reservoir by multiple elements;2) the study on composite hydrocarbon-accumulation mechanism; and 3) the study on hydrocarbon reservoir adjustment and reconstruction mechanism and prediction models,which has more theoretical and practical significance for deep intervals in superimposed basins.