根据构造圈闭类型、圈闭分布规律、储集层类型和发育规律等,里海巨型盆地可分为三大地质板块:北里海(主要是滨里海)、中里海和南里海。通过分析这三大地质板块的地球动力特征发现,其构造形成的地球动力史有很大不同,这就决定了沉积盖层的构造和其含油气性。 According to the structure traps, trap distribution, reservoir types and development rules, the Caspian Sea basin can be divided into three major geological sections: Beilihai (mainly the Caspian Sea), Zhonglihai and the South Sea. By analyzing the geodynamic characteristics of the three major geological blocks, it is found that there is a great difference in the geodynamic history of the earth formed by the structure, which determines the structure of the caprock and its petroleum-bearing properties.