提高基性盐层构造准备的质量是里海沿岸盆地的地球物理勘探的主要任务之一。对此盆地东部和北部边缘一些地区上地震构造和钻井资料,可以证明,地震勘探资料和钻井资料存在着本质上的差别。因此,分析产生地震构造误差的原因,对于选择最佳工作方法具有很大的意义。决定地震构造误差的基本因素是:缺乏可靠的对比,缺少必要的介质速度模型资 One of the main tasks of geophysical prospecting in the Caspian basin is to improve the quality of the preparatory tectonics of the basal salt layer. Seismic tectonics and drilling data on some parts of the eastern and northern margins of the basin may prove that there are essential differences between seismic exploration data and drilling data. Therefore, analyzing the causes of earthquake structural errors is of great significance for choosing the best working method. The basic factors that determine the seismic structural error are: lack of reliable contrast, lack of the necessary medium velocity model