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概述在地震资料处理中,继多次复盖技术之后偏移迭加受到了相当高的评价。在一些多次复盖成效低的复杂构造地区,例如大倾角、断裂带、礁块等,偏移迭加能够给出比较清晰的地下构造图象。多次复盖是以射线理论为根据,对水平反射界面获得共反射点迭加的。在迭加过程中虽能削弱随机干扰及与反射波正常时差不一致的规则干扰,增强一次反射,但不能
Overview In seismic data processing, the offset superposition is subjected to quite high evaluation following the multiple cover technique. In some complex tectonic areas with low coverage, such as large dip angle, fault zone and reef block, the offset superposition can give a clear image of the underground structure. Multiple coverage is based on the ray theory, the horizontal reflection interface to obtain the total reflection point superposition. Although in the process of superposition can weaken the random interference and reflected waves with the normal time difference is not consistent with the regular interference, enhance the primary reflection, but not