【摘要】 为解决地震数据处理中的多次波问题,研究了散射成像衰减多次波方法,分析了该方法的基本原理、实现步骤以及实际应用效果。散射成像方法主要是根据散射波的波场特征及散射理论,利用共散射点的等效偏移距道集对地下地质体进行偏移成像。基于共散射点道集(CSP)成像时,每炮利用了多道信息,而在CSP道集中,仅入射角等于反射角的少数道含有多次波,因此,散射成像具有衰减多次波的特性。实际应用表明,该方法在衰减多次波方面效果明显。更多还原

【Abstract】 In order to attenuate multiples in seismic data processing, scattering imaging in attenuating multiples was studied.The prin- ciples,realizing methods and actual application results of the meth- od were analyzed.Scattering imaging is based on the wavefield characterisitics and scattering theory,utilizes the equivalent offset of common scattering point gathers to image the subsurface geolog- ic bodies.In the imaging based on CSP,every shot uses more in- formation.But in CSP gathers,multiples can be received when the incident angle is equal to the reflected angle.Thus,scattering ima- ging can attenuate multiples.Actual application shows that the method is effective in multiples attenuation.更多还原