SRME技术在浅剖资料多次波压制中的应用

Application of SRME to multiple attenuation in shallow profile seismic data

与其他海上资料一样,多次波也是浅剖资料中存在的突出问题.多次波的去除对提高浅地层剖面的质量具有重要的意义.SRME技术是一种衰减自由表面多次波较为有效的方法,目前已在海上多道地震资料多次波压制中得到广泛应用,但在单道或浅剖资料中的应用还比较少,将该方法应用于浅剖资料处理中能否取得好的多次波压制效果是一个值得去验证的问题.本文阐述了SRME技术的基本原理,并采用模型数据对其主控参数进行了试验,最后将SRME技术应用于实际浅剖资料的多次波衰减处理中,它有效地消除了资料中的多次波,验证了该方法对浅剖资料多次波压制的有效性和实用性,通过与浅剖资料处理中常用的预测反褶积方法去除多次波的效果相比,SRME更具优势.

Like other marine seismic data, multiple is also a highlight problem in shallow profile seismic data. It is important to eliminate multiple in shallow profile. SRME is a useful method to eliminate the surface related multiple,and has been widely used in marine multichannel seismic data multiple attenuation, but that application in single channel or shallow profile data is still relatively less,the issue whether obtaining a good multiple suppression effect in shallow profile data processing with applying SRME is worth to verify. This paper states the basic principle of SRME,uses model data to test its main parameters,and finally applies SRME in the actual data processing,the multiple has been eliminated effectively,those confirmed the effectiveness and practicality of this method for multiple suppression in shallow profile seismic data. SRME has more advantages compared with predictive deconvolution that is usually used in processing of shallow profile seismic data.