【摘要】 面波是一种很强的规则干扰波,在三维单炮记录的远炮点排列上呈现为抛物线形,用常规的二维滤波技术无法对抛物线顶部进行压制。近年来发展起来的三维锥形滤波技术克服了二维滤波技术的不足,能够在不损害有效信号的基础上有效去除面波,提高资料的信噪比。论述了三维锥形滤波的原理和方法,并首次将此技术应用到川东北地震资料处理中。更多还原

【Abstract】 Surface wave is a regular one with strong capability of interference.It presents a parabola in far shot-point arrangement of 3-D single shot record.The parabola top can not be suppressed by 2-D filter.A new technology of 3-D conical filter developed recently can overcome the shortcomings of the 2-D one.It can not only remove surface wave efficiently without destroying effective signal but also raise SNR.This paper illustrates the principle of 3-D conical filter,and applies it the first time to seismic-data processing of northeastern Sichuan Basin.This technology suppresses surface wave in parabola-shape and gets over the shortcoming of 2-D filter which can remove linear noise only 。更多还原