多次反射折射波的分析与消除

ANALYZING AND ELIMINATING MULTIPLE REFLECTED REFRACTIONS

地质矿产部第四物探大队,新乡453700

The 4th Geophysical Exploration Party, MGMR, Xinxiang 453700

多次反射折射波是地震勘探中的主要干扰波之一,它严重影响了地震资料的质量。本文从其成因、特征和空间变化规律的分析入手,揭示了多次反射折射波空间分布的复杂性及其对深层资料的影响,给出了数据采集阶段消除这种干扰的几种方法,提出了对其进行研究和试验的必要性。

The Multiple reflected refraction is one of main interferences in a seismic exploration,which contributes to the degradation of seismic data's quality significantly. This paper reveals the complexity of. multiple reflected refractions'spatial distribution by analyzing Us genesis, property and the regular pattern of spatial variation and emphasizes the necessity of studying them. Different methods to eliminate such noises are finally suggestsd.