用样点空间调序法消除多次波

本文对Bruland等人提出的地震道样点空间调序方式^2]作了改进.新的调序方式可根据干扰波情况和处理目标确定合适的步长,在保持样点空间调序要求的条件下,克服了前人方法中对空间步长取值的限制和同一个输入道的样点在输出道集上相距太近的缺点,这样就扩大了该方法的应用范围.通过对理论模型数据和实际地震资料的试验表明,样点空间调序加中值滤波方法对压制和消除多次波是行之有效的,而且叠加剖面的结果有十分明显的改善,比用f-k滤波的效果好得多.

Multiple wave suppression using intertrace sequence regulation of seismic samples

Intertrace sequence regulation scheme of seismic samples (Bruland et al) is revised here. My sequence regulation method has the following essentials: 1) determining proper step size in the light of noises and data processing target,2) avoidingboth the previous limitation on intertrace step size and the too dense output samples which were less dense on the relevant input trace under the requirements of intertrace sequence regulation,and 3) wider applications.Theoretical modeling and seismic data results show that mid value filtering plus the intertrace sequence regulation.of seismic samples is very effective on elimination of multiple waves, and obviously improves stacked sections. The method is muchbetter than f-k filtering.