伊犁盆地压制地震多次波处理方法试验

Study of seismic multiple rejection in Yili basin

中国石化集团中原油田分公司勘探开发科学研究院, 河南濮阳457001

Exploration and Development Institute of Zhongyuan Oilfield Company, SINOPEC, Puyang 457001,China

伊犁盆地地质条件特殊,受其影响,地震剖面中、深层多次波发育,有效波难以识别,相应地层构造情况不清,使得对主要目的层的地质构造认识受到很大限制。针对这一情况,采用拉冬滤波、F-K滤波以及多次波减去法等多种手段进行压制多次波处理方法研究,取得了一定的效果.

The seismic sections from Yili basin are rich in multiples from the middle and deep because of the complicated geological settings of Yili basin. It is difficult to identify significant waves and structural-stratigraphic patterns on these sections. To overcome this problem, several methods such as Radon filtering, F-K filtering, and multiple subtraction are used in suppression of multiple waves. Desired results have been reached.