在同态法基础上利用合成和迭代技术求取地震子波

EXTRACTION OF THE SEISMIC WAVELETS BY SYNTHETIC AND ITERATIVE TECHNIQUEON THE BASIS OF THEHOMOGRAPHIC METHOD

地质矿产部第四物探大队

目前,同态法在地震资料处理中还不能有效应用的原因之一是分离问题。但同态法由于对地震子波的相位和反射系数不必做特殊的假定,又不受测井资料的限制,因此是非常值得探讨的方法。本文就分离问题进行了初步的探讨,提出了用合成和迭代技术来求取地震子波的办法,从而从理论上初步解决了同态法的分离问题。

At present, the homographic method couldn't still find its way in seismic data processing effectively. The reasons are various. One of which is the problem of split. But because of there is no need to make any specific hypotheses about the phase of the wavelets and the reflection coefficients in this method, and it has nothing to do with the well -log data, hence, it's such a method really worth exploring in a deep going way. In this paper, the author has made a prilimirary study to the problem of split and has pointed out that the wavelets could be extracted by means of the synthetic and iterative technique, thus, found a way in solving the problem of split theoretically.