近两年来一直很重视井下地震资料波场分离领域方面的研究,已发表了许多关于各种波场分离方法的文章。这些方法包括二维傅里叶变换,拉冬变换、多级介质滤波或最佳滤波等,它们都可作为解决波场分离问题的可能方法。文中对地震勘探中某些常用的波场分离方法进行了对比。文章介绍了这些方法的理论,以便使我们了解它们之间的关系。将各种方法用于合成和实际资料,说明了这种理论关系如何反映在比较相似的结果中。文中还说明了不 In the past two years, great attention has been paid to the research on the field separation of downhole seismic data. Many articles on various wavefield separation methods have been published. These methods include two-dimensional Fourier transform, Laplace transform, multi-level dielectric filtering, or optimal filtering, all of which can be used as a possible solution to the problem of wavefield separation. In this paper, some commonly used methods of wave field separation in seismic exploration are compared. The article introduces the theories of these methods so that we can understand the relationship between them. The use of various methods for synthesis and factual data shows how this theoretical relationship is reflected in the more similar results. The article also shows no