叠前面波干扰压制方法的研究与应用  

PRE-STACK SURFACE WAVE SUPPRESSING: METHODS AND APPLICATION

作　　者：牛滨华[1] 吕景贵[1] 孙春岩[1] 黄新武[1] 章明昱[1] 沈操[1] 吴亚东[1] 

机构地区：[1]中国地质大学工程技术学院,北京100083

出　　处：《现代地质》2001年第3期326-332,共7页Geoscience

基　　金：国家自然科学基金项目 ( 499740 2 8) ;海洋"八六三"项目 ( 0 3 1;0 3 0 2 ;0 5 0 2 ) ;海洋"八六三"天然气水合物项目 ;同济大学国家重点实验室项目

摘　　要：结合大庆油田某工区面波能量的时间和空间的分布特点 ,分析归纳了面波的 3种主要类型。在重点考虑有效信号特征的基础上 ,充分利用计算机技术处理的交互功能 ,采用了视速度变换、奇异值分解、自适应振幅均衡等方法 ,研制开发了有针对性的处理软件模块。通过数据处理 ,获得了较好的实际应用效果。Surface wave suppressing is always one important step to improve the S/N ratio in onshore seismic data. Considering the complexity of real surface wave field, some effective methods are used or developed to suppress it. In this paper, real data from Daqing Oil Field are used to analyze this problem. According to the characteristic of time and space distributions of surface wave energy in seismic data, surface wave is classified into three dominant types. Taking full advantage of the characteristic of desired signal and the interactive functions of computer processing technology, several methods are implemented, such as apparent velocity transformation, SVD,and adaptive amplitude equivalence. Several pertinent processing software modules are developed. Real data examples show their validity and applicability. This achievement can be used for reference in similar survey.

关 键 词：面波压制 视速率变换 奇异值分解 自适应振幅均衡 地震勘探 视速率变换 

分 类 号：P631.4[天文地球—地质矿产勘探]