单点地震数据的一致性组合叠加方法  

Consistent array stacking method for single point seismic data.

作　　者：孙成禹[1] 孙甜甜[1] 彭洪超 肖云飞[1] 

机构地区：[1]中国石油大学地球资源与信息学院 [2]东方地球物理公司,河北涿州072751

出　　处：《石油地球物理勘探》2009年第A01期23-28,共6页Oil Geophysical Prospecting

基　　金：国家高技术研究发展计划(2007AA060502);国家重点基础研究发展计划(2007CB209605)资助

摘　　要：为了解决常规野外检波器组合引起的高频振幅衰减、组合内道间差异等方面问题,本文在分析影响组合叠加效果的诸因素基础上,针对单点高密度采集数据,阐述了基于自适应匹配滤波的一致性组合叠加方法;通过构建标准道,采用自适应匹配滤波方法对子波波形和道间时差同时进行一致性校正,改善了组合叠加的效果。校正后地震记录的组合叠加响应能够较好地保持反射波原有的振幅和波形特征。模型和实际资料的处理效果验证了该方法的有效性和可行性。In order to resolve the problem of high frequency attenuation caused by field geophone array and the intra-array differences,after analyzing the factors which affect results of array stacking, a consistent array stacking method which is based on the adaptive matched filtering is introduced for the single point high density acquired seismic data.By constructing the standard traces and applying adaptive matched filtering, a consistent correction were conducted for wavelet waveform and intra-trace time differences, as a result array and stacking effects were improved. The array stacking response of the corrected seismic records can maintain the original amplitude and waveform features of the seismic data. The processing results for the model and real data proved the effectiveness and feasibility of the method.

关 键 词：子波校正 一致性组合叠加 地震数据处理 匹配滤波 高密度数据 

分 类 号：TU398.9[建筑科学—结构工程] P631.443[天文地球—地质矿产勘探]