二次中值滤波法进行VSP波场分离  

VSP WAVE FIELD SEPARATION BY USING SECONDARY MEDIAN FILTER METHOD

作　　者：张伟[1] 王彦春[1] 李洪臣[2] 谭昌勇[1] 王连山[1,3] 

机构地区：[1]中国地质大学地下信息探测技术与仪器教育部重点实验室,北京100083 [2]辽河油田特种油开发公司,辽宁盘锦124010 [3]华北油田分公司,河北廊坊065000

出　　处：《物探化探计算技术》2009年第6期590-593,共4页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家863计划重大项目(2001AA602018)

摘　　要：这里介绍了二次中值滤波的基本原理和处理步骤,具体给出了波场分离的实现方法和西部某工区的具体实例。结果表明,采用二次中值滤波,可有效地去掉谐振干扰,较好地保留了上行波和下行波场信息,提高了后续VSP(Vertical Seism ic Profiling)资料处理的质量,对解决实际资料处理中的问题有重要意义。The basic principles and processing steps of secondary median filter were introduced,and a specific examples in a work area of the western region was illustrated in this paper.The results shows that this method can effectively remove the resonant interference,more better retain the information of up-going wave and down-going wave of VSP data,improve the follow-up processing quality of VSP data processing,and be more significant to solve practical problems in data processing.

关 键 词：上行波 下行波 中值滤波 波场分离 

分 类 号：P631.4[天文地球—地质矿产勘探]