异常噪声对叠前多道处理效果的影响  

The impact of abnormal noises to prestack mutichannel processing

作　　者：蔡希玲[1] 赵波[1] 贺振华[2] 黄德济[2] 

机构地区：[1]石油地球物理勘探局研究院,河北涿州072750 [2]成都理工学院,四川成都610059

出　　处：《石油物探》2002年第1期84-87,共4页Geophysical Prospecting For Petroleum

摘　　要：记录中的猝发脉冲、漏电感应及 5 0Hz工业频率干扰等异常噪声具有能量和频率异常、出现位置不规则及分布随机的特点 ,是叠前数据中普遍存在的噪声。通过理论和实际数据的分析表明 ,异常噪声对叠前多道处理 (如地表一致性振幅补偿及叠前随机噪音衰减等 )的影响不容忽视 。The abnormal noises, such as burst pulse, electricity inflection, and interference of 50Hz industrial frequency, are common in prestack seismic data. Their energy, frequencies, and dispositions are different from that of seismic signals. This paper illustrates with both synthetic and real data that the impact of the abnormal noises to prestack multichannel processing can not be ignored. It is necessary to do detailed analysis on prestack data and perform effective noise suppression to guarantee the quality of data processing.

关 键 词：异常噪声 叠前多道处理 效果 影响 油气勘探 地震勘探 信噪比 地表一致性处理 振福补偿 随机噪声衰减 

分 类 号：P631.443[天文地球—地质矿产勘探] P618.13[天文地球—地质学]