非目标因素对AVO属性叠加的影响  

INFLUENCE OF AIMLESS FACTORS ON AVO ATTRIBUTION SU-PERIMPOSITION

作　　者：雷晓[1] 杨凯[1] 

机构地区：[1]西南石油学院石油勘探系

出　　处：《西南石油学院学报》1993年第2期1-9,共9页Journal of Southwest Petroleum Institute

摘　　要：除了泊松比外,有不少非目标因素会引起振幅随炮检距变化,在AVO属性叠加图上能直观看到它们的影响。AVO的抗干扰性能远低于水平叠加,那些振幅或时差随炮检距单调变化的因素会引起严重的假AVO异常,因此利用AVO方法时,需要作特别精细的叠前处理。Besides Poisson's ratio there are quite a few aimless factors which can cause AVO. One can see their effect directly from diagraphs of AVO attribution superimposition. Anti-inter- rupted ability of AVO is far smaller than horizontal stack. Factors which are of monotonous variation of amplitude and time shift with off-set can form serious spurious anomalies. It is even bigger than those caused dy poisson's ratio so AVO needs peculiar meticulous processing before stack.

关 键 词：数据处理 叠加 地震勘探 地震波 

分 类 号：P631.443[天文地球—地质矿产勘探]