薄层厚度对叠前地震属性的影响  

Thin-layer Thickness on the Impact of Pre-stack Seismic Attributes

作　　者：孙淑琴[1] 

机构地区：[1]胜利油田物探研究院,山东东营257022

出　　处：《内蒙古石油化工》2011年第12期136-138,共3页Inner Mongolia Petrochemical Industry

摘　　要：本文开展了薄层的叠前地震属性的分析研究,定性分析了薄层厚度对叠前地震属性的影响。薄层叠前正演及分析结果表明,薄层厚度对叠前反射振幅的调谐效应也很明显,并影响了叠前属性的计算。利用薄层厚度对叠前属性的调谐效应可以确定出薄层的厚度。对于小于调谐厚度的薄层,提出应用AVO属性与层厚的近似关系进行层厚估计的思路。This paper studied pre-stack seismic attributes of thin-layer,and qualitatively analyzed the thin-layer thickness on the impact of pre-stack seismic attributes.The forward modeling of the thin-layer and analysis results show that the tuning effect of pre-stack reflected amplitude caused obvious,and thin-layer thickness affected the calculation of pre-stack attribute.Using the tuning effect of pre-stack attributes resulted by thin-layer thickness to determine the thickness of the thin-layer.For the thin-layer less than the tuning thickness,the ideas which made application of the approximate relationship between AVO attributes and the layer thickness to estimate the layer thickness was proposed.

关 键 词：薄层 叠前地震属性 调谐效应 

分 类 号：P631.4+4[天文地球—地质矿产勘探]