薄层厚度对叠前地震属性的影响

英文篇名：Thin-layer Thickness on the Impact of Pre-stack Seismic Attributes
中文刊名：内蒙古石油化工
英文刊名：Inner Mongolia Petrochemical Industry
作者：孙淑琴
英文作者：SUN Shu-qin(Geophysical Research Institute of Shengli Oil Field ; Dongying 257022 ; China)
中文关键词：薄层 ; 叠前地震属性 ; 调谐效应
英文关键词：Thin-layer ; Pre-stack seismic attributes ; Tuning effect
出版日期：2011-06-30
机构：胜利油田物探研究院;
年：2011
期：12
出版单位：内蒙古石油化工

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.

引文

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