浅析弹性阻抗  

Development of Elastic Impedance

作　　者：滑彩虹[1] 龙用 潘光超[1] 

机构地区：[1]中国地质大学资源学院石油系,武汉430074 [2]东方地球物理公司采集技术支持部,河北涿州072656

出　　处：《工程地球物理学报》2007年第2期131-134,共4页Chinese Journal of Engineering Geophysics

摘　　要：本文详细叙述了弹性阻抗的发展,对弹性阻抗的各个概念的出发点和侧重点进行了深刻的剖析;并对弹性阻抗递推反射系数的精度、弹性阻抗公式本身的物理意义、内涵、外延以及它们对流体和岩性的区分能力、反演过程的可实现性等方面进行了讨论,得出了弹性阻抗反演是目前较好的利用叠前数据的有效方法的结论;最后就弹性阻抗反演应用的几个实例进行了比较,说明了弹性阻抗的应用范围和适用条件,要想更好地利用叠前信息必将使得声阻抗反演与弹性阻抗反演相结合、AVO分析与弹性阻抗反演相结合。In this paper, the development of elastic impedance is discussed in details, the main points of the elastic impedance are analyzed deeply, the precision of its recursive reflection coefficient, the physical meaning, connotation and extension of its formula itself, its capability of distinguishing fluid from lithology and the realization of the inversion process are ex- plored. So this paper proves that elastic impedance inversion is the preferable method of using pre-stack seismic data. Finally, several cases about the elastic impedance inversion are presented to be compared.

关 键 词：弹性阻抗 扩展的弹性阻抗 广义的弹性阻抗 弹性阻抗反演 

分 类 号：P631.4[天文地球—地质矿产勘探]