地震波阻抗反演方法研究  

Study on seismic impedance inversion

作　　者：王西文[1] 石兰亭[1] 雍学善[1] 杨午阳[1] 

机构地区：[1]中国石油勘探开发研究院西北分院,甘肃兰州730020

出　　处：《岩性油气藏》2007年第3期80-88,100,共10页Lithologic Reservoirs

摘　　要：波阻抗反演方法有多种,针对广义线性反演,重点讨论了迭代解方程的波阻抗算法、解方程的正则化方法、波阻抗反演中的分辨率、改善解的二次圆滑滤波、用于控制反演质量的统计量和均方差、波阻抗的约束反演等关键技术问题,并做了大量的模型试算;针对递推波阻抗的反演,重点讨论了递推波阻抗的反演方法、子波和反子波提取、误差对提取反子波的影响等关键技术问题,同时也做了大量的模型试算。There are many methods for seismic impedance inversion.Aiming at the methods of generalized linear inversion,the key techniques are discussed here,such as iterative impedance inversion,regularization method,resolution of impedance inversion,the statistic and mean square deviation used to control the inversion quality,secondary smooth filtering and the constrained impedance inversion.And a great of modeling computation are carried out.Referred to the methods of recurrence impedance inversion,the main techniques are analyzed in the aspects of the wavelet and reversed wavelet extraction,the effect of noise on reversed wavelet extraction and so on.

关 键 词：波阻抗反演 广义线性反演 正则化方法 分辨率 反子波 模型试算 

分 类 号：P631.4[天文地球—地质矿产勘探]