用户名: 密码: 验证码:
碎屑岩致密气叠前纵横波联合反演预测方法
详细信息    查看官网全文
摘要
碎屑岩薄储层砂岩含气后其纵波速度降低、与围岩泥岩地层纵波速度接近,常规纵波解释技术区别有效储层难度大。本文提出叠前纵横波地震数据反演储层预测方法是基于A V O原理、实现在PP波时间域进行PP波和PS波角道集数据的联合反演方法,其算法是内点算法,精度高、算法稳定。该方法已应用于合成和实际数据,可以准确地估计岩石物理参数,合成数据反演结果显示与模型数据稳合良好,实际数据反演结果表明与地震剖面和测井资料匹配良好。进一步提高了单独利用纵波资料进行储层预测的精度。基于联合反演结果的解释,细化了碎屑岩储层的非均质性,识别了相对含气富集区。
引文
[1]Agullo,Y,etc.,2004,Joint PP and PS stratigraphic inversion for prestack time migrated multicomponent data,74th Ann.International meeting,SEG Expanded Abstracts
    [2]Sen,M.K.,2006,Seismic Inversion,Society of Exploration Geophysicists.
    [3]Sen,M.K.and P.L.Stoffa,1996,Bayesian inference,Gibbs'sampler and uncertainty estimation in geophysical inversion:Geophysical prospecting,Vol.44,313-350
    [4]Srivastava,R.P.,and M.K.Sen,2010,Stochastic inversion of prestack seismic data using fractal-based initial models:Geophysics,Vol.75,No.3,P.R47-59
    [5]Deng,Z,M.K.Sen,U.Wang,X.Bai,and Y.Xue,2011,Prestack PP&PS wave joint stochastic inversion in the same PP time scale,SEG San Antonio 2011 Annual Meeting(P.1303-1307)
    [6]Deng,Z.,U.Wang,M.K.Sen,Y.He,K.Li,X.Bai,X.Zou and S.Cui,2010,A practical approach to mode-converted shear wave velocity analysis from 3C data,80th Ann.International meeting,SEG Expanded Abstracts
    [7]孙晨,2012,基于原始-对偶内点法寻优的波阻抗稀疏反演方法,中国科学院研究生院硕士论文
    [8]Larsen,J.A.,Gray R Margrave and Han-xing Lu,1999,AVO analysis by simultaneous P-P and P-S weighted stacking applied to 3C-3D seismic data,79th Ann.International meeting,SEG Expanded Abstracts
    [9]Jonathan E.Downton,2005,Seismic parameter estimation from AVO inversion,Dissertation for Degree of Doctor of Philosophy,Department of Geology and Geophysics,Calgary,Alberta

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700