弹性波阻抗反演在煤层气储层预测中的应用  

The application of elastic impedance inversion in prediction of CBM reservoir

作　　者：程彦[1] 张华[1] 王敏[1] 

机构地区：[1]中国煤炭地质总局地球物理勘探研究院,河北涿州072750

出　　处：《煤田地质与勘探》2011年第2期70-73,共4页Coal Geology & Exploration

基　　金：国家重点基础研究发展计划(973计划)项目(2009CB219603);国家科技重大专项(2008ZX05035-005-003)

摘　　要：弹性波阻抗反演方法保留了地震反射振幅随偏移距或入射角变化的特征,能够获得更多、更敏感、更有效的数据,不但适合地层反演,还可进行储集层岩性反演。阐述了弹性波阻抗反演的基础理论及实现流程,通过对实际资料的反演,分析了其在煤层气储层预测中的应用特点。Elastic impedance inversion preserves the characteristics that seismic reflection amplitude changes with offset or incidence angle.It can get more and more sensitive and effective data,which is not only used for strata inversion,but also for reservoir lithology inversion.The paper states the basic theory and realization flow of elastic impedance inversion,and analyses its features of application in CBM reservoir prediction through the inversion of practical data.

关 键 词：弹性波阻抗 ZOEPPRITZ方程 煤层气储层 反演 

分 类 号：P631.4[天文地球—地质矿产勘探]