三维三分量地震资料联合反演方法应用研究  

3D3C seismic joint inversion applications

作　　者：付雷[1] 王建民[1] 许红[2] 张立恩[1] 田晓冬[1] 王虹[1] 

机构地区：[1]大庆钻探工程公司地球物理勘探一公司,黑龙江大庆163357 [2]大庆油田有限责任公司采气分公司,黑龙江大庆163357

出　　处：《石油地球物理勘探》2013年第1期77-82,4,共6页Oil Geophysical Prospecting

摘　　要：文中基于三维三分量地震资料联合反演的基本原理,通过测井资料分析、交会图分析、初始模型的建立,利用纵波、转换波联合反演得到了纵波阻抗、横波阻抗、纵横波速度比、泊松比、λρ、μρ等属性体(λ、μ为拉梅系数,ρ为密度)。其中纵横波速度比属性对于反映气层分布较为准确,并显示低异常;λρ属性对反映油层分布较为准确,并表现为低λρ值。实际资料处理结果表明,利用纵波、转换波联合反演得到的储层预测结果与井资料符合率达80%,因此这些属性可作为储层分布范围划分的重要依据。In this paper,some attributes,including P-and S-wave impedances,P-and S-wave velocity ratio,Poisson's ratio,λρ and μρ,have been calculated using 3D3C seismic joint inversion with well logging data,cross-plot analysis and an initial model.The P-and S-wave velocity ratio is sensitive to gas reservoir distribution,and λρ is sensitive to oil reservoir distribution.Our application results show that reservoir prediction based on P and PS wave joint inversion has 80% coincidence with the drilled well data.So these attributes obtained by the joint inversion can be used in reservoir distribution prediction.

关 键 词：三维三分量 联合反演 地震属性 储层预测 

分 类 号：P631[天文地球—地质矿产勘探]