叠后地震剖面的线性化波阻抗反演  

Linearized wave impedance inversion of stacked seismic data

作　　者：姚振兴[1] 张霖斌[1] 纪晨[1] 张中杰[1] 

机构地区：[1]中国科学院地球物理研究所,100101

出　　处：《石油地球物理勘探》1995年第5期609-614,共6页Oil Geophysical Prospecting

基　　金：中国科学院院长专项基金

摘　　要：本文提出了由井旁道出发逐道进行的叠后地震剖面的线性化波阻抗反演方法。每一道反演采用逐次线性化对波阻抗进行修正，反演的纵向分辨率为一个采样时间间隔，并以合成记录道与实际地震道的相似系数作为迭代收敛准则，已处理的地震道波阻抗作为下一道反演初始值。实际资料处理表明，该方法具有较高的分辨率和运算速度快的优点。We put forward the linearized wave impedance inversion which,starting from borehole-side trace,is performed trace by trace in a stacked seismic section. In the wave impedance inversion of a single trace,the wave impedance is revised by itera-tive linearization ;the vertical resolution approaches to sampling interval ;the process terminates when the specified resemblance coefficient between synthetic and ob-served seismic traces is satisfied desirably ;and the resultant wave impedance serves as the initial model of the next trace. The practical processing result shows that the method brings high resolution and fast computation.

关 键 词：地震数据 地震剖面 波阻抗 反演 数据处理 

分 类 号：P631.443[天文地球—地质矿产勘探]