摘要
测井资料约束的波阻抗反演技术，是一种建立于褶积模型基础之上的波阻抗反演技术，由于人们对这种方法的理论基础认识不清，片面地认为使用该方法可以获得高分辨率的波阻抗剖面或对地震资料进行提高分辨率处理。通过理论模型试算，证明波阻抗约束反演中存在着多解性问题，表明地震道之间的相似性，并不能代表反射系数序列或波阻抗序列的相似性。在实际资料处理中，不能采用将合成地震记录与实际地震记录剖面对比。
Log datarestricted wave impedance inversion technique is based on convolutional model.Because of misunderstanding its theory foundation,this method was misused to obtain highresolution impedance profile or to improve seismic profile resolotuion.The theoretic modeling results of log datarestricted wave impedance inversion indicate that seismic inversion result has multiple roots.The similarity between seismic tracs does not mean the similarity between impedance series or reflection coefficient series.Coherent coefficient obtained from comparing synthetic seismic profile with original seismic profile can not be used as restricted condition to invert highresolution impedance profile or to improve seismic profile resolution in practical seismic data processing.\;
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
1999年第1期7-10,共4页
Oil & Gas Geology
关键词
波阻抗反演
多解性
测井资料约束
反演
wellrestricted\ impedance\ inversion\ coherent coefficient\ highresolution
