基于Curvelet变换的多尺度分析技术  

Multi-scale analysis technique based on Curvelet transform

作　　者：郑静静[1] 印兴耀[1] 张广智[1] 

机构地区：[1]中国石油大学(华东),山东东营257061

出　　处：《石油地球物理勘探》2009年第5期543-547,共5页Oil Geophysical Prospecting

基　　金：国家重点基础研究计划(973)项目(2007CB209605)资助

摘　　要：为了更好地描述断层和断裂系统,本文将三维相干体技术与第二代Curvelet变换相结合,基于Curvelet变换良好的多尺度特性和局部滤波功能,提出了多尺度相干体分析方法,并给出了简单的计算公式。该方法在曲波域中给出不同的重构系数,得到突出不同频带的地震数据体,然后再利用相干体算法得到分频相干体。将本文提出的方法应用到实际地震数据中,突出了特定频带范围的地质异常体,提高了解释精度,有助于实现地质目标的精细解释。In order to better describe faults and fault system,by integrating 3d coherent data volume technique with 2nd generation Curvelet transform and based on excellent multi-scale characteristics and local filtering function,multi-scale coherent data volume analysis technique is developed in this paper,and the simple formula is also introduced.In Qu Bo Binding domain different reconstruction coefficients were derived,seismic data volumes in different frequency bands were calculated and by utilizing coherent volume algorithm the scaling coherent volumes were obtained.The simple method introduced in this paper was applied in real seismic data processing,the geological anomaly within certain frequency band was recognized,thus accurate interpretation can be easily conducted.

关 键 词：变换 多尺度分析 分频相干体技术 断裂 

分 类 号：P631.4[天文地球—地质矿产勘探] TN911.7[天文地球—地质学]