时频分析技术在层序旋回划分中的应用  

Application of time-frequency analysis to division of cyclical sequence

作　　者：李小梅[1] 俞娟丽[1] 

机构地区：[1]中国石油化工股份有限公司胜利油田有限公司地质科学研究院,山东东营257015

出　　处：《石油与天然气地质》2008年第6期793-796,共4页Oil & Gas Geology

摘　　要：首先阐述了时频旋回分析在理论上能够精细反映地质沉积粒序特征的优势,然后根据滤波器理论上的实用特性,优化设计频率递归的时频响应滤波器,再利用正演模拟方法得到理论构造地质旋回模型的地震响应,对该记录模型进行时频分析试验,最后通过解释对比其旋回特性给出实际应用效果分析。This paper expounds first on the advantages of Time-Frequency Analysis （TFA） technique in fine description of graded pattern of sedimentation. Then it specifies the optimization design of T-F filter with frequency reeursion based on the practicability of T-F filter principles and performs T-F analysis of seismic responses generated by a theoretical cycle model of tectonic geology built through forward simulation method. It finally offers an evaluation of practical application through interpretation and comparison of the simulated and the real cyclicity.

关 键 词：层序旋回 滤波器 地震解释 时频分析 

分 类 号：TE121.34[石油与天然气工程—油气勘探]