同步压缩小波变换在油气检测中的应用Application of Synchrosqueezing Wavelet Transform(SWT) in Hydrocarbon Detection
张志超,张会星
摘要(Abstract)：
地震波在穿过地下含油气区域时会表现为低频能量相对增强,高频能量相对衰减的特征,利用时频分析方法可以准确提取地震资料的低频能量和高频能量,进而据此确定油气分布范围。以东海某工区实际资料为例,进行目的层地震数据的小波变换和同步压缩小波变换,对比分析两种变换方法的频谱图。对比结果表明,同步压缩小波变换具有高时频分辨率的特征。利用同步压缩小波变换提取了该工区地震资料的低、高频能量并进行含气性检测,获得的结果与钻井数据高度吻合。
关键词(KeyWords)： 同步压缩小波变换;时频分析;油气检测
基金项目(Foundation): 国家自然科学基金“部分饱和孔隙介质中地震波的衰减和频散机理研究”(41204089)资助
作者(Author): 张志超,张会星
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