声波速度测量的频率和尺度效应分析

来源 :勘探地球物理进展 | 被引量 : 0次 | 上传用户：ljyxq13571302523

【摘要】

：

系统分析、综述了影响声波速度测量的因素及规律.简单介绍了频散度、频散公式及误差的计算方法.结合岩心砂泥岩频散特性实验结果分析了岩心在饱水及干燥状态下声频散的特点.

【出处】

：

勘探地球物理进展

【发表日期】

：

2004年期

【关键词】

：

声频散观测尺度声波速度射线理论等效介质理论

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系统分析、综述了影响声波速度测量的因素及规律.简单介绍了频散度、频散公式及误差的计算方法.结合岩心砂泥岩频散特性实验结果分析了岩心在饱水及干燥状态下声频散的特点.分析了声波频率影响传播速度的机理,给出了不同温度不同压力条件下声波速度随频率变化关系的实例.从射线理论、等效介质理论的分析入手,详细介绍了不同观测尺度对声波速度测量产生的影响,并给出了理论计算及实验观测结果.

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声波速度测量的频率和尺度效应分析

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