在两种不同介质的半空间体的交界面上传播的波称为斯通利波,因斯通利首先发现并研究这种波而得名。它是一种波速与两个介质的性质有关的变态瑞利波。斯通利波的存在与介质的弹性拉梅常数和介质密度有关。在两个介质的拉梅常数λ1、G1和λ2、G2满足λ1/G1=λ2/G2=1的情况下,存在条件如图所示,如果两个介质的密度ρ1和ρ2之比ρ1/ρ2和G1/G2在图示坐标系中对应的点落在曲线A和曲线B之间,斯通利波就存在。Robert Stoneley 在1924年发现了它。
本文主要介绍利用斯通利波的频率偏移和时间延迟判断储层渗透性。
The paper mainly introduces the process of estimating the reservoir permeability using the frecquency offset and time lag of Stoneley wave.
运用声波全波列分析技术中斯通利波反射和差异能量分析,在辽河油田进行了裂缝识别并评价其有效性。
Sonic full waveform analysis techniques such as Stonely reflections and differential energy analysis have been used to identify fractures and evaluate their effectiveness.
结果表明,这两种声源激发的频散波具有很强的可对比性,它们的最低模式在单极声源激发时是斯通利波,在偶极声源激发时是弯曲波;
The results show that the dispersive wave excited by these two acoustic sources have strong contrast, which are Stoneley wave for monopole and flexural wave for dipole in the lowest mode.
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