Borehole guided waves in a non-Newtonian(Maxwell) fluid-saturated porous medium  

作　　者：崔志文 刘金霞 姚桂锦 王克协 

机构地区：[1]Department of Acoustics and Microwave Physics,School of Physics,Jilin University [2]The School of Communication Engineering,Jilin University

出　　处：《Chinese Physics B》2010年第8期442-448,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.40974067,40674059 and 10534040);the State Key Laboratory of Acoustics,Chinese Academy of Sciences(Grant No.200807);Scientific Forefront and Interdisciplinary Innovation Project of Jilin University(Grant No.200903319)

摘　　要：The property of acoustic guided waves generated in a fluid-filled borehole surrounded by a non-Newtonian （Maxwell） fluid-saturated porous formation with a permeable wall is investigated. The influence of non-Newtonian effects on acoustic guided waves such as Stoneley waves, pseudo-Rayleigh waves, flexural waves, and screw waves propagations in a fluid-filled borehole is demonstrated based on the generalized Biot-Tsiklauri model by calculating their velocity dispersion and attenuation coefficients. The corresponding acoustic waveforms illustrate their properties in time domain. The results are also compared with those based on generalized Biot＇s theory. The results show that the influence of non-Newtonian effect on acoustic guided wave, especially on the attenuation coefficient of guided wave propagation in borehole is noticeable.The property of acoustic guided waves generated in a fluid-filled borehole surrounded by a non-Newtonian （Maxwell） fluid-saturated porous formation with a permeable wall is investigated. The influence of non-Newtonian effects on acoustic guided waves such as Stoneley waves, pseudo-Rayleigh waves, flexural waves, and screw waves propagations in a fluid-filled borehole is demonstrated based on the generalized Biot-Tsiklauri model by calculating their velocity dispersion and attenuation coefficients. The corresponding acoustic waveforms illustrate their properties in time domain. The results are also compared with those based on generalized Biot＇s theory. The results show that the influence of non-Newtonian effect on acoustic guided wave, especially on the attenuation coefficient of guided wave propagation in borehole is noticeable.

关 键 词：BOREHOLE guided waves Maxwell fluid porous medium 

分 类 号：O353[理学—流体力学]