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Borehole guided waves in a non-Newtonian (Maxwell) fluid-saturated porous medium |
Cui Zhi-Wen(崔志文)a)†, Liu Jin-Xia(刘金霞)a), Yao Gui-Jin(姚桂锦)b), and Wang Ke-Xie(王克协)a) |
a Department of Acoustics and Microwave Physics, School of Physics, Jilin University, Changchun 130021, China; b The School of Communication Engineering, Jilin University, Changchun 130012, China |
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Abstract 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.
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Received: 01 January 2010
Revised: 22 January 2010
Accepted manuscript online:
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PACS:
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91.90.+p
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(Other topics in solid Earth physics)
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43.20.Ks
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(Standing waves, resonance, normal modes)
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91.60.Lj
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(Acoustic properties)
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91.60.Np
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(Permeability and porosity)
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93.85.Fg
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(Downhole methods)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 40974067, 40674059 and 10534040) and the State Key Laboratory of Acoustics, Chinese Academy of Sciences (Grant No. 200807), and Scientific Forefront and Interdisciplinary Innovation Project of Jilin University (Grant No. 200903319). |
Cite this article:
Cui Zhi-Wen(崔志文), Liu Jin-Xia(刘金霞), Yao Gui-Jin(姚桂锦), and Wang Ke-Xie(王克协) Borehole guided waves in a non-Newtonian (Maxwell) fluid-saturated porous medium 2010 Chin. Phys. B 19 084301
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