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Biot/Squirt Model in Viscoelastic Porous Media
引用本文:程远锋,杨顶辉,等.Biot/Squirt Model in Viscoelastic Porous Media[J].中国物理快报,2002,19(3):445-448.
作者姓名:程远锋  杨顶辉
作者单位:[1]DepartmentofEngineeringMechanics,TsinghuaUniversity,Beijing100084 [2]DepartmentofMathematicalSciences,TsinghuaUniversity,Beijing100084
摘    要:Viscoelastic wave equations are derived for both the Biot flow and squirt-flow involved.The relationship between phase velocity or attenuation of viscoelastic wave and macro parameters of the reservoir is clarified in a porous extensive dilatancy anisotropy medium.Numerical models clearly demonstrate that the viscoelastic property of rocks,not the squirt-flow,causes the dispersion and attenuation in the low-frequency range.The attenuation of the quasi SV-wave,SH-wave and the quasi P-wave depend strongly on the directions of permeabilities.Furthermore,the trends of attenuation of the quasi P-wave fast and the quasi SV-wave are inversed in both the high-frequency and low-frequency ranges.Our numerical result is in agreement with the experimental result that was carried out for the Biot/Squirt model by Jorge Geophys.65(2000)202].

关 键 词:多孔介质  粘弹性多孔介质  波传播
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