NUMERICAL MODELING OF ELECTROACOUSTIC LOGGING INCLUDING JOULE HEATING

Boris D. Plyushchenkov (), Anatoly A. Nikitin () and Victor I. Turchaninov ()
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Boris D. Plyushchenkov: Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, Miusskaya Sq. 4, Moscow 125047, Russia
Anatoly A. Nikitin: Faculty of Geology, Lomonosov Moscow State University, Leninskie Gory, 1, Moscow 119991, Russia
Victor I. Turchaninov: Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, Miusskaya Sq. 4, Moscow 125047, Russia

International Journal of Modern Physics C (IJMPC), 2011, vol. 22, issue 08, 805-823

Abstract: It is well known that electromagnetic field excites acoustic wave in a porous elastic medium saturated with fluid electrolyte due to electrokinetic conversion effect. Pride's equations describing this process are written in isothermal approximation. Update of these equations, which allows to take influence of Joule heating on acoustic waves propagation into account, is proposed here. This update includes terms describing the initiation of additional acoustic waves excited by thermoelastic stresses and the heat conduction equation with right side defined by Joule heating. Results of numerical modeling of several problems of propagation of acoustic waves excited by an electric field source with and without consideration of Joule heating effect in their statements are presented. From these results, it follows that influence of Joule heating should be taken into account at the numerical simulation of electroacoustic logging and at the interpretation of its log data.

Keywords: Electrokinetic effect; electroacoustic logging modeling; 43.20.Jr; 43.25.Nm; 83.60.Bc; 83.60.Np (search for similar items in EconPapers)
Date: 2011
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DOI: 10.1142/S0129183111016622

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