Modeling Seismic-Acoustic Fields in Axisymmetric Absorbing Media: the Finite Difference Scheme


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Abstract

The finite difference scheme for modeling seismo-acoustic field propagation in axisymmetric absorbing media excited by an emitter in the borehole fluid (a monopole, a dipole, or a quadrupole) during the acoustic logging, or by an emitter in an elastic medium (a concentrated force, a dipole, or a center of expansion) during the seismic prospecting is presented. The explicit finite difference scheme approximating the equations of the modified Biot’s model, which describes the acoustic wave propagation in an isotropic porous viscoelastic medium saturated with viscous fluid, is proposed.

About the authors

B. D. Plyushchenkov

Keldysh Institute of Applied Mathematics

Author for correspondence.
Email: plyushchenkov48@mail.ru
Russian Federation, Moscow, 125047

V. I. Turchaninov

Keldysh Institute of Applied Mathematics

Email: plyushchenkov48@mail.ru
Russian Federation, Moscow, 125047

A. A. Nikitin

Faculty of Geology

Email: plyushchenkov48@mail.ru
Russian Federation, Moscow, 119991

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