Numerical simulations of acoustic signals in a borehole containing a viscoelastic tool

A theoretical analysis of the effect of a logging tool on kinematic and dynamic parameters of elastic waves generated in a fluid-filled borehole by an impulse acoustic source is presented. To calculate synthetic microseismograms we use the semianalytical real axis integration method. The calculations performed have shown that the logging tool parameters have a significant influence on the amplitudes of all wave packets. The comparison of synthetic microseismograms with borehole waveforms shows good agreement