P096 3D Synthetic Acoustic Log for Viscoelastic Media – Finite Difference Approach G.V. Reshetova* (Inst. of Comp. Math. and Math. Geoph. SB RAS) V. Tcheverda (Trofimuk Inst. of Petrol. Geol. and Geoph.) V. Kostin (ZAO Intel A/O) & D. Pissarenko (Schlumberger Moscow Research) SUMMARY Finite-difference approach to 3D simulation of acoustic/elastic waves propagation in a borehole and surrounding 3D heterogeneous elastic medium is presented. It is based on explicit second-order staggered grid FD scheme that solves the first-order system of viscoelastic wave equations in cylindrical coordinates. In order to bound area of computations original version of Perfectly Matched Layer (PML)


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