P09 BOREHOLE VICINITY ACOUSTIC PROPERTIES STUDY USING OFFSET VSP DATA Abstract 1 Acoustic properties of the geological section present the source of data for estimation of such important reservoir characteristics as lithologies or porosity. The advantages of borehole seismic over the surface seismic make VSP data attractive for the use in calculations of high-resolution acoustic and shear elastic impedance sections. On the other hand there are a number of factors distorting amplitude anomalies related to acoustic properties variations. This paper describes the attempt to develop a technique for offset VSP data processing preserving true amplitudes. Study Motivation Nowadays inversion of


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