C046 LINEARIZED INVERSION OF FRACTURE PARAMETERS FROM PURE AND CONVERTED REFLECTIONS ANDREA GRANDI 1 University of Milan Earth Sciences Department Geophysics Via Cicognara 7 20129 Milan Italy. Summary By means of the Singular Value Decomposition (SVD) I discuss what information is contained in the reflection amplitudes by the fracture parameters. I show that pure and converted waves contain different types of information: reflections perturbations from PP data are mainly related to the perturbations in the fracture density; on the contrary reflections from converted waves are related also to the fracture inclination perturbation. Moreover both for vertical fracturing and for almost-vertical


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