Elasto-Plastic Anisotropic Modeling of 3D Stress-Dependent Fracturing and Pore Pressure

P272 ELASTO-PLASTIC ANISOTROPIC MODELING OF 3D STRESS-DEPENDENT FRACTURING AND PORE PRESSURE 1 N.L. BARANSKY 1 I.A. GARAGASH 2 N.I. KIRYANOVA 3 A. LOWRIE 4 and E.A KOZLOV 1 1 Paradigm Geophysical B.V 1 st Golutvinsky per 1 119180 Moscow Russia Abstract Inversion of seismic data for elastic moduli and further – for reservoir characteristics is a well known procedure for isotropic elastic Earth model. We show how to enhance estimates of fracture orientation and intensity as well as 3D distribution of pore pressure and tri-axial lithostatic stresses by introducing rock plasticity and HTI anisotropy into the inversion technique. The technique