Joint inversion of P-and PS-waves in orthorhombic media : Theory and a physical modeling study

  title={Joint inversion of P-and PS-waves in orthorhombic media : Theory and a physical modeling study},
  author={Vladimir Grechka and Stephen Theophanis and Ilya Tsvankin},
Reflection traveltimes recorded over azimuthally anisotropic fractured media can provide valuable information for reservoir characterization. As recently shown by Grechka and Tsvankin, normal moveout (NMO) velocity of any pure (unconverted) mode depends on only three medium parameters and usually has an elliptical shape in the horizontal plane. Because of the limited information contained in the NMO ellipse of P-waves, it is advantageous to use moveout velocities of shear or converted modes in… CONTINUE READING
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