A two-component rotation/cross-correlation method has been used by us to detect the shear-wave splitting and fracture orientation from PS converted waves. With this method, we identified distinct shear wave splitting and its implied fracture orientation from a set of 2D-4C ocean bottom cable (OBC) field data recorded on the Valhall field, North Sea. Tests on both synthetic and field data show that the twocomponent rotation/cross-correlation method is robust to detect shear-wave splitting and its implied fracture orientation and density from PS waves. Moreover, the temporal resolution of PS waves has been improved decoupling PS waves into fast (S1) and slow (S2) shear wave components in the presence of shear-wave splitting.

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