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Interpretive Model Building for TTI Anisotropic Depth Migration over the Rio Zulia Field, Colombia
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, First EAGE/ACGGP Latin American Geophysics Workshop, Mar 2012, cp-278-00021
- ISBN: 978-94-6282-049-4
Abstract
The Rio Zulia oil field in the Catatumbo Basin has a 3D seismic survey for further field development and to identify additional prospective zones. Reprocessing of this volume included additional prestack-time migration and TTI anisotropic depth migration. Low signal-to-noise on the volume over complex geologic structures led the team to employ an interpretive model-building methodology for the depth-migration velocity model. The dipping anisotropy around the edges of the anticlinal structure resulted in lateral shifts in imaging of the subthrust reflectors.