Diving-Wave Tomography | Schlumberger

Diving-Wave Tomography

Robust near-surface velocity modeling

Our diving-wave tomography provides a robust, reliable near-surface velocity model for common image point (CIP) tomography iterations in a depth migration workflow or for static corrections in time processing.

Diving-wave tomography uses first arrivals picked from surface seismic data to compute a near-surface earth model by minimizing the difference between calculated and observed traveltimes. Diving waves sample the near surface with more redundancy and with a greater angular range than reflected waves, enabling you to converge on a more robust model using fewer iterations. This approach has been successfully applied in land, marine, and ocean bottom seismic (OBS) environments.

Improvement brought by diving-wave tomography and prestack depth migration to imaging below shallow anomalies.
Example of the improvement brought by diving-wave tomography (DWT) and prestack depth migration (PSDM) to imaging below shallow anomalies.

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