Correction for Shallow High-velocity Anomalies. 3D Seismic Survey Case Study from Poland

High-velocity anomalies in the near surface can significantly degrade the quality of the seismic data causing e.g. a discontinuity in horizons and a false pull-up. The authors are presenting the method that had proven to be very effective and efficient in terms of time and costs. In shown case the concept of a special approach to seismic static corrections brought much better final results than pre-stack depth migration or pre-stack wave equation datuming. Presented case study showed significant improvements in comparison to traditional statics corrections in terms of reliability of structural time image alike continuity of the reflection events.