3D Preprocessing Techniques for Marine VHR Seismic Data

P127 3D PREPROCESSING TECHNIQUES FOR MARINE VHR SEISMIC DATA Summary Current construction technology and positioning capabilities of 3D marine acquisition systems do not allow small variations in their positioning to be measured with sufficient accuracy for very high resolution marine data. Pre-processing methodologies are having to be developed that are able to correct these problems using only information derived from the seismic data themselves. An automated methodology in 3D is presented which derives corrections for variations due to tides and wave motion directly from the seismic data. Application of these corrections produces improved results in the stacked seismic 3D volumes.