Geohazards are a major threat which can affect drilling, platform anchoring, and the integrity of subsurface installations. Therefore the assessment of geohazards using geophysical data require the best achievable resolution. Geohazards need to be precisely detected, delineated and understood in order to validate geohazard free areas and safe environments for drilling and production operations. Major subsurface geohazards are gas-charged sediments, gas hydrates and over pressured sands which are generally associated to amplitude anomalies. Dutta et al. (2010) illustrated that shallow hazards detection from 3D dedicated seismic volumes (SHAZ) is perfectly valid. Saint-Andre et al. (2011) highlighted the importance during conventional seismic workflow definition, of a dedicated shallow hazards 3D processing (SHAZ cube) which can systematically be performed using adapted wokflows and would enhance spatial and temporal resolution, hence detectivity in the shallow parts. The recent developpement of broadband acquisition techniques brings out new perspectives concerning shallow hazards detection. The broader frequency spectrum of the data obtained with these new acquisition techniques may become a turning point in terms of geohazards characterization. As a result, this raises the question: Do new Broadband acquisition techniques allow to improve or replace the dedicated 3D seismic volumes for geohazards detection?
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