Predicting rugged water-bottom multiples through wavefield extrapolation with rejection and injection

Abstract:

Although convolution-based and WEM-modeling-based methods for predicting surface-related multiples are well-recognized in marine seismic data processing today, the effectiveness and efficiency of these methods are still a challenge in practice. In this paper, I present a WEM-modeling-based approach to multiple prediction. When wave-field rejection and injection are used during wave-field extrapolation, rugged water-bottom multiples can be accurately predicted when only the water-bottom elevation and water velocity are known.