Abstract

In a marine environment, strong contamination from surface multiples is one of the major problems in imaging sub-surface structures. The surface related multiple attenuation (SRMA) technique has been effective in attenuating the multiples in complex geological areas. Surface-related multiple attenuation consists of two steps. The first step is the prediction of the multiples from the data. The second step is the adaptive subtraction of the predicted multiples from the data. This method is purely data driven and does not require any a priori knowledge of the subsurface velocity, while accounting for the full complexity of the earth. A comprehensive case study has been demonstrated using data of MBA basin unveiling effectiveness of this 3D SRMA technique for multiple attenuation.