Abstract

Basalt traps mostly have complex three-dimensional top topography. This is a reason of ineffective multiple attenuation in 2D seismic with only two-stage methods consisting in multiple wavefield prediction followed by its adaptive subtraction from the input data. The combination of the prediction/subtraction approach with kinematic filtering is recommended for optimal de-multiple processing for 2D seismic lines in areas with basalt traps. We study the problem and describe the application of the approach to the real dataset from Western Offshore India.