Ocean Bottom Seismic Processing
Maximize the value of your multicomponent data
Comprehensive array of algorithms and workflows to maximize the value of your multicomponent data.
Prediction and attenuation of complex 3D multiples independent of acquisition geometry
Wavefield extrapolation multiple modeling (WEMM) provides a complementary approach to our surface multiple prediction methods:
Convolution-based 3D surface-related multiple attenuation methods have the advantage that the multiple model is predicted from the input data with no knowledge of the subsurface. However, these methods can be challenged by complex 3D multiples, particularly for sparse seabed or towed streamer data.
WEMM uses a previously produced velocity model and migrated seismic image to compute a multiple model that can be subtracted from the input data. Thus, the process is effectively independent of acquisition geometry.