3D multiple attenuation compensates for irregular Black Sea bed

Complex seabed topography is common in many deepwater fields around the world and gives rise to complex multiple regimes that are poorly attenuated by 2D multiple attenuation algorithms. A new approach to 3D multiple attenuation was used to attenuate complex multiples from 3D surveys at Tuapse field in the Black Sea which has a complex water bottom geometry. The new method compensates for irregular sampling in acquisition so the input data does not have to be manipulated and preconditioned to meet the stringent requirements of ideal 3D surface related multiple elimination (SRME).