Marchenko and interferometry based multiple attenuation of a North Sea field data set

da Costa Filho, Carlos Alberto (University of Edinburgh) | Curtis, Andrew (University of Edinburgh)


SUMMARY We apply an acoustic multiple attenuation method to a marine OBC dataset from the Volve field in the North Sea. The method consists of estimating surface-to-subsurface virtual responses using the Marchenko method, and using interferometric integrals to compute prestack multiple estimates from these virtual responses. The prestack multiples are adaptively subtracted from the original reflection data, and then images are created. We provide detailed comparisons between the image obtained from the multiples-attenuated image, the migrated original dataset, and an image obtained by migrating only the multiples. We show that several structures are attenuated in our new images, evidencing that our multiple attenuation method is effective in field data.