Multiples, Diffractions and Diffracted Multiples in the South China Sea: How Dense Does Our Acquisition Geometry Need to Be?

Multiples, diffractions and their multiples are a common feature of marine seismic data. In some areas of the South China Sea,<br>the residual multiples are a significant problem as they are coincident with the reservoir section. In such cases, we need to<br>devote additional resources to further attenuate the multiples, particularly the diffracted multiples. The challenge is to assess<br>how much effort is sufficient and whether that effort is required during data acquisition, data processing, or both?