In addition to designing and synthesizing data over a complex salt model, the SMAART JV data sets also produce data over a model designed specifically to test surface-related multiple elimination (SRME) algorithms. The Pluto data set is somewhat unusual because it contains a full set of zero-offset traces.
The images in Figure 12 visually quantify the impact of multiple energy on the higher technology migration algorithms. Part (a) provides a glimpse of the impact of multiples on a one-way phase screen migration of the Pluto data. Part (b) shows improved results when the multiples have been suppressed by SRME, but the two-way image in (c) is a better image still, even though it was produced with only 50% of the input data.
(a) One-way migration with no SRME (b) One-way migration with SRME (c) Two-way image of 50% of the input data |