A Comparison of Splitting Techniques for 3D Complex Padé Fourier Finite Difference Migration

Figure 1

Migration impulse responses. (a)–(d): reference result by phase-shift migration using the true medium velocity. (e)–(h): FFD migration using conventional two-way splitting; 𝑝=0.75. (i)–(l): FFD migration using conventional four-way splitting; 𝑝=0.75. From left to right: central vertical cut in the 𝑥-𝑧 plane and horizontal cuts at 150 m, 750 m, and 1250 m depth.

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