Paper submitted to IMAGE 2026, by Hao Xing, Richard Huang, Zhuoquan Yuan, Khaled Abdelaziz, Carsten Udengaard, Aurora R. Castelan, Mohammed Hegazy (TGS).
Abstract
In this study, we demonstrate how the convergence of advanced acquisition (sub-Hertz Gemini source) and robust inversion (Elastic Dynamic Matching FWI, E-DMFWI) significantly expands initial model tolerance, enables salt reconstruction directly from sediment-flood models, and stabilizes subsalt velocity updates. Field examples from multiple Amendment surveys illustrate that starting FWI at 0.6 Hz improves background velocity recovery, intra-salt resolution, and subsalt imaging coherence compared with conventional 1.6 Hz workflows. The results highlight that acquisition–imaging integration is essential for next-generation subsalt exploration.
Read the full article here.