Land FWI for High-Resolution Velocity in Oman

This technical report discusses the challenges and advancements in applying full-waveform inversion (FWI) to land seismic data in the Sultanate of Oman. It outlines the complexities associated with near-surface effects that lead to strong ground roll and poor data quality, particularly at lower frequencies. The report details improvements in methodologies that mitigate these effects, resulting in high-resolution models that accurately capture complex velocity variations. The document also describes the technological advancements in land seismic acquisition, including wide-azimuth surveys and better low-frequency content. It highlights the differences in FWI success between northern and southern Oman, where varying geological conditions present unique challenges. The report emphasizes the importance of accurate near-surface velocity modeling and the application of multi-wave inversion techniques to enhance data quality. Additionally, it presents a comprehensive approach to addressing multiple contamination issues that hinder deeper imaging, ensuring more reliable interpretations of subsurface structures.