Paper submitted to IMAGE 2026, by Simon Baldock, Martin Widmaier, Ashish Misra, Hocine Tabti, Haitham Shabaan, Lorin Cramer, Milos Cvetkovic (TGS).
Abstract
Interest in low-frequency marine source technology is increasing rapidly. Wolfspar® (Dellinger et al., 2016) and the Tuned Pulse Source (TPS) (Ronen and Chelminski, 2017) have been designed to provide low frequency data for Full Waveform Inversion (FWI). Others, such as the Gemini enhanced frequency source (Brittan et al., 2020), are designed to generate low frequencies and higher frequencies. The enhanced frequency source has been successfully paired with multisensor streamers in the Eastern Mediterranean (Donaldson et al., 2024) and West Africa. Multisensor streamers provide broadband, high S/N ratio, data that complement well the enhanced low frequencies of the enhanced frequency source. Here we review the performance of this source on a recent one-sided wide-azimuth project acquired offshore Angola and compare the output with overlapping, recently reprocessed legacy data acquired with a conventional source.
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