Paper submitted to EAGE Annual 2026
Summary
The last five years have been notable for the increased utilization of low frequency sources. 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 extended frequency source (Brittan et al., 2020), are designed to generate low frequencies and higher frequencies. The extended frequency source has been successfully paired with multisensor streamers in the Eastern Mediterranean (Donaldson et al., 2024). Multisensor streamers provide high S/N ratio, broadband data that complement well the enhanced low frequencies of the extended 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.