Paper submitted to IMAGE 2026, by Milos Cvetkovic, Simon Baldock, Martin Widmaier, Marc Rocke, Greg Nash, Kyle Reuber (TGS).

Abstract

As exploration progresses into deeper water of the South Atlantic margin basins, extended-frequency marine source technology is emerging as a solution to enable efficient, environmentally friendly acquisition with no compromise on data quality. Based on streamer and OBN case studies presented here, we show that the resulting broadband dataset has better low frequencies for velocity model building and adequate higher frequencies for imaging compared to conventional source arrays. The projects demonstrate that the extended-frequency source solutions compared to other low frequency sources allow acquisition with higher shot density which extends the shelf life of the seismic data and extends its use beyond exploration purposes.

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