Paper submitted to GESGB Conference (G-CON) 2026, by Eddie Cho, Marcus Bell, Rachel Collings, Thomas Hallett, Matt Hart, Roberto Ruiz, Graeme Stock (TGS), Justine Tinker, Rachita Sood (Panoro Energy), Stephane Perrier (Consultant)
Introduction
Utilizing modern processing and imaging technologies such as Full Waveform Inversion (FWI) on legacy data can provide new fresh insights to the subsurface in a mature basin. Here we show a case study that applies modern processing techniques such as demultiple and deghosting, together with high frequency FWI up to 40 Hz to vintage 2002 streamer data, to image shale diapirs and complex fault imaging within the distal Niger Delta Basin, offshore Equatorial Guinea.