TGS Advances Seismic Reprocessing Campaign Offshore Liberia to Boost Exploration Readiness
Global energy data provider TGS has commenced reprocessing of the Liberia Sunfish 3D seismic survey in the Harper Basin offshore Liberia, marking a significant step toward advancing exploration readiness in this frontier region. The industry-funded project forms part of TGS’s ongoing commitment to enhancing subsurface understanding across underexplored basins.
The Sunfish 3D survey, originally acquired by TGS in 2013, covers approximately 6,100 square kilometers and will undergo a complete 3D Kirchhoff Pre-Stack Depth Migration from field tapes using modern imaging workflows. The reprocessing aims to deliver clearer imaging of Upper Cretaceous plays while preserving the fidelity of AVO response throughout the data, enabling exploration teams to apply advanced reservoir characterization workflows with greater confidence. Final products are scheduled for release in the third quarter of 2026.
David Hajovsky, Executive Vice President of Multi-Client at TGS, stated that reprocessing the Sunfish 3D survey represents an important step in maturing exploration readiness in the Harper Basin and forms part of the company’s broader, long-term commitment to rejuvenating the subsurface data foundation across Liberia.
The project is part of a comprehensive multi-year campaign by TGS in collaboration with the National Oil Company of Liberia to rejuvenate the offshore Liberia seismic data portfolio. Upon completion, TGS will have reprocessed all available 2D and 3D seismic data offshore Liberia, comprising more than 50,000 kilometers of 2D seismic and over 31,000 square kilometers of 3D seismic through advanced modern pre-stack depth migration workflows. This extensive effort underscores TGS’s long-term commitment to supporting exploration activity and data-driven decision-making in Liberia and the wider West African margin.
Source: oilreviewafrica.com, energy-pedia.com
