LONDON, United Kingdom (Wednesday 14 January 2026) – TGS, a leading global provider of energy data and intelligence, announces the successful completion of the Sierra Leone Fusion 3D (Vision) multi-client reprocessing project.
The project consists of a full reprocessing from field tapes of a 7,476 sq.km area through a comprehensive Pre-Stack Depth Migration sequence, utilizing advanced ML-based denoise and deghosting, adaptive demultiple and advanced depth imaging workflows, including DM-FWI, delivering clearer imaging of Upper Cretaceous plays in Sierra Leone’s high-potential basin.
The project merges multiple surveys, acquired by TGS between 2008 and 2014, and had a high focus on preserving the fidelity of AVO throughout the data, allowing companies to perform advanced reservoir characterization workflows and assess AVO-plays with increased confidence.
“Sierra Leone sits within a proven yet underexplored segment of the West African Atlantic Margin, where access to consistent, high-quality seismic data is critical for informed exploration decisions,” said David Hajovsky, Executive Vice President, Multi-Client at TGS. “The Fusion 3D project strengthens the regional subsurface framework, enabling companies to place individual prospects into a broader geological context and evaluate opportunity with greater confidence as interest in the basin continues to build.”
TGS adds this significantly improved seismic data in Sierra Leone’s offshore basins to its portfolio of industry leading multi-client seismic data in Africa. This project furthers TGS’ commitment to advancing resource development and hydrocarbon exploration in Africa. With TGS as an exploration partner, operators can successfully evaluate opportunities in Sierra Leone and beyond.
About TGS
TGS provides advanced data and intelligence to companies active in the energy sector. With leading-edge technology and solutions spanning the entire energy value chain, TGS offers a comprehensive range of insights to help clients make better decisions. Our broad range of products and advanced data technologies, coupled with a global, extensive and diverse energy data library, make TGS a trusted partner in supporting the exploration and production of energy resources worldwide. For further information, please visit www.tgs.com (https://www.tgs.com/).
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