Oslo-listed seismic specialist TGS has expanded its global multi-client reprocessing and imaging portfolio with three new projects targeting frontier basins in Norway, Canada, and Ghana. The initiatives aim to improve subsurface imaging using advanced workflows including machine learning-based denoising, full-waveform inversion, and proprietary 2D-cubed technology, according to the company.
Atlantic Margin South Reprocessing Project
In the Norwegian Sea, TGS has launched the Atlantic Margin South Reprocessing project, covering more than 23,000 sq km of 3D seismic data. This area, located in an underexplored part of the Norwegian continental shelf, presents imaging challenges due to intrusive and extrusive volcanic rocks. The data will undergo a full pre-stack depth migration workflow, supported by machine learning-based denoising, adaptive demultiple, and dynamic matching elastic full-waveform inversion, TGS reported. The project will be delivered in stages, with interim early-out products due in the third quarter of 2026 and the final full integrity volume in the second quarter of 2027.
"As the industry sharpens its exploration efforts in more frontier basins, this dataset will enable E&P companies to reveal and derisk new prospectivity in this gas-prone volcanic basin," said Kristian Johansen, chief executive of TGS.
Orphan 3D PSDM Phase 2 – Offshore Canada
TGS has also commenced the Orphan 3D PSDM phase 2 reprocessing project offshore Newfoundland and Labrador, Canada. The programme will upgrade approximately 13,300 sq km of 3D seismic data across one of the North Atlantic's most prospective exploration areas. The work targets the Cretaceous and Jurassic intervals and is designed to improve image clarity, structural definition, and reservoir characterisation. For this Canadian project, TGS will apply advanced full-waveform inversion and proprietary imaging workflows. Early products are expected during 2027, with final migrated volumes scheduled for the third quarter of 2027. Both the Norwegian and Canadian projects are supported by industry funding, TGS noted.
Ghana Keta Basin 2D-Cubed Project
The contract in Ghana was awarded by the country's Petroleum Commission to create a new offshore 2D-cubed project across the Keta Basin, providing explorers with a single, unified subsurface view of one of Africa's most promising underexplored margins. Phase 1 of the Gulf of Guinea 2D-cubed project will use 5,500 sq km of 3D data and over 14,700 km of 2D data from multiple surveys as input, generating a 25,300 sq km 2D-cubed project spanning both the shelf and deepwater areas of the Keta Basin. TGS's 2D-cubed technology creates a structurally conformable 3D seismic volume from existing multi-vintage 2D and 3D data, employing an advanced interpolation workflow to fill gaps between lines and suppress legacy migration artefacts. The result is a continuous, modern-quality 3D dataset that will support opportunity screening across the area. Final products are expected in the first quarter of 2027.
Project Summary Table
| Project | Location | Area (sq km) | Key Technology | Delivery Timeline |
|---|---|---|---|---|
| Atlantic Margin South Reprocessing | Norwegian Sea | 23,000+ 3D | Machine learning denoising, full-waveform inversion | Interim Q3 2026; Final Q2 2027 |
| Orphan 3D PSDM Phase 2 | Offshore Newfoundland and Labrador, Canada | 13,300 3D | Advanced full-waveform inversion, proprietary imaging | Early 2027; Final Q3 2027 |
| Gulf of Guinea 2D-Cubed Phase 1 | Keta Basin, offshore Ghana | 25,300 (from 5,500 3D + 14,700 km 2D) | 2D-cubed interpolation workflow | Final Q1 2027 |
These projects underscore TGS's commitment to applying cutting-edge geophysical technologies in frontier basins, providing E&P companies with improved subsurface images to reduce exploration risk. For commodity traders and energy analysts, the timing of data delivery—spanning from late 2026 through early 2027—signals a near-term increase in seismic-derived exploration insights that could influence future drilling campaigns in the Norwegian Sea, offshore Canada, and West Africa.
Sources:
