Côte d’Ivoire, Tano Basin

Unlock the depths of the Tano Basin with Viridien’s high-quality 3D seismic

Côte d’Ivoire is a hotspot for oil and gas exploration. The recent Calao discovery and the giant Baleine field, along with favorable geological conditions and government support, make it an attractive destination for energy companies. Ongoing exploration and production efforts indicate a promising future for hydrocarbon development in the country. Viridien's advanced 3D seismic dataset is your gateway to uncovering the area's full potential.

New and enhanced seismic data

Viridien has recently completed the PSDM reimaging projects CDI23 and CDI24, providing 10,000 km² of high‑quality seismic data from field tapes using its latest market‑leading proprietary imaging technologies. The final products offer a clear uplift over legacy datasets, generating new insights into both emerging carbonate plays and proven clastic systems on the Ivorian side of the Tano Basin, supporting more confident evaluation of remaining prospectivity.

Building on the success of CDI23 and CDI24, Viridien, in association with the Direction Générale des Hydrocarbures (DGH) and PETROCI Holding, has initiated the CDI25 reimaging program, covering an additional 6,000+ km².

Highlights

Extensive coverage: three multi-client 3D re-imaging programs merged to create a seamless and contiguous volume of over 16,000 km², enveloping the recent Calao discovery and adjacent to the renowned Baleine field:

CDI23 and CDI24 are ready for immediate viewing and dispatch
CDI25 fast-track expected Q4 2026 and final data due Q2 2027
Unrivaled detail: full-bandwidth data for high-resolution imaging targeting the Cretaceous reservoir intervals

Viridien map of the Côte d'Ivoire, Tano Basin Survey

CDI23 final data reveals spectacular imaging uplift

Exploration history and further potential

Exploration in the prolific Tano basin traditionally focused on shallower opportunities at depths of less than 500 metres, with several significant discoveries along the Ivorian margin. However, the findings in deep marine environments, such as Paon, Pelican, and, more recently, Calao, have redirected attention to the more distal areas of the basin.

The Baleine field, adjacent to Viridien’s CDI23 and CDI25 3D seismic projects, represents the largest offshore discovery in Africa for 2021 and is one of the biggest in the world for that year. Baleine came onstream in 2023, with hydrocarbons in place estimated at 2.5 billion barrels of oil and 3.3 trillion cubic feet of associated gas, further enhancing confidence in the prospects of this once-overlooked basin.

Viridien's uniquely reimaged data possesses unparalleled potential to reveal further prospectivity in this basin. The recent discoveries have paved the way for a new play concept, illuminating key questions related to reservoir and source facies.