Shearwater to Execute Ghana’s First Deepwater OBN and 4D Seismic Survey on Jubilee Field

Accra | 2 September 2025 — Shearwater GeoServices is set to deliver a landmark project in Ghana’s offshore energy sector with what it describes as the country’s first deepwater Ocean Bottom Node (OBN) seismic survey, with the two-month OBN programme scheduled to start in the fourth quarter of 2025. The project will bring advanced imaging technologies to the Tano Basin, unlocking deeper geological insights and setting a new benchmark for offshore exploration and production in the region.

Complementing this, Shearwater has also been awarded a 4D seismic survey on the Jubilee Field, Ghana’s flagship offshore development. The 4D technology will enable high-resolution monitoring of reservoir changes over time, providing critical data to optimize recovery, reduce subsurface uncertainty, and maximize the life of existing assets. Together, these projects represent a significant step in deploying cutting-edge seismic solutions to support Ghana’s long-term energy ambitions.

Tulllow Oil has said the 4D seismic data is being interpreted to identify future well locations and to optimise its 2025–26 drilling programme. By improving imaging of undeveloped reservoirs and near-field prospects, the data will help accelerate new production, extend plateau output, and enhance efficiency across the Jubilee and TEN fields. This aligns with Tullow’s focus on maximizing value from existing infrastructure while unlocking additional resources from adjacent areas.

For Ghana, the implications extend beyond technical advancement. The OBN and 4D surveys promise to boost energy security by enabling higher domestic production, reduce reliance on imports, and drive fiscal benefits through royalties and local content participation. Moreover, the projects underscore the confidence of international service providers and operators in Ghana’s offshore sector as a stable and investable destination for long-term energy development.

By integrating next-generation seismic technologies into field development, Shearwater and Tullow are charting a path that strengthens Ghana’s position as a key player in Africa’s deepwater oil and gas industry.