Comparative study of the geological characteristics of sedimentary basins in Ghana: Implications for hydrocarbon generation potential

Ghana has four sedimentary basins, but attention has mostly been concentrated on the Tano Basin. This preference among potential investors is largely due to the fact that it has been extensively studied and also its established oil and gas reserves, which have facilitated the discovery and development of major fields such as the Jubilee Field. In contrast, the Saltpond, Keta, and Voltaian basins have not undergone the same level of exploration and research, thereby making them less attractive to investors. A comparative analysis of the research conducted on the Tano Basin and the other basins is necessary to identify research opportunities that could enhance understanding of these less-explored basins and increase investor interests. The findings indicate that the Tano Basin requires minimal further exploration, while studies on the Saltpond, Keta, and Voltaian basins have primarily focused on sedimentological and geochemical analyses, offering valuable but limited insights into their petroleum systems and hydrocarbon potential. Unlocking Ghana’s hydrocarbon potential demands tailored studies for each basin. In Tano, advanced seismic, 4D monitoring, machine learning, and EOR can boost deepwater output. Saltpond requires updated petroleum system analysis and basin modelling to uncover missed prospects. Keta needs seismic imaging, stratigraphic and structural analysis, with environmental support. Voltaian calls for integrated mapping, deep seismic, and source rock evaluation. These targeted efforts are key to de-risking and advancing exploration. An integrated approach is vital for gaining a deeper understanding of the petroleum system elements in these basins. This will not only expand scientific knowledge and inform decision-making at the highest levels but also provide a strong foundation for future exploration, development, and efficient exploitation of hydrocarbon resources. • The Tano Basin of Ghana is extensively studied with key discoveries like the Jubilee Field. • The other three major basins in Ghana, namely the Saltpond, Accra-Keta, and Voltaian basins, are yet to be extensively explored. • A comprehensive exploration strategy is needed to fully assess the petroleum systems within these basins.