Southern Natal Valley Basin: Integrating Gravity with Seismic for Basin Location and Prediction of Petroleum Systems

One of the key attributes of gravity and magnetic data is to extend observations and interpretations from seismic profiles over a larger area. This data combination was used effectively in Getech’s study of the Southern Natal Valley Basin along the east coast of South Africa. Regional seismic data tied to on-shelf wells were integrated with Getech’s gravity and magnetic data and the resulting data set was used to unravel structures, identify sub-basins and develop a new plate model for the area. The data set provided us with the framework to predict the petroleum systems and prospectivity of the sub-basins of the Southern Natal Valley Basin.