ANE has commissioned an analysis of aeromagnetic survey data collected by the Namibian government. This has improved our understanding of the concession’s subsurface geology by providing a 3D model of the basement rock’s formation. Basement rock is up to 30 miles thick, forms the Earth’s crust and is made up of cooled material from the core. Sedimentary rocks in which hydrocarbons accumulate, build up on top of the basement rock and their geological formation can to some extent be inferred from the basement’s configuration.
The data ANE now has on the basement has furnished us with three valuable insights. Firstly, a number of steep and well defined anticlinal structures are visible, creating the possibility that the correct geology has formed above for hydrocarbons to migrate towards the surface and become trapped. Secondly it gives indication of fault lines which could produce hydrocarbon traps. Finally, a better understanding of the subsurface geology has allowed us to anticipate potential drilling complications. For example, it has helped locate the kalkrand basaltic formation, a tough layer to drill through and indicated the depth of Kalahari sands which must be passed through first.