Focus: Namibia and South Africa

The extraordinary hydrocarbon potential offshore Namibia and South Africa has clearly been underestimated in the past, due to limited information previously available. However, new exploration technologies are rejuvenating this margin, with abundant oil seeps, basin modelling studies and high resolution seismic underpinning excellent prospects for exploration drilling campaigns. Recent activity, with major oil companies, such as Exxon and Total, taking up an important interest in several offshore blocks, is indicative of the huge still uncovered potential along the margin.

Following extensive long-offset acquisition and reprocessing programs between 2012 and 2019, Spectrum now offers over 69,000 km of high-quality, modern 2D Multi-Client seismic from the Orange to the Namibe Basins. All data has been processed through pre-stack time migration (PSTM) and includes angle stacks and gathers. Over 10,000 km of this seismic has also been processed through a full Kirchhoff Pre-Stack Depth (PSDM) sequence.

Acquisition of the latest addition to this library, a 2019 2D survey comprising approximately 3,900 km of the outboard Orange Basin, was completed in April with final data available before the end of 2019. This new broadband dataset will complement Spectrum’s existing seismic in the area which includes the successful SCOB12 survey, its South African counterpart, SPOB12 and a key cross-border survey linking the two. This new regional 2D also ties the location of Total’s upcoming Venus well, which has been flagged by Wood Mackenzie as having the potential to be the year’s largest discovery due to its target of 2 billion barrels of oil in a Cretaceous fan play overlying an extensive Aptian source rock modelled to be in the present day oil window and supported by a detailed seismic source rock characterization study.

Recent exploration activity is not limited to these basins. Offshore South Africa has recently been propelled back into industry focus with the announcement of the Brulpadda discoveries in the Outeniqua basin. These gas condensate discoveries in coarse clastic basin floor turbidite fans of Aptian-Albian age, prove the potential of a new play fairway along this coast.

Spectrum has reprocessed over 16,000 km of legacy 2D data over the Outeniqua Basin. Derived from more than 20 vintages the data now forms one contiguous consistent dataset.

For more information on Namibia and South Africa please see below: