oa An Integrated Approach to Prospect Risk Reduction in Block 9, Bredasdorp Basin, South Africa

Exploration drilling is underway in the Mossgas-operated portion of Block 9 in the<br>Bredasdorp basin, South Africa. The main prospective reservoir is an Early<br>Cretaceous shallow marine sand developed at the top of a syn-rift sequence (the<br>“Upper Shallow Marine” or USM). The remaining exploration potential of the block<br>has been assessed to lie in structural (one-sea!) traps deep in the basin, where<br>reservoir quality becomes a concern, and in subtle (poly-sea!) traps closer to<br>established infrastructure. Most of the proven gas-bearing traps in this region are<br>structural, although many structural crests are bald, with reservoir developed on the<br>flanks only.