Structural style of the North Sumatra basin, offshore Aceh

Abstract

The Offshore North Sumatra Basin is an underexplored basin. Only a limited amount of exploration has occurred in the past resulting in the discovery of one economic field that is currently producing, a number of uneconomic discoveries and some unsuccessful wells. This is reflected in limited geological studies of the area. This paper demonstrates the importance of N-S trending faults associated with Basin formation in the Oligocene, continued fault activity in the late Oligocene and both compressional and extensional reactivation in the Miocene.