Seychelles

Adamantine Energy has been interested in Seychelles as it is at the core of the Greater East African break up rift system and for its potency and extent of associated source rock kitchens. The petroleum geology is not readily apparent due to most of Seychelles being submerged, however there have been four well penetrations, three of which drilled back-to-back from 1980 to 1981. This is in addition to numerous tar strandings that provide the necessary detail regarding the presence of hydrocarbons, reservoir, source and seal.

 

The availability of modern 3D data allows the accurate mapping of the large Junon structure and further insight to hydrocarbon presence. ​Oil was discovered in the 3 AMOCO wells throughout the section from the Mid-Triassic to the base of the regional Palaeocene seal, an extensive marine volcanoclastic shale deposited at the time of the Deccan trap emplacement in conjugate Indian. The Junon prospect is a giant four-way closed late-Cretaceous sand feature such as those just being discovered off southern and south-western South Africa. Mid-range API oil is anticipated based on oil found to data and basin modelling. ​This massive feature was recognised by AMOCO and Texaco, but only defined by 2D seismic until Ophir acquired a 3D survey in 2014. Due to a third and most recent downturn in the petroleum industry Ophir was sold and the well never drilled.