Publication Name: Eastern Australian Basins Symposium V (EABS 2015)
Authors: Armelle Kloppenburg, Kevin C. Hill
Date Published: September 2015
Number of Pages: 8
Abstract:
The Gobe oil- and gas-field is part of the 25 km long Gobe Anticline in the hangingwall of the Gobe Thrust, located at the SE end of the Papuan Fold Belt, Papua New Guinea. This area was subjected to rifting during the Jurassic with large offsets across basement faults that continue to influence the structural evolution through to current time (e.g. Hill et al. 2010). The main hydrocarbon-bearing reservoir is Upper Jurassic Iagifu sandstone (Powis, 1993) encased in an Imburu shale seal and source rock with the overlying Toro sandstone testing water. The succeeding 1 km thick Cretaceous Ieru mudstone is relatively weak, and has detached the reservoir sequence from the overlying 1 km thick Miocene Darai limestone during Pliocene thrusting.