Publication Name: Australasian Exploration Geoscience Conference 2018
Authors: Laurent Langhi, Julian Strand, Andrew Ross, Emanuelle Frery
Date Published: February 2018
Number of Pages: 6
Abstract:
In the Ceduna Sub-basin oil-prone source rocks, reservoirs and seals are predicted in Late Cretaceous Turonian through Santonian (Tiger) and Campanian through Maastrichtian (Hammerhead) marine and deltaic Supersequences (Totterdell et al, 2000). Despite a recent renewal in exploration the sub-basin is underexplored with only one well (Gnarlyknots-1, Figure 1) drilled in the central >10 km thick sequence. Resulting uncertainty regarding lithofacies distribution is high, leading to limited understanding of reservoir and top seal coupling, trends for fluid migration and structural trapping.Forward stratigraphic modelling output was used as an early investigation tool to predict the potential of marine and deltaic sequences for the purpose of broad based reservoir and seal prediction for an area of interest located in the central part of the sub-basin.