PESA WA: Core Values Session #2

The cores will be used to re-examine the assumptions behind the CSIRO 2011/12 Sedsim forward stratigraphic model of Permian/Early Triassic sediment depositional environment which was run prior to obtaining the Harvey-1 well results.

Prior to the drilling of Harvey-1 Schlumberger had developed a depositional concept model that assumed most of the sediment being transported westwards from the Darling Scarp in the form of alluvial fans.

The Sedsim model had most of the sediment being provided by a large river system from the south, sourced from Antarctic mountain sources prior to break-up, with minor input from the eastern fault block after “Tectonic and Stratigraphic History of the Perth Basin, Norvick, M.S. GA 2004”.

Changes in palynology, sedimentation style, ichnofabric data, and trace-fossils in wells from south to north and east to west will be discussed and at the session the interactive Sedsim forward model results that exhibit the proposed deposition system will be run.