Session 22. Oral Presentation for: Reservoir prediction in wave-dominated fluvio-deltaic systems using seismic sequence stratigraphic techniques, an example from the cretaceous Golden Beach Formation, offshore Gippsland Basin
Lindsey Wilkinson A *A
Lindsey Wilkinson graduated from the University of Edinburgh in 2007 with a BSc (Hons) in Geology, and the University of Exeter with an MSc in Mining Geology in 2008. She joined BHP in 2008 as an Exploration Geologist in Minerals before transferring to the BHP Petroleum Division in 2015. Since then, she has spent time in both Houston and Perth working on a variety of Exploration, Development and Production projects. She currently works in the Australian Exploration team at Woodside Energy. |
Abstract
Presented on 28 May 2025: Session 22
Wave-dominated deltas are important hosts for global hydrocarbon reserves, containing significant volumes within good quality, laterally extensive sandstone reservoirs. These deltas often contain an ordered internal architecture with predictable facies distribution patterns identified at a detailed scale in outcrops such as the Cretaceous Blackhawk Formation of the Book Cliffs, Utah, USA. This predictability can be utilised to support reservoir characterisation and modelling in subsurface regions with limited well control and only seismic scale resolution, reducing risk and uncertainty in predicting hydrocarbon volumes. This study illustrates how detailed seismic mapping and attribute extractions were used to refine a sequence stratigraphic framework for a wave-dominated shoreline in the Gippsland Basin. The natural cyclicity of progradational, aggradational and transgressive systems was captured in this assessment, interpreted to have been driven by autocyclic switching, influenced by fluvial input and active extensional tectonism, reworked by waves. Integration of this detailed sequence stratigraphic framework with world class analogues was used to inform facies distributions, supporting predictions for reservoir distribution and quality away from well control.
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Keywords: depositional environments, exploration, reservoir characterisation, reservoir distribution, reservoir prediction, sequence stratigraphy, shoreface, wave dominated deltas.
Lindsey Wilkinson graduated from the University of Edinburgh in 2007 with a BSc (Hons) in Geology, and the University of Exeter with an MSc in Mining Geology in 2008. She joined BHP in 2008 as an Exploration Geologist in Minerals before transferring to the BHP Petroleum Division in 2015. Since then, she has spent time in both Houston and Perth working on a variety of Exploration, Development and Production projects. She currently works in the Australian Exploration team at Woodside Energy. |
