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Session 3. Oral Presentation for: The Walyering discovery and revisiting the Jurassic hydrocarbon potential of the northern Perth Basin

Matthew Wright A *
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- Author Affiliations

A Strike Energy Limited, West Perth, WA, Australia.




Matthew Wright has over 17 years of oil and gas experience and graduated from Curtin University (Perth) with a BSc in Geology. He spent the first 12 years working with Baker Hughes, supporting Australia and Asia Pacific operations as a Log Analyst and Geosteering Supervisor while being involved in advancements in both logging while drilling and mudlogging technologies. Matthew joined Strike Energy in early 2020 as Senior Geologist just prior to the start of the West Erregulla appraisal campaign; he is responsible for operations and formation evaluation.


Australian Energy Producers Journal 65, EP24459 https://doi.org/10.1071/EP24459
Published: 19 June 2025

© 2025 The Author(s) (or their employer(s)). Published by CSIRO Publishing on behalf of Australian Energy Producers.

Abstract

Presented on 27 May 2025: Session 3

The success of the Walyering field underscores the potential for commercial discoveries within the overlooked Jurassic sequence of the northern Perth Basin. The 3000–4000 m depth interval within this sequence continues to demonstrate permeability conducive to commercial flow rates, benefiting from proximity to the major hydrocarbon source depocentre of the Dandaragan Trough. Following exploration success at Walyering-5 in 2021, there has been renewed interest in the Cattamarra Coal Measures, leading to acquisition of multiple new 3D seismic surveys and the reprocessing of existing 2D data. This paper revisits the highly prospective Jurassic fairway trend from Ocean Hill to Walyering, providing valuable insights that will guide Strike Energy’s near-term exploration program. The Jurassic wells offer significant advantages over deeper Permian wells, including shallower drilling depths (3000+ m versus 4000+ m), reduced well costs (~>AU$10,000,000), and minimal gas impurities (typically less than 1% CO2). Additionally, the presence of liquid hydrocarbon ranging >8 bbls/MMscf and the low complexity of required facilities enable a swift transition from final investment decision to first gas, potentially within 12 months. This paper highlights the strategic importance of the Jurassic sequence in the northern Perth Basin and its role in future exploration efforts, driven by the successes at Walyering and the advantages of developing these Jurassic targets.

To access the Oral Presentation click the link on the right. To read the full paper click here

Keywords: Cattamarra Coal Measures, CCM, Coomallo Trough, exploration, Jurassic, Ocean Hill, Perth Basin, Walyering.

Biographies

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Matthew Wright has over 17 years of oil and gas experience and graduated from Curtin University (Perth) with a BSc in Geology. He spent the first 12 years working with Baker Hughes, supporting Australia and Asia Pacific operations as a Log Analyst and Geosteering Supervisor while being involved in advancements in both logging while drilling and mudlogging technologies. Matthew joined Strike Energy in early 2020 as Senior Geologist just prior to the start of the West Erregulla appraisal campaign; he is responsible for operations and formation evaluation.