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DTSTART:20250101T000000
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DTSTART;TZID=Australia/Brisbane:20260625T120000
DTEND;TZID=Australia/Brisbane:20260625T143000
DTSTAMP:20260604T225523Z
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SUMMARY:PESA QLD: Structural Controls on Aquifer Connectivity in the Great Artesian Basin\, Narrabri
DESCRIPTION:PESA QLD June Luncheon\n\nGeological structures and aquifer connectivity in the Great Artesian Basin and underlying Permian-Triassic basins: insights from airborne electromagnetic surveys\, hydrochemistry and environmental tracers at Narrabri\, NSW\nPresented by: Dr Matthias Raiber\n(Principal Research Scientist at CSIRO)\n  \nAbstract: \nIn the Narrabri region\, understanding connectivity between coal seam gas (CSG) reservoirs and overlying aquifers is important for assessing potential groundwater impacts and addressing community concerns\, given that the Gunnedah Basin\, which hosts the coal seams\, underlies key Great Artesian Basin (GAB) units such as the Pilliga Sandstone. \nThis study applies an integrated workflow combining airborne electromagnetics (SkyTEM)\, seismic interpretation\, K/Ar dating of igneous intrusions\, and hydrochemical and environmental tracer datasets (including noble gases and groundwater age tracers). The SkyTEM survey (~2\,765 line km; >60 flight lines) provides high-resolution constraints on subsurface architecture\, enabling mapping of faults\, intrusions\, and key stratigraphic boundaries to ~400 m depth. \nAEM results and K/Ar ages of intrusive activity were integrated with seismic and geological data to develop conceptual hydrogeological models identifying potential connectivity pathways. Hydrochemical and tracer data were then used to test for evidence of hydraulic connection across formations and basins\, allowing structural interpretations to be evaluated against groundwater signatures. \nResults indicate that geological structures are widespread\, but their hydraulic significance and therefore their potential influence on connectivity varies across the study area. \nThe presentation focuses on the Narrabri Gas Project area while also addressing broader GAB connectivity questions. The integrated workflow provides a transferable framework for reducing uncertainty in subsurface fluid flow\, with relevance to hydrocarbon studies\, hydrogen storage\, Carbon Capture and Storage (CCS)\, and related applications. \n  \nEvent Details:\nDate: Thursday\, June 25th 2026 \nLuncheon: 12 pm for a 12:30 pm start \nPlace: Stamford Plaza Brisbane \nBookings close 5 pm Tuesday\, June 23rd 2026 unless sold out prior. \n 
URL:https://pesa.com.au/events/pesa-qld-structural-controls-on-aquifer-connectivity-in-the-great-artesian-basin-narrabri/
LOCATION:Stamford Plaza Brisbane\, 39 Edward St\, Brisbane QLD\, Brisbane\, 4000\, Australia
CATEGORIES:QLD,Technical Lunch,Technical Talk
ORGANIZER;CN="PESA QLD":MAILTO:qld-secretary@pesa.com.au
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DTSTART;TZID=Australia/Perth:20260626T123000
DTEND;TZID=Australia/Perth:20260626T160000
DTSTAMP:20260605T151144Z
CREATED:20260605T151144Z
LAST-MODIFIED:20260605T151144Z
UID:10008792-1782477000-1782489600@pesa.com.au
SUMMARY:PESA WA: Core Values Session #2
DESCRIPTION:PESA WA is excited to invite you to our second Core Values Session for 2026 on Friday 26 June at the Perth Core Library:\nHarvey Field Cores\nPresented by Cedric Griffiths (StrataMod Pty Ltd)\n\nThe 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. \nPrior 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. \nThe 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”. \nChanges 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. \n\n\nTicket Prices: \nMembers: $10.00 \nNon-Members: $20.00 \nPlease note that this event will be held on Friday 26 June 2026 at The Perth Core Library (37 Harris Street\, Carlisle). Participants are welcome to bring their own lunch. \nParticipants are invited to the Balmoral Hotel (901 Albany Highway\, Victoria Park) afterwards to continue discussions. Nibbles will be provided\, and drinks will be available at the bar at your own cost.
URL:https://pesa.com.au/events/pesa-wa-core-values-session-2/
LOCATION:DMP Core Library\, 37 Harris St Carlisle\, Perth\, WA\, Australia
CATEGORIES:Discussion Forum,Technical Talk,WA
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