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DTSTART;TZID=Australia/Sydney:20260811T120000
DTEND;TZID=Australia/Sydney:20260811T143000
DTSTAMP:20260723T082431Z
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UID:10008810-1786449600-1786458600@pesa.com.au
SUMMARY:PESA NSW August 2026 Technical Lunch: Gerard Ryan
DESCRIPTION:D3 Energy is a natural gas and helium developer listed on the Australian Securities Exchange on 13 May 2024. \nIts cornerstone asset is Exploration Right ER315 in South Africa’s Free State Province\, a major onshore permit covering approximately 811 km²\, and situated immediately east of Renergen Limited’s producing Virginia Gas Project. \nInitial drilling across ER315 has delivered world-class helium concentrations exceeding 5%\, confirming the Company’s geological model and establishing the region as a globally significant helium province. \nThis exploration success has since been reinforced by substantial regulatory and technical progress. The Company has completed a maiden reserve certification over part of ER315\, defining 1P reserves of 7.21 BCF and supporting its Production Right Application\, which has now been formally accepted by South Africa’s Petroleum Agency (PASA). \nIn addition to ER315\, D3 holds multiple permits in South Africa\, including ER386\, TCP 273\, ER391\, ER392 and ER393 bringing its total landholding in the region to just under 2000 km². These assets are defined by their low-cost nature and high prospectivity\, making exploration and development economically competitive. \nIn June 2025\, D3 Energy expanded into Australia\, securing PEL 121 and PEL 122 in the Arckaringa Basin\, South Australia. These permits\, covering ~5\,865 km²\, mark a strategic entry into a frontier basin with growing interest in helium and clean hydrogen exploration. Since acquisition\, the Company has also commenced farm-out discussions for the Hydrohelix prospect to support future drilling activity. \nD3 Energy now operates in two geographies\, South Africa and Australia\, with a dual-hemisphere portfolio targeting critical energy and industrial gases. \nIn South Africa\, the Company’s work is vital in a region facing severe energy shortages. Its focus on identifying and developing natural gas reserves supports the country’s transition toward a more reliable and sustainable energy future.
URL:https://pesa.com.au/events/pesa-nsw-august-2026-technical-lunch/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/07/Balloon-and-Boy-Image.avif
ORGANIZER;CN="PESA New South Wales":MAILTO:pesa.nsw@pesa.com.au
GEO:-33.872562;151.2089734
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20260730T170000
DTEND;TZID=Australia/Brisbane:20260730T193000
DTSTAMP:20260727T031459Z
CREATED:20260629T081431Z
LAST-MODIFIED:20260727T031459Z
UID:10008799-1785430800-1785439800@pesa.com.au
SUMMARY:PESA QLD: July Technical Evening - Constrained by Geology: Reducing Sub-Seismic Uncertainty with Depositional Analogues and Synthetic Data
DESCRIPTION:PESA QLD July Technical Evening\nConstrained by Geology: Reducing Sub-Seismic Uncertainty with Depositional Analogues and Synthetic Data\nPresented by: Dr. Boyan Vakarelov (Founder\, SEDBASE) \nAbstract:\nMany critical subsurface decisions depend on predicting fluid flow through stratigraphic architectures that occur below typical seismic resolution or in areas with sparse well control. This sub-seismic uncertainty can be meaningfully reduced through following a geology-first approach\, where depositional variability is constrained by process understanding and calibrated against natural analogues. Such an approach should embrace multiple geologically valid solutions and focus on the architectural scale most relevant to the decision at hand.\n\n\nThis presentation draws on insights from an extensive depositional analogue database compiled over the past two decades\, highlighting how process regime and system type control the architecture of shallow marine and fluvial successions. We will then demonstrate how forward stratigraphic and object-based modeling workflows can generate geologically realistic scenarios in data-limited settings. These models not only improve uncertainty quantification and ultimately flow prediction\, but also provide physics-informed synthetic datasets for training AI neural network models.\nEvent Details:\nDate: Thursday\, July 30th 2026 \nTime: 5 pm for a 6 pm start \nPlace: Transcontinental Hotel\, Brisbane \nStandard tickets close 5 pm Monday\, July 27th 2026. \nThose attending the July Core Workshop are welcomed to attend this technical evening with a reduced ticket price.
URL:https://pesa.com.au/events/pesa-qld-july-talk-2026/
LOCATION:Transcontinental Hotel\, Brisbane
CATEGORIES:Industry,QLD,Technical Talk
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/06/july-2026-talk.avif
ORGANIZER;CN="PESA QLD":MAILTO:qld-secretary@pesa.com.au
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Adelaide:20260727T173000
DTEND;TZID=Australia/Adelaide:20260727T193000
DTSTAMP:20260720T073515Z
CREATED:20260719T233243Z
LAST-MODIFIED:20260720T073515Z
UID:10008809-1785173400-1785180600@pesa.com.au
SUMMARY:Constrained by Geology: Reducing Sub-Seismic Uncertainty with Depositional Analogues and Synthetic Data
DESCRIPTION:Presented by: Boyan Vakarelov (Founder SEDBASE) \nAbstract: Many critical subsurface decisions depend on predicting fluid flow through stratigraphic architectures that occur below typical seismic resolution\, or in areas with sparse well control. This sub-seismic uncertainty can be meaningfully reduced through following a geology-first approach\, where depositional variability is constrained by process understanding and calibrated against natural analogues. Such an approach should embrace multiple geologically valid solutions and focus on the architectural scale most relevant to the decision at hand. \nThis presentation draws on insights from an extensive depositional analogue database compiled over the past two decades\, highlighting how process regime and system type control the architecture of shallow marine and fluvial successions. We will then demonstrate how forward stratigraphic and object-based modelling workflows can generate geologically realistic scenarios in data-limited settings. These models not only improve uncertainty quantification and ultimately flow prediction but also provide physics-informed synthetic datasets for training AI neural network models. \n  \nDetails for the event: \n5:30 to 6:00pm – pre-talk drinks and canapes \n6:00 to 7:00pm – evening talk and Q&A \n7:00 to 7:30pm – post-talk drinks in the bar \nPESA SA/NT will provide a selection of canapes. Beer\, wine\, and soft drinks are available and can be purchased from the bar. \nTicket prices: Students Free\, Members $30\, Non-Members $40\, Fluvial Stratigraphy Workshop attendees free \nPlease note that ticket sales will close on Wednesday 22 July 2026 5:00pm \n 
URL:https://pesa.com.au/events/constrained-by-geology-reducing-sub-seismic-uncertainty-with-depositional-analogues-and-synthetic-data/
LOCATION:Ayers House – Henry’s Bar\, 288 North Terrace\, Adelaide\, SA\, 5000\, Australia
CATEGORIES:SA / NT,Technical Talk
ORGANIZER;CN="Sharon Tiainen":MAILTO:sharon.tiainen@sa.gov.au
GEO:-34.921667;138.609444
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Adelaide:20260719T090000
DTEND;TZID=Australia/Adelaide:20260719T150000
DTSTAMP:20260630T081450Z
CREATED:20260410T024239Z
LAST-MODIFIED:20260630T081450Z
UID:10008773-1784451600-1784473200@pesa.com.au
SUMMARY:GEOLOGY OF THE ADELAIDE HILLS
DESCRIPTION:PESA SA Field Trip\nGEOLOGY OF THE ADELAIDE HILLS. IT’S BEEN THERE\nFOR HALF A BILLION YEARS! WHY DIDN’T ANYONE\nTELL ME!?\nled by David Grybowski\n  \nSunday 19th July 2026\n9am to ~3pm\n(Rescheduled from May 24th)\n\nFrustrated driving through the Adelaide Hills and still not understanding the Geology?\nThis excursion will familiarize participants with the geological formations\, folds and faults of the Adelaide Hills by orientating the outcrop and faults with the road network and geomorphology. We will go up gullies and gorges from Montecute Road to Morialta to Chambers Gully via Mt Lofty\, where we’ll have a BYO lunch.\n  \nLogistics: \nThis is a self-drive field-trip.  There are 6 stops and 8 drive-by points of interest where we cannot stop due to lack of parking. \nA short walk of less than 1 kilometre on steepish track is required at Morialta and another of about 2 kilometres in Chambers Gully. \nBring your own lunch. \nWe’ll start 9 am at the Tower Hotel carpark on Magill Rd and return there at approximately 3 pm. \nOptional post field trip (self-funded) drinks at the Tower Hotel. \nCar-pooling required as parking in some locations is restricted. \nOn board geological commentary will be provided. \nDetailed instructions and excursion notes will be sent to those who sign up. \nRegistrations close no later than 15th July. \n  \nPESA Members: $20 Non-Members: $30\nBook and pay online at www.pesa.com.au\nContact Alex Ross 0434 569 936 alexross@fastmail.fm forenquiries.\nBookings close 5pm on Thursday 21st May. Places are strictly limited based on carpool capacity
URL:https://pesa.com.au/events/geology-of-the-adelaide-hills/
LOCATION:NSW
CATEGORIES:SA / NT,Technical Talk
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/04/Screenshot-2026-04-10-120738.avif
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Perth:20260716T180000
DTEND;TZID=Australia/Perth:20260716T200000
DTSTAMP:20260716T002027Z
CREATED:20260709T163059Z
LAST-MODIFIED:20260716T002027Z
UID:10008801-1784224800-1784232000@pesa.com.au
SUMMARY:PESA WA: July Technical Evening Presentation: Boyan Vakarelov
DESCRIPTION:PESA WA invites you to our July Technical Evening Presentation on Thursday 16 July at Faraday’s:\n“Constrained by Geology: Reducing Sub-Seismic Uncertainty with Depositional Analogues and Synthetic Data”\nPresented by Boyan Vakarelov (Founder SEDBASE)\n\nMany critical subsurface decisions depend on predicting fluid flow through stratigraphic architectures that occur below typical seismic resolution\, or in areas with sparse well control. This sub-seismic uncertainty can be meaningfully reduced through following a geology-first approach\, where depositional variability is constrained by process understanding and calibrated against natural analogues. Such an approach should embrace multiple geologically valid solutions and focus on the architectural scale most relevant to the decision at hand. \nThis presentation draws on insights from an extensive depositional analogue database compiled over the past two decades\, highlighting how process regime and system type control the architecture of shallow marine and fluvial successions. We will then demonstrate how forward stratigraphic and object-based modeling workflows can generate geologically realistic scenarios in data-limited settings. These models not only improve uncertainty quantification and ultimately flow prediction but also provide physics-informed synthetic datasets for training AI neural network models. \n\nTicket Prices: \nMember: $30.00 \nStudent Member: $10.00 \nConcession Member [Retired or Hardship]: $20.00 \nNon-Member: $40.00 \nWorkshop Attendee: Complimentary \nAll ticket sales close at 5pm Tuesday 14 July.  No further tickets will be allocated after this time. \nPlease note that this event will be held on Thursday 16 July at Faraday’s (216 St Georges Terrace\, Perth). \nHosted with thanks to our Platinum Sponsor: \n \nand Gold Sponsor: \n \nand Silver Sponsors: \n \n \n \nand Bronze Sponsor:
URL:https://pesa.com.au/events/pesa-wa-july-technical-evening-presentation-boyan-vakarelov/
LOCATION:Faraday’s\, 216 St Georges Terrace\, Perth\, WA\, 6000\, Australia
CATEGORIES:Evening Event,Industry,Technical Talk,WA
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/02/pesa-energy-geoscience.avif
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260716
DTEND;VALUE=DATE:20260718
DTSTAMP:20260714T061137Z
CREATED:20260605T165542Z
LAST-MODIFIED:20260714T061137Z
UID:10008793-1784160000-1784332799@pesa.com.au
SUMMARY:PESA WA: Interpreting Three-Dimensional Fluvial and Shoreline Architecture from Core\, Depositional Analogues\, and Forward Stratigraphic Models
DESCRIPTION:PESA WA invites you to a two-day practical workshop focused on interpreting depositional environments and predicting 3D architectures in shallow marine and fluvial intervals on Thursday 16 and Friday 17 July at the Perth Core Library\, Carlisle.\n“Interpreting Three-Dimensional Fluvial and Shoreline Architecture from Core\, Depositional Analogues\, and Forward Stratigraphic Models”\nPresented by: Dr Boyan Vakarelov (Sedbase) & Simon Lang\n\nThrough a combination of lectures and hands-on examination of selected Permian and Mesozoic cores\, this workshop will cover: \n\nUsing hierarchical frameworks to address geological questions at the appropriate architectural scale.\nIdentifying depositional environments in core\, with a primary focus on active depositional processes.\nExamining typical 3D architectures in shallow marine and fluvial environments under different process regimes and their impact on subsurface fluid flow.\nLeveraging depositional analogues\, 3D conceptual models\, and realistic forward stratigraphic models to improve subsurface architectural predictions.\n\nLearning Outcomes: \n\nGain practical experience using physical structures and ichnology to interpret local depositional environments within cores.\nImprove your understanding of the three-dimensional aspects of depositional systems through extensive analogue databases\, 3D conceptual models\, and forward stratigraphic models.\nGain insight into how these tools can improve inter-well predictions while accounting for appropriate levels of depositional uncertainty.\n\nWho Should Attend: \n\nExploration and development geologists\, petrophysicists\, reservoir engineers\, academics\, and geoscience students.\n\nAnalogue Database Access: \n\nAll participants will be granted complimentary access to the Sedbase web-based platform for the duration of the workshop.\n\n  \n\nTicket Prices: \nMembers: $800.00 \nNon-Members: $1000 \nStudents: $100.00 \nPlease note that this event will be held on Thursday and Friday 16 & 17 July 2026 at the Perth Core Library (37 Harris Street\, Carlisle). Arrive at 8.30am for a 9.00am start and finishing at 4pm each day. \n 
URL:https://pesa.com.au/events/pesa-wa-interpreting-three-dimensional-fluvial-and-shoreline-architecture-from-core-depositional-analogues-and-forward-stratigraphic-models/
LOCATION:Carlisle core library\, 37 Harris Street\, Carlisle\, WA\, 6101\, Australia
CATEGORIES:Discussion Forum,Short Course,Technical Talk,WA
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/06/Core_Workshop_July2026.avif
GEO:-31.982809068701;115.92710460307
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260714T120000
DTEND;TZID=Australia/Sydney:20260714T143000
DTSTAMP:20260713T020224Z
CREATED:20260621T110413Z
LAST-MODIFIED:20260713T020224Z
UID:10008798-1784030400-1784039400@pesa.com.au
SUMMARY:PESA NSW July 2026 Technical Lunch: Dr Peter Moore
DESCRIPTION:Petroleum Geoscience and the Energy Transition: A Personal Historical Perspective and Predictions for the Future \nAn historical perspective on important advances that Dr Peter Moore has been witness to\, and continuation of the story into the future around the emergence of non-fossil-fuel energy sources and the likely ongoing roles of geoscientists. \nThe petroleum industry was technologically advanced by the mid 1900s\, but a number of developments over the last half century stand out in the areas of seismic\, sequence stratigraphy\, assessment technologies\, deepwater plays\, drilling\, offshore developments\, CSG and shale\, which will be discussed\, including from a personal perspective. These developments have served to maintain the competitiveness of the petroleum industry and have satisfied an increasing demand over time. \nHowever\, a key question for the industry is its future role in the evolving energy transition. Analysis is difficult because there are multiple competing narratives and strong vested interests. \nToday we sit at a pivot point\, with a growing divergence of possible energy futures\, depending on how the world balances economic growth\, energy poverty\, geopolitics\, and great power competition against emissions reduction\, fossil fuel elimination and climate change concerns. \nIn the decade since the Paris agreement and despite significant progress\, the 1.5oC goal is lost and fossil fuel’s contribution to energy consumption remains at 80%. \nWhile both sides (fossil fuel supporters and renewable proponents) argue their case\, the next 15 years at least is becoming clearer – a US/China energy and manufacturing divide\, huge growth of renewables but matched by overall energy growth\, the emergence of nuclear\, and the persistence of petroleum\, especially gas. \nDespite trillions of dollars spent on the energy transition\, we have underestimated the difficulty in speedily transitioning the world’s energy and industrial infrastructure\, and have underestimated global growth\, including overall energy consumption. This can be seen by comparing predictions and model outcomes published over the last decade. \nFor today’s petroleum geoscientists\, technology and jobs will continue to evolve while new areas are likely to include advanced geothermal\, CCS\, and potentially natural hydrogen. As fields decline and new developments and discoveries become smaller\, more effort and technology is required from petroleum companies and individuals to deliver the energy the world still demands.
URL:https://pesa.com.au/events/pesa-nsw-july-2026-technical-lunch/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
ORGANIZER;CN="PESA New South Wales":MAILTO:pesa.nsw@pesa.com.au
GEO:-33.872562;151.2089734
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Castlereagh Boutique Hotel 169 Castlereagh St Sydney NSW 2000 Australia;X-APPLE-RADIUS=500;X-TITLE=169 Castlereagh St:geo:151.2089734,-33.872562
END:VEVENT
BEGIN:VEVENT
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
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/06/Core_Values_2.avif
GEO:-31.9830331;115.9269196
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20260625T120000
DTEND;TZID=Australia/Brisbane:20260625T143000
DTSTAMP:20260604T225523Z
CREATED:20260604T225523Z
LAST-MODIFIED:20260604T225523Z
UID:10008789-1782388800-1782397800@pesa.com.au
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
GEO:-27.4714163;153.0303949
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Perth:20260625T120000
DTEND;TZID=Australia/Perth:20260625T140000
DTSTAMP:20260622T150129Z
CREATED:20260519T085512Z
LAST-MODIFIED:20260622T150129Z
UID:10008775-1782388800-1782396000@pesa.com.au
SUMMARY:PESA WA: June Technical Luncheon: Dr Peter Moore - Australian Geoscience Council (AGC) National Geoscience Champion
DESCRIPTION:PESA WA invites you to our June Technical Luncheon on Thursday 25 June at The Melbourne Hotel:\n“Petroleum Geoscience and the Energy Transition: A Personal Historical Perspective and Predictions for the Future”\nPresented by Dr Peter Moore (Adjunct Professor at Curtin University)\n\nAn historical perspective on important advances that Dr Peter Moore has been witness to\, and continuation of the story into the future around the emergence of non-fossil-fuel energy sources and the likely ongoing roles of geoscientists. \nThe petroleum industry was technologically advanced by the mid 1900s\, but a number of developments over the last half century stand out in the areas of seismic\, sequence stratigraphy\, assessment technologies\, deepwater plays\, drilling\, offshore developments\, CSG and shale\, which will be discussed\, including from a personal perspective. These developments have served to maintain the competitiveness of the petroleum industry and have satisfied an increasing demand over time. \nHowever\, a key question for the industry is its future role in the evolving energy transition. Analysis is difficult because there are multiple competing narratives and strong vested interests. \nToday we sit at a pivot point\, with a growing divergence of possible energy futures\, depending on how the world balances economic growth\, energy poverty\, geopolitics\, and great power competition against emissions reduction\, fossil fuel elimination and climate change concerns. \nIn the decade since the Paris agreement and despite significant progress\, the 1.5oC goal is lost and fossil fuel’s contribution to energy consumption remains at 80%. \nWhile both sides (fossil fuel supporters and renewable proponents) argue their case\, the next 15 years at least is becoming clearer – a US/China energy and manufacturing divide\, huge growth of renewables but matched by overall energy growth\, the emergence of nuclear\, and the persistence of petroleum\, especially gas. \nDespite trillions of dollars spent on the energy transition\, we have underestimated the difficulty in speedily transitioning the world’s energy and industrial infrastructure\, and have underestimated global growth\, including overall energy consumption. This can be seen by comparing predictions and model outcomes published over the last decade. \nFor today’s petroleum geoscientists\, technology and jobs will continue to evolve while new areas are likely to include advanced geothermal\, CCS\, and potentially natural hydrogen. As fields decline and new developments and discoveries become smaller\, more effort and technology is required from petroleum companies and individuals to deliver the energy the world still demands. \n\nTicket Prices: \nEarly Bird Member (Until 5pm Thursday 18 June): $69.00 \nMember (Friday 19 June – Monday 22 June): $79.00 \nStudent Member (Until Monday 22 June): $20.00 \nConcession Member [Retired or Hardship] (Until Monday 22 June): $59.00 \nNon-Member (Until Monday 22 June): $89.00 \nEarly bird pricing ends Thursday 18 June at 5pm (AWST). All ticket sales close at 5pm Monday 22 June.  No further tickets will be allocated after this time. \nPlease note that this event will be held on Thursday 25 June at The Melbourne Hotel (33 Milligan Street\, Perth). \nPlease note that this event includes lunch (main meal and dessert)\, soft drinks and juice\, tea and coffee.  There will be a cash bar available. \nHosted with thanks to our Platinum Sponsor: \n \nand Gold Sponsor: \n \nand Silver Sponsors: \n \n \n \nand Bronze Sponsor:
URL:https://pesa.com.au/events/pesa-wa-june-lunch-talk/
LOCATION:The Melbourne Hotel\, 33 Milligan Street\, Perth\, Western Australia\, 6000\, Australia
CATEGORIES:Industry,Technical Lunch,Technical Talk,WA
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/02/pesa-energy-geoscience.avif
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260610
DTEND;VALUE=DATE:20260612
DTSTAMP:20260609T061041Z
CREATED:20260506T064141Z
LAST-MODIFIED:20260609T061041Z
UID:10008783-1781049600-1781222399@pesa.com.au
SUMMARY:PESA WA: Introduction to Play Mapping - CANCELLED
DESCRIPTION:PESA WA regrets to inform you that the two-day course on Wednesday 10 June and Thursday 11 June at the Shoe Bar\, Yagan Square\, Perth\, has had to be cancelled due to unforeseen circumstances. It is anticipated that this course will be rescheduled for later in the year.\nIntroduction to Play Mapping\nPresented by: Dr Darren Ferdinando (Basin Science)\n\nObjectives\nThis course is designed to introduce geological play mapping for oil and gas exploration. It is aimed at geoscientists who are interested in applying the concepts of hydrocarbon play mapping to identify areas of high and low prospectivity in terms of the key play elements –\nreservoir\, seal\, trap and charge and using these to identify hydrocarbon potential across scales from permit to basin-wide assessments for quick-screening of new ventures opportunities through to detailed play assessments of core areas. Over two days participants will be shown: \n\nMethodologies for breaking a stratigraphic succession into a series of meaningful and manageable plays with emphasis on using sequence stratigraphic concepts\nWhat comprises the key play elements in a play and how to characterise them\nPost-Drill Assessment of petroleum wells for play mapping\nMapping out Gross Depositional Environments across a play\nVarious styles of play mapping from simple ‘Traffic Light’ mapping through to detailed split risk maps and the scenarios in which they are used\nIntegration of play maps with Prospects and Leads and how to apply various risking schemes (e.g. 4-factor risking\, 5-factor risking etc) to the play mapping\nBasin-wide assessment of multiple plays\nDiscussion of examples of play mapping across several onshore and offshore Australian Basins and the benefits and pitfalls of a variety of play mapping methodologies\n\nContent\nThe process of play mapping incorporates assimilating data from petroleum wells\, seismic data\, sequence stratigraphy\, remoting sensing (magnetic and gravity) data and other sources and combining this data into a spatially meaningful and consistent set of maps that highlight areas of high\, medium and low prospectivity as an aid for exploration. Play mapping can be used in a range of ways from screening large areas for new ventures or gazettal assessments\, determination of areas with lower potential to relinquish in a permit renewal\, or even to identify frontier areas with the high potential to acquire new data across. Participants will work through the core concepts in play mapping through presentations and a series of interactive activities and hands-on exercises in play mapping using data from Australian basins to create play and gross depositional environment maps. \n\nTicket Prices: \nMembers: $750.00 \nNon-Members: $1000 \nStudents: $200.00 (NB – one place only available) \nPlease note that this event will be held on Wednesday and Thursday 10 & 11 June 2026 at The Shoe Bar (Yagan Square\, Perth). \n 
URL:https://pesa.com.au/events/pesa-wa-introduction-to-play-mapping/
LOCATION:Shoe Bar\, Shop GSO7 Yagan Square\, 376 - 420 Wellington St\, Perth WA 6050\, Perth\, Western Australia\, 6050\, Australia
CATEGORIES:Discussion Forum,Short Course,Technical Talk,WA
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/05/Play-Workshop-Flyer.avif
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260609T120000
DTEND;TZID=Australia/Sydney:20260609T143000
DTSTAMP:20260609T225232Z
CREATED:20260601T233155Z
LAST-MODIFIED:20260609T225232Z
UID:10008790-1781006400-1781015400@pesa.com.au
SUMMARY:PESA NSW: June 2026 Technical Lunch
DESCRIPTION:New opportunities for gas exploration in NSW – acreage available first time in a decade \nOn 29 April 2026 the NSW Minister for Natural Resources announced the release of new areas for exploration in the North West of NSW near the South Australian and Queensland borders. They are inviting companies to apply for the grant of exploration tenements over two specific areas (the Bancannia and Pondie Range Troughs) that have previously been identified as prospective for oil and gas. \nFull details of the contents of the Minister’s Press Release are available on the NSW Ministerial media releases website and published on 29 April 2026. One of the key conditions for applicants will be the areas involved will be subject to requirements any gas produced from the areas covered by these newly released EL’s will be reserved for domestic consumption. \nThis is an exciting development and shows the NSW Government are aware of and are taking positive steps to relieve the coming gas shortage in NSW. Recent television interviews have also shown the Minister willingly talking over the Santos Narrabri Project and its progress through the Regulatory Regime\, so discussions at our June 9 meeting are likely to expand beyond the newly released areas for exploration.
URL:https://pesa.com.au/events/pesa-nsw-june-2026-technical-lunch/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/06/map-release-areas-ver2.avif
ORGANIZER;CN="PESA New South Wales":MAILTO:pesa.nsw@pesa.com.au
GEO:-33.872562;151.2089734
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Castlereagh Boutique Hotel 169 Castlereagh St Sydney NSW 2000 Australia;X-APPLE-RADIUS=500;X-TITLE=169 Castlereagh St:geo:151.2089734,-33.872562
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20260528T120000
DTEND;TZID=Australia/Brisbane:20260528T143000
DTSTAMP:20260604T044005Z
CREATED:20260430T223139Z
LAST-MODIFIED:20260604T044005Z
UID:10008780-1779969600-1779978600@pesa.com.au
SUMMARY:PESA QLD: Comet Ridge's Mahalo Gas Hub – The next cab off the rank
DESCRIPTION:Comet Ridge’s Mahalo Gas Hub – The next cab off the rank\nPresented by Tor McCaul (Managing Director)\, Melanie Fitzell (Lead Geologist & Tenures) \nComet Ridge has secured a significant acreage position at the Mahalo Gas Hub in the southern Bowen Basin. This region is shaping up to be a major gas production hub for the east coast\, with proven commercial production rates\, development-ready 2P gas reserves\, and excellent access to key infrastructure to domestic and LNG export markets. The Mahalo Gas Hub assets are the Company’s primary focus for short-term development and appraisal expansion activities with the aim of supplying gas into Australia’s east coast gas market. \nJoin Tor and Melanie who will provide an engaging overview of the Mahalo Gas Hub area\, including details on its exploration and appraisal history\, geological setting\, and the exciting future opportunities ahead for the project. \n  \nTickets on sale now.\nStandard ticket pricing will go into affect on Thursday\, 21st May 5:00 PM. \nPlease note\, this event will commence at 12:30pm (arrival from 12:00pm).
URL:https://pesa.com.au/events/pesa-qld-may-2026-technical-lunch/
LOCATION:Stamford Plaza Brisbane\, 39 Edward St\, Brisbane QLD\, Brisbane\, 4000\, Australia
CATEGORIES:QLD,Technical Lunch,Technical Talk
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/05/may-2026-talk.avif
ORGANIZER;CN="PESA QLD":MAILTO:qld-secretary@pesa.com.au
GEO:-27.4714163;153.0303949
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Stamford Plaza Brisbane 39 Edward St Brisbane QLD Brisbane 4000 Australia;X-APPLE-RADIUS=500;X-TITLE=39 Edward St:geo:153.0303949,-27.4714163
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260512T120000
DTEND;TZID=Australia/Sydney:20260512T143000
DTSTAMP:20260518T045334Z
CREATED:20260424T122226Z
LAST-MODIFIED:20260518T045334Z
UID:10008779-1778587200-1778596200@pesa.com.au
SUMMARY:PESA NSW: May 2026 Technical Lunch
DESCRIPTION:The Taroom Trough – The next big thing?  \nActivity in the Taroom Trough of the Bowen Basin Queensland is ramping up considerably in 2026. The unconventional play\, considered by many to be Australia’s first proven Basin Centred Gas (BCG) accumulation\, will see significant seismic and well activity in 2026. Large and small companies alike are staking their positions\, with activity at an all time high. Over the coming years\, we will see a raft of companies including majors\, such as Shell and Santos\, new players Omega and Elixir and the newest entrant into the Trough\, Xstate Resources\, working towards commercial breakthroughs. Greg will give a brief history of the Taroom Trough from an unconventional perspective\, describe the play in detail and provide insight to some of the more important drilling results and preview the upcoming activity in the region.
URL:https://pesa.com.au/events/pesa-nsw-may-2026-technical-lunch/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
ORGANIZER;CN="PESA New South Wales":MAILTO:pesa.nsw@pesa.com.au
GEO:-33.872562;151.2089734
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Castlereagh Boutique Hotel 169 Castlereagh St Sydney NSW 2000 Australia;X-APPLE-RADIUS=500;X-TITLE=169 Castlereagh St:geo:151.2089734,-33.872562
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260501
DTEND;VALUE=DATE:20260502
DTSTAMP:20260430T071611Z
CREATED:20260421T135124Z
LAST-MODIFIED:20260430T071611Z
UID:10008778-1777593600-1777679999@pesa.com.au
SUMMARY:PESA WA: Core Values Session #1
DESCRIPTION:PESA WA invites you to our first Core Values Session for 2026 on Friday 1 May at the Perth Core Library:\nBarossa Field Cores\nPresented by Fiona Burns (Task Fronterra)\nDr Fiona Burns will walk through the Barossa Field cores and lead an informal discussion with participants.\n\n\nTicket Prices: \nMembers: $10.00 \nNon-Members: $20.00 \nPlease note that this event will be held on Friday 1 May 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-1/
LOCATION:The Melbourne Hotel\, 33 Milligan Street\, Perth\, Western Australia\, 6000\, Australia
CATEGORIES:Discussion Forum,Technical Talk,WA
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/04/PESA-SPE-Joint-Event-Flyer-2026v2.avif
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Perth:20260416T120000
DTEND;TZID=Australia/Perth:20260416T140000
DTSTAMP:20260409T020133Z
CREATED:20260328T121449Z
LAST-MODIFIED:20260409T020133Z
UID:10008767-1776340800-1776348000@pesa.com.au
SUMMARY:PESA WA: April Lunch Talk: Simon Lang
DESCRIPTION:PESA WA invites you to our April Technical Lunch event on Thursday 16 April at The Melbourne Hotel:\nFluvial-Deltaic Depositional Systems – Lessons from the Freezer to the Oven\nPresented by Simon Lang (UWA)\nIn this talk\, Professor Simon Lang will review some of the lessons learned regarding geometry/architecture of reservoirs and seals from many modern and ancient “partial analogues” that Simon has worked on from the Ob River of Siberia and the Permian Bowen-Sydney-Cooper basins; through the Triassic to Jurassic of the Carnarvon-Browse Basin ls and useful partial analogues from South America and Central & Western Australia.\nTicket Prices: \nEarly Bird Member (Until 5pm Monday 6 April): $69.00 \nMember (Tuesday 7 April – Thursday 9 April): $79.00 \nStudent Member (Until Thursday 9 April): $20.00 \nConcession Member [Retired or Hardship] (Until Thursday 9 April): $59.00 \nNon-Member (Until Thursday 9 April): $89.00 \nEarly bird pricing ends Monday 6 April at 5pm (AWST). All ticket sales close at 5pm Thursday 9 April.  No further tickets will be allocated after this time. \nPlease note that this event will be held on Tuesday 16 April at The Melbourne Hotel (33 Milligan Street\, Perth). \nPlease note that this event includes lunch (main meal and dessert)\, soft drinks and juice\, tea and coffee.  There will be a cash bar available. \nHosted with thanks to our Platinum Sponsor: \n \nand Gold Sponsor: \n \nand Silver Sponsors: \n \n \n \nand Bronze Sponsor:
URL:https://pesa.com.au/events/pesa-wa-2026-april-lunch-talk-simon-lang/
LOCATION:The Melbourne Hotel\, 33 Milligan Street\, Perth\, Western Australia\, 6000\, Australia
CATEGORIES:Industry,Technical Lunch,Technical Talk,WA
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/02/pesa-energy-geoscience.avif
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260414T120000
DTEND;TZID=Australia/Sydney:20260414T143000
DTSTAMP:20260407T003429Z
CREATED:20260322T113337Z
LAST-MODIFIED:20260407T003429Z
UID:10008766-1776168000-1776177000@pesa.com.au
SUMMARY:PESA NSW: April 2026 Technical Lunch
DESCRIPTION:Net Zero\nPESA NSW invite you to our technical luncheon. Presented by Max Williamson. The Branch AGM will also be held before the lunch. \nIntroduction\nNet Zero (aka Net Zero Emissions) is a widely used and abused term in today’s environment conscious world. The term has been grabbed by many professions in our developed society to mean many things\, but all about justifying their actions\, pronouncements and member requirements. Industries have been created based on the simple two words. \nQuoting from Wikipedia:\n“The idea of NET ZERO came out f research in the late 2000s into how the atmosphere\, oceans and carbon cycle were reacting to CO2 emissions. This research found that global warming will significantly slow down only if CO2 emissions are reduced to net zero\, although existing greenhouse gasses in the atmosphere will still contribute to continued warming. Net zero was basic to the goals of the Paris Agreement. This stated that the world must “achieve a balance between anthropogenic emissions by sources and removals by sinks of greenhouse gasses in the second half of this century”. The term “net zero” gained popularity after the Intergovernmental Panel on Climate Change published its Special Report on Global Warming of 1.5 degrees Celsius (SR15). This report stated that “Reaching and sustaining net zero global anthropogenic (human caused) CO2 emissions and declining net non-CO2 radiative forcing would halt anthropogenic global warming on multi-decadal time scales (high confidence).”\nTodays realities \nIn Australia alone\, there are copious seminar papers\, technical journals\, comprehensive books etc written by members of various technical\, legal\, accounting\, engineering and environmental bodies including scientists\, professors\, barristers\, lawyers\, chartered accountants and of course journalists. So much is self-promoting care has to be taken to recognise bias and the need to ensure the individuals remain in paid employment or keep their consulting roles. Having said that it is also fair to say there are some seriously well written and technically supported items that deserve attention from members of bodies such as PESA and SPE. \nMeaning it is important to make up your own mind on the correctness and reasonableness of anything out there meant to be influencing or causing changes in society reactions\, laws and investments. \nQuoting from Wikipedia\n“Net Zero claims vary enormously in how credible they are\, but most have low credibility despite the increasing number of commitments and targets. While 61% of global carbon dioxide emissions are covered by some sort of net zero target\, credible targets cover only 7% of emissions. This low credibility reflects a lack of binding regulation. It is also due to the need for continued innovation and investment to make decarbonisation possible.” \nPESA Presentation \nThis PESA presentation about looking at:\n1/ what really is meant by NET ZERO in a legal\, accounting and recording sense for oil and gas operators. More particularly defining both aspects of the costs/debits imposed by emissions on the one hand and the credits such as carbon credits; and\n2/ various positions of the more public participants\, determining any bias factors\, discounting or elevating opinions of relevance.\nWhile it is impossible to ignore politicians and their influencers in this scene\, the intention is to focus away from political rhetoric and focus on realities including real world calculations\, legal obligations and accounting disclosures. \nPESANSWBranch-AGMNotice2026 \nPESA NSW Branch Committee Nomination Form 2026 \nPESA NSW-ACT Branch AGM 2026 -Annual Report for 2025 \nPESA NSW 2025 AGM Minutes
URL:https://pesa.com.au/events/pesa-nsw-april-2026-technical-lunch/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
ORGANIZER;CN="PESA New South Wales":MAILTO:pesa.nsw@pesa.com.au
GEO:-33.872562;151.2089734
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Castlereagh Boutique Hotel 169 Castlereagh St Sydney NSW 2000 Australia;X-APPLE-RADIUS=500;X-TITLE=169 Castlereagh St:geo:151.2089734,-33.872562
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Perth:20260317T180000
DTEND;TZID=Australia/Perth:20260317T200000
DTSTAMP:20260709T163006Z
CREATED:20260218T081436Z
LAST-MODIFIED:20260709T163006Z
UID:10008760-1773770400-1773777600@pesa.com.au
SUMMARY:PESA WA: Stretching or Flexing - A Review of the Triassic from the Northern Carnarvon and Roebuck Basins
DESCRIPTION:Hosted with thanks to our Platinum Sponsor: \n \nand Gold Sponsor: \n \nand Silver Sponsors: \n \n \n \nand Bronze Sponsor: \n \n\nPESA WA invites you to our technical evening event on Tuesday 17 March at the Shoe Bar:\nStretching or Flexing – A Review of the Triassic from the Northern Carnarvon and Roebuck Basins\nPresented by Alex Maftei (Curtin University)\nIn this technical session\, Alex Maftei will present the results of his giant interpretation effort\, which includes Triassic formation tops for 442 wells within a sequence stratigraphic framework\, at least four key Triassic horizons\, and more than 2300 faults interpreted in an extremely large seismic dataset. This study also incorporates basin-wide structural and isochron maps of the main Triassic sequences\, depth conversion\, and a velocity model that resulted in isopach maps\, establishing the enormous thickness of the Triassic (up to 16 km). Forty wells were backstripped\, and the total and tectonic subsidence were determined. The backstripped thickness at the beginning of the Jurassic was used to evaluate the flexural component of the subsidence (46–73% of the total subsidence). The elastic lithosphere thickness that best fits the data is between 20 and 30 km. The presentation will include notes on the wider development of Triassic volcanism\, stratigraphic observations on the Triassic from the western Exmouth Plateau\, such as a prograding deltaic system and incised valleys at the Ladinian-Carnian boundary\, multi-erosional surfaces\, and canyons in the Norian\, and the earlier development of reefs in the Late Norian. \nTicket Prices: \nMember (Early Bird until 5pm Tuesday 10 March): $40.00 \nMember: $50.00 \nStudent Member: $20.00 \nNon-Member: $60.00 \nEarly bird pricing ends Tuesday 10 March (1 week prior) at 5pm (AWST). All ticket sales close at 5pm Friday 13 March.  No further tickets will be allocated after this time. \nPlease note that this event will be held on Tuesday 17 March at the Shoe Bar (Shop GSO7 Yagan Square\, 376 – 420 Wellington St\, Perth WA 6050).
URL:https://pesa.com.au/events/pesa-wa-stretching-or-flexing-a-review-of-the-northern-carnarvon-and-roebuck-basins/
LOCATION:Shoe Bar\, Shop GSO7 Yagan Square\, 376 - 420 Wellington St\, Perth WA 6050\, Perth\, Western Australia\, 6050\, Australia
CATEGORIES:Evening Event,Industry,Technical Talk,WA
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2026/02/PESA-17-March-2026-Alex-Maftei.avif
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260310T120000
DTEND;TZID=Australia/Sydney:20260310T143000
DTSTAMP:20260225T012306Z
CREATED:20260225T012306Z
LAST-MODIFIED:20260225T012306Z
UID:10008763-1773144000-1773153000@pesa.com.au
SUMMARY:PESA NSW: The Geology and Petroleum Resources of Venezuela
DESCRIPTION:The Geology and Petroleum Resources of Venezuela\nPESA NSW invite you to our technical luncheon. Presented by Phil Cooney (PESA NSW President). \nVenezuela\, located on the northern edge of South America\, is only slightly bigger than NSW yet it has produced an estimated 50 billion barrels of oil to date and still contains oil reserves of over 300 billion barrels (more than the 267 billion barrels of Saudi Arabia) and 18% of the world’s reserves. Phil will talk about the extraordinary fit of Source\, Reservoir\, Seal and Migration Timing that resulted in Venezuela’s mega accumulations as well as a brief description of how and when they were discovered and the effect on Venezuela itself. \n 
URL:https://pesa.com.au/events/pesa-nsw-meeting-march-2026/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
ORGANIZER;CN="PESA New South Wales":MAILTO:pesa.nsw@pesa.com.au
GEO:-33.872562;151.2089734
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Castlereagh Boutique Hotel 169 Castlereagh St Sydney NSW 2000 Australia;X-APPLE-RADIUS=500;X-TITLE=169 Castlereagh St:geo:151.2089734,-33.872562
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20260305T120000
DTEND;TZID=Australia/Brisbane:20260305T143000
DTSTAMP:20260227T002552Z
CREATED:20260203T032307Z
LAST-MODIFIED:20260227T002552Z
UID:10008755-1772712000-1772721000@pesa.com.au
SUMMARY:PESA QLD: Barry Goldstein Medal Lecture Tour March 2026 – Bruce Ainsworth
DESCRIPTION:Honouring the Humble Clinoform: Towards a Reservoir Modelling Best Practice\nPresented by Dr. Bruce Ainsworth\, recipient of the 2025 Barry Goldstein Medal \nClinoforms have fascinated Bruce since first pondering their economic significance in Shell Research Laboratories in the early 1990’s. These dipping stratal surfaces are ubiquitous in the stratigraphic record but often ignored with regard to their potential significant influence on fluid flow in the subsurface. Whether you are interested in hydrocarbon or groundwater extraction\, carbon sequestration\, or sediment hosted uranium\, you need to know if you are dealing with clinoforms. Clinoforms can have significant impacts on resource recovery and emplacement. Ignoring them or simply not recognising them can have profound (usually) negative impacts on project value. Key to making clinoforms your best friend are three steps; 1) recognition\, 2) uncertainty management\, and 3) targetted modelling. This talk will guide the clinoform user through these steps and suggest a reservoir modelling best practice for honouring the humble clinoform. \n  \nTickets on sale now.\nStandard ticket pricing will go into affect on Friday\, 27th February 5:00 PM. \nPlease note\, this event will commence at 12:30pm (arrival from 12:00pm).
URL:https://pesa.com.au/events/pesa-qld-barry-goldstein-medal-lecture-tour-march-2026-bruce-ainsworth/
LOCATION:Stamford Plaza Brisbane\, 39 Edward St\, Brisbane QLD\, Brisbane\, 4000\, Australia
CATEGORIES:QLD,Technical Lunch,Technical Talk
ATTACH;FMTTYPE=image/avif:https://pesa.com.au/wp-content/uploads/2025/11/Clinoforms.avif
ORGANIZER;CN="PESA QLD":MAILTO:qld-secretary@pesa.com.au
GEO:-27.4714163;153.0303949
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Stamford Plaza Brisbane 39 Edward St Brisbane QLD Brisbane 4000 Australia;X-APPLE-RADIUS=500;X-TITLE=39 Edward St:geo:153.0303949,-27.4714163
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260210T120000
DTEND;TZID=Australia/Sydney:20260210T143000
DTSTAMP:20260209T230558Z
CREATED:20260116T050322Z
LAST-MODIFIED:20260209T230558Z
UID:10008753-1770724800-1770733800@pesa.com.au
SUMMARY:PESA NSW: Barry Goldstein Medal Lecture Tour Feb 2026 – Bruce Ainsworth
DESCRIPTION:Honouring the Humble Clinoform: Towards a Reservoir Modelling Best Practice\nSponsored by Santos \nPESA NSW invite you to our technical luncheon. Presented by Bruce Ainsworth (PESA Barry Goldstein Medal Lecture Tour 2026). \nClinoforms have fascinated Bruce since first pondering their economic significance in Shell Research Laboratories in the early 1990’s. These dipping stratal surfaces are ubiquitous in the stratigraphic record but often ignored with regard to their potential significant influence on fluid flow in the subsurface. Whether you are interested in hydrocarbon or groundwater extraction\, carbon sequestration\, or sediment hosted uranium\, you need to know if you are dealing with clinoforms. Clinoforms can have significant impacts on resource recovery and emplacement. Ignoring them or simply not recognising them can have profound (usually) negative impacts on project value. Key to making clinoforms your best friend are three steps; 1) recognition\, 2) uncertainty management\, and 3) targetted modelling. This talk will guide the clinoform user through these steps and suggest a reservoir modelling best practice for honouring the humble clinoform. \n 
URL:https://pesa.com.au/events/2026-pesa-nsw-february-talk/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
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ORGANIZER;CN="PESA New South Wales":MAILTO:pesa.nsw@pesa.com.au
GEO:-33.872562;151.2089734
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Adelaide:20251211T120000
DTEND;TZID=Australia/Adelaide:20251211T143000
DTSTAMP:20251201T003144Z
CREATED:20251119T004855Z
LAST-MODIFIED:20251201T003144Z
UID:10008750-1765454400-1765463400@pesa.com.au
SUMMARY:PESA SA/NT Annual General Meeting & Christmas Luncheon 2025
DESCRIPTION:PESA SA/NT\nAnnual General Meeting & Christmas Luncheon\n\nDate: Thursday\, 11 December 2025\, Time: 12:30 PM\nVenue: Ayers House\, North Terrace\, Adelaide\n  \nAnnual General Meeting \nThe PESA South Australia/Northern Territory Branch invites all members to attend the 2025 Annual General Meeting (preceding the Christmas Luncheon) .This important event provides a valuable opportunity to reflect on the year’s progress\, recognize our collective achievements\, and plan for the year ahead. \nThe AGM will be held immediately prior to the PESA SA/NT Christmas Luncheon\, offering members the chance to engage in both professional discussion and seasonal celebration. \nAgenda \n\nPresident’s Report – Review of the Branch’s activities and milestones accomplished throughout 2025.\n\nTreasurer’s Report – Presentation of the financial summary and key fiscal updates. \n\n\nProposed 2026 Committee – Introduction of the nominated committee members for the upcoming year. \n\n\nAdditional Nominations from the Floor – Opportunity for further nominations to be put forward. \n\n\nAny Other Business (AOB) – Open discussion of other matters of interest to members. \n\n\nAll members are encouraged to attend\, contribute to the discussions\, and participate in the formation of the 2026 committee. Your engagement helps guide the direction of our Branch and ensures that our community continues to thrive. \n  \nChristmas Luncheon\nChristmas Geo-Crackers with David Grybowski\n\n  \nAbstract: \nBorn 29 May 2006 and not dead yet. Volcanoes are no strangers to Indonesia and Lusi is the ……………………………………………………………..wisdom in this thrilling Christmas luncheon. \nOops sorry! Wrong talk. A Christmas lunch is a time to have a few laughs\, and when you dig deep into the Lusi disaster\, it deserves our serious consideration later in the year.   \n For your entertainment\, David will instead present a trio of Christmas crackers.  \n\n Why Does The Niagara Fall?\n\n Forbes has Niagara Falls in second on their bucket list of travel destinations – wedged in between the Maldives and the Mona Lisa. But what is the geology over which the Niagara falls? Newlywed couples don’t care. Nobody is curious enough to ask this question except the Petroleum Exploration Society of Australia’s SA/NT branch. Once again\, David Grybowski will give you all the answers you’ve been yearning for.  \n\n Petroleum Dreaming of the Adelaide Plains \n\n In a short presentation\, David will geo-fantasise the petroleum reservoir targets present in the geomorphology of the Adelaide Plains as if they were depositional environments under a seal of transgressive mudstones and thousands of metres of overburden.   \n\n The Ancient Turkish Coast \n\n Time permitting\, David will reprise part of his Cry Me A River presentation that he gave in 2022 about the fluvial filling of the River Meander in western Turkey that left ancient ports stranded from the sea.  \n\n And a sneak preview of Lusi – The Greatest Mud Volcano Disaster in the World. \n\nA thrilling Whatdunnit and Who-pay-for-it.  \n  \nDavid returns to the PESA podium with another Christmas cracker-good pole axing of industry norms. October 2022 saw fluvial hi jinks with Cry Me A River and the world premiere of the petroleum play pitch The Project – A Play About Not Working Together.  For the Christmas luncheon of 2023\, David shared his rock-starred childhood with The Books That Hooked Me – an investigation of the childhood books and collectables that turned his head toward geology. David then revealed his interest in engineering with The Role of Toilet Paper; a descriptive tour de force of public paper dispensers we all love to hate. David’s 35 years in petroleum geology has given him ample opportunity to ponder where things might have gone wrong. Most of his experience was with Santos. \n Tickets for the luncheon: \n\n\n\nMembers $80.00\nNon-Members $120\nStudents $30.00\n\n\n\n\nEvent Details:\nThursday 11 December 2025 \nLuncheon: 12 pm for a 12:30 pm start \nThe luncheon will consist of 3 courses and a 3-hour drinks package \nPlace: Ayer’s House\, 288 North Tce\, Adelaide \nBookings close at 5 pm Monday\, 8th December 2025 \nAny late bookings will incur an additional $20 fee. Strictly no walk-ins.
URL:https://pesa.com.au/events/pesa-sa-nt-christmas-luncheon-2025/
LOCATION:Ayers House – Ballroom\, 288 North Terrace\, Adelaide\, South Australia\, 5000
CATEGORIES:SA / NT,Technical Lunch,Technical Talk
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20251209T120000
DTEND;TZID=Australia/Sydney:20251209T143000
DTSTAMP:20251205T033426Z
CREATED:20251121T005656Z
LAST-MODIFIED:20251205T033426Z
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SUMMARY:NSW Re-union Christmas Party 2025
DESCRIPTION:Geothermal rising can save Tomago without big government subsidies.\nPESA NSW and SPE NSW invite you to the 2025 Christmas Party. This will be a re-union meeting for NSW oil and gas professionals\, so come along for some laughs with old friends. \nNew technology to capture affordable geothermal energy. This talk describes a long awaited breakthrough in technology to deliver plentiful cheap geothermal energy. The obstacles for geothermal energy have been: \n\nDifficulties of using multiple fractures to reliably connect “injection and “production” wells deep under ground\nSite specific nature of traditional geothermal resources\nAffordable drilling technology\n\nAdvances in geothermal technologies from the USA are rapidly changing the economic potential\, including: \n\nAffordably capturing 300 degree heat from wells too deep to drill by using patented deep fraccing\nSimilarly affordably capturing 200 degree heat at drillable 5 km by cycling water through planar fractures; and\nUsing similar technology for underground pumped hydro storage more cheaply than batteries and surface pumped hydro with significantly less community and environmental impact\n\n 
URL:https://pesa.com.au/events/2025-pesa-nsw-christmas-party/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
ORGANIZER;CN="PESA New South Wales":MAILTO:pesa.nsw@pesa.com.au
GEO:-33.872562;151.2089734
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20251119T171500
DTEND;TZID=Australia/Brisbane:20251119T193000
DTSTAMP:20251113T064546Z
CREATED:20251022T213820Z
LAST-MODIFIED:20251113T064546Z
UID:10008736-1763572500-1763580600@pesa.com.au
SUMMARY:PESA QLD: Technical Evening\, November 19: Henry W. Posamentier on 'Recent applications of seismic geomorphology/stratigraphy'
DESCRIPTION:PESA Queensland welcomes 2025 PESA Distinguished Lecturer\, Henry W. Posamentier to present a technical evening presentation on Recent applications of seismic geomorphology/stratigraphy: Deep-water deposits of the Bay of Bengal and the Norwegian Sea. The technical evening will be held at the Transcontinental Hotel. \nDue to the significant crossover with our peer society ASEG (Australian Society of Exploration Geophysicists)\, ASEG members are welcomed to attend at PESA member pricing. \nSpeaker travel and accommodation has been supported by Santos Ltd. \n\n\n\nPresentation:\nRecent applications of seismic geomorphology/stratigraphy: Deep-water deposits of the Bay of Bengal and the Norwegian Sea\n\n\nVenue:\nTranscontinental Hotel\, 482 George St\, Brisbane City QLD 4000\n\n\nDate & Time:\nWednesday\, 19 November 5:15 PM for 6:00 PM Start\n\n\n\n\n  \nRecent applications of seismic geomorphology/stratigraphy: Deep-water deposits of the Bay of Bengal and the Norwegian Sea\nHenry W. Posamentier\nThis presentation will document the seismic stratigraphic and seismic geomorphologic expressions of deep-water deposits of the Bay of Bengal and the Norwegian Sea. They comprise both turbidites as well as mass transport deposits. The turbidite deposits from the Bay of Bengal include leveed channel complexes\, terminal fans\, and overbank sediment waves. With respect to terminal fans\, there are those that terminate basinward of leveed channel systems and are relatively large\, and those that are deposited late within a lowstand cycle of deposition and are confined between the levees of precursor larger channels\, and are relatively small. Intra-basinal channels (i.e.\, channels that start and end on the basin floor) are observed within abandoned meander loops as well as interchannel overbank terrains. These intra-basinal channels are characterized by low sinuosity and likely are mud-filled with no exploration potential.  \nMass transport deposits from the Norwegian Sea include flows\, slumps\, and slides\, as well as isolated outrunner blocks. These deposits are associated with significant substate erosion up to 250m. The outrunner blocks are observed in clusters\, generally in radiating patterns down-system. Some of the outrunner blocks at the termini of erosional furrows are associated with sediment tails orthogonal to the direction of transport\, indicating bottom current direction from southwest to northeast. In addition\, volcanic intrusive deposits will be documented. These intrusives comprise both dikes and sills. Some of the dikes are associated with laccoliths in the shallower section.   \n  \n\n  \nTickets for the Technical Evening Talk can be purchased below. \nEarly Bird ticket pricing will be available until Wednesday\, 12 November 5:30 PM – to avoid disappointment please register before this time. \n\n\n\n\nEarly Bird Ticket Price\nStandard Ticket Price\n\n\n\n\nMembers – $35\nNon-Members – $45\nStudent / Retired Members – $25\nMembers – $45\nNon-Members – $55\nStudent / Retired Members – $35\n\n\n\n\n  \nSpeaker travel and accommodation supported by Santos Ltd.
URL:https://pesa.com.au/events/pesa-qld-evening-talk-19-november-henry-w-posamentier/
LOCATION:Transcontinental Hotel\, Brisbane
CATEGORIES:Evening Event,Industry,QLD,Technical Talk
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20251111T120000
DTEND;TZID=Australia/Sydney:20251111T143000
DTSTAMP:20251031T044508Z
CREATED:20251024T020943Z
LAST-MODIFIED:20251031T044508Z
UID:10008742-1762862400-1762871400@pesa.com.au
SUMMARY:2025 PESA NSW November Talk
DESCRIPTION:Australia is endowed with abundant\, high-quality energy commodity resources\, which provide reliable energy for domestic use and underpin our status as a major global energy provider. \nThese resources make a substantial contribution to the nation’s gross domestic product and export earnings. Geoscience Australia (GA) has a long history of supporting the nation’s energy sector\, delivering independent geoscientific advice and data to underpin informed decision-making regarding Australia’s energy resources across government\, industry\, and the community. \nA key piece of work than informs this function is the annual publication Australia’s Energy Commodity Resources (AECR). To set the scene\, this talk will introduce the recently published AECR2025 publication before presenting an overview of GA’s current energy program. \nUnder the Resourcing Australia’s Prosperity initiative\, GA is focusing on low carbon energy resources that will help Australia achieve net zero. The forward program includes mapping and assessing geological capacity for CO₂ storage (both onshore and offshore)\, identifying potential hydrogen storage sites\, and evaluating natural hydrogen resources. These activities draw on GA’s expertise and existing data to provide new insights and lower investment risk in new resource developments.
URL:https://pesa.com.au/events/2025-pesa-nsw-november-lunch/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
ORGANIZER;CN="PESA New South Wales":MAILTO:pesa.nsw@pesa.com.au
GEO:-33.872562;151.2089734
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20251014T120000
DTEND;TZID=Australia/Sydney:20251014T143000
DTSTAMP:20250919T042941Z
CREATED:20250918T100104Z
LAST-MODIFIED:20250919T042941Z
UID:10008735-1760443200-1760452200@pesa.com.au
SUMMARY:2025 Acreage Release in the Polda and Otway Basins\, SA
DESCRIPTION:Abstract: \nA key motivation for the South Australian 2025 acreage release is the looming shortfall in energy supply in the southeast Australian market. To facilitate the discovery and production of more gas\, the South Australian Department for Energy and Mining (SADEM) is currently offering prospective acreage in a competitive bid process in two basins (Polda and Otway) across the state.
URL:https://pesa.com.au/events/2025-acreage-release-in-the-polda-and-otway-basins-sa/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
ORGANIZER;CN="PESA New South Wales":MAILTO:pesa.nsw@pesa.com.au
GEO:-33.872562;151.2089734
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Castlereagh Boutique Hotel 169 Castlereagh St Sydney NSW 2000 Australia;X-APPLE-RADIUS=500;X-TITLE=169 Castlereagh St:geo:151.2089734,-33.872562
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Adelaide:20251002T190000
DTEND;TZID=Australia/Adelaide:20251002T203000
DTSTAMP:20250521T085005Z
CREATED:20250521T085005Z
LAST-MODIFIED:20250521T085005Z
UID:10008691-1759431600-1759437000@pesa.com.au
SUMMARY:Field Geology Club Meeting: Sunset Crater\, volcano national monument
DESCRIPTION:We invite you to the Field Geology Club-Hosted Event: \nSunset Crater\, volcano national monument \nSpeaker :Paul Curnow \nPlease note that this event has been organized externally – please reach out to the Field Geology Club for more information: \ncontact@fieldgeologyclubsa.org.au or via their website http://fieldgeologyclubsa.org.au. \nDate: 2nd October 2025
URL:https://pesa.com.au/events/field-geology-club-meeting-sunset-crater-volcano-national-monument/
LOCATION:NSW
CATEGORIES:SA / NT,Technical Talk
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Adelaide:20250929T173000
DTEND;TZID=Australia/Adelaide:20250929T193000
DTSTAMP:20250924T033040Z
CREATED:20250908T005819Z
LAST-MODIFIED:20250924T033040Z
UID:10008733-1759167000-1759174200@pesa.com.au
SUMMARY:PESA SA/NT Evening Technical Talk: Three-Dimensional Architecture of Wave-Dominated Delta Deposits
DESCRIPTION:PESA SA : Evening Technical Talk\nThree-Dimensional Architecture of Wave-Dominated Delta Deposits\nBrian Willis1\, Tao Sun2 and Bruce Ainsworth3\n  \n1. Presenter\, Willis Geoscience\, Consultant\, Longmont\, CO\, USA; 2. Chevron Technology Center\, Research Fellow\, Houston\, TX\, USA; 3. Adjunct Professor\, University of Adelaide\, Australia. \nSep. 29th 2025\n  \nJoin PESA SA/NT for an Exclusive Distinguished Lecturer Event Featuring Brian Willis \nPESA SA/NT is proud to host Brian Willis\, renowned fluvial sedimentologist and stratigrapher with decades of experience at Chevron and BP\, as part of our Distinguished Lecturer Tour. This PESA Distinguished Lecture is made possible with the generous support of Santos Ltd. \nOverview:\nNew numerical wave-influenced delta depositional models are challenging long-held rational for interpreting sea level variations recorded by wave-dominated shallow-marine successions. Shallow-marine\, wave-dominated deposits (parasequences) are generally inferred to exhibit a decrease in wave energy and grain size with increasing water depth and to occur in facies belts that are laterally continuous for long distances along strike. Bedding geometry and vertical facies successions within these parasequences are interpreted in relation to a prograding equilibrium shoreface profile (cf. Bruun rule) and a gradual upward-coarsening facies progression (cf. Walther’s law). Sea-level fall is commonly inferred to generate a sharp-based shoreface succession\, characterized by an abrupt vertical transition from heterolithic lower shoreface to sandy upper shoreface deposits across a marine erosion surface. A truncated vertical shoreface succession\, capped by a marine erosion surface\, is inferred to record significant wave ravinement during sea level rise and transgression. \nThree-dimensional\, process-physics-based\, coupled hydrodynamic-morphodynamic wave-influenced delta models suggest that wave-dominated deltas will develop a sandy shoreface inner clinoform dipping from the subaerial delta plain to a relatively flat wave-scoured subaqueous delta top\, which is laterally separated from a muddier delta front outer clinoform that dips from the subaqueous delta top edge to the shelf floor. As these systems prograde\, deposits of these dual-clinoforms will become vertically stacked and will be separated by a regressive surface of marine erosion formed on the subaqueous delta top. Grain-size contrasts between these vertically stacked clinoform deposits reflect differences in sediment-transport directions and sorting under river- and wave-driven littoral currents along the coast\, and cannot be uniquely related to sea-level changes. Gradual vertical facies successions develop where waves are less effective at reworking river-supplied sediment alongshore. In contrast\, sharp-based shoreface deposits record more effective wave separation of sands onto the shoreface clinoform as muds are preferentially transported offshore onto the subaqueous delta clinoform. \nThe continuity of a regressive surface of marine erosion over many tens to hundreds of kilometres across mid-shelf regions of some stratigraphic sequences reflects a gradual lateral shift in the position of littoral current erosion on a subaqueous delta top. Timelines cross such vertical lithic discontinuities throughout the extent of a prograding deposit\, and the regressive surface of marine erosion thus has little chronostratigraphic significance. The model results are used to suggest: 1) Characteristic strongly asymmetric wave-dominated parasequences suggest common river avulsion at the start of transgression\, 2) Observed down-dip transitions from “gradual-based” to “sharp-based” shoreface deposits might record reduced sediment supply to the coast relative to rates of longshore drift as the system expands toward its auto-retreat limit\, rather than transitions from normal to forced regression\, and 3) Regional “top-truncated” shoreface successions might record progradation of dual-clinoform shorelines with wide deviation in net direction of regional sediment supply and shallow-water wave transport\, rather than significant regional transgressive ravinement. The results of these models suggest caution in inferring sea-level changes from the character of vertical facies changes observed in individual well logs and isolated outcrop exposures. The models suggest new facies relationships that require testing in modern systems\, outcrops\, and subsurface examples. \n  \n  \nTimings for the event: \n5:30 to 6:00 – pre-talk drinks and canapes\n6:00 to 7:00 – evening talk and Q&A\n7:00 to 7:30 – post-talk drinks in the bar \nPESA SA/NT will provide a selection of canapes. Beer\, wine and soft drinks are available and can be purchased from the bar.  \nTicket prices: Students Free\, Members $30\, Non-Members $40\, Fluvial Stratigraphy Workshop attendees Free \nPlease note that ticket sales will close on Thursday September 25th at 5:00 PM. \n  \n 
URL:https://pesa.com.au/events/pesa-sa-nt-evening-technical-talk-three-dimensional-architecture-of-wave-dominated-delta-deposits/
LOCATION:Ayers House – Ballroom\, 288 North Terrace\, Adelaide\, South Australia\, 5000
CATEGORIES:Evening Event,SA / NT,Technical Talk
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Adelaide:20250928T080000
DTEND;TZID=Australia/Adelaide:20250929T170000
DTSTAMP:20250925T051116Z
CREATED:20250511T082736Z
LAST-MODIFIED:20250925T051116Z
UID:10008683-1759046400-1759165200@pesa.com.au
SUMMARY:PESA SA : Meandering Murray Field Trip & Fluvial Stratigraphy Workshop
DESCRIPTION:PESA SA : Meandering Murray Field Trip & Fluvial Stratigraphy Workshop\nMagnificent Meandering Murray field trip: a modern-day fluvial system analogue\nSep. 28th and 29th 2025\nBrian Willis (ex Chevron ) & Andrew McKerron (Beach Energy)\n  \nJoin PESA SA/NT for an Exclusive Distinguished Lecturer Event Featuring Brian Willis \nPESA SA/NT is proud to host Brian Willis\, renowned fluvial sedimentologist and stratigrapher with decades of experience at Chevron and BP\, as part of our Distinguished Lecturer Tour. This PESA Distinguished Lecture is made possible with the generous support of Santos Ltd. \n  \nThis exciting two-day workshop offers a unique blend of field and classroom learning: \n  \n\nDay 1: Field Excursion – Sunday\, 28 September Explore the stunning landscapes of the Murray River on a guided geological field trip led by Brian Willis and Andrew McKerron\n\n          Ticket Price: Free to attend | Logistics (Self organized) meeting point will be advised closer to the date \n  \n\nDay 2: Fluvial Reservoir Heterogeneity Characterization Workshop – Monday\, 29 September \n\n         Ticket Price: $250 per participant | Location: Ayers House \nWhether you’re a student\, professional\, or enthusiast\, this is a rare opportunity to learn directly from one of the industry’s leading experts. \nLimited spots available – register now! \n  \nWorkshop Details:\nFluvial Systems – From River to Reservoir\nTraditional characterization of fluvial reservoirs focuses on relating vertical facies patterns observed in core samples to a static aerial view of an analogue river. Such comparisons fall short of generating precise predictions of the distribution of reservoir heterogeneities that can impact subsurface fluid flow and reservoir development behavior. Heterogeneity patterns within fluvial deposits are emergent structures (i.e.\, in systems analysis\, “emergent structures” are patterns that arise from the collective actions of many individual parts and behaviors and have properties that the parts themselves do not have). In fluvial deposits\, these patterns are formed by shifts in deposition and erosion during river floods\, dynamic changes in grain sorting along a river channel during lateral migration and cutoff within a channel belt\, and the stacking of channel belts as the floodplain aggrades. This course aims to build on traditional fluvial facies models to develop a more dynamic understanding of how a hierarchy of depositional processes defines heterogeneity patterns within fluvial reservoirs. \n• Discuss terminology and concepts to define the hierarchy of processes and deposits that control reservoir-heterogeneity 3D patterns and scaling. \n• Examine process-based\, numerical\, river depositional models to better understand the emergence of heterogeneities within evolving channel belts. \n• Catalogue 3D facies patterns developed within a range of river systems as a template for defining reservoir heterogeneity. \nLectures will introduce the hierarchical organization of fluvial deposits and discuss models for the development of heterogeneities within fluvial channel belts. The focus is on considering how dynamic changes preserve 3D facies patterns and understanding how these facies patterns vary between a wide range of fluvial systems. Well log interpretation and correlation exercises will demonstrate subsurface applications. The workshop is structured to challenge experienced practitioners to rethink standard practices\, while remaining general enough to benefit geologists with little experience in fluvial systems\, as well as reservoir modelers and engineers\, with a broad overview of potential subsurface variation patterns. \n  \nWorkshop Timing: \n9:30 am-5:00 pm \n  \nBrian Willis will be giving an evening talk at 5:30 pm. The talk is free for workshop attendees\, but registration is required. Please register at: \nhttps://pesa.com.au/events/pesa-sa-nt-evening-technical-talk-three-dimensional-architecture-of-wave-dominated-delta-deposits/ \n  \nPlease Note: \nDay 2: Fluvial Reservoir Heterogeneity Characterization Workshop – Monday\, 29 September-  \nComplimentary Registration for Students – 9 Seats Available \nPlaces will be allocated on a first-come\, first-served basis. Early registration is encouraged due to limited availability. \n  \nPlease note that ticket sales will close on Friday September 26th at 5:00 PM. \n  \n  \n  \n  \n  \n 
URL:https://pesa.com.au/events/pesa-sa-field-meandering-murray-field-trip/
LOCATION:Ayers House – Ballroom\, 288 North Terrace\, Adelaide\, South Australia\, 5000
CATEGORIES:Excursion,SA / NT,Technical Talk
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20250924T180000
DTEND;TZID=Australia/Brisbane:20250924T193000
DTSTAMP:20250919T041645Z
CREATED:20250903T220355Z
LAST-MODIFIED:20250919T041645Z
UID:10008731-1758736800-1758742200@pesa.com.au
SUMMARY:PESA QLD: Evening Talk\, 24 September: Three-Dimensional Architecture of Wave-Dominated Delta Deposits - Dr Brian Willis
DESCRIPTION:  \nPESA Queensland welcomes Brian Willis to present a technical evening presentation on Three-Dimensional Architecture of Wave-Dominated Delta Deposits. The evening will be held at the Brisbane Port Office Hotel\, Blue Room. Extended abstract below. \nSpeaker travel and accommodation have been supported by Santos Ltd. \n\n\n\nPresentation:\nThree-Dimensional Architecture of Wave-Dominated Delta Deposits\n\n\nVenue:\nPort Office Hotel Brisbane\, 40 Edward St\, Brisbane City QLD 4000\n\n\n\nDate & Time:\nWednesday\, 24 September 6:00 PM\n\n\n\n\n  \nThree-Dimensional Architecture of Wave-Dominated Delta Deposits\nBrian Willis1\, Tao Sun2 and Bruce Ainsworth3\n1. Presenter\, Willis Geoscience\, Consultant\, Longmont\, CO\, USA; 2. Chevron Technology Center\, Research Fellow\, Houston\, TX\, USA; 3. Adjunct Professor\, University of Adelaide\, Australia. \nNew numerical wave-influenced delta depositional models are challenging long-held rational for interpreting sea level variations recorded by wave-dominated shallow-marine successions. Shallow-marine\, wave-dominated deposits (parasequences) are generally inferred to exhibit a decrease in wave energy and grain size with increasing water depth and to occur in facies belts that are laterally continuous for long distances along strike. Bedding geometry and vertical facies successions within these parasequences are interpreted in relation to a prograding equilibrium shoreface profile (cf. Bruun rule) and a gradual upward-coarsening facies progression (cf. Walther’s law). Sea-level fall is commonly inferred to generate a sharp-based shoreface succession\, characterized by an abrupt vertical transition from heterolithic lower shoreface to sandy upper shoreface deposits across a marine erosion surface. A truncated vertical shoreface succession\, capped by a marine erosion surface\, is inferred to record significant wave ravinement during sea level rise and transgression.  \nThree-dimensional\, process-physics-based\, coupled hydrodynamic-morphodynamic wave-influenced delta models suggest that wave-dominated deltas will develop a sandy shoreface inner clinoform dipping from the subaerial delta plain to a relatively flat wave-scoured subaqueous delta top\, which is laterally separated from a muddier delta front outer clinoform that dips from the subaqueous delta top edge to the shelf floor. As these systems prograde\, deposits of these dual-clinoforms will become vertically stacked and will be separated by a regressive surface of marine erosion formed on the subaqueous delta top. Grain-size contrasts between these vertically stacked clinoform deposits reflect differences in sediment-transport directions and sorting under river- and wave-driven littoral currents along the coast\, and cannot be uniquely related to sea-level changes. Gradual vertical facies successions develop where waves are less effective at reworking river-supplied sediment alongshore. In contrast\, sharp-based shoreface deposits record more effective wave separation of sands onto the shoreface clinoform as muds are preferentially transported offshore onto the subaqueous delta clinoform.  \nThe continuity of a regressive surface of marine erosion over many tens to hundreds of kilometres across mid-shelf regions of some stratigraphic sequences reflects a gradual lateral shift in the position of littoral current erosion on a subaqueous delta top. Timelines cross such vertical lithic discontinuities throughout the extent of a prograding deposit\, and the regressive surface of marine erosion thus has little chronostratigraphic significance. The model results are used to suggest: 1) Characteristic strongly asymmetric wave-dominated parasequences suggest common river avulsion at the start of transgression\, 2) Observed down-dip transitions from “gradual-based” to “sharp-based” shoreface deposits might record reduced sediment supply to the coast relative to rates of longshore drift as the system expands toward its auto-retreat limit\, rather than transitions from normal to forced regression\, and 3) Regional “top-truncated” shoreface successions might record progradation of dual-clinoform shorelines with wide deviation in net direction of regional sediment supply and shallow-water wave transport\, rather than significant regional transgressive ravinement. The results of these models suggest caution in inferring sea-level changes from the character of vertical facies changes observed in individual well logs and isolated outcrop exposures. The models suggest new facies relationships that require testing in modern systems\, outcrops\, and subsurface examples. \n \n  \n\n  \nTickets for the Technical Evening Talk can be purchased below. \nStandard ticket pricing will be available until Friday\, 19 September 5:30 PM – To avoid disappointment please register before this time. \n\n\n\n\nTicket Price\n\n\n\n\n\nMembers – $35\nNon-Members – $45\nStudent / Retired Members – $25\n\n\n\n\n\n 
URL:https://pesa.com.au/events/pesa-qld-evening-talk-24-september-three-dimensional-architecture-of-wave-dominated-delta-deposits-dr-brain-willis/
LOCATION:Port Office Hotel\, 40 Edward St\, Brisbane\, Queensland\, 4000\, Australia
CATEGORIES:Evening Event,Industry,QLD,Technical Talk
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