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DTSTART;TZID=Australia/Brisbane:20250901T081500
DTEND;TZID=Australia/Brisbane:20250901T180000
DTSTAMP:20260606T055735
CREATED:20250522T060143Z
LAST-MODIFIED:20250817T232316Z
UID:10008694-1756714500-1756749600@pesa.com.au
SUMMARY:PESA QLD 2025 Symposium - Sponsorship Packages
DESCRIPTION:  \nThe Organising Committee are pleased to invite you to the 2025 PESA Queensland Symposium as one of this year’s Sponsors. \nThe symposium will be held at the Brisbane Convention and Exhibition Centre\, South Bank on Monday 1st September 2025. Every year this event provides an interesting update on activities in the energy resources sector\, and a wonderful networking opportunity. We need your help to make that happen in 2025. \nThis annual event brings together speakers and delegates from across the wider energy industry for a fantastic\, informative and educational day. The organising committee anticipates up to 100 industry delegates in attendance with approximately 12 presentations scheduled over the day in the four sponsored sessions. A selection of Display Booths and Student Posters will be a feature of the break-out area between sessions. \nThe PESA Queensland Symposium is made possible with the support of Event Sponsors. This year\, PESA QLD is offering two levels of Event Sponsorship – Gold and Silver Sessions Sponsors. Companies are also welcomed to purchase an Exhibition Booth Display\, or support PESA by sponsoring the costs for providing the coffee cart; AV costs; subsidised attendance for students or the post-symposium cocktail function. We are also happy to discuss other options upon request – please ask.  We certainly hope that you will choose to join the list of peer companies and support the 2025 PESA Queensland Symposium. \nAs an event sponsor\, your company would be: \n– recognised on program and posters; \n– acknowledged throughout the day; \n– have access to display booths and discounted attendance; \n– able to display company banners on the main stage or in the foyer\, as determined by the sponsorship level. \nAttached is a guide detailing the Event Sponsorships Packages available along with Display Booth information\, and we would be happy to discuss this or any other ideas you might have. We also encourage sponsors to provide their company logo to be displayed on the day which gives wonderful exposure to both the public and the symposium delegates. We hope you will become one of our sponsors and thus assist us to continue to promote our industry via this informative\, enjoyable networking occasion. \nSecuring an Event Sponsorship package or a Display Booth can be made by contacting the Symposium sub-committee\,  via the Queensland Treasurer qld-treasurer@pesa.com.au . \n  \nRegistration for the event will be via the PESA website\, with tickets opening Monday August 4th. We look forward to welcoming you in September! \n  \nKind Regards \nSue Slater \n2025 on behalf of the PESA Symposium sub-committee \n  \n\nThe 2025 PESA Symposium Sub-committee warmly thanks those who have already committed to sponsoring our flagship event.\nGold Sponsors \nPrice $3500 – 3 Available/Remaining \nBenefits  \n\nSignage within the Exhibitor Area (provided by sponsor)\nLogo on slides shown at beginning and end of the day and during breaks\nLogo under list of sponsors in the program\nOne free registration (valued up to $200) and options to purchase additional two registrations for $150 each\nAccess to one half price Exhibitor Booth (valued at $500 – confirm if wanted) OR two additional registrations- confirm choice\nOption to chair the keynote session\n\nSilver Session Sponsors \nPrice $2500 – 1 Available/Remaining \nBenefits  \n\nSignage within the Exhibitor Area (provided by sponsor) and within lecture theatre during relevant session\nLogo under sponsored session in the program\nMention at the start of the sponsored session\nOne free registration (valued up to $200) and options to purchase additional two registrations for $150 each\nOption to chair the session\n\nExhibitor Booths – Extended due to demand!\nPrice $1200 – 2 Available \nBenefits  \n\nAccess to one Exhibitor Booth – one table (1.8m x 0.9m)\, chairs and with confirmation of requirements backing display boards (can be vertical or horizontal\, 1860 mm x 1080mm – double sided).\nPower provided to each Exhibitor booth.\nScreens to be proved by exhibitor or arrange with BCEC (not included)\nRegistration included two (valued up to $400) and access to additional registrations for $150\nExhibitor Booth located in high traffic area where tea\, lunch and evening cocktails are served\n\nCoffee Cart Sponsorship – Sold Out!\nPrice $1200 \n\nHelp provide barista coffee cart at registration\, during morning sessions and morning tea break\nBanner provided by sponsor on display nearby\n\nCocktail Function Sponsor – Sold Out!\nPrice $1200 \n\nAssist towards cost of the cocktail party held after the symposium\, on site at BCEC.\nBanner provided by sponsor on display at cocktail event\n\n  \n\n\n\nStudent & Early Career Sponsorship \nAV Sponsorship – Sold Out!\nBespoke offerings\n\n\n$1\,000 – 1 Available/Remaining \nSupport PESA’s endeavours in providing heavily discounted or free student/early career attendance and offering student scholarships\n$1\,000  \nAssist in providing a good quality Audio-Visual experience for attendees of the Symposium\nWe are happy to discuss other options\, such as bulk discounts for multiple attendees\, sponsorship of breaks etc.\n\n\n\n  \nWe will have a professional photographer on site. By attending this event in any capacity\,  you agree to being photographed which may be used for marketing or promotional purposes. \n  \nPurchases can be made by invoice (Contact PESA Queensland Treasurer) \n\n\nKeep track of upcoming PESA QLD Events:\n\nClick here to view PESA QLD Events Calendar on the web \nClick here to subscribe to PESA QLD Events by adding it to your Google Calendar
URL:https://pesa.com.au/events/pesa-qld-2025-symposium-sponsorship-packages/
LOCATION:Brisbane Convention and Exhibition Centre\, Merivale St & Glenelg Street\, South Brisbane\, QLD\, 4101\, Australia
CATEGORIES:Industry,QLD,Social,Technical Talk
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ORGANIZER;CN="PESA QLD Branch":MAILTO:qld-treasurer@pesa.com.au
GEO:-27.4785063;153.018825
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BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20250901T081500
DTEND;TZID=Australia/Brisbane:20250901T180000
DTSTAMP:20260606T055735
CREATED:20250801T064000Z
LAST-MODIFIED:20250828T055905Z
UID:10008715-1756714500-1756749600@pesa.com.au
SUMMARY:PESA QLD 2025 Symposium - 1 September
DESCRIPTION:  \nThe annual PESA QLD Symposium is back in 2025\, and this year’s theme is Juggling the Energy Mix. \nThis year the Symposium will be held on Monday\, 1st September 2025 at the Brisbane Conference and Exhibition Centre (Plaza Level P1 & P2). \nThe PESA QLD Symposium is a full day event focused on bringing together members of the petroleum and energy exploration and production industry here in Queensland. Local and Interstate specialist speakers are invited to present a series of papers which address the industry activity within the state from a technical\, economic\, and social perspective.  \nThis year’s program will feature speakers from a range of companies\, consultancies\, and institutions including InGauge Energy Pty Ltd\, Rock-Teck Consulting\, Senex Energy Pty Ltd\, Comet Ridge Limited\, Novus Fuels\, QPM Energy Pty Ltd\, and more. \nThis year\, PESA is pleased to welcome the Honourable Dale Last (Minister for Natural Resources and Mines\, Minister for Manufacturing and Minister for Regional and Rural Development) to deliver our Opening Address\, and Mr Darren Moore (Acting Deputy Director General\, GeoResources) and Mr Rick Wilkinson (Chief Executive Officer\, EnergyQuest) as Keynote Address presenters. Full program details will be released soon. \nIndustry Exhibition\nOur exhibition gives the opportunity for local companies to introduce their technologies and interact with clients\, and potential clients\, face to face. Please click here for more information about securing your Exhibitor Booth. \nStudent Poster Session\nWe are also delighted to offer resource focused Queensland-based students the chance to present and discuss their research with industry representatives. Please contact qld-secretary@pesa.com.au if you are interested in presenting a student poster. \nSponsorship opportunities are still available for the 2025 PESA QLD Symposium. \nIf you or your company are interested in sponsoring this event\, please click here to view the sponsorship opportunities being offered. We thank those who have already committed to sponsoring our flagship event. \n\nBrisbane Convention and Exhibition Centre \n\n2025 Program \n \n\nThe 2025 PESA QLD Symposium is proudly sponsored by:\nGold Sponsors \nThis could be you! Sponsorship opportunity still available \n  \nSilver Sponsors \nThis could be you! A Silver Sponsorship opportunity is still available \n  \n  \nCocktail Function Sponsor \n  \nCoffee Cart Sponsor \n \n  \nExhibitors \n \nHurry! Book your exhibitor booth today! \n  \nOther Sponsors  \n \nAV Sponsor  \n \nStudent Sponsor \nThis could be you! Other Sponsorship opportunities still available \n\nTicket sales will close on Monday\, 1 September 8:00am \n\n\n\n\nEarly Bird Ticket Price\nStandard Ticket Price\n\n\n\n\nPESA Members – $250\nNon-Members – $300\nStudent / Retired Members – $125\nPESA Members – $275\nNon-Members – $350\nStudent / Retired Members – $125 \nBULK TICKET PURCHASES – $275 each\, minimum 2 tickets per purchase\n\n\n\nWe will have a professional photographer on site. By attending this event in any capacity\,  you agree to being photographed which may be used for marketing or promotional purposes.\nVenue\nBrisbane Convention & Exhibition Centre \nPlaza Level – P1 & P2 \nCnr Merivale and Glenelg Streets\nSouth Bank\, Brisbane\nQueensland Australia \nDate & Time \n8:15am – 6:00pm\, Monday 1st September\, 2025
URL:https://pesa.com.au/events/pesa-qld-2025-symposium-1-september/
LOCATION:Brisbane Convention and Exhibition Centre\, Merivale St & Glenelg Street\, South Brisbane\, QLD\, 4101\, Australia
CATEGORIES:Industry,QLD,Social,Technical Talk
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Perth:20250902T110000
DTEND;TZID=Australia/Perth:20250902T120000
DTSTAMP:20260606T055735
CREATED:20250822T085621Z
LAST-MODIFIED:20250916T021015Z
UID:10008723-1756810800-1756814400@pesa.com.au
SUMMARY:2025 PESA WEBINAR SERIES: 2024 Development and Production Review (Martin Wilkes)
DESCRIPTION:Kindly supported by Rock Flow dynamics  \n  \nThis live webinar will take place at: \n11am              – Perth\n12.30pm       – Darwin\, Adelaide\n1pm                – Brisbane\, Canberra\, Hobart\, Melbourne\, Sydney \nUse the calendar link on this page to add this event in to your own calendar at the correct local time for your location. \nTickets are free for members (please log in to see this) and $10 for non members. \nPlease buy your tickets and immediately follow the link in the ticket e-mail (not the calendar invite or this webpage\, which is just generic and not event specific) to set up your registration with the webinar software well in advance of the time of the talk. Once registered with the webinar software you will receive a reminder e-mail 1 hour beforehand. \n2024 Development and Production Review\nPresented by Martin Wilkes (RISC Managing Director) \nAbstract \n\nGeopolitical uncertainty continued in 2024 with continuation of the war in Ukraine\, Israeli actions in the Gaza strip\, tension between China and several neighbouring countries\, and the impending election in the United States of America. Despite this\, global inflationary pressures continued to fall during the year\, although they remained higher than pre-pandemic levels. In Australia\, activism around climate change issues continued to impact project developments and sentiment in the industry remained somewhat subdued. The PESA 2024 Development and Production Review looks back at the oil and gas development and production activities in Australia in 2024 and tries to provide some sense of what happened\, and what that means for the industry looking forward. Liquefied natural gas (LNG) production in Australia recorded (unexpectedly) a new record high\, although several projects are now facing declining production. Santos won a significant court case in January 2024 on the Barossa project\, enabling it to resume construction activity on the main export pipeline to Darwin\, which had been suspended for approximately 2 months. The east coast domestic market continued to have major concerns about gas supply and one of the three gas plants at Longford was shutdown reducing supply and processing capacity significantly. Gas supply remains a critical issue in the Northern Territory.
URL:https://pesa.com.au/events/2025-pesa-webinar-series-2024-development-and-production-review/
LOCATION:WA
CATEGORIES:Online
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BEGIN:VEVENT
DTSTART;TZID=Australia/Adelaide:20250904T173000
DTEND;TZID=Australia/Adelaide:20250904T203000
DTSTAMP:20260606T055735
CREATED:20250521T085511Z
LAST-MODIFIED:20250828T024247Z
UID:10008687-1757007000-1757017800@pesa.com.au
SUMMARY:Field Geology Club: Ralph Tate Memorial Lecture - Rings around the earth?
DESCRIPTION:We invite you to the Field Geology Club-Hosted Event \n \n  \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: 4th September 2025
URL:https://pesa.com.au/events/field-geology-club-ralph-tate-memorial-lecture-rings-around-the-earth/
LOCATION:WA
CATEGORIES:SA / NT,Technical Talk
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20250909T120000
DTEND;TZID=Australia/Sydney:20250909T143000
DTSTAMP:20260606T055735
CREATED:20250825T000508Z
LAST-MODIFIED:20250825T000508Z
UID:10008726-1757419200-1757428200@pesa.com.au
SUMMARY:PESA ACT/NSW September Technical Talk
DESCRIPTION:Hot Rocks and Hydrogen : the Devil’s Brew\nNE Tasmania has a thin crust and shallow Curie Point Depth\, and is a geologically distinct terrane to the rest of Tasmania. High heat flow values and slow mid-upper crust Vp values support regional and detailed magnetotelluric surveys which indicate shallow electrical conductivity anomalies similar to those observed beneath geothermal fields in NZ and elsewhere worldwide. Devil Resources has modelled existing data to define a hot zone at economically exploitable depth. Other potential zones are identified nearby. Devil is also investigating the potential for natural hydrogen west of the Tamar\, where a set of ultramafic thrusts are identified. The Devil licences are centred on Bell Bay\, where a deep water port and manufacturing zone provide a good basis for viable development. Electricity demand in Tasmania is strong and expanding.
URL:https://pesa.com.au/events/pesa-act-nsw-september-technical-talk-2025/
LOCATION:Castlereagh Boutique Hotel\, 169 Castlereagh St\, Sydney\, NSW\, 2000\, Australia
CATEGORIES:NSW / ACT,Technical Lunch,Technical Talk
ORGANIZER;CN="PESA NSW Secretary":MAILTO:nsw-secretary@pesa.com.au
GEO:-33.872562;151.2089734
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Perth:20250911T170000
DTEND;TZID=Australia/Perth:20250911T200000
DTSTAMP:20260606T055735
CREATED:20250722T074620Z
LAST-MODIFIED:20250829T012622Z
UID:10008711-1757610000-1757620800@pesa.com.au
SUMMARY:PESA-AIG-SPE-ASEG YP Networking Evening 11th September2025
DESCRIPTION:Please join the Perth Young Professional Geoscientists and Engineers from the petroleum and mining industries for a light-hearted night of in-person networking and great conversation\nEvent Details: \nDate: Thursday\, 11th September 2025 5:00-8:00pm.\nVenue: The Shoe Bar\, Yagan Square \nTicket Prices: Free: Please register below for catering purposes by Wednesday 10th 5pm \nThis event is exclusively for Young Professionals and early career professionals (people who have been working in the Oil and Gas or mining industry for less than 10 years). Please come along if you’re a student\, graduate or working professional. Meeting your industry peers is a good chance to talk about your different backgrounds\, experiences\, projects and companies with like-minded people in a very laid back and friendly setting.
URL:https://pesa.com.au/events/pesa-spe-aseg-yp-networking-evening-11th-sep-2025/
LOCATION:The Shoe\, Shop GSO7 Yagan Square\, 376 - 420 Wellington St\, Perth\, WA\, 6000\, Australia
CATEGORIES:Evening Event,Industry,WA,YPP
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Australia/Brisbane:20250924T180000
DTEND;TZID=Australia/Brisbane:20250924T193000
DTSTAMP:20260606T055735
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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BEGIN:VEVENT
DTSTART;TZID=Australia/Adelaide:20250928T080000
DTEND;TZID=Australia/Adelaide:20250929T170000
DTSTAMP:20260606T055735
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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DTSTART;TZID=Australia/Adelaide:20250929T173000
DTEND;TZID=Australia/Adelaide:20250929T193000
DTSTAMP:20260606T055735
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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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DTSTART;TZID=Australia/Perth:20250930T110000
DTEND;TZID=Australia/Perth:20250930T120000
DTSTAMP:20260606T055735
CREATED:20250915T053707Z
LAST-MODIFIED:20250930T062404Z
UID:10008734-1759230000-1759233600@pesa.com.au
SUMMARY:2025 PESA WEBINAR SERIES: Burial Diagenesis and the Case of the Giant Perla Field in the Gulf of Venezuela Basin (Fernando Valencia Fermin)
DESCRIPTION:Kindly supported by Rock Flow dynamics  \n  \nThis live webinar will take place at: \n11am              – Perth\n12.30pm       – Darwin\, Adelaide\n1pm                – Brisbane\, Canberra\, Hobart\, Melbourne\, Sydney \nUse the calendar link on this page to add this event in to your own calendar at the correct local time for your location. \nTickets are free for members (please log in to see this) and $10 for non members. \nPlease buy your tickets and immediately follow the link in the ticket e-mail (not the calendar invite or this webpage\, which is just generic and not event specific) to set up your registration with the webinar software well in advance of the time of the talk. Once registered with the webinar software you will receive a reminder e-mail 1 hour beforehand. \nBurial diagenesis and the case of the giant Perla field in the Gulf of Venezuela Basin\nPresented by Dr Fernando Valencia Fermin  \nAbstract \n\nDiagenesis comprise all the physical\, chemical\, and biological modifications underwent by a sediment\, after its initial deposition\, during and after lithification but before reaching pressures and temperatures proper of metamorphism. Burial diagenesis\, in particular\, refers to the diagenetic modifications occurred due to the influence of burial processes in the mesogenetic environment. The study of diagenesis is important in both siliciclastic and carbonate reservoirs; however\, they are key in the latter since they are more chemically reactive. The Perla Limestone\, an Oligo-Miocene carbonate reservoir located in the Gulf of Venezuela Basin\, considered the largest gas field in Latin America (>17 Tscf of gas in place)\, shows a complex porosity system marked by a strong diagenetic control. Despite comprehensive depositional facies modelling carried out in this reservoir\, inconsistencies remained when distributing petrophysical properties with depositional facies. Specifically\, in areas strongly affected by diagenetic processes since they constitute a complex variable to reproduce in a predictive reservoir quality-model. In order to understand the impact of diagenesis in the Perla Limestone\, and its distribution along the carbonate succession; a detailed petrographic\, mineralogical and chemical analysis on well-cores was performed. As a result\, several diagenetic processes that created and destroyed porosity and permeability were identified and grouped chronologically in function of the evolution of the diagenetic environment. Within these processes\, an important burial dissolution process\, likely linked to the ascent of CO2-rich fluids mediated by basement-root faults\, fractures\, and stylolites allowed the development of pervasive secondary porosity in the vicinity of the major discontinuity surfaces. On the other hand\, blocky-calcite cementation in the near surface to shallow burial environment\, and the progressive mechanical compaction in the burial realm\, were the main responsible for reservoir quality destruction.
URL:https://pesa.com.au/events/2025-pesa-webinar-series-burial-diagenesis-and-the-case-of-the-giant-perla-field-in-the-gulf-of-venezuela-basin-fernando-valencia-fermin/
LOCATION:WA
CATEGORIES:Online
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