Industry

Using Airborne Gravimetry Data To Improve The Australian Model Of Zero Heights

Presenter name & affiliations / institution: Dr Jack McCubbine, Geoscience Australia.

Abstract: In 2017, a new Australian quasigeoid model (AGQG2017) was released, with an accompanying map of uncertainty values. The model was determined from the national terrestrial gravity database and satellite altimetry derived gravity anomalies. The coverage and reliability of these data limit the accuracy of the quasigeoid model to 5 - 8 cm. However, users of the model require a reference surface which is accurate to 4 cm, or better. Geoscience Australia has partnered with, The South Australian Department of Planning, Transport and Infrastructure, The Surveyor-General Victoria within the Department of Land Water and Planning and The Geological Survey of Victoria within the Department of Jobs, Precincts and Regions to capture airborne gravity data over Greater Adelaide, Greater Melbourne and Eastern Victoria Highlands, to improve the quasigeoid model and to advance geophysical modelling.

Bio: In 2016, Jack was awarded a PhD in Geophysics from Victoria University of Wellington for his work on the collection of a national wide airborne gravity dataset, producing a new series of national gravity grids, and a new quasigeoid model for New Zealand. Following this, he came to work at Curtin University, as a post doc, working on the development of a new Australian quasigeoid model with uncertainty estimates. Jack later moved to work at GA in the National Geodesy section, to assist with the geodetic absolute gravity program and to continue to refine the national quasigeoid model.

More information can be found here: https://www.land.vic.gov.au/surveying/geodesy/airborne-gravity-survey

To register, use the following link: https://us02web.zoom.us/webinar/register/WN_gyOaiZS-RwWMQh2DJBD2aQ

Helping explorers find the nuggets in precompetitive

Join us for David Upton from Precompetitive Review speaking on March 16, 2021 at 12:00 PM (AEDT).

Abstract: Australian precompetitive data and research is having a big impact on mineral discovery in Australia, but it could be doing so much more. We can’t blame this on governments —funding support at federal and state levels is strong. And we can’t blame it in our public geoscientists and academics, who keep on delivering innovative, clever and industry-relevant work. The biggest barrier is a failure by more explorers to seize the opportunities in precompetitive data and research. They can’t be blamed for that either because keeping on top of precompetitive data and research is not easy. Precompetitive Review was launched last year to help the public sector share its work and translate precompetitive data and research into ideas industry can act upon.

Biography: David completed a BSc in Geology at Flinders University in 1985, but chose to write about resources rather than look for them. After several years as a business journalist, including a stint at the SMH/Age in Sydney, he veered off into the murky world of public relations, working for banks, accounting firms and management consultants. David came to his senses in 2007 when he started writing again about mineral exploration. A self-published book released in 2010, The Olympic Dam Story, sparked a fascination with big exploration concepts and the unappreciated value of precompetitive data and research. A decade later, David began publishing Precompetitive Review.

To register, please click here.

EAGE is proud to announce that the4th Asia Pacific Meeting on Near Surface Geoscience& Engineering is scheduled to take place in Ho Chi Minh City from 30 November –2 December 2021.

This meeting aims to strengthen the ties between geoscientists and engineers, academia and industry, the young and experienced in the near surface geoscience domain. Areas that the conference typically covers are geotechnical investigations (infrastructure), geohazards and disaster mitigation, hydrogeophysics & hydrogeology, climate, contamination survey, etc. The conference programme will focuson issues relevant to Vietnamand the Asia Pacificregion and attended by industry professionalsglobally.

The Society of Exploration Geophysicists of Japan (SEGJ) is planning its fourteenth International Symposium on 18-21 October, 2021 online.  The theme of the symposium is "Road ahead for geophysics in digital society: Acquisition, processing, and interpretation".

Inaugurated in 1990, the SEGJ International Symposium has been held every two to three years, and has established as one of the most popular and exciting conferences in applied geophysics in the eastern hemisphere.

Further details may be found on the Symposium's home page.

We have a new webinar on Wednesday 23 March, 4pm AEDT NT is bringing you a talk by Teagan Blaikie and Helen McFarlane of CSIRO on Interpreting high-resolution aeromagnetic data to aid mapping undercover and structural analysis of the Tanami Region and northwest Aileron Province.

Register now: https://us02web.zoom.us/webinar/register/WN_Q4dRbOExQEuiV8tHkm9CKA

Clive Foss and Jim Austin at CSIRO Mineral Resources on From Tenterfield to Mars: Magnetic Modelling with Terrain.

  Register now: https://us02web.zoom.us/webinar/register/WN_m8LruZUdRji2OG23PSPCIA

ASEG WA February 2021- Student Tech Night

Venue: The Shoe Bar
Tuesday 23  February 2021
5:30 pm start, 6-7 pm presentation
The Shoe Bar
Shop GSO7 Yagan Square
376 - 420 Wellington St
Perth CBD

The WA Branch of the Australian Society of Exploration Geophysicists is excited to invite you to our first face-to-face live ASEG WA Tech Night in 2021. We are trying out a new venue in CBD at Yagan Square, but still with the usual snacks and drinks provided. Note that there is plenty of public transportation, and, if need-be, paid parking is available at nearby Wilson Parking - 427 Murray St - Google Maps. - Also, for those of you who missed 2021's AGM bash and its handouts, your 50th Anniversary baseball caps will be available to take back home with you. And, once again, we'd like to thank our sponsors for their continued support for 2021 and the future.

For this meeting, we are hosting our upcoming Student Tech Night presented by local WA Honours, Masters or PhD Students from UWA and Curtin.
       Four students will give short presentations on their recent work in the field of geophysics at this annual student night. Attendees will be asked to vote on the best presentation, and one student will be awarded a prize courtesy of the WA branch.

Speakers:

1) Partha Pratim Mandal
Title: Geomechanical characterization of unconventional gas shale - Example from Goldwyer shale formation
 
Bio: Partha Pratim Mandal is a PhD student at Western Australia School of Mines, Curtin University and currently works on geomechanical characterization of unconventional gas shale in the onshore Canning Basin. His research work focuses on in experimental design and assessment of geomechanical properties under in-situ condition, viscoelastic creep response, ultrasonic recording, computation of elastic anisotropy, geomechanical modelling (1D and 3D) and hydraulic fracturing of unconventional gas shale. He is recipient of several student awards from PESA, AAPG and AIG.
 
2) John Shepherd
Title: Quantitative 3D seismic stratigraphy of the Bight Basin, southern Australian margin: Preliminary findings
 
Bio: John Shepherd is currently undertaking a petroleum-based PhD in quantitative seismic stratigraphy at the Centre for Energy Geoscience, UWA. His research focusses on investigating shelf-margin architecture and deep-water sand delivery in the Bight Basin. He is employed part-time as a geology tutor and swims competitively.
 
3) Sofya Popik
Title: P-Wave Anisotropy Estimation from 3D VSP Data Acquired with Geophones and DAS at Otway Site.
 
Bio: Sofya Popik is a PhD candidate in Exploration Geophysics at Curtin University, Australia. She completed her BSc and MSc degrees in Geophysics at Lomonosov Moscow State University, Russia. Sofya's PhD is in seismic monitoring. It focuses on integration of borehole and surface seismic monitoring techniques in CO2 geosequestration projects. This research project proposes to optimize acquisition of the monitor surveys using collaborative analysis of borehole seismic and surface seismic data. 
 
 4) Muhammad Atif Iqbal
Title: Petrophysical rock typing integrated with mechanical stratigraphy to identify producible and brittle layers in gas shale plays.
 
Bio: Mr. Muhammad Atif Iqbal is currently a PhD candidate in Western Australia School of Mines (WASM), Curtin University. His PhD research is focused on heterogeneity understanding through high-resolution multiscale (analytical and machine learning-based) rock typing to identify producible and brittle layers in gas shale plays. He has more than six years of industry and research experience as a Geoscientist with petroleum and mineral exploration companies. His expertise lies in core logging, formation evaluation, petrophysics and reservoir characterisation

Please rsvp in the link here to get a spot as seats are limited. We are looking forward to see you there.

We have another exciting year of ASEG webinars kicking off next week with a new webinar on Thursday 28 January, 1pm AEDT by Professor Eun-Jung Holden from the University of Western Australia on Geological Knowledge Discovery using Machine Augmented Intelligence.

Geological interpretation is a complex task where an interpreter’s bias plays an important role. As a result, interpretation outcomes are variable and uncertain, but nevertheless, these outcomes form the basis of decisions with significant environmental, social and financial implications. With the increasing use of artificial intelligence and machine learning in our daily lives such as for information search, online shopping, and virtual assistant AI, the geoscience domain has also been active in the uptake of machine learning and AI to assist in interpreting geology from data.

This talk presents innovative machine-assisted technologies that improve the efficiency and the robustness of geological interpretation of different types of geodata used in the resource industry. A number of applications of machine learning were developed in collaboration with the mining industry for the analysis and integration of multi-modal drill hole data. These applications integrate the algorithms and workflows to assist human decisions. The approach is to provide end users the control of the algorithmic process as much as possible; and to enable a seamless integration of algorithms in the interpreter’s workflow using interactive visualisation. This talk also presents an on-going AI research that extracts geological insights from documents using machine reading of text. It applies advanced text mining methods and constructs a graph based knowledge base called a knowledge graph to store and access geological information. Case studies on different mineral deposits demonstrate the effectiveness of the methods for rapidly and robustly transforming text data into structured information that faithfully represents the contents of the source reports.

Bio:

Professor Holden received her BSc, MSc and PhD in computer science from the University of Western Australia.  Her postgraduate and postdoctoral research focused on developing visualisation, automated image analysis and machine learning techniques for hand gesture recognition.  Then in 2006, she made a transition to geoscience and currently leads the Geodata Algorithms Team at UWA.  The team effectively spans the boundaries of computational science and geoscience and links academia and industry.  The team’s research resulted in the commercialisation of three software products, namely CET Grid Analysis and CET Porphyry Detection extensions for Oasis Monaj; and televiewer image analysis methods in the Image & Structure Interpretation workspace for ALT’s WellCAD.  These products had significant uptake by the resource industry globally.   Recently, their research also resulted in two industry driven patents on machine assisted drillhole data interpretation methods.  Professor Holden currently leads a major industry funded research engagement named the UWA-Rio Tinto Iron Ore Data Fusion Projects.  Her team won the UWA Vice Chancellor Award in Impact and Innovation in 2015 and she was a winner of the Women in Technology in WA (WiTWA) Tech [+] 20 Awards in 2019.

Register now: https://us02web.zoom.us/webinar/register/WN_f-K3VeVKTfiuHWiXBJf65g  

We are delighted to invite you to this upcoming ASEG SA/NT event.

The year has been a bit quiet in terms of face-to-face events- but we are grateful we can round the year off with a Christmas party and a chance to catch up with colleagues and friends. We will also have a technical talk by Matthew Zengerer, Gondwana Geoscience, ‘Application of Machine Learning to domaining of potential field data and subsurface geology predictions.'

Registration is required- please register through Eventbrite https://www.eventbrite.com.au/e/aseg-sant-christmas-party-and-technical-evening-tickets-132491031241

Tickets are limited- register now!

Details:

Date: Thursday 17^th December, 5:30 pm for 6 pm talk

Where: Union Hotel, 70 Waymouth St, Adelaide, 5000

Cost: ASEG members and students: free, non-members $10 cash at door, includes drinks and nibbles

Members in the NT- we are endeavouring to set up a zoom link for you to join us virtually – we will get this to you shortly!

We would like to take this opportunity to thank our sponsors for 2020, Beach, Oz Minerals, Vintage Energy, Terrex Seismic, Heathgate and Minotaur Exploration.

Presenter: Ain Nadrah Noor Sazali, Iraya Energies

Title: CASE STUDY :  Efficient exploration in the Bonaparte Basin Using Unstructured Data Analytics with ElasticDocs

Abstract:

Mining and Oil and Gas companies are awash with data from many different disciplines, the amount of data is growing exponentially and is estimated to double every 12 to 18 months. The diversity of the available data is such that it is impossible for any single user to efficiently access this information and knowledge. In recent years, these industries have been turning to finding new ways of tackling this challenge, using Big Data and Machine Learning technologies. In Iraya, we have developed ElasticDocs^TM,  an intuitive knowledge container, capable of automatically ingesting and structuring reports, images and presentation using machine learning.

We will present a case study covering the entire Bonaparte Basin for Play Based Exploration (here, for Oil and Gas potential).The technology will be used to address the five most common potential challenges during a geological study: (i) Discrepancies in formation tops, (ii) Limited understanding of lithology distribution, (iii) Limited mineral composition understanding, (iv) Fluid distribution, (v) Pressure/temperature patterns. We will demonstrate how such analysis can be conducted in ElasticDocs and how much time and resources are saved by the geoscientist mining these vast amounts of unstructured data such as reports (G&G, drilling, production), presentations (studies, analysis, summaries), images (cores, thin sections), spreadsheets and tables.

Bio:

Ain Nadrah Noor Sazali is a Digital Earth Scientist in Iraya Energies. With her diverse background of domain expertise (geology, petrophysics) and  also in Data Science, she designs and deploys innovative machine learning and artificial intelligence solutions for unstructured data using ElasticDocs to support the geoscientists and engineers decision making. She holds a MSc in Petroleum Geology, a BSc in Industrial andComputational Mathematics, and a Diploma in Science Physics.

Registration: https://us02web.zoom.us/webinar/register/WN_5ncAhPosQSiGWO-b-JP8Vw