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WA

WA tech talk: Geophysics for a Sustainable Future

Thursday, June 1, 2023
1730
1900

Title: Geophysics for a Sustainable Future
Date & Time: 1 June 2023, 5:30 pm
Speaker: Michelle Thomas
Registration: https://www.eventbrite.com.au/e/aseg-wa-special-tech-night-michelle-thomas-tickets-633138493277

Venue:

The Shoe Bar and Cafe
376 – 420 Wellington Street
Perth, WA 6050

Abstract:

In her talk this June at ASEG WA technical night, Michelle will discuss minerals geophysicists’ role in achieving the United Nations General Assembly’s 17 Sustainable Development Goals (SDGs), focused on the dimensions of People, Prosperity, and the Planet. This discussion will build upon the Geophysical Sustainability Atlas published in the Leading Edge by Capello et al., 2021, and the UNESCO Geoscience in Action report it subsequently inspired. 

Biography: 

Michelle Thomas is the global practice lead of geophysics at BHP, responsible for geophysics technical excellence and capability at BHP. Her focus is on connecting the physical properties of the Earth to critical business decisions across BHPs global value chain today and into the future.

Michelle joined the mining sector early in 2021 following a 22-year career in the petroleum industry, including senior technical and leadership roles in innovation, exploration, and geophysics.

Michelle holds a BA(Hons) in Earth Sciences from the University of Cambridge, UK, and an MSc in Petroleum Geology from the Institut Francais du Petrole (IFP) in France.
 

ASEG WA tech night: Surface and borehole seismic monitoring of CO2 geological storage

Thursday, April 27, 2023
1730
1900

Title: Surface and borehole seismic monitoring of CO2 geological storage

Speaker: Professor Roman Pevzner

Date and time: 27 April 2023, 5:30pm

Location: The Shoe Bar and Cafe 376 - 420 Wellington Street Perth, WA 6050

Registration: https://www.eventbrite.com.au/e/aseg-wa-special-tech-night-prof-roman-pevzner-tickets-599937548357

Abstract:

Geological carbon capture and storage (CCS) or sequestration is a critical component of CO2 emission reduction, which aims to alleviate global climate change. Geological carbon storage always requires a subsurface monitoring program to address two main goals: (1) surveillance at the reservoir level to verify compliance of the growing CO2 plume with the original plan and (2) early detection of adverse effects, such as leakage of the injected fluid from the containment zone or significant induced seismicity associated with the injection.

Seismic methods play an important role in achieving both goals. Change in CO2 saturation in the pore space inside of the storage reservoir or in the overburden results in the change of elastic properties detectable through changes in seismic reflectivity or travel times. Induced seismicity generates a direct signal usually associated with the propagation of the pressure front.

The range of seismic methods — which can be deployed — includes surface and borehole active time-lapse seismic surveys with re-deployable or permanently mounted source and receiver arrays and passive monitoring, e.g. using any components of the wave field that originated from the seismic sources beyond our control. Many CO2 geosequestration sites are located near large sources of CO2 emission, such as populated areas with existing infrastructure. As such, the monitoring strategy must accommodate sharing the land (or ocean) with other users and have a minimal environmental impact. Furthermore, geosequestration is a form of waste disposal that must be cost-efficient. All these factors make CCS a leader in innovation, being an early adopter of such disruptive technologies as distributed fibre optic sensing and permanent reservoir monitoring. Small-scale demonstration projects focusing on the testing and development of CCS technologies play a critical role in this innovation.

This lecture is based on Australian CCS projects, such as the CO2CRC Otway Project and CSIRO In-situ Lab Project, which showcase the evolution of the seismic monitoring technology from conventional land 4D seismic to continuous or on-demand monitoring using permanent downhole and near-surface geophone and distributed acoustic sensing (DAS) arrays. We discuss how monitoring objectives can be achieved using various acquisition geometries, including land 4D, 4D vertical seismic profiling (VSP), and offset VSP, all of which can be implemented using conventional and permanently mounted seismic sources. Also covered is the automation of data acquisition and analysis, as well as passive data analysis.

Drinks and nibbles will be available from 5:30pm - 6:15pm. The talk will commence promptly at 6:15pm. ASEG would like to thank our sponsors for their continued support.

Bio:

Professor Roman Pevzner joined Curtin University (Perth, Western Australia) in 2008 as an associate professor in the Discipline of Exploration Geophysics, progressing to professor in 2018. Previously he headed the software development department at DECO Geophysical service company from 2002–2008. At the same time, Roman has also conducted research and teaching at the Geological Faculty of Lomonosov Moscow State University, Seismometry and Geo-acoustics Department. Roman Pevzner received his PhD in Geophysics (2004), Masters of Science in Geophysics (2001), and Bachelor of Science in Geology (1999) from Lomonosov Moscow State University.

His main areas of interest include subsurface monitoring using active and passive seismic methods, borehole seismic, distributed fibre optic sensing for geophysical applications, and CO2 geosequestration. Roman has co-authored 75 journal papers and more than 170 refereed conference publications.

ASEG WA Tech Night: REBIRTH OF A MATURE OIL FIELD IN EASTERN CARPATHIANS, CENTRAL-EASTERN EUROPE: A SYNERGETIC APPROACH.

Wednesday, March 22, 2023
1730
1900

Title: REBIRTH OF A MATURE OIL FIELD IN EASTERN CARPATHIANS, CENTRAL-EASTERN EUROPE: A SYNERGETIC APPROACH.

Speaker: Prof Victor Mocanu,

Registration:  ASEG WA Special Tech Night - Prof Victor Victor Mocanu Tickets, Wed, Mar 22, 2023 at 5:30 PM | Eventbrite

Location: The Shoe Bar and Cafe 376 - 420 Wellington Street Perth, WA 6050

Date and time: Wed, Mar 22, 2023, 5:30 PM AWST

Details:

We demonstrate the effectiveness of using complementary geophysical and geological methods to better understand the structure and petroleum potential in a mature, late life producing oil field in the internal part of the Romanian Eastern Carpathians, in the so-named Tisza-Dacia block, an area in Central-Eastern Europe.

161 years ago exploration work indicated positive results and several wells were drilled. Crude oil extraction started as early as 1899 and continues until present, with several interruptions. Without serious advanced exploration activities and mainly based on interpretation of poor well cores, the extraction was a temptation despite the not-so-significant production.

Several wells reported basement at shallow depth between two major crustal faults and so the hydrocarbon prospective was considered as limited.

Some 15 y ago the new 2D seismic was of modest quality, so resistivity, gravity and magnetics plus MT data were added over geochemical sampling and geological re-mapping. This is an example of how a historic production could be boosted by integration of geophysical with non-geophysical methods so that the resulting geological model is modernly calibrated. The seismic data reprocessing by better velocity picking, statics and migration was based on a mixture of geodata. But the real original approach is represented by carefully looking into complex methodology with positive results in a mature field of over 100 y of production history.

 

Drink tokens and nibbles will be available from 5:30pm - 6pm. Technical presentation will start shortly after 6pm. ASEG would like to thank our sponsors for their continued support.

ASEG WA Tech Night: Geologically constrained level-set inversion with null-space analysis for evaluation: application in the Western Pyrenees.

Thursday, March 2, 2023
1730
1900

Title: Geologically constrained level-set inversion with null-space analysis for evaluation: application in the Western Pyrenees.

Presenter: Jeremie Giraud

Date: 02/03/2023

Time: 1730-1900

Location: The Shoe Bar and Cafe 376 - 420 Wellington Street Perth, WA 6050

Registration: https://www.eventbrite.com.au/e/aseg-wa-tech-night-jeremie-giraud-ticket...

 

Details:

We present and apply an algorithm integrating automated geological modelling into geometrical gravity inversion. The method we employ is based on a generalized, iterative level-set inversion scheme where geological units are deformed automatically to fit geophysical data. The proposed approach is formulated to account for geological data and principles during geophysical inversion. This is achieved by incorporating an automated geological modelling scheme in the regularization term of the geophysical inverse problem’s cost function. The geological modelling term provides model-dependent geological constraints and encourages geological realism during inversion. After summarizing the method that we employ, we present a field application where we refine a pre-existing 3D geological model which is locally inconsistent with geophysical data. The objective of this application case is to automatically resolve this inconsistency by improving geophysical data fit (i.e., the Bouguer anomaly) in selected areas while maintaining consistency with some geological observations (e.g., contact locations, orientation data) and principles (e.g., are relationships, structural rules). We consider a subduction zone generated during the Iberian and Eurasian intraplate collision with a partial uplift of the upper mantle located in the Western Pyrenees Mountain range across France and Spain. We focus on the structure of the upper crust and investigate the presence of abnormally dense material. We also use our algorithm to explore alternative geological scenarios and assess their consistency with geophysical data using the concept of 'null-space shuttle' to derive geophysically equivalent models.

AuScope Special Seminar with ChEESE Program Leader Prof Arnau Folch

Monday, February 6, 2023
1200 AEDT
1330 AEDT

HPC is increasingly being used in solid Earth Geophysics in Europe and AuScope has organised this Special Seminar with Arnau Folch, leader of the EU ChEESE Program

ChEESE is the EU Centre of Excellence for Exascale in Solid Earth and develops translational research capabilities in High Performance Computing to the Exascale in geophysics, enabling multiscale, multiphysics and multi-hazard analysis.

In this seminar, Arnau will present the results of ChEESE-1P Exascale Pilot Demonstrators, including:

·  Rapid probabilistic forecasts of tsunami inundations; 

·  Earthquake source prediction; and

·  The atmospheric volcanic ash dispersal models validated in real time against high-resolution geostationary satellite data.

And, introduce ChEESE-2P and highlight its role in an ecosystem of projects that are shaping Europe’s Digital Future, including:

·  A Digital Twin for GEOphysical Extremes (DT-GEO);

·  Destination Earth (DestinE); and 

·  European Plate Observing System (EPOS)

Date: February 6th from 12 pm to 1:30 pm AEST.

Please register here via Eventbrite.

 

Background

The first phase (ChEESE-1P) ran from 2018-2022 and addressed scientific and technical computational challenges in moving existing systems to Exascale in seismology, tsunami science, volcanology, and magnetohydrodynamics. ChEESE-1P initiated the optimisation of 10 Community flagship European codes for the European pre-Exascale and Exascale supercomputers and developed 12 Pilot Demonstrators (PD) that enabled services oriented to critical aspects of geohazards, including hazard assessment, urgent computing, and early warning forecasting.

Following the success of ChEESE-1P, a second 4-year phase (ChEESE-2P) with funding of € 7.8 million was launched in January 2023. Arnau will lead a team of Earth and Computer Scientists across multiple programs that will further develop the ChEESE-1P codes and new codes in geodynamics and glaciology.

We are delighted to be hosting Arnau and welcome you to join us in what will surely be a great seminar.

ASEG WA - Students Awards/Networking 2023

Thursday, February 2, 2023
1730
1900

ASEG WA - Students Awards/Networking

The WA Branch of the Australian Society of Exploration Geophysicists invites you to the students awards and networking event.
This will be an opportunity to network with experts in the field as well as members of the society.

The event is free to all ASEG members. Food and drinks tokens will be provided. If you have any queries, don't hesitate to email our secretary at wasecretary@aseg.org.au.

Location: Mayfair Lane
Address: 72 Outram Street, West Perth, WA
Date:     Feb 2, 2023
When:   5:30 PM
Registration:     Here

We look forward to seeing you there.

WA: Industry Mentoring Program Sundowner

Tuesday, November 29, 2022
1730
1930

Industry Mentoring Program Sundowner

 

When: Tuesday, 29th November 2022 5:30-7:30pm

Location: The Globe, 495/497 Wellington St, Perth

Cost: $10 for members of any of the participating associations

Ticket sales close Monday 28th November 5pm

Registration: https://pesa.com.au/events/industry-mentoring-program-sundowner/

The joint Industry Mentoring Program is a collaboration between nine professional associations: Petroleum Exploration Society of Australia (PESA), Australian Society for Exploration Geophysicists (ASEG), Energy Club of WA (ECWA), Society of Petroleum Engineers (SPE), Engineers Australia (EA), Society for Underwater Technology (SUT) and Subsea Energy Australia (SEA), and Professional Petroleum Data Management Association (PPDM).

We’re inviting the members of the participating associations to join us for the mentoring program wrap-up. This will be an opportunity to network with mentors, mentees, and members of the participating clubs and associations. There will be networking activities, nibbles and drinks to encourage meaningful networking and connections in a friendly environment.

WA Branch - Christmas Party

Wednesday, December 7, 2022
1700
2200

ASEG Christmas Party

The WA Branch of the Australian Society of Exploration Geophysicists would like to invite you to attend the ASEG Christmas Party at Leederville Sporting Club for an evening of lawn bowls and fun.

Food will be provided and drink coupons available on arrival. This is a great opportunity to catch up with friends and relax after a very busy year!

 

Date: Wednesday, 7 December 2022

Venue: Leederville Sporting Club

Address: 78 Cambridge Street, West Leederville

Time: 5pm (start) to 10pm

Registration: coming soon

Please Register and RSVP by Monday 5 December for catering purposes.

 

There is limited free parking on site and nearby paid parking. Buses and train station all within vicinity.

PESA-SPE-ASEG YP Networking Evening

Friday, November 11, 2022
1700
2000

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

 

Event Details:

Date: Friday, 11th November 2022 5:00-8:00pm.
Venue: The Shoe Bar, Yagan Square

There will be a Panel of 3 industry professionals to talk about their careers and answer some of your questions.

 

Ticket Prices:

Free: Please register here for catering purposes by Thursday 10th 5pm

 

This event is exclusively for Young Professionals (Young Professionals under the age of 35) and early career professionals (people who have been working in the Oil and Gas or mining industry for less than 5 years), so come along if you’re a student, graduate or working professional. Meeting your industry peers is a good chance to talk about your different background, experiences, projects and companies with like-minded people in a very laid back and friendly setting.

ASEG WA Branch: 2022 AGM

Wednesday, November 30, 2022
1730
1830

2022 AGM

30th Nov, Shoe Bar, 5:30pm

More details to follow

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