Post on 24-Jun-2015
description
Government of Western AustraliaDepartment of Mines and Petroleum
Geological Survey ofWestern Australia
3D Geoscience at GSWAKlaus Gessner
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
GSWA 3D Geoscience: Who?
Klaus Gessner - GSWA
Ruth Murdie – GSWA
Lucy Brisbout – GSWA
Huaiyu Yuan – Macquarie / CET
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
GSWA 3D Geoscience: What?
Aim • increase the knowledge of Western Australia’s subsurface
through the integration of geophysical, geological and geochemical data in 3D structural models.
Objectives• developing the capability to build, manage, analyse and
store 3D models according to GSWA quality standards and stakeholder needs
• engaging in collaborative research with leading research institutions that complement GSWA’s data collection, analysis and modelling capabilities.
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
• Need for integration of surface and depth data: Effective communication to stakeholders
• ‘The end of the cartoon era’ – increased level of rigor by geometrical constraint (interpreted map, cross section, forward model, 3D model, …)
• Reduced uncertainty and risk• It’s fun (sometimes)
GSWA 3D Geoscience: Why?
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Integration: Focus on Yilgarn and its margins
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
• Collecting / archiving / updating existing models / objects– Integration of existing data– Level of integration (data vs. models: impact on how we handle
our data)– Corporate style (polygons vs volumes, scale increments, …)
• Products to stakeholders– Data vs. models; 2D vs 3D– GA approach (World Wind based viewer?)
• Technical framework– Should be similar between across State surveys, and GA– Longevity
Challenges
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Modelling challenge: Explicit / Implicit
Updateable vs ‘3D sewing’
Henson 2006
Wellmann 2012
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Data Management Challenge
• Variety of input data– Data types / formats– Coordinate systems– Accuracy across scales (‘mantle to vein’)
• Archive and store– ‘z-issue’– Permission management
• Variety of output data– Visualisation / Interface (e.g. GA viewer based on NASA
software)– Data export
• ‘Victorian’solution nvcollaborative project?– Turnkey system ($$$)
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Production challenge
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
GSWA 3D Geoscience: How
Priorities
• Field campaigns: passive seismic arrays• Focus on regional scale 3D Models (internal/external)
– Delivery as digital packages (annually updated)
• Cooperation– CET’s Integrated Exploration Platform– Numerical simulation: Geodynamics (CET) of AFO, Musgraves– Imaging / property modelling
• Gigapixel mosaics• Physical properties / CT scans
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Large Scale …
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Large Scale: CCFS and ANU Collaboration ( via ARC CCFS and Linkage funding)
Passive Array Studies along Yilgarn margins: Capricorn and Albany-Fraser Orogen
Huaiyu YuanCCFS
(CET / Macquarie)
Christian SipplANU RSES
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Slightly less large scale …
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Mesoscale
Outcrop scale:
Gigapixel images
Ivan Zibra
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Microscale
Physical property models based on x-ray tomography; acoustic property measurements (collaboration with Australian Synchrotron, Argonne, UWA, CSIRO)
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Regional Structural Model Package
GSWA• Sandstone GB• Yilgarn Fault Network• Windimurra • AFO …• Capricorn …
External (at own risk)• SX (Nico Thebaud)• Eastern Goldfields (GA)• Musgraves (Alan Aitken, GA)• Kimberley• Tanami• +/- Assorted basin models (WAGCOE, UWA CPR)
Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum
Perth: The ‘Munich’ of 3D Geomodelling … ?
Critical mass in Perth - producing 3D models of WA Geology!
Your picture here …