A reproducible framework for 3D acoustic forward modelling of hard rock geological models with Madagascar

Dr Andrew Squelch; Dr Mahyar Madadi; A/Prof Milovan Urosevic

doi:10.1071/ASEG2013ab106

ISSN: 2202-0586
E-ISSN:

oa A reproducible framework for 3D acoustic forward modelling of hard rock geological models with Madagascar
Authors Dr Andrew Squelch^a, Dr Mahyar Madadi^b and A/Prof Milovan Urosevic^c
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^a Deep Exploration Technologies CRC Department of Exploration GeophysicsCurtin University, GPO Box U1987, Perth, , WA, 6845, [email protected] ^b Deep Exploration Technologies CRC Department of Exploration GeophysicsCurtin University, GPO Box U1987, Perth, , WA, 6845, [email protected] ^c Deep Exploration Technologies CRC Department of Exploration GeophysicsCurtin University, GPO Box U1987, Perth, , WA, 6845, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2013, Issue ASEG2013 - 23rd Geophysical Conference, Dec 2013, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2013ab106
- Published online: 01 Dec 2013

Abstract

A special challenge of hard rock exploration is to identify targets of interest within complex geological settings. Interpretation of the geology can be made from direct geological observations and knowledge of the area, and from 2D or 3D seismic surveys. These interpretations can be developed into 3D geological models that provide the basis for predictions as to likely targets for drilling and/or mining. To verify these predictions we need to simulate 3D seismic wave propagation in the proposed geological models and compare the simulation results to seismic survey data. To achieve this we convert geological surfaces created in an interpretation software package into discretised block models representing the different lithostratigraphic units, and segment these into discrete volumes to which appropriate density and seismic velocity values are assigned. This approach allows us to scale models appropriately for desired wave propagation parameters and to go from local to global geological models and vice versa. Then we use these digital models with forward modelling codes to undertake numerous 3D acoustic wave simulations. Simulations are performed with single shot and with exploding reflector (located on extracted geological surface) configurations.

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2026-01-14

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References

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/content/journals/10.1071/ASEG2013ab106

Article Type: Research Article

Keyword(s): 3D acoustic forward modelling; 3D geological model; 3D velocity model

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oa A reproducible framework for 3D acoustic forward modelling of hard rock geological models with Madagascar

Abstract

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