Exploration Geophysics Exploration Geophysics Society
Journal of the Australian Society of Exploration Geophysicists
RESEARCH ARTICLE

Applications of property modelling from 2D seismic data to reservoir identification and sealing potential for petroleum exploration and CO2 sequestration

Hadi Nourollah
+ Author Affiliations
- Author Affiliations

3D-GEO Pty Ltd, Level 5, 114 Flinders Street, Melbourne, Vic. 3000, Australia. Email: hadi@3d-geo.com

Exploration Geophysics 42(4) 239-248 https://doi.org/10.1071/EG10025
Submitted: 27 September 2010  Accepted: 21 September 2011   Published: 8 November 2011

Abstract

This paper describes a process by which seismic related properties from 2D seismic lines are extracted and a 3D property model is constructed. This interpretation workflow is then tested and described on a pilot area in the northern portion of the onshore Gippsland Basin, Australia. The primary reservoir sands in this region appear to be deposited in a channel recognised on 2D seismic lines. Seismic inversion was performed on each 2D seismic line to differentiate between geological bodies, and these inverted seismic sections were fed into a 3D model in an attempt to track the sand filled channels and seals, based on the seismic-derived attributes. The sealing sequence is characterised by distinctive log/seismic properties, which were modelled in 3D, and attempts are made to discuss seal potential in terms of geometry and integrity.

Key words: Gippsland, property modelling, seal, sequestration.


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