Imaging of shallow coal structures using 2D6C Mini-SOSIE

Shaun Strong; James Alderman; Steve Hearn

doi:10.1071/ASEG2016ab286

25th International Conference and Exhibition – Interpreting the Past, Discovering the Future

ISSN: 2202-0586
E-ISSN:

oa Imaging of shallow coal structures using 2D6C Mini-SOSIE
Authors Shaun Strong^a, James Alderman^b and Steve Hearn^a
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^a Velseis Pty Ltd, Brisbane, , Australia ^b Rio Tinto Exploration, Brisbane, , Australia
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2016, Issue 25th International Conference and Exhibition – Interpreting the Past, Discovering the Future, Dec 2016, p. 1 - 5
DOI: https://doi.org/10.1071/ASEG2016ab286
- Published online: 01 Dec 2016

Abstract

At a trial field site in the Bowen Basin previous seismic surveys had difficulty imaging the coal seams near the base of weathering. It was suspected that these may be highly structured which could complicate future open-cut mining.

To improve the understanding of the geology a multicomponent 2D trial was conducted. This used the Mini-SOSIE technique to simultaneously generate P-wave and transverse S-wave energy. This allowed for the processing and interpretation of three separate datasets (P, S, and PS).

In this case, the PS image provided the best structural interpretation. This was achieved using information (e.g. statics and velocities) gained from processing the pure P and S datasets.

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References

Driml, K., M. Reveleigh, and K. Bartlett, 2001, Mini-SOSIE-Successful shallow 3D seismic data acquisition in an environmentally sensitive area: ASEG Extended Abstracts, 2001, 1-4.
Greenhalgh, S., M. Suprajitno, and D. King, 1986, Shallow seismic reflection investigations of coal in the Sydney Basin: Geophysics, 51, 1426-1437.
Hendrick, N., 2006, Converted-wave seismology for coal exploration: Recorder: Canadian Society of Exploration Geophysicists May, 27, 31.
King, D., 1979, Mini-SOSIE seismic profiling for coal in the Gloucester Basin of NSW: Exploration Geophysics, 10, 156-163. Layotte, P., 1983, Marthor: an S-wave impulse source: SEG Technical Program Expanded Abstracts 1983, 418-421. White, J., S. Heaps, and P. Lawrence, 1956, Seismic waves from a horizontal force: Geophysics, 21, 715-723.

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Article Type: Research Article

Keyword(s): Converted-wave; Mini-SOSIE; Multicomponent; S-wave

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oa Imaging of shallow coal structures using 2D6C Mini-SOSIE

Abstract

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