1887
2nd Australasian Exploration Geoscience Conference: Data to Discovery
  • ISSN: 2202-0586
  • E-ISSN:

Abstract

Summary

An in-hole electrode array was installed and cemented behind a fibreglass casing in a vertical monitoring well as part of an in-situ laboratory test for CO migration in a shallow fault zone in Harvey, Western Australia. The array consisted of 32 electrodes spaced at 3 m intervals, located between 277 m and 370 m below ground level. The intention of the experiments was to assess the value of permanent in-hole electrical resistivity systems, during a shallow-release of CO. The distance between the monitoring and injection wells was close to 7 m. Food grade CO gas was injected through a perforated interval located between 336 m and 342 m below ground level. In the order of 100,000 time-lapse dipole-dipole electrode quadrupole measurements were acquired during the experiment. There was a clear change in measurements at the depth of the injection interval during the release of CO gas. Results are being compared with seismic, pressure and temperature data from the monitoring and injections wells from periods before, during and after injection.

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/content/journals/10.1080/22020586.2019.12073174
2019-12-01
2026-01-23
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References

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/content/journals/10.1080/22020586.2019.12073174
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  • Article Type: Research Article
Keyword(s): CCS; CO2; ERI; shallow release
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