Monitoring Electrical Properties of Rocks in Target Zone of CO2-Sequestration Site

B. Sh. Singer; K. Dodds

doi:10.1071/ASEG2004ab134

ISSN: 2202-0586
E-ISSN:

oa Monitoring Electrical Properties of Rocks in Target Zone of CO2-Sequestration Site
Authors B. Sh. Singer^a and K. Dodds^b
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^a CO2CRC, CSIRO,, Australia, [email protected] ^b CO2CRC, CSIRO,, Australia, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2004, Issue ASEG2004 - 17th Geophysical Conference, Dec 2004, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2004ab134
- Published online: 01 Dec 2004

Abstract

We address evaluation of resistivity of a target zone of a C02-sequestration site using a simple measurement made from inside metal-cased boreholes. An approximate analytic expression is derived for the admittance measured between two metal casings in a stratified formation. It is shown that in a highly conductive environment measurement electrodes should be positioned inside the target depth range. Charts and plots are produced for evaluation of the admittance as function of the inter-casing separation and gas saturation in the target layer. The results indicate the possibility of monitoring the target zone using metal-cased borehole separated by distances of several hundreds meters..

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2004-12-01

2026-01-16

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References

Alpin, L.M., 1939. The method for logging in cased wells: USSR patent 56026.
Aulia, K., Poernomo, B., Richmod, W.C., Wicaksono, A. H., Beguin, P., Benimeli, D., Dubourg, I., Rouault, G., VanderWal, P., Boyd, A., Farag, S., Ferraris, P., McDougall, A., Rosa, M., and Sharbak, D., 2001. Resistivity behind casing, Oilfield review, Sclumberger, 13, N.I., 1-25.
Ennis-King, I, Gibson-Poole, C. M., Lang, S. C, and L. Paterson, L., 2002. Long-term numerical simulation of geological storage of C02 in the Petrel Sub-basin, North West Australia, Sixth International Conference on Greenhouse Gas Control Technologies, October 1-4, Kyoto, Japan, 2002.
Fanini, O. N, Hunziker, L, Maurer, H. M.; Tchakarov, B. J.; and Vail, W.B., 2001. Field Test Results of a Slim Through Casing Resistivity Array Instrument Prototype, SPE Paper 69470, Latin American and Caribbean Petroleum Engineering Conference held in Buenos Aires, Argentina, 25-28 March 2001.
Kaufmann, A. A., 1989. Conductivity determination in a formation having a cased well, U.S. Patent 4796186.
Singer, B. Sh. & Strack, K.-M., 1998. New aspects of through-casing resistivity theory, Geophysics, 63, 52-63.
Vail, W. B., 1991. Electronic measurement apparatus movable in a cased borehole and compensation for casing resistance differences, U.S. Patent 5075626.
Vail, W. B., Momii, S. T., and Woodhouse R., 1995. Through casing resistivity tool to locate bypassed oil, The American Oil & Gas Reporter, 31, N. 11, 70-75.

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Article Type: Research Article

Keyword(s): C02-sequestration; Electric monitoring; Metal-cased boreholes

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