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https://hdl.handle.net/2440/88147
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Type: | Conference paper |
Title: | Determining residual CO₂ saturation through a dissolution test – Results from the CO2CRC Otway Project |
Other Titles: | Determining residual CO(2) saturation through a dissolution test - Results from the CO2CRC Otway Project |
Author: | Haese, R. LaForce, T. Boreham, C. Ennis-King, J. Freifeld, B. Paterson, L. Schacht, U. |
Citation: | Energy Procedia, 2013 / Dixon, T., Yamaji, K. (ed./s), vol.37, pp.5379-5386 |
Publisher: | Elsevier BV |
Publisher Place: | Netherlands |
Issue Date: | 2013 |
Series/Report no.: | Energy Procedia |
ISSN: | 1876-6102 |
Conference Name: | International Conference on Greenhouse Gas Control Technologies (GHGT) (18 Nov 2012 - 22 Nov 2012 : Kyoto, Japan) |
Editor: | Dixon, T. Yamaji, K. |
Statement of Responsibility: | R.R. Haese, T. LaForce, C. Boreham, J. Ennis-King, B.M. Freifeld, L. Paterson, U. Schacht |
Abstract: | Residual CO2 trapping (Sgr-CO2) is a key mechanism for geological CO2 storage. The CO2CRC undertook a sequence of field tests with the aim of comparing different ways of determining Sgr-CO2 including a dissolution test. Dissolution test results show an unexpectedly early breakthrough and low maximum CO2 concentrations in the back- produced water making the data inconclusive when using traditional data interpretation. Here, we consider two conditions to explain the observations: Firstly, residual CO2 is vertically unevenly distributed and, secondly, the fluid and residual CO2 are not in equilibrium. Furthermore, we postulate localised flow channels have formed during the 3- month test period caused by advective flow of CO2-saturated, low pH water leading to transport-controlled mineral dissolution. |
Keywords: | storage capacity; single well test; residual CO2; heterogeneity |
Rights: | © 2013 The Authors. Open access under CC BY-NC-ND license [http://creativecommons.org/licenses/by-nc-nd/3.0/]. |
DOI: | 10.1016/j.egypro.2013.06.456 |
Published version: | http://dx.doi.org/10.1016/j.egypro.2013.06.456 |
Appears in Collections: | Aurora harvest 7 Australian School of Petroleum publications |
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hdl_88147.pdf | Published version | 506.63 kB | Adobe PDF | View/Open |
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