Please use this identifier to cite or link to this item:
Scopus Web of Science® Altmetric
Type: Journal article
Title: Carbon sequestration potential of the Habanero reservoir when carbon dioxide is used as the heat exchange fluid
Author: Xu, C.
Dowd, P.
Li, Q.
Citation: Journal of Rock Mechanics and Geotechnical Engineering, 2016; 8(1):50-59
Publisher: Elsevier BV
Issue Date: 2016
ISSN: 1674-7755
Statement of
Chaoshui Xu, Peter Dowd, Qi Li
Abstract: The use of sequestered carbon dioxide (CO2) as the heat exchange fluid in enhanced geothermal system (EGS) has significant potential to increase their productivity, contribute further to reducing carbon emissions and increase the economic viability of geothermal power generation. Coupled CO2 sequestration and geothermal energy production from hot dry rock (HDR) EGS were first proposed 15 years ago but have yet to be practically implemented. This paper reviews some of the issues in assessing these systems with particular focus on the power generation and CO2 sequestration capacity. The Habanero geothermal field in the Cooper Basin of South Australia is assessed for its potential CO2 storage capacity if supercritical CO2 is used as the working fluid for heat extraction. The analysis suggests that the major CO2 sequestration mechanisms are the storage in the fracture-stimulation damaged zone followed by diffusion into the pores within the rock matrix. The assessment indicates that 5% of working fluid loss commonly suggested as the storage capacity might be an over-estimate of the long-term CO2 sequestration capacity of EGS in which supercritical CO2 is used as the circulation fluid.
Keywords: Carbon sequestration; Carbon dioxide (CO2) geological storage capacity; Enhanced geothermal system (EGS); CO2-EGS; Habanero project
Description: Available online 25 June 2015
Rights: © 2016 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. All rights reserved.
DOI: 10.1016/j.jrmge.2015.05.003
Grant ID:
Published version:
Appears in Collections:Aurora harvest 3
Civil and Environmental Engineering publications

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.