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Design, Deployment, Performance and Assessment of Downhole and Near Surface Monitoring Technology for Geological CO2 Storage Open Access


Other title
CFD modelling
Observation well
Downhole monitoring
Type of item
Degree grantor
University of Alberta
Author or creator
Zambrano Narvaez, Gonzalo
Supervisor and department
Chalaturnyk, Rick (Civil and Environmental Engineering)
Examining committee member and department
Kumar, Amit (Mechanical Engineering)
Scott, J. Don (Civil and Environmental Engineering)
Wilson, Ward (Civil and Environmental Engineering)
Joseph, Tim (Civil and Environmental Engineering)
Lawton, Don (Geoscience, University of Calgary)
Department of Civil and Environmental Engineering
Geotechnical Engineering
Date accepted
Graduation date
Doctor of Philosophy
Degree level
Early carbon storage research and development efforts in Canada and elsewhere began with “value-added” projects such as CO2-enhanced oil recovery or CO2 enhanced coalbed methane, where the increase in production helps to offset the costs of CO2 and of its potential long-term storage. These projects provide a valuable opportunity to assess appropriate measurement, monitoring, and verification protocols for the geological storage component of carbon capture and geological storage technologies. Measurement, monitoring, and verification operations provide confidence that CO2 has been injected and stored in an environmentally sound and safe manner. Multiple, integrated monitoring instrumentation systems are being deployed in CO2 field demonstration research projects around the world and will provide experience that can be used in regulatory regimes for future commercial CO2 sequestration scale projects. The Pembina field was chosen from several fields within Alberta, Canada, for a geological CO2 storage monitoring pilot study, in which the injection of CO2 was combined with EOR. As part of the project, an existing wellbore within the study area was used as a dedicated observation well. The design and initial results during cementing of this observation well were reviewed. The experience of implementing monitoring technologies was analyzed in order to assess existing knowledge for deploying downhole instrumentation used for monitoring and verification of CO2 movements in the subsurface. Analysis indicates that the observation well allows direct monitoring and measurements at reservoir level of multiple variables through geophysical, geochemical, and geomechanical instrumentation, as well as the opportunity to carry out wellbore integrity studies under "in-situ" conditions. A postcement job and completion analysis that couples downhole measurements, analytical and numerical simulation was conducted to improve future installations. Downhole pressure gauges captured the dynamics of cement displacement and were key elements during post-cement job review and assessments of future well integrity. This research also include the performance assessment of the surface tiltmeter array, an indirect-nearsurface measurement technology, deployed in CSEMP—a CO2 enhanced coal-bed methane pilot project located also in the Pembina Field. The experience and analyses gained from the installations provide valuable insight for CO2 geological storage monitoring and risk/performance assessment.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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