Understanding CO2-brine-wellbore cement-rock interactions for CO2 storage
File(s)
Published version
Author(s)
Type
Conference Paper
Abstract
There is a need to improve our understanding of wellbore integrity by conducting investigations into the flow, geomechanical and geochemical properties of cement and reservoir rocks under conditions representative of subsurface temperatures and pressures at the wellbore. A series of composite cement-host rock core samples were prepared and subjected to baseline flow and mechanical properties testing to determine porosity, permeability, strength and elastic properties. The hydrothermal experiments conducted have shown that variations in the solution profiles of Ca, Mg, and Fe were due to the dissolution of CO 2 for all sets of samples. The dissolution of muscovite and montmorillonite from the composite core samples resulted in increasing concentrations of Na, K and S.
Date Issued
2017-08-18
Date Acceptance
2016-11-14
Citation
Energy Procedia, 2017, 114, pp.5206-5211
ISSN
1876-6102
Publisher
Elsevier
Start Page
5206
End Page
5211
Journal / Book Title
Energy Procedia
Volume
114
Copyright Statement
© 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license
(http://creativecommons.org/licenses/by-nc-nd/4.0/)
(http://creativecommons.org/licenses/by-nc-nd/4.0/)
Sponsor
Natural Environment Research Council (NERC)
Engineering & Physical Science Research Council (EPSRC)
Grant Number
NE/H01392X/1
EP/K035967/1
Source
13th International Conference on Greenhouse Gas Control Technologies, GHGT-13
Publication Status
Published
Start Date
2016-11-14
Finish Date
2016-11-18
Coverage Spatial
Lausanne, Switzerland