Structural and chemical changes from CO2 exposure to self-healing polymer cement composites for geothermal wellbores

•Synchrotron methods provide powerful approach to understand carbonation of polymer cements.•Chemical alteration of the polymer-cement follows the rim carbonation mechanism.•Self-healing cements maintain compressive strength for EGS applications after CO2 exposure. Wellbore cement is subjected to a...

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Veröffentlicht in:	Geothermics 2021-01, Vol.89, p.101932, Article 101932
Hauptverfasser:	Elbakhshwan, Mohamed S., Gill, Simerjeet K., Rod, Kenton A., Bingham, Emma B., McKinney, Adriana L., Huerta, Nicolas, Lopano, Christina L., Kutchko, Barbara G., Chen-Wiegart, Yu-chen Karen, Zhao, Chonghang, Williams, Garth, Thieme, Juergen, Varga, Tamas, Ecker, Lynne E., Fernandez, Carlos A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbon dioxide Carbonation Cement Compressive strength Geothermal power Polymer cements Polymer matrix composites Polymer-cement Polymers Porosity Scanning electron microscopy Self healing materials Self-healing Spectroscopy Synchrotrons Well drilling X ray absorption X-ray fluorescence XANES
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