Rate of H2S and CO2 attack on pozzolan-amended Class H well cement under geologic sequestration conditions

•The rates of H2S and CO2 alteration of pozzolan-amended cement are quantified.•28-day average CO2 alteration rate is 0.016mm/day for brine-immersed cement.•H2S is able to penetrate to the interior region of cement.•Significant H2S alteration is only observed in the rim region of cement.•28-day aver...

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Veröffentlicht in:	International journal of greenhouse gas control 2014-08, Vol.27, p.299-308
Hauptverfasser:	Zhang, Liwei, Dzombak, David A., Nakles, David V., Hawthorne, Steven B., Miller, David J., Kutchko, Barbara G., Lopano, Christina L., Strazisar, Brian R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acid gas Alteration rate Carbon sequestration CO2 H2S Wellbore cement
Online-Zugang:	Volltext
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