Mineralogical controls on porosity and water chemistry during O₂-SO₂-CO₂ reaction of CO₂ storage reservoir and cap-rock core

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• 作者：Julie K. Pearce^a ; ^{J.pearce2@uq.edu.au} ; Alexandra Golab^b ; Grant K.W. Dawson^a ; Lydia Knuefing^b ; Carley Goodwin^b ; Suzanne D. Golding^a
• 关键词：CO2 geological storage ; Sandstone reservoir ; Cap-rock ; SO2 impurities ; O2 impurities ; CO2-water-rock interactions ; Micro CT ; Precipice Sandstone
• 刊名：Applied Geochemistry
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：75
• 期：Complete
• 页码：152-168
• 全文大小：4969 K
• 卷排序：75

文摘

O2-SO2-CO2 experiments on CO2 sequestration site reservoir and cap-rock cores. Coupled micro CT and geochemical characterization before and after reactions. Strong acidification with reservoir core, no change in porosity. Formation of open porosity in calcite cemented core, with buffered pH. Dissolved Mn, Mg, Co, and Zn correlated with Ca from cap-rocks.