Volumetrics of CO2 Storage in Deep Saline Formations
作者： Matthew Steele-MacInnis , Ryan M. Capobianco , Robert Dilmore , Angela Goodman , George Guthrie
DOI: 10.1021/ES301598T
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摘要: Concern about the role of greenhouse gases in global climate change has generated interest sequestering CO2 from fossil-fuel combustion deep saline formations. Pore space these formations is initially filled with brine, and to accommodate injected must be by displacing a lesser extent compression brine rock. The formation volume required store given mass depends on storage mechanism. We compare equilibrium volumetric requirements three end-member processes: stored as supercritical fluid (structural or stratigraphic trapping); dissolved pre-existing (solubility solubility enhanced dissolution calcite. For typical conditions, storing trapping reduces same amount structural 50%. Accessibility determines which mechanism (structural/stratigraphic versus solubility) d...
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