Quantifying the effects of depositional environment on deep saline formation co2 storage efficiency and rate
2018
Abstract In an effort to reduce carbon dioxide (CO 2 ) emissions from large stationary sources, carbon capture and storage (CCS) is being investigated as one approach in a portfolio of greenhouse gas (GHG) reduction strategies. This work assesses CO 2 storage rates and efficiency of saline formations classified by interpreted depositional environment at the regional scale over a 100-year time frame. The focus of this study was placed on developing results applicable to future commercial-scale CO 2 storage operations in which an array of injection wells would be used to optimize storage in saline formations. The results of this work suggest future investigations of prospective storage resource in closed or semiclosed formations that may focus less heavily on interpretation of depositional processes. However, the results illustrate the relative importance of depositional environment, aquifer depth, structural geometry, and boundary conditions on the rate of CO 2 storage in closed or semiclosed systems.
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