Abstract
The feasibility of sequestering carbon dioxide in deep saline aquifers is of worldwide importance. This is because large volumes of carbon dioxide can be stored in underground aquifers, thereby reducing the amount of this green house gas being emitted to the atmosphere. Due to a lack of experimental data, this work was conducted to quantify the amount of carbon dioxide that can dissolve in water of varying salinity, temperature, and pressure usually encountered in underground aquifers. As expected the results show that carbon dioxide solubility increases with increasing pressure and decreases with increasing temperature and increasing salinity. A noticeable observation is that from 120°F and above, temperature has no effect on solubility with pressures greater than 4,000 psia. This data has important application when performing simulation studies for the storage of carbon dioxide in saline aquifers.
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