A comparative study of huff-n-puff gas and solvent injection in a shale gas condensate core

Ethane injection is a novel idea in this paper and proved to be the best injection fluid on accounts of higher as well as much faster recovery as compared to methane, methanol or isopropanol. This is attributed to ethane being a lighter fluid and aiding in revaporizing the condensate. While this is also true for methane, the most significant difference between the two is that ethane is also able to reduce overall dew point pressure of the mixture, ensuring lower injection volume and time for the same recovery factor.