Imidazoline compound, mobility control system, plugging agent for gas channeling, and method for carbon dioxide flooding
AssigneesChina University of Geosciences (Beijing), China University of Petroleum (East China)
InventorsQing You, Caili Dai, Yan Zhang, Yifei Liu, Jichao Fang, Huan Wang
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Abstract
An imidazoline compound, a mobility control system, a plugging agent for gas channeling, and a method for carbon dioxide flooding. The structure of the imidazoline compound is represented by formula (1), in which R is pentadecyl, heptadecenyl, or heptadecyl. A mobility control system that contains the imidazoline compound can interact with carbon dioxide to form a plugging agent for gas channeling, and thereby attains a plugging effect for carbon dioxide channeling in a carbon dioxide flooding process.
Claims6
A mobility control system comprising the imidazoline compound represented by formula (1), a mobility control additive, and water;
- wherein R is pentadecyl, and the mobility control additive is sodium p-toluene sulfonate.
Dependencies are inferred from the claim text.