Implication of Future Carbon Dioxide Injection on Selected Niger-Delta Reservoir Rocks and Fluids

📄 Project Abstract

Mitigation against increasing carbon dioxide, CO2, in the atmosphere is uppermost in environmental research due to its negative effects and the most effective approach is in the area of underground carbon storage. In this research, a model was developed to study the possible alteration of porosity and permeability during CO2 injection to Kwale sandstone reservoir, Kwale shales, Imeri oil sand and Ota Kaolinitic clay. The proposed model combined the Timur model irreducible water saturation equation and the Coates-Dumanoir permeability equation, to describe CO2 injection influence on the Kwale reservoir permeability. The proposed model gave permeability values ranging from 0.06 milliDarcy to 92.46 milliDarcy for the Kwale sandstones and shale; 2.01 to 10.2 milliDarcy for Imeri oil sand and 1.8 to 10.2 milliDarcy for Ota Kaolinitic clay samples. In comparison, the Timur model gave permeability values from 0.0 to 634 milliDarcy; Tixier values range from 0.0 to 10053 milliDarcy; Coates-Duma...