Microcalorimetric Study of Carbonating Produced Water as a Promising CO 2 Storage and Enhanced Oil Recovery Method

Jacquelin E. Cobos, Yassin Kissami, Issam Abdolkareem Alkutaini and Erik G. Søgaard
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Jacquelin E. Cobos: Department of Mechanical and Electrical Engineering, University of Southern Denmark, 6400 Sønderborg, Denmark
Yassin Kissami: Department of Chemistry and Bioscience, Aalborg University, 6700 Esbjerg, Denmark
Issam Abdolkareem Alkutaini: Department of Chemistry and Bioscience, Aalborg University, 6700 Esbjerg, Denmark
Erik G. Søgaard: Department of Chemistry and Bioscience, Aalborg University, 6700 Esbjerg, Denmark

Energies, 2022, vol. 15, issue 8, 1-11

Abstract: Carbonated produced water injection (CPWI) might be considered an efficient alternative to handle the largest waste stream while enhancing the oil recovery and storing carbon dioxide (CO 2 ) underground. This study was an attempt to get a deeper understanding of the oil recovery process through synergy between spontaneous imbibition and isothermal titration calorimetry (ITC) experiments. The results from the spontaneous imbibition experiments showed 7% to 11% additional oil recovery in comparison with plain produced water. Rock–fluid and fluid–fluid interactions, evaluated by isothermal titration calorimetry (ITC) experiments, confirmed that the CPW interactions with oil+EFB+chalk and oil+EFB systems are much more exothermic than those with plain PW in those systems. The synergy between spontaneous imbibition and ITC experiments provides an improved understanding of carbonated water injection in carbonate reservoirs.

Keywords: enhanced oil recovery (EOR); CO 2; carbonated produced water injection; rock–fluid; fluid–fluid; interactions (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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