Fuel 217 (2018) 285–296 Contents lists available at ScienceDirect Fuel journal homepage: www.elsevier.com/locate/fuel Full Length Article Carbonated water injection under reservoir conditions; in-situ WAG-type EOR a, a a b b Pedram Mahzari , Pantelis Tsolis , Mehran Sohrabi , Sultan Enezi , Ali A. Yousef , Ahmed A. Eidan Centre for Enhanced Oil Recovery and CO2 Solutions, Heriot Watt University, United Kingdom EXPEC Advanced Research Centre, Saudi Aramco, Saudi Arabia GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Enriching injection water with CO has demonstrated promising results as a method for improving the oil re- Enhanced Oil Recovery covery and securely storing CO2 in oil reservoirs. However, mutual interactions taking place between carbo- CO2 Storage nated water and reservoir oil at elevated reservoir conditions are not fully understood. Herein, we present the Carbonated Water Injection results of a thorough and direct investigation of the interactions between live-oil/CO2/aqueous-phase leading to CO2 Injection additional oil recovery and enhanced CO2 storage in pore-scale and core-scale. Carbonate Rock CO2 transfer from carbonated water to live oils can trigger liberation of light components in form of a new gaseous phase. This unique phenomenon would bring about higher degrees of oil swelling, and it
Fuel – Elsevier
Published: Apr 1, 2018
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