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All Journal Petro : Jurnal Ilmiah Teknik Perminyakan
Wisup Bae
Sejong University
Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering

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EFFECT OF ION CONCENTRATION OF SMART WATER ON OIL RECOVERY BY SPONTANEOUS IMBIBITION TEST Shabrina Sri Riswati; Wisup Bae; Muslim Abdurrahman; Adi Novriansyah; Syamsul Irham; Dwi Atty Mardiana; Pauhesti
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 2 (2022): JUNI
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (169.976 KB) | DOI: 10.25105/petro.v11i2.15003

Abstract

Smart waterflooding has proven successfully improving oil recovery in numbers of laboratory and field scale applications. The phenomena behind the positive outcome is concluded to be wettability alteration. The smart water composition changes the wettability of the rock surface into partially water-wet, thus promoting a spontaneous imbibition of the aqueous phase and displacing the oil. However, there are some mechanisms causing the wettability alteration that have been proposed by researchers. The present study examines the oil recovery from spontaneous imbibition tests by modifying certain ion composition of the smart water. Prepared core samples with initial water and oil saturation were immersed in spontaneous imbibition cells filled with smart water and the oil recovered was monitored for some period of time. The predesigned smart water compositions consist of different ions concentration, i.e., Na+, Ca2+, and Mg2+, while maintaining identical total dissolved solid (TDS). The experimental results found that the ion composition of smart water affects the oil recovery regardless of the TDS, and low Ca2+ and Mg2+ concentrations shows the highest recovery factor.
Co-Authors Adi Novriansyah Mardiana, Dwi Atty Muslim Abdurrahman Pauhesti Pauhesti Shabrina Sri Riswati Syamsul Irham