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http://dx.doi.org/10.7842/kigas.2022.26.2.1

Analysis of Effect of Surface Modified Silica Nanofluid Injection on Carbonate Rock  

Jang, Hochang (Division of Energy Engineering, Kangwon National University)
Publication Information
Journal of the Korean Institute of Gas / v.26, no.2, 2022 , pp. 1-8 More about this Journal
Abstract
The purpose of this study is to prepare GPTMS((3-Glycidoxypropyl) trimethoxysilane)-SiO2 nanofluid and analyze the effect of nanofluid injection on carbonate reservoirs. Structural analysis of silica nanoparticles modified by GPTMS was investigated by FTIR(Fourier transform infrared spectroscopy). C-H stretching vibrations at 2,950 cm-1 indicating the silica surface modification with GPTMS were observed when the silane feed was over 0.5 mmol/g. Also, the coreflooding test by nanofluid injection on the aged limestone and dolomite plug samples was carried out with different particle concentration and flow rate. The incremental oil recovery was up to 18.9%, and contact angle and permeability of carbonate samples were changed by the effect of nanoparticle adsorption on pore which caused wettability alteration and pore size change. Therefore, the prepared nanofluid will be utilized as an injection fluid for enhancing oil recovery and modifying fluid flow properties such as change of rock wettability and permeability in carbonate reservoirs.
Keywords
carbonate rock; surface modification; nanofluid injection; enhanced oil recovery;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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