Understanding the role of brine ionic composition on oil recovery by assessment of wettability from colloidal forces

Advances in Colloid and Interface Science
Mohammed J Alshakhs, Anthony R Kovscek

Abstract

The impact of injection brine salinity and ionic composition on oil recovery has been an active area of research for the past 25years. Evidence from laboratory studies and field tests suggests that implementing certain modifications to the ionic composition of the injection brine leads to greater oil recovery. The role of salinity modification is attributed to its ability to shift wettability of a rock surface toward water wetness. The amount of trapped oil released depends on the nature of rock, oil, and brine surface interactions. Reservoir rocks exhibit different affinities to fluids. Carbonates show stronger adsorption of oil films as opposed to the strongly water-wet and mixed-wet sandstones. The concentration of divalent ions and total salinity of the injection brine are other important factors to consider. Accordingly, this paper provides a review of laboratory and field studies of the role of brine composition on oil recovery from carbonaceous rock as well as rationalization of results using DLVO (Derjaguin, Landau, Verwey and Overbeek) theory of surface forces. DLVO evaluates the contribution of each component of the oil/brine/rock system to the wettability. Measuring zeta potential of each pair of surfaces by a charge...Continue Reading

References

Mar 21, 2007·Journal of Colloid and Interface Science·A V DelgadoUNKNOWN International Union of Pure and Applied Chemistry, Physical and Biophysical Chemistry Division IUPAC Technical Report
Nov 23, 2010·Journal of Colloid and Interface Science·Frank HeberlingDirk Bosbach

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Citations

Apr 17, 2019·Scientific Reports·María BontoHamidreza M Nick
Feb 1, 2018·Physical Chemistry Chemical Physics : PCCP·Xiao WangJianying He
Sep 17, 2020·Advances in Colloid and Interface Science·Joel T TettehReza Barati Ghahfarokhi
Mar 4, 2020·Journal of Colloid and Interface Science·Moataz O Abu-Al-SaudHamdi A Tchelepi
Dec 25, 2019·Journal of Colloid and Interface Science·Jin SongGeorge J Hirasaki
Mar 2, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Yingda LuAbbas Firoozabadi
Mar 10, 2020·ACS Applied Materials & Interfaces·Yuan HeS Sherry Zhu

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