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Title: Thin liquid films in improved oil recovery from low-salinity brine

Journal Article · · Current Opinion in Colloid & Interface Science
 [1];  [2]
  1. Yale Univ., New Haven, CT (United States). Dept. of Chemical and Environmental Engineering; Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Yale Univ., New Haven, CT (United States). Dept. of Chemical and Environmental Engineering; Reservoir Engineering Research Inst., Palo Alto, CA (United States)

Low-salinity waterflooding is a relatively new method for improved oil recovery that has generated much interest. It is generally believed that low-salinity brine alters the wettability of oil reservoir rocks towards a wetting state that is optimal for recovery. The mechanism(s) by which the wettability alteration occurs is currently an unsettled issue. This study reviews recent studies on wettability alteration mechanisms that affect the interactions between the brine/oil and brine/rock interfaces of thin brine films that wet the surface of reservoir rocks. Of these mechanisms, we pay particular attention to double-layer expansion, which is closely tied to an increase in the thickness and stability of the thin brine films. Our review examines studies on both sandstones and carbonate rocks. We conclude that the thin-brine-film mechanisms provide a good qualitative, though incomplete, picture of this very complicated problem. Finally, we give suggestions for future studies that may help provide a more quantitative and complete understanding of low-salinity waterflooding.

Research Organization:
Yale Univ., New Haven, CT (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1251044
Alternate ID(s):
OSTI ID: 1250991
Report Number(s):
LLNL-JRNL-666279-DRAFT
Journal Information:
Current Opinion in Colloid & Interface Science, Vol. 20, Issue 2; ISSN 1359-0294
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 203 works
Citation information provided by
Web of Science

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Combined microfluidics–confocal Raman microscopy platform for studying enhanced oil recovery mechanisms journal April 2019
An overview of the oil-brine interfacial behavior and a new surface complexation model journal April 2019
Zeta potential in oil-water-carbonate systems and its impact on oil recovery during controlled salinity water-flooding journal November 2016
Water wettability of graphene: interplay between the interfacial water structure and the electronic structure journal January 2018
Dispersion due to combined pressure-driven and electro-osmotic flows in a channel surrounded by a permeable porous medium journal May 2019
Investigation of rock and fluid interactions during engineered water flooding in dolomite reservoir rocks journal March 2020
Rapid freezing of water under dynamic compression journal May 2018
Wettability Alteration and Enhanced Oil Recovery Induced by Proximal Adsorption of Na + , Cl , Ca 2 + , Mg 2 + , and SO 4 2 Ions on Calcite journal September 2018
Oil Contact Angles in a Water-Decane-Silicon Dioxide System: Effects of Surface Charge journal April 2018
Role of divalent ions, temperature, and crude oil during water injection into dolomitic carbonate oil reservoirs
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Low Salinity Waterflooding in Carbonate Reservoirs: Review of Interfacial Mechanisms journal May 2018
Interactions between apolar, basic and acidic model oils and a calcite surface text January 2018
Interactions between apolar, basic and acidic model oils and a calcite surface text January 2018
Interactions between apolar, basic and acidic model oils and a calcite surface journal December 2018
Effect of multi-component ions exchange on low salinity EOR: Coupled geochemical simulation study journal September 2016
Salinity-Dependent Contact Angle Alteration in Oil/Brine/Silicate Systems: the Critical Role of Divalent Cations journal April 2017
Oil Recovery Efficiency and Mechanism of Low Salinity-Enhanced Oil Recovery for Light Crude Oil with a Low Acid Number journal January 2020
Organic-Silica Interactions in Saline: Elucidating the Structural Influence of Calcium in Low-Salinity Enhanced Oil Recovery journal September 2017
Diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticity journal June 2021
Drivers of Wettability Alteration for Oil/Brine/Kaolinite System: Implications for Hydraulic Fracturing Fluids Uptake in Shale Rocks journal June 2018