Brine ions impacts on water-oil dynamic interfacial properties considering asphaltene and maltene constituents

Mahmoudvand, Mohsen; Javadi, Aliyar; Pourafshary, Peyman

doi:10.1016/j.colsurfa.2019.123665

Cited by 34 publications

(21 citation statements)

References 42 publications

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“…Consequently, this phenomenology shows that the effect of ions presents a consistent behavior on how they influence the interfacial properties in SOW systems at optimum formulation. Measurements of dilational interfacial rheology made by other research groups indicate the same trend, particularly the higher elastic modulus for Mg 2+ and Ca 2+ kosmotropic ions (Mahmoudvand et al, ).…”

Section: Resultsmentioning

confidence: 57%

How the Influence of Different Salts on Interfacial Properties of Surfactant–Oil–Water Systems at Optimum Formulation Matches the Hofmeister Series Ranking

Vera

Salazar-Rodríguez

Márquez

et al. 2020

J Surfact & Detergents

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In this work, we present the effects of salts on sodium dodecyl benzene sulfonate micellization and on the interfacial performance of a sodium dodecyl benzene sulfonate-heptane-brine system at optimum formulation, i.e., hydrophilic-lipophilic deviation (HLD) = 0. In order to do that, interfacial tension and dilational interfacial rheology properties of surfactant-heptane-water systems at optimum formulation are measured using an interfacial spinning drop tensiometer with an oscillating velocity, which can accurately measure interfacial rheology properties at both low and ultralow interfacial tensions. The brines used contain one of the following salts: MgCl 2 , CaCl 2 , NaCl, NH 4 Cl, NaNO 3 , CH 3 COONa, or Na 2 SO 4 . We performed a one-dimensional salinity scan with each of these salts to achieve an optimum formulation. In relation to the Hofmeister series, we found that, at optimum formulation, systems with chaotropic ions (NH 4 + , NO 3 − ) present interfaces with ultralow interfacial tensions, very low dilational modulus, and a low phase angle, whereas kosmotropic ions (Mg 2+ , Ca 2+ , SO 4 −2 ) generate high interfacial tension and high rigidity monolayers. Intermediate ions in the Hofmeister series (Na + , CH 3 COO − , Cl − ) present interfaces with intermediate properties. Furthermore, according to the Hofmeister series, interfaces can be respectively ordered from higher to lower rigidity for surfactant counterions Mg 2+ > Ca 2+ > Na + > NH 4 + and coions SO 4 2− > CH 3 COO -> Cl − > NO 3 −, which correspond to a saltingout (highest rigidity) and salting-in (lowest rigidity) effect. We observed that counterions have a more significant effect on surfactant-oil-water system properties than those that act as coions.Keywords Hofmeister series Á Interfacial rheology Á Microemulsion Á Micellization Á Salt effects Á Ultralow interfacial tension J Surfact Deterg (2020) 23: 603-615.

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Section: Resultsmentioning

confidence: 57%

How the Influence of Different Salts on Interfacial Properties of Surfactant–Oil–Water Systems at Optimum Formulation Matches the Hofmeister Series Ranking

Vera

Salazar-Rodríguez

Márquez

et al. 2020

J Surfact & Detergents

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“…Atomically-resolved understanding of salinity-dependent and ion-specific effects on brine-hydrocarbon interfaces is much needed to advance the field of enhanced oil recovery. To date, the main focus of the experimental, computational and theoretical literature has been on the surface behavior of polar and heavy compounds of crude oil, in an attempt to reveal the effects of salinity on the oil-brine interfaces [21,22]. Although aromatics and aliphatics comprise the major fraction of typical crude oils, there is a paucity of investigation on the interfacial role of those compounds.…”

Section: Introductionmentioning

confidence: 99%

How do ions contribute to brine-hydrophobic hydrocarbon Interfaces? An in silico study

Badizad

Koleini

Hartkamp

et al. 2020

Journal of Colloid and Interface Science

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Hypothesis: The saltwater-oil interface is of broad implication in geochemistry and petroleum disciplines. To date, the main focus has been on the surface contribution of polar, heavy compounds of crude oil, widely neglecting the role of non-polar hydrocarbons. However, non-polar compounds are expected to contribute to characteristics of oil-brine interfaces. Methodology: Utilizing molecular dynamics simulation, we aim to characterize ion behavior adjacent to hydrophobic organic phases. Concerning natural environments, NaCl, CaCl 2 and Na 2 SO 4 electrolytes at low (5 wt%) and high (15 wt%) concentrations were brought in contact with heptane and/or toluene which account for aliphatic and aromatic constituents of typical crude oils, respectively. The reproduced experimental data for interfacial tension, brines density and ions' diffusivities adequately verify our molecular calculations. Findings: Ions accumulate nearby the intrinsically charge-neutral oil surfaces. A disparate surfacefavoring propensity of ions causes the interfacial region to resemble an electrical layer and impose an

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“…Interfacial tension of brine–oil system of deionized water and brine with 0.1 M salinity of different salts (NaCl, MgCl 2 , CaCl 2 , Na 2 SO 4 ). Reproduced with permission from ref . Copyright 2019, Elsevier.…”

Section: Underlying Mechanismsmentioning

confidence: 99%

“…The investigation of the individual effect of NaCl, CaCl 2 , MgCl 2 , and Na 2 SO 4 by Mahmoudvand et al 155 showed that the accumulation of ions from the water phase at the interface depends on the surface charges of oil components. The solutions containing divalent cations (Mg 2+ and Ca 2+ ) had the strongest effects, and the solution containing Na + had the weakest effect on brine and oil interface interfacial characteristics.…”

Section: Underlying Mechanismsmentioning

confidence: 99%

Critical Review of Underlying Mechanisms of Interactions of Asphaltenes with Oil and Aqueous Phases in the Presence of Ions

Mahdavi

Moghadam

2021

Energy Fuels

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Asphaltene studies have been a prime focus topic for many decades. However, the underlying interaction mechanisms between water, oil, and asphaltenes requires more attention. Water is involved in all production parts (reservoir, tubing, surface facilities, and refinery), posing comprehensive research about the issues and operating conditions. According to the available literature, there are contradictory opinions regarding the effect of salinity on the aqueous phase and the oil phase interfacial characteristics. This review provides a critical summary of asphaltene’s role in the stability of the aqueous phase emulsions in an oil phase. We reviewed the effect of temperature, pressure, asphaltene concentration, bulk phase components, different salinity, types of ions, and pH on emulsion stability regarding the low salinity water injection aspects. Moreover, the studied cases investigating emulsion stability in the presence of asphaltenes and other species were collected, compared, and categorized. Furthermore, the interfacial and rheological characteristics of the brine–oil interface composed of asphaltenes and other species were compared. We found that the effect of some parameters requires an in-depth study as there are not many related works. For example, the effect of pressure on the rheological characteristics of emulsions and, at the same time, on the aggregation, precipitation, and deposition using visual devices (high pressure–high temperature microfluidic) is missing from the literature. Therefore, we recommend a specific study of each crude oil’s combined effects of temperature, pressure, and salinity. Low salinity water injection is a newly developed enhanced oil recovery method that employs the results of emulsion studies in the presence of different ions and reservoir conditions (high pressure and high temperature).

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Brine ions impacts on water-oil dynamic interfacial properties considering asphaltene and maltene constituents

Cited by 34 publications

References 42 publications

How the Influence of Different Salts on Interfacial Properties of Surfactant–Oil–Water Systems at Optimum Formulation Matches the Hofmeister Series Ranking

How the Influence of Different Salts on Interfacial Properties of Surfactant–Oil–Water Systems at Optimum Formulation Matches the Hofmeister Series Ranking

How do ions contribute to brine-hydrophobic hydrocarbon Interfaces? An in silico study

Critical Review of Underlying Mechanisms of Interactions of Asphaltenes with Oil and Aqueous Phases in the Presence of Ions

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