Foamstability: The interplay between salt-, surfactant- and critical micelle concentration

Majeed, Talha; Sølling, Theis I.; Kamal, Muhammad Shahzad

doi:10.1016/j.petrol.2019.106871

Cited by 70 publications

(22 citation statements)

References 41 publications

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“…Figure presents the maximum half-life periods of the different solutions (DDA, SDS, and DDA + SDS). Similar trends have been reported for different types of surfactants. − Before reaching the critical micelle concentration (CMC), as the surfactant concentration increases, the surface adsorption capacity increases, the surface tension significantly decreases, and compactness of the molecular arrangement increases. Consequently, the foam stability is enhanced.…”

Section: Resultssupporting

confidence: 68%

Effect of Sodium Dodecyl Sulfonate on the Foam Stability and Adsorption Configuration of Dodecylamine at the Gas–Liquid Interface

et al. 2021

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In this study, the effect of sodium dodecyl sulfonate (SDS) on the foam stability of dodecylamine (DDA) and on its adsorption configuration at the gas–liquid interface was investigated. Froth stability experiments, surface tension measurements, time-of-flight secondary-ion mass spectrometry measurements, and molecular dynamics simulation calculations were performed in this investigation. The results revealed that the foam stability of DDA solution was extremely strong, and the addition of SDS could decrease the foam stability when the concentration of DDA was less than a certain value. The decrease in foam stability could be ascribed to several reasons, namely, the big cross-sectional area of SDS at the gas–liquid interface and low adsorption capacity of surfactants at the gas–liquid interface, the high surface tension, the change in the double-layer structure, the small thickness of the gas–liquid interfacial layer, the weak interaction intensity between the head groups of the surfactants and the water molecules, the strong movement ability of the water molecules around the head groups, and the sparse and less upright arrangement configuration of molecules at the gas–liquid interface. These findings can greatly help in solving the strong foam stability problem in DDA flotation and provide a method for reducing foam stability.

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Section: Resultssupporting

confidence: 68%

Effect of Sodium Dodecyl Sulfonate on the Foam Stability and Adsorption Configuration of Dodecylamine at the Gas–Liquid Interface

et al. 2021

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“…In a recent work by our group, we studied the effect of NaCl salt on AOS surfactant properties 49 and tried to investigate the apparently contradicting findings that have been reported previously. [44][45][46]48,50,51 We performed a series of experiments involving AOS surfactant, where foaming was induced in the presence and absence of salt.…”

Section: Foam Stabilizersmentioning

confidence: 99%

“…In a recent work by our group, we studied the effect of NaCl salt on AOS surfactant properties and tried to investigate the apparently contradicting findings that have been reported previously. − ,,, We performed a series of experiments involving AOS surfactant, where foaming was induced in the presence and absence of salt. Moreover, we varied the surfactant concentration in the presence of salt to understand the role of the surfactant concentration on foam stability in the presence of salt.…”

Section: Foam Stabilizersmentioning

confidence: 99%

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A Review on Foam Stabilizers for Enhanced Oil Recovery

et al. 2021

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The application of foam in the upstream petroleum industry has gained significant interest in the past few years. Foam usage can mitigate challenges associated with the gas flooding; it simply reduces the gas’s mobility, which could significantly enhance the sweep efficiency. Foam is generated using CO2 or N2 and stabilized by different materials such as surfactants, nanoparticles, polymers, or a combination thereof. The success of foam injection mainly depends on the stability of the flowing foam; the harsh reservoir conditions is one of the major challenges in this regard. Historically, surfactants have been used to generate and stabilize foams. However, recently, nanoparticles have gained attention due to their higher adsorption energy at the gas–liquid interface. In this paper, foam stabilizers such as surfactants, nanoparticles, and polymers are reviewed. Relevant advantages/disadvantages of different foam stabilizers and associated challenges are also highlighted. The results obtained in previous studies are discussed, and conflicting findings are highlighted and critically analyzed. Field applications of CO2 foam are also discussed in this Review. There are only a few field trials using surfactant stabilized foam. However, nanoparticle stabilized foam has not been tested in the field.

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“…In order to determine the critical micelle concentration (CMC) of the surfactants, surface tension (τ) measurements were taken of different concentrations of surfactant solutions, with and without glycerol, at room temperature of 26 • C [19] by the Superficial Tension apparatus, SensaDyne/QC6000. The surfactant and KCl (2 wt.…”

Section: Surfactant Solutions Propertiesmentioning

confidence: 99%

Study of Enhanced Oil Recovery and Adsorption Using Glycerol in Surfactant Solution

et al. 2020

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Over time, oil production in a reservoir tends to decrease, which makes it difficult to flow through the reservoir to the well, making its production increasingly difficult and costly. Due to their physical properties, such as reducing the water/oil interfacial tension, surfactants have been used in enhanced oil recovery (EOR) processes, however, their adsorption presents as an undesirable and inevitable factor and can decrease the efficiency of the method. This work’s main objective is to evaluate the effect of glycerol in the adsorption of surfactants in sandstones, as well as in the recovery factor during EOR. Brine solutions containing the nonionic surfactant saponified coconut oil (SCO), with and without glycerol, were used in the adsorption and oil recovery tests in sandstone. Adsorption, recovery, rheological, and thermogravimetric analysis were carried out. Regarding the surfactant/glycerol/brine solution, there was an improvement in the oil mobility, as the glycerol contributed to an increase in the viscosity of the solution, thereby increasing the sweep efficiency. The recovery factor obtained for the surfactant solution with glycerol was satisfactory, being 53% higher than without glycerol, because it simultaneously provided an increase in viscosity and a decrease in interfacial tension, both of which are beneficial for the efficiency of the process.

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Foamstability: The interplay between salt-, surfactant- and critical micelle concentration

Cited by 70 publications

References 41 publications

Effect of Sodium Dodecyl Sulfonate on the Foam Stability and Adsorption Configuration of Dodecylamine at the Gas–Liquid Interface

Effect of Sodium Dodecyl Sulfonate on the Foam Stability and Adsorption Configuration of Dodecylamine at the Gas–Liquid Interface

A Review on Foam Stabilizers for Enhanced Oil Recovery

Study of Enhanced Oil Recovery and Adsorption Using Glycerol in Surfactant Solution

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