Ultra-low interfacial tension Anionic/Cationic surfactants system with excellent emulsification ability for enhanced oil recovery

Liu, Jianbin; Liu, Shun; Zhong, Liguo; Wang, Pan; Gao, Pengchao; Guo, Qihua

doi:10.1016/j.molliq.2023.121989

Cited by 16 publications

(6 citation statements)

References 46 publications

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“…Liu et al prepared an anionic/cationic surfactant system, which can not only reduce oil–water interfacial tension (IFT) to ultralow level but also has excellent emulsification stability. This was because that the two surfactants can attract each other to offset the repulsion between molecules on the oil–water interface, forming tighter and more stable interface film . Furthermore, in surfactant emulsion flooding, the addition of nanomaterials plays a significant promoting function in stabilizing the emulsion.…”

Section: Introductionmentioning

confidence: 99%

“…This was because that the two surfactants can attract each other to offset the repulsion between molecules on the oil−water interface, forming tighter and more stable interface film. 31 Furthermore, in surfactant emulsion flooding, the addition of nanomaterials plays a significant promoting function in stabilizing the emulsion. In their investigation of the effects of nano silica (NPs) on cetyltrimethylammonium bromide (CTAB) and sodium dodecyl sulfate (SDS), Abdul-Razzaq et al found that the synergistic interaction between NPs and surfactants improves emulsion stability.…”

Section: ■ Introductionmentioning

confidence: 99%

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A Feasibility Study on Enhanced Oil Recovery of Modified Janus Nano Calcium Carbonate-Assisted Alkyl Polyglycoside to Form Nanofluids in Emulsification Flooding

Tian,

Pu,

Wang

et al. 2024

Langmuir

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Emulsification flooding can effectively enhance crude oil recovery to solve the problem of petroleum shortage. In this work, a modified Janus Nano Calcium carbonate (JNC-12) with a particle size of 30−150 nm was synthesized, and an in situ emulsification nanofluid (ISEN) was prepared with JNC-12 and alkyl polyglycoside (APG). Scanning electron microscope (SEM) showed that the dispersion of JNC-12 in air or APG solution was better than Nano Calcium carbonate (Nano CaCO 3 ). The emulsification properties, interfacial tension, and expansion modulus of ISEN were studied, and the result showed that with the increase in salinity, the emulsification rate decreased, the water yield rate increased, the interfacial tension first decreased and then increased, and the expansion modulus first increased and then decreased. With the increase in temperature, the emulsification rate, emulsion viscosity, and interfacial tension decreased. With the increased oil−water volume, the water yield rate and the emulsion viscosity increased. With increase in the concentration of JNC-12, the water yield rate, the emulsion viscosity, and the interfacial tension decreased but the expansion modulus increased. The emulsion generated by emulsifying ISEN with crude oil was an O/W emulsion, the crude oil viscosity was 4−10 times that of emulsion, and the average particle size of emulsion was 1.107 μm. The addition of ISEN caused the decrease in interfacial tension of oil−water to 0.01−0.1 mN/m. The wettability alteration experiment found that ISEN could change the lipophilic rock to hydrophilic rock. Finally, the core displacement experiments showed that compared with the first water flooding, the oil recovery of the second water flooding after ISEN flooding enhanced by 17.6%. This research has important guiding significance for in situ emulsified nanofluid flooding to enhance oil recovery.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

A Feasibility Study on Enhanced Oil Recovery of Modified Janus Nano Calcium Carbonate-Assisted Alkyl Polyglycoside to Form Nanofluids in Emulsification Flooding

Tian,

Pu,

Wang

et al. 2024

Langmuir

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“…For example, water-in-oil emulsions are generated during water/steam flooding of porous rocks for heavy oil recovery. , They are also formed when bitumen is extracted from bitumen-carrying sand using water . On the other hand, oil-in-water emulsions are generated during surfactant flooding of rocks carrying heavy oils − and flooding of anionic surfactant solutions containing silica nanoparticles …”

Section: Introductionmentioning

confidence: 99%

Forecasting the Problem of Excessive Oil Entrainment in a Desalter Using Spinning Drop Method

Sharma,

Shown,

Sulakhe

et al. 2024

ACS Omega

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Frequent desalter upsets in the refineries processing opportunity crude oils are often triggered by a rapid and uncontrollable buildup of the rag layer, a thick water-in-oil emulsion, at the oil−brine interface. This is caused by spontaneous emulsification of brine in oil. This study investigates a unique observation from a spinning drop (SD) tensiometer, revealing the low apparent interfacial tension and rigidity of SD caused by spontaneous emulsification. Fine droplets of brine generated through spontaneous emulsification decorate the SD surface and form a stable, low-energy bilayer. Simulated rag layers using the brines from upset incidences exhibit similar behavior, indicating that spontaneous emulsification is driven by chemical species in brine, which promote osmotic water transport. The rate of rag layer buildup correlates with the rate of spontaneous emulsification, with the temperature coefficient of interfacial tension reduction serving as a sensitive indicator. An imminent upset in the operation can be forecasted by measuring this temperature coefficient, enabling preventive measures.

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“…In addition, various surfactants (ionic and non-ionic surfactants) are also beneficial to low-rank coal flotation, , which is caused by the modification of low-rank coal surface or promotion of the emulsification and dispersion of the collector. , Dodecyltrimethylammonium chloride (DTAC) and sodium dodecyl sulfate (SDS) are typical cationic and anionic surfactants, respectively. DTAC and SDS surfactants have excellent emulsifying properties; therefore, they are widely used in the production of emulsifiers and foaming agents. , On the basis of this property, it is also used in mineral flotation because it can increase the foaming property of the solution. , The difference between DTAC and SDS is that carbon chains carry different electric charges and, therefore, have different affinities for the same substance. The DTAC molecules can significantly change the ζ potential of low-rank coal.…”

Section: Introductionmentioning

confidence: 99%

“…DTAC and SDS surfactants have excellent emulsifying properties; therefore, they are widely used in the production of emulsifiers and foaming agents. 26,27 On the basis of this property, it is also used in mineral flotation because it can increase the foaming property of the solution. 28,29 The difference between DTAC and SDS is that carbon chains carry different electric charges and, therefore, have different affinities for the same substance.…”

Section: Introductionmentioning

confidence: 99%

Effect of Na⁺ and K⁺ on the Modification of Low-Rank Coal by an Ionic Surfactant and Its Adsorption Mechanism

Li,

Zhou,

Albijanic

et al. 2023

Energy Fuels

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This study is dedicated to investigating the impacts of the inorganic salt concentration on low-rank coal modified by ionic surfactants [dodecyltrimethylammonium chloride (DTAC) and sodium dodecyl sulfate (SDS)] and its adsorption mechanism using ζ potential determination, total organic carbon test, contact angle measurement, and Fourier transform infrared (FTIR) analysis, in addition to the interaction theory calculations and adsorption experiments. The results of interaction model calculation, adsorption capacity and contact angle showed that the salt solution (KCl and NaCl) could effectively increase the adsorption capacity of the surfactant on coal and improve the hydrophobicity of coal. Moreover, the relatively optimal salt concentrations for DTAC-and SDS-modified coal were different, which were 500 g/t coal of KCl and 5000 g/t coal of NaCl, respectively. The FTIR analysis results indicated that DTAC was adsorbed on the coal by strong electrostatic force and weak hydrogen bonding force, but the way of SDS molecule adsorption was mainly hydrogen bonds. The role of salt ions is to break the hydrogen bonds of coal−water and surfactant−water, in addition to enhance the electrostatic interaction, which makes the electrostatic adsorption of DTAC and hydrogen bond adsorption of SDS on the coal surface easier to occur.

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Ultra-low interfacial tension Anionic/Cationic surfactants system with excellent emulsification ability for enhanced oil recovery

Cited by 16 publications

References 46 publications

A Feasibility Study on Enhanced Oil Recovery of Modified Janus Nano Calcium Carbonate-Assisted Alkyl Polyglycoside to Form Nanofluids in Emulsification Flooding

A Feasibility Study on Enhanced Oil Recovery of Modified Janus Nano Calcium Carbonate-Assisted Alkyl Polyglycoside to Form Nanofluids in Emulsification Flooding

Forecasting the Problem of Excessive Oil Entrainment in a Desalter Using Spinning Drop Method

Effect of Na⁺ and K⁺ on the Modification of Low-Rank Coal by an Ionic Surfactant and Its Adsorption Mechanism

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Ultra-low interfacial tension Anionic/Cationic surfactants system with excellent emulsification ability for enhanced oil recovery

Cited by 16 publications

References 46 publications

A Feasibility Study on Enhanced Oil Recovery of Modified Janus Nano Calcium Carbonate-Assisted Alkyl Polyglycoside to Form Nanofluids in Emulsification Flooding

A Feasibility Study on Enhanced Oil Recovery of Modified Janus Nano Calcium Carbonate-Assisted Alkyl Polyglycoside to Form Nanofluids in Emulsification Flooding

Forecasting the Problem of Excessive Oil Entrainment in a Desalter Using Spinning Drop Method

Effect of Na+ and K+ on the Modification of Low-Rank Coal by an Ionic Surfactant and Its Adsorption Mechanism

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Effect of Na⁺ and K⁺ on the Modification of Low-Rank Coal by an Ionic Surfactant and Its Adsorption Mechanism