Molecular array behavior and synergistic effect of sodium alcohol ether sulphate and carboxyl betaine/sulfobetaine in foam film under high salt conditions

Sun, Yue; Li, Yaping; Li, Chun-Xiu; Zhang, Dianrui; Cao, Xun; Song, Xinwang; Wang, Qiwei; Li, Ying

doi:10.1016/j.colsurfa.2015.02.042

Cited by 50 publications

(14 citation statements)

References 38 publications

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“…This issue, particularly high-salinity problems, is not discussed here since it has been extensively reported in the literature, with many examples, although without quantitative rules [82,[84][85][86][87][88][89][90][91][92][93][94][95].…”

Section: Insensitivity To a Formulation Variable Change Reduced Sensimentioning

confidence: 99%

How to Attain Ultralow Interfacial Tension and Three‐Phase Behavior with Surfactant Formulation for Enhanced Oil Recovery: A Review. Part 4: Robustness of the Optimum Formulation Zone Through the Insensibility to Some Variables and the Occurrence of Complex Artifacts

Salager

Antón

Arandia

et al. 2017

J Surfact & Detergents

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In enhanced oil recovery, not only the low‐tension performance, but also the robustness at optimum formulation is an important issue. The fourth part of our review series is dedicated to robustness, defined as the width of the zone exhibiting three‐phase behavior around the optimum formulation, whatever the scanned variable. It is first corroborated from a screening of the available data in the literature that the tension minimum is inversely proportional to the square of the three‐phase range in the HLD scale. However, since there is still an inaccuracy of about a factor 10 in the tension minimum, some significant improvement can be attained in some cases by increasing the three‐phase behavior width in two ways. The first approach consists of finding systems that are insensitive to some formulation variable such as temperature, surfactant mixture composition or concentration, and water‐to‐oil ratio. The second way is to produce an artifact through which the optimum formulation is produced twice in a scan. If the distance between the two events in the scan is reduced down to be zero, their corresponding three‐phase behavior zones merge and result in a wider WIII region with a low tension. Several cases of such events are reported: alkaline scans, anionic‐nonionic and anionic‐cationic mixture changes, linear change in composition in three‐surfactant mixture, partial precipitation from a surfactant mixture in a salinity scan, and excessive partitioning of polyethoxylated nonionics. More complex transitions with three effects in a single scan or three concomitantly scanned variables show even more possibilities in practice.

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Section: Insensitivity To a Formulation Variable Change Reduced Sensimentioning

confidence: 99%

How to Attain Ultralow Interfacial Tension and Three‐Phase Behavior with Surfactant Formulation for Enhanced Oil Recovery: A Review. Part 4: Robustness of the Optimum Formulation Zone Through the Insensibility to Some Variables and the Occurrence of Complex Artifacts

Salager

Antón

Arandia

et al. 2017

J Surfact & Detergents

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show abstract

“…stable (Chen et al, 2018;Osei-Bonsu et al, 2017;Pu et al, 2019;Sun et al, 2015b;Wang et al, 2016). We have examined the stability of the pseudo-films and related phenomena for our foam systems by observing behaviors of oil droplets released from surfactant solution floating to air/surfactant solution interface.…”

Section: Stabilization Of Pseudoemulsion Filmsmentioning

confidence: 99%

Synergistic Effects between Anionic and Sulfobetaine Surfactants for Stabilization of Foams Tolerant to Crude Oil in Foam Flooding

Liu

Cui

2021

J Surfact & Detergents

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In foam flooding, foams stabilized by conventional surfactants are usually unstable in contacting with crude oil, which behaves as a strong defoaming agent. In this article, synergistic effects between different surfactants were utilized to improve foam stability against crude oil. Targeted to reservoir conditions of Daqing crude oil field, China (45 C, salinity of 6778 mg L −1 , pH = 8-9), foams stabilized by typical anionic surfactants fatty alcohol polyoxyethylene ether sulfate (AES) and sodium dodecyl sulfate (SDS) show low composite foam index (200-500 L s) and low oil tolerance index (0.1-0.2). However, the foam stability can be significantly improved by mixing the anionic surfactant with a sulfobetaine surfactant, which behaves as a foam stabilizer increasing the half-life of foams, and those with longer alkyl chain behave better. As an example, by mixing AES and SDS with hexadecyl dimethyl hydroxypropyl sulfobetaine (C 16 HSB) at a molar fraction of 0.2 (referring to total surfactant, not including water), the maximum composite foaming index and oil tolerance index can be increased to 3000/5000 L s and 1.0/4.0, respectively, at a total concentration between 3 and 5 mM. The attractive interaction between the different surfactants in a mixed monolayer as reflected by the negative β s parameter is responsible for the enhancement of the foam stabilization, which resulted in lower interfacial tensions and therefore negative enter (E), spreading (S), and bridging (B) coefficients of the oil. The oil is then emulsified as tiny droplets dispersed in lamellae, giving very stable pseudoemulsion films inhibiting rupture of the bubble films. This made it possible to utilize typical conventional anionic surfactants as foaming agents in foam flooding.

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“…近年来, 随着全社会对环境友好性越来越重视, 采用绿色表面活性剂替代传统表面活性剂已是大势所趋, 以烷基糖苷、氨基酸表面活性剂等为代表的以天然来源物质为原材料、生物安全性好的新型表面活性剂, 稳定气泡性能优异, 应用前景广阔 [18,19] .…”

Section: 无膜微/纳米气泡unclassified

Micro/nano bubbles as templates in the preparation of porous materials

Qin¹,

Wang²,

Zhao³

et al. 2021

Sci. Sin.-Chim

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Recent studies have found that tiny-sized bubbles generated in the liquid phase and at the solid-liquid interface not only have extraordinary high stability, but also have unique physicochemical properties. The application prospects of micro/nano bubbles in the fields of biomedicine, environmental pollution control, and functional material preparation have been gradually revealed. In this paper, the definition, classification and basic properties of micro/nano bubbles were introduced, and the research progress and understanding of our group in the control generation, stability mechanism and application of bulk micro/nano bubbles were briefly described. The template effect of micro/nano bubbles in the preparation of functional porous materials was introduced emphatically, and an outlook on their future development was provided.

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Molecular array behavior and synergistic effect of sodium alcohol ether sulphate and carboxyl betaine/sulfobetaine in foam film under high salt conditions

Cited by 50 publications

References 38 publications

How to Attain Ultralow Interfacial Tension and Three‐Phase Behavior with Surfactant Formulation for Enhanced Oil Recovery: A Review. Part 4: Robustness of the Optimum Formulation Zone Through the Insensibility to Some Variables and the Occurrence of Complex Artifacts

How to Attain Ultralow Interfacial Tension and Three‐Phase Behavior with Surfactant Formulation for Enhanced Oil Recovery: A Review. Part 4: Robustness of the Optimum Formulation Zone Through the Insensibility to Some Variables and the Occurrence of Complex Artifacts

Synergistic Effects between Anionic and Sulfobetaine Surfactants for Stabilization of Foams Tolerant to Crude Oil in Foam Flooding

Micro/nano bubbles as templates in the preparation of porous materials

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