Phase behavioral changes in SDS association structures induced by cationic hydrotropes

Kanan, Khalid; Al-Jabari, Mohammed H.; Kayali, Ibrahim

doi:10.1016/j.arabjc.2012.08.003

Cited by 11 publications

(4 citation statements)

References 16 publications

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“…Kanan demonstrated different phase diagram positions for middle-phase microemulsions by using cationic surfactants to prepare microemulsions [54] Javanbakht 2017…”

Section: Year Research Content Referencementioning

confidence: 99%

Review: Microemulsions for the Sustainable Development of EOR

Hu,

Zhang,

Tian

et al. 2024

Sustainability

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Global oil and gas resources are declining continuously, and sustainable development has become a common challenge worldwide. In terms of environmental protection and economic benefits, the application of microemulsions for enhanced oil recovery often requires fewer chemical agents, showing distinct advantages. This paper analyzes the application prospects and trends of middle-phase microemulsions in tertiary oil recovery. The properties of middle-phase microemulsions are introduced, and an overview of the historical development, theoretical framework, influencing factors, and preparation methods of emulsions are provided. From the perspective of oil displacement systems, this paper reviews the selection and characterization methods of emulsions, as well as the interaction mechanisms between emulsions and reservoirs, proposing future research directions. The focus of the paper is on the evaluation and characterization of emulsions, the mechanisms of micro-oil displacement, and the application of advanced CT scanning technology, which gives a new understanding of wettability changes, capillary forces, and miscible solubilization processes, contributing to the reduction in displacement costs and the improvement of economic benefits. In conclusion, the middle-phase microemulsion flooding technique can significantly enhance oil recovery through the comprehensive action of various mechanisms and has been widely used in oil field development.

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“…Kanan demonstrated different phase diagram positions for middle-phase microemulsions by using cationic surfactants to prepare microemulsions [54] Javanbakht 2017…”

Section: Year Research Content Referencementioning

confidence: 99%

Review: Microemulsions for the Sustainable Development of EOR

Hu,

Zhang,

Tian

et al. 2024

Sustainability

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“…4. The addition of the short chain of cationic hydrotropic agents to sodium dodecyl sulfate (SDS) phase helped to enhance oil recovery 86 . Hydrotropes separate the close-boiling isomeric components from their binary mixtures.…”

Section: Separation Of Mixturementioning

confidence: 99%

Untitled

2019

IJPSR

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Drug discovery and development plays a major role in the world and serves mankind. The major criteria to be considered and given importance in drug development is the solubility of a drug. Among all newly discovered chemical entities, about 40% of drugs fail to reach the market due to their poor aqueous solubility or lipophilicity. Poor solubility is not only a problem for formulation development and clinical testing but also an obstacle at the very beginning while screening new compounds for pharmacological activity. Nowadays oral route is considered as the preferred route of drug administration than other routes due to its convenience in terms of ease of administration and economy. The first requirement of drug which is supposed to be given by oral route is good aqueous solubility, as the poor solubility leads to low absorption, inadequate and variable bioavailability and also gastrointestinal mucosal toxicity. To prevent these crisis, several solubility enhancement techniques have been employed to enhance the solubility of poorly soluble drugs and hydrotropic solubilization is one of them. Besides, the advantage of certain properties like high selectivity, non-inflammability, environmentally friendly, easy availability and cost-effectiveness of hydrotropes makes this technique superior to other solubilization techniques. In the present review, an attempt has been made to discuss the hydrotropic solubilization technique and highlight the applications with this approach.

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“…Their research has revealed a strong correlation between the occurrence of in situ microemulsions and flow rate, , as well as significant limitations imposed by local conditions within porous media . The EOR process of microemulsion during displacement or imbibition is that first the aqueous phase invades the residual oil to form microemulsions, and then, the subsequent displacing fluids dilute the microemulsions. − However, it is worth noting that the current researches have always taken the “optimal salinity” microemulsion-forming surfactants (Winsor III type MS) and their displacement effects as the main research object. The differences in the formation and transport of the Winsor I, II, and III type microemulsions in fractured porous media have not been reported, which may involve various EOR fields such as fractured carbonate reservoir EOR, tight or ultralow permeability reservoir fracturing, and soaking production.…”

Section: Introductionmentioning

confidence: 99%

Microfluidic-Based Analysis on the In Situ Microemulsion Formation and Transport in Fractured Porous Media

Xu,

Jiang,

Liu

et al. 2023

Energy Fuels

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In situ microemulsion, a promising tertiary oil recovery technique, involves injecting a surfactant solution capable of forming underground microemulsions (MS) to enhance oil mobilization. Typically, previous scholars have extensively conducted macroscopic salinity or oil−water ratio scanning experiments to examine the static phase behavior of in situ microemulsion. However, there is still limited understanding regarding the dynamic formation and transport mechanisms of three types of in situ microemulsions in dead-end porous media. In this study, salinity and oil−water ratio scanning experiments were first conducted to identify three types of MS capable of forming Winsor I, II, or III type microemulsions with oil and to determine the state of microemulsion phase at varying oil−water ratios. Next, in conjunction with fluorescent technology, a fractured porous micromodel was employed to study the formation and transport mechanisms of the three types of microemulsions under both undisturbed and continuously disturbed flow field. The experiments demonstrated that under undisturbed flow fields, only the formation of Winsor III type microemulsions resulted in the appearance of water droplets within the pores. However, when subjected to continuously disturbed flow conditions, the presence of water droplets within the pores was observed upon the formation of any type of microemulsion. Moreover, distinct microemulsions exhibited distinctive miscible and dilution properties. The Winsor I type microemulsion was the most easily diluted, followed by the Winsor III type microemulsion, while the Winsor II type microemulsion was the most challenging to dilute. Therefore, MS with optimal salinity might not always be the ideal choice for oil extraction in dead-end porous media. Lastly, the formation and transport of microemulsions were quantitatively analyzed using Fick's law. Higher salinity in the MS corresponded to smaller diffusion coefficients, resulting in a slower formation and transport of microemulsions. Conversely, the presence of a disturbed flow field increased the diffusion coefficient and promoted the formation and transport of microemulsion.

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Phase behavioral changes in SDS association structures induced by cationic hydrotropes

Cited by 11 publications

References 16 publications

Review: Microemulsions for the Sustainable Development of EOR

Review: Microemulsions for the Sustainable Development of EOR

Untitled

Microfluidic-Based Analysis on the In Situ Microemulsion Formation and Transport in Fractured Porous Media

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