Microemulsions in Enhanced Oil Recovery: A Review

Nazar, Muhammad Faizan; Shah, Syed Sakhawat; Khosa, Muhammad Arshad

doi:10.1080/10916460903502514

Cited by 117 publications

(80 citation statements)

References 46 publications

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“…In every case, the surfactant and cosurfactant form always an interfacial film between the aqueous and oil phases. Microemulsions have been proven useful, particularly in the area of enhanced oil recovery [5] but also in the cosmetic [6][7][8], food [9,10], and pharmaceutical industries [11][12][13] or as cleaning agents [14,15].…”

Section: Introductionmentioning

confidence: 99%

Toward surfactant-free and water-free microemulsions

Fischer

Marcus

Touraud

et al. 2015

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Toward surfactant-free and water-free microemulsions

Fischer

Marcus

Touraud

et al. 2015

Journal of Colloid and Interface Science

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“…The visual appearance of microemulsions does not change with time, inferring thermodynamic stability, a further distinguishing feature to other emulsions. These properties and features lead to applications of microemulsions as nanoreactors in chemical [1] and nanoparticle synthesis [2], as nanoparticle recovery vehicles [4], in soil remediation processes, enhanced oil recovery [5], pharmaceutical delivery [6], and engine oil and fuel additives [7].…”

Section: Introductionmentioning

confidence: 99%

Effects of small ionic amphiphilic additives on reverse microemulsion morphology

Hatzopoulos

James

Rogers

et al. 2014

Journal of Colloid and Interface Science

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms Effects of small ionic amphiphilic additives on reverse microemulsion morphology Research Highlights Cylindrical morphologies of reverse microemulsions induced by small molecule hydrotropes.  Ellipsoidal droplets of high aspect ratio in reverse AOT microemulsions are induced by short chain alkanoate additives.  A cylinder to sphere transition in reverse AOT microemulsions is seen with increasing water content. . Microemulsion domain structures were investigated by small-angle neutron scattering (SANS), and these data were fitted by structural models to yield information on the shapes (spheres, ellipsoids or cylinders) and sizes of the nanodroplets. Effects of small ionic amphiphilic additives on reverse microemulsion morphology FindingsUnder the conditions of study hydrotrope chemical structure has a significant effect on microemulsion structure: sodium cyclohexanoate does not induce the formation of cylindrical/ellipsoidal nanodroplets, whereas the aromatic analogue sodium benzoate does. Furthermore, the short chain sodium hexanoate does not cause anisotropic microemulsions, but the more hydrophobic longer chain heptanoate and octanoate analogues do induce sphere-to-ellipsoid transitions. This study shows that underlying microemulsion structures can be tuned by hydrotropes, and that the strength of the effect can be identified with hydrotrope hydrophobicity in terms of the bulk aqueous phase cac.

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“…Skin feel is very useful in film industries. Silicon resins are also useful to offer transfer resistance on lipsticks like colour cosmetics …”

Section: Application Of Surfactantsmentioning

confidence: 99%

“…In this purpose polymeric surfactants are excellent, which are to be injected in an aquous solution into oil reservoir to displace the oil trapped therein. The CEOR processes are i) polymer flooding (increasing the viscosity of water by using soluble polymers), ii) surfactant polymer (SP) flooding (mixture of polymer and surfactant is injected) and surfactant is used to reduce interfacial tension (IFT), iii) alkali‐ surfactant polymer flooding (cheap base is used in the previous solution in place of surfactant to reduce the expense of the process) . ‐…”

Section: Application Of Surfactantsmentioning

confidence: 99%

Novel Amphiphiles and Their Applications for Different Purposes with Special Emphasis on Polymeric Surfactants

et al. 2019

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Amphiphiles or surfactants are widely known for its reducing power of interfacial tension and extraordinary rheological properties. Among the various classes of surfactants gemini surfactants, biosurfactants and polymeric surfactants are remarkable and distinguishable among the others for their structural diversity and profitable usefulness. Primarily, the performance of any surfactant can be determined by HLB (Hydrophile Lipophile Balance) value, an empirical parameter. This review attempts to clarify some of the terminology used in literature by providing illustration of classification, features and diverse applications of different surfactants.

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Microemulsions in Enhanced Oil Recovery: A Review

Cited by 117 publications

References 46 publications

Toward surfactant-free and water-free microemulsions

Toward surfactant-free and water-free microemulsions

Effects of small ionic amphiphilic additives on reverse microemulsion morphology

Novel Amphiphiles and Their Applications for Different Purposes with Special Emphasis on Polymeric Surfactants

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