Thermodynamics of Micellization, Interfacial Behavior and Wettability Alteration of Aqueous Solution of Nonionic Surfactants

2017 ◽  
Vol 54 (5) ◽  
pp. 427-436 ◽  
Author(s):  
Sunil Kumar ◽  
Ajay Mandal
Keyword(s):  
Aqueous Solution ◽  
Nonionic Surfactants ◽  
Wettability Alteration ◽  
Interfacial Behavior ◽  
Thermodynamics Of Micellization

scholarly journals Investigation on the effect of CuO nanoparticles on the IFT and wettability alteration at the presence of [C12mim][Cl] during enhanced oil recovery processes

2022 ◽  
Author(s):  
Nabeel Kadhim Abbood ◽  
Abdolrahman obeidavi ◽  
Seyednooroldin Hosseini
Keyword(s):  
Aqueous Solution ◽  
Oil Recovery ◽  
Considerable Effect ◽  
Cuo Nanoparticles ◽  
Wettability Alteration ◽  
Pendant Drop ◽  
Cuo Nps ◽  
Tertiary Oil Recovery ◽  
Wet Condition ◽  
Pendant Drop Method

AbstractIn the current study, the effect of CuO nanoparticles (CuO-NPs) at the presence of dodecyl-3-methylimidazolium chloride ([C12mim][Cl]) is investigated on the interfacial tension (IFT) reduction, wettability alteration, and even tertiary oil recovery. Since the prepared solutions with CuO-NPs are completely dark and it is impossible to measure the IFT of these solutions in the presence of crude oil using the pendant drop method (since one of the phases must be transparent for IFT measurement using the pendant drop method), n-heptane (representative of saturates) and toluene (representative of aromatics) are used only for IFT measurement of solutions prepared by CuO-NPs, while rest of the experiments are performed using crude oil. The obtained results reveal that CuO-NPs are not stable in the aqueous solution in the absence of surfactant which means fast precipitation of CuO-NPs and a high risk of pore plugging. In this way, the stability of CuO-NPs is investigated at the presence of dodecyl-3-methyl imidazolium chloride ([C12mim][Cl]) as an effective surfactant for stabilizing the CuO-NPs in the aqueous solution (more than 1 month without precipitation using 1000 ppm of IL). Further measurements reveal that although the presence of IL in the aqueous solution can reduce the IFT of oil/aqueous solution system, especially for the aqueous solutions prepared by formation brine (0.65 mN.m−1), the presence of CuO-NPs has no considerable effect on the IFT. On the other hand, not only the contact angle (CA) measurements reveal the considerable effect of IL on the wettability alteration toward water-wet condition (68.3° for IL concentration of 1000 ppm) but also the addition of CuO-NPs can significantly boost the wettability alteration toward strongly water-wet condition (23.4° for the concentration of 1000 ppm of CuO-NPs). Finally, several core flooding experiments are performed using different combinations of chemicals to find the effect of these chemicals on the tertiary oil recovery factor. The results reveal that the presence of CuO-NPs can enhance the oil recovery of injected chemical slug (aqueous solution prepared by dissolution of IL with an oil recovery factor of 10.1% based on Original oil in place (OOIP)) to 13.8, %, 16.9%, and 21.2% based on OOIP if 500, 1000, 2000 ppm of CuO-NPs existed in the solution concomitant with 1000 ppm of [C12mim][Cl].

Drying Dissipative Structures of Nonionic Surfactants in Aqueous Solution†

Langmuir ◽  
2005 ◽  
Vol 21 (22) ◽  
pp. 9889-9895 ◽  
Author(s):  
Tsuneo Okubo ◽  
Chika Shinoda ◽  
Keisuke Kimura ◽  
Akira Tsuchida
Keyword(s):  
Aqueous Solution ◽  
Nonionic Surfactants ◽  
Dissipative Structures

Mixed micelles formed by biological surfactant sodium deoxycholate and nonionic surfactants in aqueous solution

2019 ◽  
Vol 41 (3) ◽  
pp. 330-337
Author(s):  
Lin Wang ◽  
Shasha Liu ◽  
Xia Xin ◽  
Xiaorong Cao ◽  
Dong Yuan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Nonionic Surfactants ◽  
Mixed Micelles ◽  
Sodium Deoxycholate
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