2020
DOI: 10.1021/acs.energyfuels.0c00296
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Abstract: Recently, global attraction has shifted toward heavy unconventional crude oil due to the depletion of light oil resources. Generally, heavy crude oils are highly viscous in nature; due to this, their production and transportation are challenging. Asphaltenes and resins content directly affects the viscosity of crude oil. Many viscosity reducing agents affecting asphaltenes dispersion have been developed in the recent past. The current work proposes a novel environmentally friendly chitosan-based cationic surfa… Show more

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Cited by 33 publications
(10 citation statements)
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“…The reduced viscosity of MRSSL suspension might be related to the function of surfactants in the presence of highly concentrated TEMPO, which can affect the surface tension of the solution [51,52] . This is usually utilized in the viscosity reduction of non‐Newtonian fluid of crude oil [53,54] . Our work provides an effective method to further decrease the viscosity of semi‐solid suspension by adding surfactants [55] …”
Section: Resultsmentioning
confidence: 95%
“…The reduced viscosity of MRSSL suspension might be related to the function of surfactants in the presence of highly concentrated TEMPO, which can affect the surface tension of the solution [51,52] . This is usually utilized in the viscosity reduction of non‐Newtonian fluid of crude oil [53,54] . Our work provides an effective method to further decrease the viscosity of semi‐solid suspension by adding surfactants [55] …”
Section: Resultsmentioning
confidence: 95%
“…5,6 Thus, the modification of viscosity through surfactants and bioreducers, and the change of fluid-rock interactions, has been a valuable option to improve production. [7][8][9][10] Viscosity bio-reducers are dispersing agents that do not modify the oil fractions at different temperatures but interact with the components at the molecular level, avoiding particle aggregation to reduce the pressure drop. These chemicals can be obtained from vegetal oils [11][12][13] or extracted from plants over fermentation processes.…”
Section: Introductionmentioning
confidence: 99%
“…Heavy oil is a kind of unconventional crude oil with large reserves and high exploitation difficulty, which is widely distributed in the United States, Canada, Venezuela, China, and many other countries. On the one hand, heavy oil has high viscosity, high density, high contents of gum and asphaltene, and rigid thick film with better compactness than conventional crude oil emulsion. The interpolymerization behavior of water droplets at the oil–water interface is hindered, which makes the emulsion very stable and difficult to demulsify and dehydrate . On the other hand, the developed heavy oil is fully stirred with water through the strong shear action of the pipeline to form a complex and stable emulsion. , At present, the commonly used methods of demulsification and water removal mainly include physical method, chemical method, and biological method. The chemical demulsification method is widely used in oil field demulsification because of its convenience and efficiency.…”
Section: Introductionmentioning
confidence: 99%