Silica/polyacrylamide nanocomposite for inhibition of asphaltene precipitation from unstable crude oils

Hosseini-Dastgerdi, Zeinab; Maleki, Ashkan; Elyassi, Ebrahim; Rashidi, Alimorad

doi:10.1080/10916466.2022.2118773

Cited by 5 publications

(1 citation statement)

References 47 publications

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“…In addition, unlike metal oxide nanoparticles, SiO 2 nanoparticles can not only adsorb asphaltenes but also achieve surface functionalization using grafting, thereby inhibiting the deposition of asphaltenes by dispersion. Zeinab et al [ 113 , 114 ] studied synthesized silica–polyacrylamide nanocomposites and investigated their performance in inhibiting asphaltenes in unstable crude oil in water-based nanofluids. It was found that the presence of nanocomposites reduced the particle size of asphaltene aggregates.…”

Section: Asphaltene Nano-inhibitorsmentioning

confidence: 99%

Research Progress in Nanoparticle Inhibitors for Crude Oil Asphaltene Deposition

Yang,

Yan,

Cai

et al. 2024

Molecules

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Currently, the alteration of external factors during crude oil extraction easily disrupts the thermodynamic equilibrium of asphaltene, resulting in the continuous flocculation and deposition of asphaltene molecules in crude oil. This accumulation within the pores of reservoir rocks obstructs the pore throat, hindering the efficient extraction of oil and gas, and consequently, affecting the recovery of oil and gas resources. Therefore, it is crucial to investigate the principles of asphaltene deposition inhibition and the synthesis of asphaltene inhibitors. In recent years, the development of nanotechnology has garnered significant attention due to its unique surface and volume effects. Nanoparticles possess a large specific surface area, high adsorption capacity, and excellent suspension and catalytic abilities, exhibiting unparalleled advantages compared with traditional organic asphaltene inhibitors, such as sodium dodecyl benzene sulfonate and salicylic acid. At present, there are three primary types of nanoparticle inhibitors: metal oxide nanoparticles, organic nanoparticles, and inorganic nonmetal nanoparticles. This paper reviews the recent advancements and application challenges of nanoparticle asphaltene deposition inhibition technology based on the mechanism of asphaltene deposition and nano-inhibitors. The aim was to provide insights for ongoing research in this field and to identify potential future research directions.

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Section: Asphaltene Nano-inhibitorsmentioning

confidence: 99%

Research Progress in Nanoparticle Inhibitors for Crude Oil Asphaltene Deposition

Yang,

Yan,

Cai

et al. 2024

Molecules

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Effect of alumina and silica nanocomposite based on polyacrylamide on light and heavy oil recovery in presence of formation water using micromodel

Maleki¹,

Sedaee²,

Bahramian³

et al. 2024

Petroleum

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Mechanistic understanding of asphaltene precipitation and oil recovery enhancement using SiO2 and CaCO3 nano-inhibitors

Shadervan,

Jafari,

Teimouri

et al. 2024

Sci Rep

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Asphaltene precipitation in oil reservoirs, well equipment, and pipelines reduces production, causing pore blockage, wettability changes, and decreased efficiency. Asphaltenes, with their unique chemical structure, self-assemble via acid–base interactions and hydrogen bonding. Nano-inhibitors prevent asphaltene aggregation at the nanoscale under reservoir conditions. This study investigates the effect of two surface-modified nanoparticles, silica, and calcium carbonate, as asphaltene inhibitors and oil production agents. The impacts of these nano-inhibitors on asphaltene content, onset point, wettability, surface tension, and oil recovery factor were determined to understand their mechanism on asphaltene precipitation and oil production. Results demonstrate that these nano-inhibitors can significantly postpone the onset point of asphaltene precipitation, with varying performance. Calcium carbonate nano-inhibitor exhibits better efficiency at low concentrations, suspending asphaltene molecules in crude oil. In contrast, silica nano-inhibitor performs better at high concentrations. Wettability alteration and IFT reduction tests reveal that each nano-inhibitor performs optimally at specific concentrations. Silica nano-inhibitors exhibit better colloidal stability and improve oil recovery more than calcium carbonate nano-inhibitors, with maximum oil recovery factors of 33% at 0.1 wt.% for silica and 25% at 0.01 wt.% for calcium carbonate nano-inhibitors.

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Silica/polyacrylamide nanocomposite for inhibition of asphaltene precipitation from unstable crude oils

Cited by 5 publications

References 47 publications

Research Progress in Nanoparticle Inhibitors for Crude Oil Asphaltene Deposition

Research Progress in Nanoparticle Inhibitors for Crude Oil Asphaltene Deposition

Effect of alumina and silica nanocomposite based on polyacrylamide on light and heavy oil recovery in presence of formation water using micromodel

Mechanistic understanding of asphaltene precipitation and oil recovery enhancement using SiO2 and CaCO3 nano-inhibitors

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