Investigation of the Naturally Occurring Magnetic Nanoparticles in Crude Oil by AC Magnetic Susceptibility Experiment

Moscon, Paulo Sérgio; Pessoa, Márcio Solino; Rodrigues, Maria C. R.; Alves, André Luíz; Flores, Érico M.M.; Passamani, E. C.; Vicente, Maristela de Araújo; Santos, Maria de Fátima Pereira dos

doi:10.1007/s10948-021-05971-2

Cited by 2 publications

(3 citation statements)

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“…The heat observed on the magnetic colloids when the magnetic field is on, is indeed due to magnetic relaxation effects from the nanoparticles contained in the crude oil. Also, the increase in temperature is probably not due to the naturally occurring magnetic nanoparticles in the crude oil, 14 since the same behavior was observed for a sample containing only diesel, presented in a previous work. 20 Figure 3 B evidences the Δ T variation as a function of frequency, where the higher the frequency, the broader the temperature difference.…”

Section: Resultssupporting

confidence: 80%

“…Research on the use of magnetic nanoparticles (NPs) in the oil industry is relatively uncommon yet. However, this approach presents possible solutions to problems of flow assurance, − separation between water and oil, − asphaltenes adsorption, − and growth of wax crystals. , …”

Section: Introductionmentioning

confidence: 99%

“…However, this approach presents possible solutions to problems of flow assurance, 1 − 5 separation between water and oil, 6 − 9 asphaltenes adsorption, 10 − 12 and growth of wax crystals. 13 , 14 …”

Section: Introductionmentioning

confidence: 99%

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Iron Oxide Nanoparticles in a Dynamic Flux: Magnetic Hyperthermia Effect on Flowing Heavy Crude Oil

Brollo,

Pinheiro,

Bassani

et al. 2023

ACS Omega

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An essential part for crude oil extraction is flow assurance, being critical to maintain a financially sustainable flow while getting the petroleum to the surface. When not well managed, it can develop into a significant issue for the O & G industry. By heating the fluids, problems with flow assurance, including paraffin deposition, asphaltene, and methane hydrate, can be reduced. Also, as the temperature rises, a liquid’s viscosity decreases. Research focusing on the application of magnetic nanoparticles (NPs) in the oil industry is very recent. When magnetic nanofluids are exposed to an alternating magnetic field, the viscosity decreases by several orders of magnitude as a result of the fluid’s temperature rising due to a phenomenon known as magnetic hyperthermia. This work focuses on the use of magnetic NPs (9 nm) in heavy crude oil (API 19.0). The frequency and strength of the magnetic field, as well as the characteristics of the fluid and the NPs intrinsic properties all affect the heating efficiency. For all of the experimental settings in this work, the flowloop’s temperature increased, reaching a maximum of Δ T = 16.3 °C, using 1% wt NPs at the maximum available frequency of the equipment (533 kHz) and the highest field intensity for this frequency (14 kA/m), with a flow rate of 1.2 g/s. This increase in temperature causes a decrease of nearly 45% on the heavy crude oil viscosity, and if properly implemented, could substantially increase oil flow in the field during production.

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Section: Resultssupporting

confidence: 80%