Application of ultrasonic wave technology as an asphaltene flocculation inhibition method

I. Najafi, Mahmood Amani, M. R. Mousavi, M. H. Ghazanfari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Based on series of crude oil rheological properties and asphaltene flocculation confocal microscopy analysis, Najafi et al., (2011) reported the existence of an optimum radiation time at which asphaltenic crude oils reach the minimum kinematic viscosity. Accordingly, they proposed the idea of asphaltene flocculation inhibition due to wave radiation.The present investigation is a continuous effort to provide more information about the process of flocculation inhibition. Confocal microscopy and rheological analyses are performed on different crude oils to prove the repeatability of the observed phenomena. The asphaltene content analysis was done based on IP143 procedure, which provides more viable conclusions in this study. By analysis of the results obtained from the experiments, one can conclude that ultrasonic wave radiation can be the most effective if the wave is radiated up to an optimum time. Around this time the oil has its local minimum value of kinematic viscosity, the least value of asphaltene content and least potential for formation of macro-structured flocsdue to reduction in aromatic to saturate ratio. More detailed studiesrevealed that during radiation timetwo main mechanisms are active in asphaltenic crude oil which is asphaltene particles disintegration and formation of asphaltene particles. Based on asphaltene content analysis, the optimum radiation time can be defined as the time at which the two mechanisms are having equal rate. The optimum radiation times are observed in different tests and are in good accordance with each other. According to the results obtained, ultrasonic wave technology can be a potential method of flocculation inhibition and can have extensive industrial application.

Original languageEnglish
Title of host publicationSaint Petersburg 2012 - Geosciences: Making the Most of the Earth's Resources
PublisherEuropean Association of Geoscientists and Engineers, EAGE
Publication statusPublished - 2012
Externally publishedYes
EventSt. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources - Saint Petersburg, Russian Federation
Duration: 2 Apr 20125 Apr 2012

Other

OtherSt. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources
CountryRussian Federation
CitySaint Petersburg
Period2/4/125/4/12

Fingerprint

asphaltene
ultrasonic radiation
flocculation
crude oil
radiation
electromagnetic radiation
kinematics
microscopy
viscosity
disintegration
method
oils
analysis
oil

ASJC Scopus subject areas

  • Geophysics

Cite this

Najafi, I., Amani, M., Mousavi, M. R., & Ghazanfari, M. H. (2012). Application of ultrasonic wave technology as an asphaltene flocculation inhibition method. In Saint Petersburg 2012 - Geosciences: Making the Most of the Earth's Resources European Association of Geoscientists and Engineers, EAGE.

Application of ultrasonic wave technology as an asphaltene flocculation inhibition method. / Najafi, I.; Amani, Mahmood; Mousavi, M. R.; Ghazanfari, M. H.

Saint Petersburg 2012 - Geosciences: Making the Most of the Earth's Resources. European Association of Geoscientists and Engineers, EAGE, 2012.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Najafi, I, Amani, M, Mousavi, MR & Ghazanfari, MH 2012, Application of ultrasonic wave technology as an asphaltene flocculation inhibition method. in Saint Petersburg 2012 - Geosciences: Making the Most of the Earth's Resources. European Association of Geoscientists and Engineers, EAGE, St. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources, Saint Petersburg, Russian Federation, 2/4/12.
Najafi I, Amani M, Mousavi MR, Ghazanfari MH. Application of ultrasonic wave technology as an asphaltene flocculation inhibition method. In Saint Petersburg 2012 - Geosciences: Making the Most of the Earth's Resources. European Association of Geoscientists and Engineers, EAGE. 2012
Najafi, I. ; Amani, Mahmood ; Mousavi, M. R. ; Ghazanfari, M. H. / Application of ultrasonic wave technology as an asphaltene flocculation inhibition method. Saint Petersburg 2012 - Geosciences: Making the Most of the Earth's Resources. European Association of Geoscientists and Engineers, EAGE, 2012.
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