Loading...

Effect ­­­­­of ultrasonic irradiation treatment on rheological behaviour of extra heavy crude oil: A solution method for transportation improvement

Rahimi, M. A ; Sharif University of Technology | 2017

841 Viewed
  1. Type of Document: Article
  2. DOI: 10.1002/cjce.22676
  3. Publisher: Wiley-Liss Inc , 2017
  4. Abstract:
  5. The highly viscous property of heavy oil often causes problems in its transportation in pipelines. Mixing heavy oil with light oil as well as ultrasound treatment are viable solutions to this problem. In this study, extra heavy crude oil samples were first diluted with 0, 0.05, 0.1, and 0.15 mL/mL (0, 5, 10, and 15 vol%) of a light crude oil; then the mixture was irradiated by ultrasonic waves for 0, 5, 10, 15, and 20 min; finally the viscous shear functions of all mixtures was measured at different values of shear rate at different temperature levels. The results revealed that the minimum viscosity of the diluted extra heavy crude oil samples was obtained at 10 min of ultrasonic irradiation. Moreover, the viscosity reduction rate in relation to temperature decreases as temperature increases. In other words, the maximum viscosity reduction rate occurred at 0.05 mL/mL (5 vol%) of light crude oil. Using the experimental data, the parameters of common rheological models were obtained and a new modified Power Law model was presented to calculate the effect of shear rate and temperature simultaneously. © 2016 Canadian Society for Chemical Engineering
  6. Keywords:
  7. Asphaltene ; Rheological model ; Ultrasonic irradiation ; Asphaltenes ; Heavy oil production ; Irradiation ; Mixtures ; Petroleum transportation ; Shear deformation ; Shear flow ; Viscosity ; Extra heavy crude oil ; Heavy crude oil ; Rheological behaviour ; Rheological modeling ; Temperature increase ; Ultrasound irradiation ; Ultrasound treatments ; Viscosity reduction ; Crude oil
  8. Source: Canadian Journal of Chemical Engineering ; Volume 95, Issue 1 , 2017 , Pages 83-91 ; 00084034 (ISSN)
  9. URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/cjce.22676