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Energies 2017, 10(12), 2064; https://doi.org/10.3390/en10122064

A New Model for Describing the Rheological Behavior of Heavy and Extra Heavy Crude Oils in the Presence of Nanoparticles

1
Grupo de Investigación en Fenómenos de Superficie–Michael Polanyi, Facultad de Minas, Universidad Nacional de Colombia Sede-Medellín, Kra 80 No. 65-223, Medellín, Colombia
2
Department of Chemical Engineering, University of Wyoming, Laramie, WY 82071, USA
*
Author to whom correspondence should be addressed.
Received: 7 November 2017 / Revised: 21 November 2017 / Accepted: 29 November 2017 / Published: 5 December 2017
(This article belongs to the Section Energy Sources)
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Abstract

The present work proposes for the first time a mathematical model for describing the rheological behavior of heavy and extra-heavy crude oils in the presence of nanoparticles. This model results from the combination of two existing mathematical models. The first one applies to the rheology of pseudoplastic substances, i.e., the Herschel-Bulkley model. The second one was previously developed by our research group to model the rheology of suspensions, namely the modified Pal and Rhodes model. The proposed model is applied to heavy and extra heavy crude oils in the presence of nanoparticles, considering the effects of nanoparticles concentration and surface chemical nature, temperature, and crude oil type. All the experimental data evaluated exhibited compelling goodness of fitting, and the physical parameters in the model follow correlate well with variations in viscosity. The new model is dependent of share rate and opens new possibilities for phenomenologically understanding viscosity reduction in heavy crude by adding solid nanoparticles and favoring the scale-up in enhanced oil recovery (EOR) and/or improved oil recovery (IOR) process. View Full-Text
Keywords: nanoparticles; heavy oils; modified Pal and Rhodes model; Herschel-Bulkley model; viscosity nanoparticles; heavy oils; modified Pal and Rhodes model; Herschel-Bulkley model; viscosity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Taborda, E.A.; Franco, C.A.; Alvarado, V.; Cortés, F.B. A New Model for Describing the Rheological Behavior of Heavy and Extra Heavy Crude Oils in the Presence of Nanoparticles. Energies 2017, 10, 2064.

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