Journal
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
Volume 247, Issue -, Pages 188-206Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnnfm.2017.07.004
Keywords
-
Categories
Funding
- Repsol-Sinopec Brazil
- ANP (National Agency of Petroleum, Natural Gas and Biofuels) [254/2014]
- CAPES (Brazilian Federal Agency for Support and Evaluation of Graduate Education within the Ministry of Education of Brazil) [33003017]
Ask authors/readers for more resources
Rheological behaviour of gelled waxy crude oils is critical to designing subsea architecture for petroleum fields. The ability to generate dimensionless models to predict the rheological behaviour of any gelled waxy crudes would be a powerful tool. Validation of the model with experimental data from a wide range of gelled waxy crudes is an essential step to reach that goal. This study presents a rheological study of six commercial gelled waxy crude oils at a temperature of 5 degrees C. Four experimental procedures were performed in a controlled-stress rheometer MARS III from HAAKE GmbH with a cone and plate geometry. The rheological curves are steady state, stress sweep curve, constant shear rate and constant shear stress. We also did a study of the aging time with two of those oils. The strength of the crystalline structure of the six gelled waxy crudes have considerable difference, where the apparent yield stress ranges from 1 to 1000 Pa. The main challenges are to predict the overshoot of the stress in constant shear rate experiments and to predict the shear rate behaviour in constant shear stress experiments. Good accuracy was obtained from comparison of the model with the experimental data. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available