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A Robust Modeling Approach for Predicting the Rheological Behavior of Thixotropic FluidsNormal access

Authors: M. Vasheghani Farahani, R. Shams and S. Jamshidi
Event name: 80th EAGE Conference and Exhibition 2018
Session: Poster: Well Construction and Workovers
Publication date: 11 June 2018
DOI: 10.3997/2214-4609.201801295
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 606.6Kb )
Price: € 20

Summary:
Modeling the rheological properties of Non-Newtonian fluids, specifically thixotropic ones is essential due to their presence in porous media and pipe lines, their vast application in the petroleum industry and their complex rheological behavior according to the time and shear rate. In this article, a robust modeling approach has been developed in order to predict the shear stress for the thixotropic fluids as a function of the shear rate and the other parameters such as time, structure parameter, shear modulus, hydrodynamic viscosity increment, high shear viscosity, elastic strain. Both average relative error and standard deviation obtained from applying the proposed model on available data set are less than 0.5% and 0.1, respectively confirming its accuracy in predicting the shear stress and describing the rheological behavior of the thixotropic fluids. Moreover, the results of comparison conducted on the proposed model with a recent model available in the literature have been provided to assess its predictions relative to the existing models.


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