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    Rheological modeling of water based drilling fluids containing polymer/bentonite using generalized bracket formalism

    , Article Journal of Petroleum Science and Engineering ; Volume 189 , 2020 Kariman Moghaddam, A ; Ramazani Saadatabadi, A ; Sharif University of Technology
    Elsevier B.V  2020
    Abstract
    Drilling fluids consist of several components with different physical and structural form which can be assumed as complex fluids. Optimum performance of drilling process could be obtained through the dynamic fluid computation which requires a reliable mathematical model capable to predict transient and steady state rheological behavior of drilling fluid. Generalized Newtonian formulations are the most popular models for drilling fluids due to their simplicity in spite of their inabilities to predict transient and elastic behavior of such fluids. In this paper, we have developed a mathematical model to predict transient and steady state rheological behavior of the complex fluids on the scale... 

    Mesoscopic theoretical modeling and experimental study of rheological behavior of water-based drilling fluid containing associative synthetic polymer, bentonite, and limestone

    , Article Journal of Molecular Liquids ; 2021 ; 01677322 (ISSN) Kariman Moghaddam, A ; Davoodi, S ; Ramazani S.A., A ; Minaev, K.M ; Sharif University of Technology
    Elsevier B.V  2021
    Abstract
    Employing an effective rheological model for the flow of drilling fluid that can accurately predict changing conditions is of significant importance in drilling fluid optimization. Traditional generalized Newtonian models cannot predict the time change condition, viscoelastic behavior, role of each component, or microstructural behaviors within the fluid. Consequently, the present research aims to develop constitutive equations in the framework of generalized bracket formalisms and the extra tensor concept that connect the microscopic and macroscopic properties and can overcome the aforementioned problems of traditional rheological models. The developed model is applicable for drilling fluid... 

    Mesoscopic theoretical modeling and experimental study of rheological behavior of water-based drilling fluid containing associative synthetic polymer, bentonite, and limestone

    , Article Journal of Molecular Liquids ; Volume 347 , 2022 ; 01677322 (ISSN) Kariman Moghaddam, A ; Davoodi, S ; Ramazani S. A., A ; Minaev, K. M ; Sharif University of Technology
    Elsevier B.V  2022
    Abstract
    Employing an effective rheological model for the flow of drilling fluid that can accurately predict changing conditions is of significant importance in drilling fluid optimization. Traditional generalized Newtonian models cannot predict the time change condition, viscoelastic behavior, role of each component, or microstructural behaviors within the fluid. Consequently, the present research aims to develop constitutive equations in the framework of generalized bracket formalisms and the extra tensor concept that connect the microscopic and macroscopic properties and can overcome the aforementioned problems of traditional rheological models. The developed model is applicable for drilling fluid...