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    A reactive transport approach for modeling scale formation and deposition in water injection wells

    , Article Journal of Petroleum Science and Engineering ; Volume 190 , 2020 Shabani, A ; Sisakhti, H ; Sheikhi, S ; Barzegar, F ; Sharif University of Technology
    Elsevier B.V  2020
    Abstract
    Petroleum industry is moving toward enhancing oil recovery methods, especially water-based methods, including low salinity and smart water flooding which water with an optimized composition is injected into the reservoir for improving oil recovery. Injection of water into the target formation is also a common operation in geothermal energy production. As the water is being injected into the reservoir, pressure and temperature change along the well column and cause scale formation. Mineral scale precipitation and deposition is a common problem for water injection wells which reduces the effective radius of the wellbore and affects the injection efficiency. In this paper, modeling scale... 

    Thermal radiation transfer calculations in combustion fields using the SLW model coupled with a modified reference approach

    , Article Journal of Quantitative Spectroscopy and Radiative Transfer ; Volume 205 , 2018 , Pages 105-113 ; 00224073 (ISSN) Darbandi, M ; Abrar, B ; Sharif University of Technology
    Elsevier Ltd  2018
    Abstract
    The spectral-line weighted-sum-of-gray-gases (SLW) model is considered as a modern global model, which can be used in predicting the thermal radiation heat transfer within the combustion fields. The past SLW model users have mostly employed the reference approach to calculate the local values of gray gases’ absorption coefficient. This classical reference approach assumes that the absorption spectra of gases at different thermodynamic conditions are scalable with the absorption spectrum of gas at a reference thermodynamic state in the domain. However, this assumption cannot be reasonable in combustion fields, where the gas temperature is very different from the reference temperature....