Lin, Yu-Jiun, He, Peng, Tavakkoli, Mohammad, Mathew, Nevin Thunduvila, Yap, Yit-Fatt, Chai, John, Goharzadeh, Ashfin, Vargas, F. M. and Biswal, S. L. (2016) Examining Asphaltene Solubility on Deposition in Model Porous Media. Langmuir, 32 (34). pp. 8729-8734. ISSN 0743-7463
- Accepted Version
Restricted to Repository staff only until 17 August 2017.
Asphaltenes are known to cause severe flow
assurance problems in the near-wellbore region of oil reservoirs. Understanding the mechanism of asphaltene deposition in porous media is of great significance for the development of accurate numerical simulators and effective chemical remediation treatments. Here, we present a study of the dynamics of asphaltene deposition in porous media using microfluidic devices. A model oil containing 5 wt % dissolved asphaltenes was mixed with n-heptane, a known asphaltene
precipitant, and flowed through a representative porous media microfluidic chip. Asphaltene deposition was recorded and analyzed as a function of solubility, which was directly correlated to particle size and Péclet number. In particular, pore-scale visualization and velocity profiles, as well as three stages of deposition,
were identified and examined to determine the important convection−diffusion effects on deposition.
|Subjects:||T Technology > TJ Mechanical engineering and machinery|
|Schools:||School of Computing and Engineering
School of Computing and Engineering > Diagnostic Engineering Research Centre > Energy, Emissions and the Environment Research Group
|Depositing User:||John Chai|
|Date Deposited:||08 Sep 2016 15:46|
|Last Modified:||20 Dec 2016 13:52|
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