Examining Asphaltene Solubility on Deposition in Model Porous Media

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

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Abstract

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.

Item Type:	Article
Contributors:	Contribution Name Email ORCID Author Lin, Yu-Jiun UNSPECIFIED UNSPECIFIED Author He, Peng UNSPECIFIED UNSPECIFIED Author Tavakkoli, Mohammad UNSPECIFIED UNSPECIFIED Author Mathew, Nevin Thunduvila UNSPECIFIED UNSPECIFIED Author Yap, Yit Fatt UNSPECIFIED UNSPECIFIED Author Chai, John j.chai@hud.ac.uk UNSPECIFIED Author Goharzadeh, Afshin UNSPECIFIED UNSPECIFIED Author Vargas, F. M. UNSPECIFIED UNSPECIFIED Author Biswal, S. L. UNSPECIFIED UNSPECIFIED
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
Related URLs:	Author
Depositing User:	John Chai
Date Deposited:	08 Sep 2016 15:46
Last Modified:	20 Dec 2016 13:52
URI:	http://eprints.hud.ac.uk/id/eprint/29340

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