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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. ISSN 0743-7463 (In Press)

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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:
ContributionNameEmailORCID
AuthorLin, Yu-JiunUNSPECIFIEDUNSPECIFIED
AuthorHe, PengUNSPECIFIEDUNSPECIFIED
AuthorTavakkoli, MohammadUNSPECIFIEDUNSPECIFIED
AuthorMathew, Nevin ThunduvilaUNSPECIFIEDUNSPECIFIED
AuthorYap, Yit FattUNSPECIFIEDUNSPECIFIED
AuthorChai, Johnj.chai@hud.ac.ukUNSPECIFIED
AuthorGoharzadeh, AfshinUNSPECIFIEDUNSPECIFIED
AuthorVargas, F. M.UNSPECIFIEDUNSPECIFIED
AuthorBiswal, S. L.UNSPECIFIEDUNSPECIFIED
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:
Depositing User: John Chai
Date Deposited: 08 Sep 2016 15:46
Last Modified: 01 Dec 2016 01:22
URI: http://eprints.hud.ac.uk/id/eprint/29340

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