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Petroleum Chemistry

, Volume 59, Supplement 1, pp S21–S29 | Cite as

Correlation of Physicochemical Properties of Bach Ho Oils with Proton NMR Relaxation Parameters and Their Temperature Dependence

  • R. S. KashaevEmail author
  • N. T. Kien
  • Ch. V. Tung
  • O. V. Kozelkov
Article

Abstract

The physicochemical properties of crude oils (density, viscosity, asphaltene concentrations) from the Bach Ho oilfield (Vietnam) have been correlated with 1H NMR relaxation parameters (spin–lattice and spin–spin relaxation times T1i and T2i, respectively), and their temperature dependence has been studied. The results are discussed in terms of the concept of the formation of structural units (SU) in oils. The standard “alkane line”—the conventional correlation ηТ1,2 = const/Т for viscous oils—has been refined. The temperature dependences of T1,2i have been obtained, which manifest ordering processes in the test oils.

Keywords:

relaxation times viscosity temperature paraffin wax asphaltenes structural units ηТ1,2 = const/Т correlation 

Notes

CONFLICT OF INTEREST

The authors declare that there is no conflict of interest requiring disclosure in this paper.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • R. S. Kashaev
    • 1
    Email author
  • N. T. Kien
    • 1
  • Ch. V. Tung
    • 1
  • O. V. Kozelkov
    • 1
  1. 1.Kazan State Power Engineering UniversityKazanRussia

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