Fast Proton Magnetic Resonance Relaxometry Methods for Determining Viscosity and Concentration of Asphaltenes in Crude Oils

Fast Proton Magnetic Resonance Relaxometry Methods for Determining Viscosity and Concentration of Asphaltenes in Crude Oils

We have used proton magnetic resonance relaxometry to study the dependences of the spin–lattice and spin–spin relaxation times T 1,2 on viscosity and concentration of asphaltenes + resins in crude oils, in particular from the Bach Ho field (Vietsovpetro joint venture), and we have derived equations...

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Veröffentlicht in:Journal of applied spectroscopy 2019-11, Vol.86 (5), p.890-895
Hauptverfasser: Kashaev, R. S., Kien, N. C., Tung, T. V., Kozelkov, O. V.
Format: Artikel
Sprache:eng
Schlagworte:
Analysis
Analytical Chemistry
Asphaltenes
Atomic/Molecular Structure and Spectra
Chemical industry
Herbicides
Methods
Pesticides industry
Petroleum industry
Physics
Physics and Astronomy
Polymers
Proton magnetic resonance
Refineries
Resins
Viscosity
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Beschreibung
Zusammenfassung:We have used proton magnetic resonance relaxometry to study the dependences of the spin–lattice and spin–spin relaxation times T 1,2 on viscosity and concentration of asphaltenes + resins in crude oils, in particular from the Bach Ho field (Vietsovpetro joint venture), and we have derived equations relating them. We have refined the correlation η T 1,2 = const/ T . The viscosity ν = η/ρ in these crude oils is exponentially proportional to the concentration of asphaltenes + resins.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-019-00911-4