Study of the Rheological Properties and Flow Process of High-Viscosity Oil Using Depressant Additives

Alexander Nikolaev and Kristina Plotnikova ()
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Alexander Nikolaev: Department of Transportation and Storage of Oil and Gas, St. Petersburg Mining University, 199106 St. Petersburg, Russia
Kristina Plotnikova: Department of Transportation and Storage of Oil and Gas, St. Petersburg Mining University, 199106 St. Petersburg, Russia

Energies, 2023, vol. 16, issue 17, 1-19

Abstract: This article analyzes the dependence of the choice of the method of transportation of high-viscosity oil on the rheological characteristics of the oil in question. An analysis of existing rheological models of high-viscosity oil was carried out, and it was found that a number of models have certain features (model coefficients, their purpose, quantity) that affect the choice of a rheological model of oil. The dependences for determining the coefficient of dynamic viscosity when pumping high-viscosity oil with the addition of pour-point depressants were studied, and the dependence of the hydraulic resistance coefficient when depressants are added to the oil was obtained. A method for choosing a rational oil heating temperature and diluent concentration to achieve the maximum pipeline performance is substantiated.

Keywords: high-viscosity oil; heavy oil; additives; transportation; temperature regime; coefficient of hydraulic resistance; hot pipelines; high-viscosity oil reserves (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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