Influence of Property and Structure of Crude Oil on Its Viscosity

Abstract

Abstract: Viscosity is one of the important physical properties of fluid. Accurate calculating the value of viscosity is of important significance in making policy of field development and selecting proper chemical separation technologies. This article inspects computation precision of the existing viscosity models to the viscosity of the crude oil, and showed that the prediction errors are bigger. On the basis of this, this article presents a method for using four-component lab data to separate plus fraction of crude oil into saturated hydrocarbon, aromatic, resin and asphaltene for crude characterization. This method can be used to more precisely describe the influences of different properties of crude components and structures on crude viscosity.

Key words: crude oil, component, composition, viscosity

CLC Number:

TE124.1

LIU Hai-bo, GUO Xu-qiang. Influence of Property and Structure of Crude Oil on Its Viscosity[J]. Xinjiang Petroleum Geology, 2008, 29(3): 347-349.

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