原油组分的性质与结构对其粘度的影响

摘要/Abstract

摘要： 粘度是流体的重要物理性质之一, 其数值的准确与否对制定油气田开发政策以及选用化工分离技术都具有重要意义。考察了现有粘度模型对原油粘度的计算精度, 发现其预测误差都较大。在此基础上, 提出利用四组分实验的数据将原油阳性组分分割成饱和烃、芳烃、胶质、沥青质等4 个假组分进行原油特征化的方法, 以更准确地描述原油阳性组分中不同性质与结构对原油粘度的影响。

关键词: 原油, 组分, 粘度

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

中图分类号:

TE124.1

刘海波, 郭绪强. 原油组分的性质与结构对其粘度的影响[J]. 新疆石油地质, 2008, 29(3): 347-349.

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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