预测新疆九区稠油物性的经验关联式及常用计算方法的考察

CORRELATIONS FOR PREDICTING PHYSICAL PROPERTIES OF XINJIANG HEAVY OIL FRACTIONS AND EVALUATION OF CONVENTIONAL CALCULATION METHODS

实测了新疆九区稠油宽、窄馏分油的平均沸点、密度、折射率、运动粘度、相对分子质量、苯胺点及馏程等７种物性，得到了１１７组数据。在实测数据的基础上，开发出了用于预测５种物性的关联式共１１个。这些关联式所需物性参数少，精确度高，便于使用。同时考察了常用物性关联式对新疆九区稠油的适用性。结果表明，所开发的关联式用于预测新疆九区稠油的基本物性。

The physical properties of Xinjiang heavy oil fractions were measured and 117 sets of data were obtained. On the basis of these data, 11 correlations for predicting the basic properties are provided for Xinjiang heavy oil. The number of the parameters needed in the correlations is less, and the calculation accuracies are satisfactory. Suitability of some conventional methods for Xinjiang heavy oil were checked. The results show that the errors of corrolations presented in this paper are less than those of conventional methods. So the latter should be applied selectively.