预测新疆九区稠油临界性质关联式的建立及常用计算方法的考察  

DEVELOPMENT OF CORRELATIONS FOR PREDICTING CRITICAL PROPERTIES OF XINJIANG HEAVY OIL FRACTIONS AND EVALUATION OF NORMAL MOTHODS

作　　者：张艳梅[1] 王从岗[1] 

机构地区：[1]石油大学炼制系

出　　处：《石油大学学报（自然科学版）》1999年第1期83-85,共3页Journal of the University of Petroleum,China(Edition of Natural Science)

基　　金：中国石化总公司资助项目

摘　　要：在自行设计、建立的半封闭管法临界性质测定装置上，测定了新疆九区稠油１８个宽、窄馏分油的临界温度和临界压力。利用实测数据，开发出了５种适用于预测新疆九区稠油馏分油临界温度和临界压力的关联式。将与石油馏分化学结构有关的参数等张比容［Ｐ］和克分子折射率Ｒｄ作为关联参数，预测临界温度的平均相对误差为０．６０％～０．６８％，预测临界压力的平均相对误差为３．３５％～３．４７％，明显优于通常的纯经验法。同时考察了６种常用临界温度和临界压力计算方法对新疆九区稠油的适用性。The critical properties of Xinjiang heavy oil fractions were measured by semi sealed tube method. On the basis of experimental data, five correlations for predicting critical properties of Xinjiang heavy oil fractions are obtained. The relative average errors of these correlations for predicting critical temperature and pressure of Xinjiang heavy oil fractions are 0.60%～0.68% and 3.35%～3.37% respectively. The parameters used in these correlations are related to the chemical structure of oil fractions. Suitabilities of six normal calculation methods for Xinjiang heavy oil are checked with the experimental data. Only the correlation of Roess is suitable for calculating the critical temperature of Xinjiang heavy oil.

关 键 词：稠油 临界性质 计算方法 关联式 馏分 

分 类 号：TE622.8[石油与天然气工程—油气加工工程] TE626