【作者】 陈小平； 许晶禹； 郭军； 张军； ZHANG Jian； LIU Shuo； WU Ying-xiang；

【Author】 CHEN Xiao-ping;ZHANG Jian;LIU Shuo;XU Jing-yu;WU Ying-xiang;GUO Jun;Institute of mechanics,Chinese academy of sciences;

【机构】 中国科学院力学研究所； Institute of mechanics,Chinese academy of sciences；

【摘要】 在稠油的开采、管输等过程中,动力黏度都是一个重要的参数,目前对稠油黏度的估计往往采用稠油黏度预测公式进行。然而,由于现有的黏度预测大多是基于区域性稠油数据的经验公式,因此,这些公式只对特定区域特定组分的稠油才有很高的预测精度。本文采用Hakke RS6000旋转流变仪对中海油采油技术服务公司和渤海油田绥中陆地处理终端的共计3种稠油的动力黏度进行了测量。稠油的黏度范围为:241~5239 MPa(30℃),测量温度范围为:20~70℃,测量压强为0.1MPa。Beal1946、Glaso1980、Hossain2005等五种黏度计算模型与本文实验数据进行了对比分析。研究表明,API度和温度均对稠油的黏度有重要的影响。在所研究的五种模型中,Hossain模型具有最高的预测精度,而Alomair模型的预测精度最差。更多还原

【Abstract】 Dynamic viscosity is an important parameter both in exploitation and pipeline transportation process of heavy oil.Current estimating of viscosity of heavy oil is often by using viscosity prediction formulas.However,because most of the existing formulas are empirical equations based on regional data,they are of high prediction precision only for heavy oil with specific components in a particular area.In this paper,viscosities of three heavy oil from suizhong oil field or China National Offshore Oil Corporation were measured using Hakke RS6000 rotational rheometer.The dynamic viscosity range at 30 ℃ was:241~5239 mPa~*s,the temperature range was:20~70 ℃ and the pressure was 0.1 MPa.Five kinds of viscosity calculation models including Beall946,Glasol980 and Hossain2005 were analyzed comparing with the experimental data.Studies had shown that both the API and temperature have great influence on the viscosity of heavy oil.In all of the five models,the prediction accuracy of Hossain model was the highest,and Alomair model the worst.更多还原