超稠原油降粘剂的合成及其应用性能  

Synthesis and Application Performance of Viscosity Reduction Additive to Super-Viscous Crude Oil

作　　者：张红[1] 沈本贤[1] 

机构地区：[1]华东理工大学石油加工研究所

出　　处：《华东理工大学学报（自然科学版）》2008年第4期477-481,共5页Journal of East China University of Science and Technology

基　　金：上海市重点学科建设项目资助(p1402)

摘　　要：从超稠原油内部复杂的结构组成出发,针对高含量氮化物是造成辽河超稠油粘度大的原因,合成了含氮聚合物型降粘剂,并采用红外光谱仪和核磁共振波谱仪对其进行了表征。结果表明,该降粘剂对超稠原油降粘效果显著,降粘率达到65%以上。结合两种超稠原油不同剪切速率下粘度与温度的关系,对不同稠油体系的流动模型进行预测,通过对辽河超稠油粘温预测模型的应用性能验证,证实了预测模型的相关性达到0.987。并将粘度、剪切速率和温度3参数关系进行三维模拟分析,得到了更全面、更直观的体现不同剪切状态下的粘温关系图。By analyzing the internal complex construction of Liaohe super-viscous crude oil,it is found that the high viscosity is caused by high nitrogen content. Then a new nitrogen polymeric viscosity reduction additive was prepared, whose characteristic groups were characterized by IR and ^1H-NMR. Results show that the additive has the optimum viscosity reduction effect on super viscous crude oil, the viscosity decline rate of reached above 65%. The flow model of different super-viscous crude oil systems was predic ted by correlating two typical super viscous crude oils viscosity temperature relative at different shear rates. The correlation coefficient of viscosity-temperature prediction model is proved to be 0. 987. Furthermore, the viscosity temperature correlation figure at different shear rates, which appear to be more obviously and directly, was obtained by relating the three parameters of viscosity, shear rate and temperature.

关 键 词：超稠原油 降粘特性 流变性能 降粘剂 数学模型 

分 类 号：TE358.2[石油与天然气工程—油气田开发工程]