胜利原油粘温特性的实验研究

长输管道内的油流具有复杂的热历史和剪切历史，从相似性上说，只有管路试验才有可能对其进行模拟，利用管流试验装置对胜利原油进行了四个方面的研究，包括管流条件下的粘温关系，降温速率的影响，重复热处理的影响以及管径影响等，研究表明，降温速率对反常点以后的粘温特性有较大影响，密闭条件下进行重复热处理对油品特性几乎没有影响，管径不同，导致历史不同，因而影响低温油品的特性。

Effects on Viscosity-temperature Characteristic of Shengli Oil in Pipeline Exerted by History

Oil in pipeline has complicated heat-history and shear-history,which can be simulated only by instrument of pipe-flow if similarity is considered. In this paper, the instrument was used to measure the curve of viscosity-temperature,influnce of rate of decreasing temperature,influnce of repeated heat treatments and influnce of pipe diameter. It has been found that the rate of decreasing temperature has great influnce on viscosity-temperature property of the oil below abnormal point; the repeated treatments have no effect on the property;the different diameters,resulting in different history,have some effect on the property of cold oil.