The relationship between proper demulsification temperature and the difference of viscosity number between the two emulsions was found and verified by further experiments which gives a new way to confirm the proper demulsification temperature. 通过对比发现2种体系的黏度差值与适宜破乳温度存在一定的关系,并通过实验进一步验证了这种关系,为原油生产中确定适宜破乳温度提供了新途径。