摘要
对三种含蜡原油的实验研究表明,凝点以下5～7℃的原油有较强的剪切历史效应,但凝点以上2℃时,所试验的0～145.8s^(-1)范围的剪切历史对平衡流动曲线没有影响;添加降凝剂使原油的剪切历史效应增强,流动性测量过程中的剪切率变化方式对非牛顿原油的平衡流动曲线测量结果有不可忽视的影响。
Experiment of three kinds of wax-bearing crude shows that when pour—point under 5～7℃ the crude possesses a stronger shearing histroy effect, but when pour-point over 2℃ the shearing histroy has no effect to the equilibrium flow curve, in case of adding pour-point inhibitor the shearing history effect is strengthened, and it can't be ignored that the metering resah of equilibrium flow curve of nonNewton crude effected by the changing style of shearing rate in course of flow ability metering.
