摘要
为了研究热历史对大庆含蜡原油粘弹性的影响,结合原油流变学理论,借助小振幅振荡剪切实验对大庆喇嘛甸油田含蜡原油进行粘弹性研究~0。结果表明:热历史是影响喇嘛甸油田原油粘弹性的主要因素。在牛顿回升温度下,实验原油油样的储能模量与耗能模量变化趋势相同,均发生了增大,只是增大的幅度不同,油样的粘弹性增强;在非牛顿回升温度下(高于测量温度),实验原油油样的储能模量与耗能模量变化趋势相同,均发生了减小,只是减小的幅度不同,油样的粘弹性减弱。且非牛顿回升温度越低,储能模量与耗能模量的值减小的幅度越大,粘弹性特征也越弱。
In order to study the effect of thermal history on the viscoelasticity of Daqing waxy crude oil, combined with the rheology theory of crude oil, the small amplitude oscillatory shear scanning test was used to study the viscoelasticity of the waxy crude oil form Daqing Lamadian Oilfield. The results showed that thermal history was the main factor affecting the viscoelasticity of crude oil in Daqing Lamadian Oilfield. When the ascending temperature was Newton＇s temperature, both storage modulus and loss modulus of waxy crude oil of Lamadian Oilfield increased at different degrees, and the viscoelasticity enhanced; when it was non-Newtonian ascending temperature, both storage modulus and loss modulus of waxy crude oil of Lamadian Oilfield decreased at different degrees, and the viscoelasticity weakened. And the lower the non-Newtonian temperature was, the more the modulus decreased, the weaker the viscoelastic properties were.
作者
刘保君
孙立圆
石竟成
国丽萍
刘承婷
LIU Bao-jun;SUN Li-yuan;SHI Jing-cheng;GUO Li-ping;LIU Cheng-ting(Northeast Petroleum University, Heilongjiang Daqing 163000, China;Langfang Pipeline Bureau, Hebei Langfang 065000, China)
出处
《当代化工》
CAS
2018年第4期692-695,共4页
Contemporary Chemical Industry
基金
国家自然科学基金项目"W/O型含蜡原油乳状液触变特性及其微观机理研究"
项目号51404072
关键词
含蜡原油
粘弹性
振荡剪切
热历史
Waxy crude oil
Viscoelasticity
Oscillatory shear
Thermal history
