Reducing the viscosity of crude oil by pulsed electric or magnetic field
Reducing the viscosity of crude oil by pulsed electric or magnetic field
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DOI：
10.1021/ef060072x
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发表时间：
2006-09-20
期刊：
影响因子：
5.3
通讯作者：
Xu, X.
中科院分区：
文献类型：
--
作者：
Tao, R.;Xu, X.
提出了一种利用脉冲电场或磁场降低原油粘度的方法。具体地，对于石蜡基原油，磁场脉冲可以有效地降低其粘度数小时，而对于沥青基原油或混合基原油，电场脉冲也可以做到这一点。该方法不改变原油的温度;相反，它暂时将原油中的石蜡颗粒或沥青质颗粒聚集成大颗粒。这种颗粒聚集改变了原油的流变性，导致粘度降低。虽然这种粘度降低不是永久性的，但它适用于许多重要的应用，例如通过深水管道运输石油，因为它持续几个小时并且是可重复的。
A method with pulsed electric or magnetic field to reduce the viscosity of crude oil is developed. Specifically, for paraffin-base crude oil, a magnetic field pulse can effectively reduce its viscosity for several hours, while, for asphalt- base crude oil or mixed- base crude oil, an electric field pulse can do the same. The method does not change the temperature of the crude oil; instead, it temporary aggregates paraffin particles or asphaltene particles inside the crude oil into large ones. This particle aggregation changes the rheological property of the crude oil and leads to the viscosity reduction. While this viscosity reduction is not permanent, it is suitable for many important applications, such as oil transport via deepwater pipelines, since it lasts for several hours and is repeatable.