An experimental study for the effect of water in Iraqi crude oil on rheological and flow characterization was achieved by the experimental rig.The crude oil used was from Al-Najaf refinery with a density of 916.6 kg/m~3,dynamic viscosity of 24.94 cp at a temperature of 25 °C.A centrifugal pump was used with a straight impeller,one suction and one discharge line.The results show that the density of the crude oil increases as the water/oil ratio increases.While the viscosity of the crude oil will be reduced.Shear stress is increased by adding water to the crude oil,the maximum value of shear stress is observed at 12.5 %.The two-phase flow rate increases as water/oil ratio increased,for the flow of water-oil,the pump head increases as water/oil ratio increases reaching to 0.8 water/oil ratio,which is the point of inversion,and then reduces.In addition,the volumetric flow rate of the two-phase flow increases as water/oil ratio is increasing and the increase in water-oil flow velocity causes rising in the pump head.
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机译：通过实验钻井率实现了伊拉克水在伊拉克原油对流变和流动表征中的实验研究。使用的原油是来自Al-Najaf炼油厂，密度为916.6 kg / m〜3，动态粘度为24.94cp在25°的温度下，CA离心泵与直叶轮，一个抽吸和一个排出线一起使用。结果表明，随着水/油比的增加，原油的密度增加。原油的粘度会增加被reduced.Shear应力增加通过将水加入原油中，在12.5％。该二相流率随着水/油比，观察到剪应力的最大值增大，对于水，油的流动，该随着水/油比达到0.8水/油比的增加，泵头增加，这是反演点，然后减少，随着水/油比增加，两相流量的体积流速增加水油流速的增加S在泵头上升。
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