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水平管油-气_水三相流压力梯度变化特性
张足斌1,王海琴1,林学增2
(1.中国石油大学储运与建筑工程学院,山东青岛266555 ;2.胜利油田桩西采油厂设备科,山东东营257237)
摘要:
在内径50 ram、长40 m的不锈钢水平环道内,利用压力传感器对油_气-水三相管流压力波动特堆进行试验研 究,从流型的观点分析三相管流平均压力梯度随液相中入口体积含水率、气相折算速度以及液相折算速度的变化规 律。结果表明:油水三相管流条件下的转相点对应的人口体积含水率为40% ,低于油水两相管流转相点对应的 体积含水率(60% ),油气-水三相流动转相的发生与折算液速、折算气速和液相含水率均着关fLockhart & MartineUi 两相模型可以用来预测AN | 0/W流型的油水三相流动压力梯度。
关键词:  油水三相流  压力梯度  转相  水平圆管  试验研究
DOI:
分类号:
基金项目:中国石油大学(华东)博士科研基金(Y081525)
Variation characteristics of pressure gradient for oil-gas-water three-phase flow in horizontal pipeline
ZHANG Zu-bin1,WANG Hai-qin1,LIN Xue-zeng2
(1.College of Transport & Storage and Civil Engineering in China University of Petroleum, Qingdao 266555,Chirm ;2. Equipment Section of Zhuangxi Oil Production Plant, Shengli Oilfield, Dongying 257237 ,Chiina)
Abstract:
Fluctuation characteristics of pressure gradient for gas-oil-water three-phase flow were experimentally investigated by use of pressure sensors in the horizontal stainless steel pipe with the inner diameter of 50 mm and the length of 40 m. From the view of flow regime, the influences of input water cut in liquid,gas superficial velocity and liquid superficial velocity on pressure gradient were analyzed. The results show that input water cut of phase inversion in three-phase flow was about 40% , which was lower than that in oil-water two-phase flow ( about 60% ) ? For gas-oil-water three-phase flow, water cut for point of phase inversion was related to gas superficial velocity, liquid superficial velocity and input water cut in liquid< Lockhart & MartineUi two-phase model could predict oil-gas-water three-phase pressure gradient of AN 0/W flow regime.
Key words:  oil-gas-water three-phase flow  pressure gradient  phase inversion  horizontal circular pipes  experimental study
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