油水两相流粘度变化对涡轮流量计测量影响的实验研究  

Experimental Investigation of the Influences of Viscosity Variations of Oil-Water Two Phase Flow on Turbine Flow-Meter

作　　者：李东晖[1] 丰飞飞[1] 许晶禹[1] 吴应湘[1] 

机构地区：[1]中国科学院力学研究所,北京100190

出　　处：《中国造船》2008年第A02期433-440,共8页Shipbuilding of China

基　　金：中国科学院知识创新工程方向性基金资助项目（KJCX2-YW-L02）;国家自然基金面上项目（10572143）

摘　　要：利用涡轮流量计测量了油水两相流动时的混合速度，重点研究了油相粘度变化和流量计入口油水相含率变化对测量精度的影响。实验采用了七种不同的油相粘度（50，160，225，400，700，1100，1450mPa·s），并在含油率0-100％范围内记录了292组不同油水混合流量下的测量值。研究结果表明，当油相粘度为低粘值50和160mPa·s时，涡轮流量计的测量误差较小，且不受入口油相含率的影响，绝对误差均在4.5％以内。当油相粘度大干225mPa·s时，随着入口油相含率的增加，误差逐渐增大。当油相粘度进一步提高到1100mPa·s以上时，涡轮流量计在较低的入口油相含率下进入非线性失效区。此外，实验数据还显示，用涡轮流量计测量油水混合流速时，测量结果对油水两相流流型不敏感。The mixture velocity measurement of oil-water two phase flow is carried out by a turbine flow-meter in this paper. The research target is the influences of viscosity variations and oil fraction of oil-water two phase flow on Turbine Flow-Meter. The experiment is finished in seven different oil viscosities and 292 measured values are recorded under the oil fraction from 0 to 100%. The results show that, when oil viscosity is 50 mPa-s and 160mPa.s, measured errors are not affected by input oil fraction and relative error is within 4-5%; but when oil viscosity reaches to 225mPa.s, absolute errors turn into negative values from positive values and take on rapidly decreasing trend along with the increases of oil input fraction;when oil viscosity further increases to 1100mPa-s, the turbine flow-meter turns into nonlinear work area. In addition, when the mixture velocity is measured by turbine flow-meter, the results are not sensitive to the flow-pattern according to the experimental data.

关 键 词：油水两相流 涡轮流量计 粘度 相含率 流型 

分 类 号：TQ021.3[化学工程] TE311[石油与天然气工程—油气田开发工程]