垂直下降管内油气水三相流的摩擦压降研究  

Experimental Studies on the Frictional Pressure Drop of Oil-Water-Air Three- phase Flow in Vertical Downward Pipe.

作　　者：苏新军[1] 王祺[1] 王树众[1] 王栋[1] 林宗虎[1] 

机构地区：[1]西安交通大学能源与动力工程学院

出　　处：《油气储运》2002年第11期40-44,共5页Oil & Gas Storage and Transportation

基　　金：国家自然科学基金会资助(项目号:59995460)

摘　　要：对垂直下降钢管内油气水三相流动的摩擦压降受折算液速、折算气速和油水混合物中含水率的影响进行了试验研究。由于气速的改变,三相流动出现了不同的流型,使得流动的摩擦压降变化也表现出不同的变化趋势,特别是在未充分发展的环状流区域,由于液膜被气芯撕裂并携带液相,因此导致摩擦压降随着气速的增加反而降低。当含水率在18％～50％以内时,随着含水率的增加,液相粘度的减小,摩擦压降减小,当大于50％时,随着含水率的增加,混合物的密度增加,摩擦压降增加。Effects of superficial gas/liquid velocities and water volume fraction on the frictional pressure drop of three-phase flow in vertical downward pipe (40 mm i. d. ) are experimentally investigated. According to the effect of superficial gas velocity,the change of frictional pressure drop of three-phase flow can be divided into several different regions,which are primarily attributed to the change of flow patterns. When water volume fraction increases from 18% to 50%,the frictional pressure drop gradient decreases. When above 50% water volume fraction,the frictional pressure drop gradient increases with the increase of water volume fraction.

关 键 词：垂直下降管 油气水三相流 摩擦压降 研究 管内 油气输送 钢管 试验 

分 类 号：TE81[石油与天然气工程—油气储运工程]