摘要
对水平钢管和有机玻璃管内油气水三相流动的摩擦压降特性进行了比较和研究。在含水率为18％～100％,折算液速为0.6～2.4 m/s,折算气速为0.2～2.2m/s的实验时发现,水平管内油气水三相流的摩擦压降受含水率的影响很大。在同一流动条件下,当含水率较小时,有机玻璃管内流体的摩擦压降大于钢管内流体产生的摩擦压降,随着含水率的增大,钢管的摩擦压降大于有机玻璃管的摩擦压降,这也说明,在一定条件下,除了粗糙度的影响,流体对管壁的润湿特性也会影响油气水三相流动的摩擦压降。
Frictional pressure drops of gas-oil-water flows in a horizontal steel pipe and in a Plexiglas pipe were measured and compared. Superficial velocities ranging from 0. 6-2. 0 m / s for liquid and from 0. 2 - 2. 2 m/s for air were investigated. The tested water fraction in the liquid ranged from 18% to 100%. Experiments expressed, under the same conditions, the three-phase frictional pressure drop gradient of the Plexiglas pipe was greater than that of the steel pipe during small water fraction in liquid. As the water fraction increased, the latter was greater than the former. This expressed, besides pipe wall roughness, the wetta-bility of fluids to pipe materials,the adhesion among them and the water fraction etc. might also be influential factors on the three-phase frictional pressure drop.
出处
《油气储运》
CAS
北大核心
2002年第1期28-31,共4页
Oil & Gas Storage and Transportation
基金
国家自然科学基金会资助(项目号59995460)
关键词
三相流动
摩擦压力降
润湿性
油气输送
水平管
油气水
特性
pipeline, horizontal pipeline, oil-gas-water three-phase flow, fraction, pressure drop,characteristics, experimental study
