摘要
在油气水三相混输管路中,油水液相以油水乳状液的形态存在,气相与油水乳状液混输的特点为:1.流型变化多;2.相态间能量损失大;3.流动不稳定。针对这些特点,采用流型模型的方法对三相混输管路的压降进行研究。结合实例介绍了混输管路压降的计算方法,其计算步骤为:1.计算混输管路油、气、水物性参数;2.计算只有单相流体流动时的压降ΔP_g和ΔP_L;3.利用贝克流型图判断混输管路中流体的流动型态;4.根据流动型态计算三相混输管路的压降。该方法为研究混输问题提供了依据。
The well effluent to be transported consist of three fluids,oil,gas and water. Oil/water liquidoid exists as water-oil emulsion in pipeline of the triphase (oil,gas,water)mixed transportation. The characteristics of mixed transportation of gas phase with water-oil emulsion are:(1)various flow patterns; (2)high loss of kinetic energy between phases; (3)unsteady flow. The method of flow pattern model is adopted to study the pipeline pressure drop of the triphase mixed transportation according to the characteristics. The calculation method for the pipeline pressure drop of mixed transportation,which the paper introduces with case,consists of the following steps:(1)calculating the characteristic parameters of oil,gas and water when transported as a mixure in pipeline ;(4)calculating pressure.drop △Pg and △PL when flowing only in single phase; (3) judging flow pattern with Beck flow pattern map for mixed fluid in pipeline; (4)calculating pressure drop of triphase in mixed transportation according to the flow pattern. The calculation method provides study basis for mixed transportation.
出处
《油气储运》
CAS
北大核心
1996年第5期8-12,共5页
Oil & Gas Storage and Transportation
关键词
三相流动
混输管道
管道
压降
油气水
计算
three phase flow, mixed transportation, pipeline, pressure drop, flow pattern, cal-culation, method
