流体组分含量及入口温度对天然气凝析液输送管道立管系统流体流动特性的影响

The influence of fluid component content and inlet temperature on the flow in gas condensate pipeline-riser system

天然气凝析液输送过程中海底管道立管系统可能形成严重段塞流。采用多相流模拟软件OLGA5,分析了天然气凝析液流体组分含量及管道入口温度对立管系统流体流动特性的影响。随着流体中重组分含量的增加和管道入口温度的降低,段塞流段塞长度增大,周期增长,频率减小。应将热力学计算考虑到严重段塞流模型中。

Severe slugging may occur in a gas condensate pipeline-riser system. The compositional software OLGA 5 is used to analyze the effects of inlet temperature and fluid composition contents on the flow in gas condensate pipeline-riser system. Results show that the slug length and cycle are longer and slug frequency becomes smaller with the increase of the heavy eompo nent contents and the decrease of inlet temperature. So the thermodynamic calculations should be considered in the modeling of severe slugging in the gas condensate pipeline-riser system.