海四联外输管道停输与不预热投产过程的研究

通过对海四联外输原油流变性的研究,建立了热油管道停输与不预热投产过程的数学模型,模拟计算了海四联外输管道停输与不预热投产过程,给出了管外土壤与管内油品的温度分布、管内压力的变化及流量的恢复过程.在模拟计算的基础上,实现了管道前半段动火停输、新建管段不预热直接投油,全线启动投产一次成功.现场实测数据与模拟计算结果基本一致.

Study on Shutdown and No-preheating Process of Haisilian Oil Pipeline

The mathematical model of shutdown and no-preheating process are established for heat oil pipeline through study on Haisilian Oil Pipeline. The commissioning process on shutdown and no-preheating of Haisilian Oil Pipeline is simulated and temperature distribution for the soil and oil,the variety of pressure and building-up process of throughput are given. On the basis of simulation and calculation,the pipeline commissioning with the way of shutdown (in the former section of pipe) , no-preheating for newly-built pipe section is realized. The site measured data are basically in line with the simulated calculation.