Analytical model and numerical simulation on pipeline evacuation of offshore oil transportation system

摘要

This paper focus on the pipeline evacuation of offshore oil transportation system. The mathematical model for pipeline evacuation was established, and the total emptying time under different working pressure was calculated by using MATLAB software. Frictional resistance and velocity distribution of the pipe under different time intervals was analyzed. The numerical simulation for the pipeline evacuation was carried out by using AN SYS software. The pressure distribution, velocity distribution and distribution law of the fluid trajectory are calculated and discussed, which can provide references for the analysis and control of the variation of the pipeline during the evacuation operation.