基于流体质点追踪的山区泄漏原油扩散规律研究

STUDY ON OIL LEAKAGE IN MOUNTAINOUS TERRAIN BASED ON FLUID PARTICLE TRACKING METHOD

中缅油气管道是第一条长距离跨山区输油管道,途经我国地形地貌复杂、地质灾害频发的西南山区。严峻的自然地理环境使得原油管道的运行风险极大。输油管道破裂后,泄漏的油品将导致土壤变质和大面积水体污染等环境污染问题,快速预测原油的泄漏影响范围对于泄漏抢险工作具有重要意义。本文基于数字高程模型构建真实山体地形,通过流体质点追踪法描绘泄漏路径与扩散范围,提出了一种快速泄漏预测方法。使用该方法对山地管道泄漏的各种工况进行计算,研究了各种地形下泄漏路径、范围的不同特征,得到了各种影响因素对泄漏的作用。可为山地区域输油管道泄漏的抢险工作提供有效的参考。

China-Myanmar oil and gas pipeline in Southwest China guarantees the energy security of China.Due to poor geographical circumstance,the safety of pipelines is seriously threatened by natural disasters.After the oil pipeline is damaged,the rapid prediction of the crude oil leakage path and diffusion range is of great significance to the leakage rescue work.In this paper,the real mountain terrain is constructed based on the digital elevation model,the leakage path and diffusion range are described based on the fluid particle tracking method,and a fast leakage prediction method is proposed.By using this method to calculate the various working conditions of mountain pipeline leakage,the different characteristics of the leakage path and scope under various terrains are studied,and the effects of various influencing factors on the leakage are obtained.It provides an effective reference for the rescue work of oil pipeline leakage in mountainous areas.