国内外输油气站工艺管道试压标准差异分析

摘要

Domestic process pipeline pressure testing standards for oil and gas transportation stations were classified and assessed, with prompting the idea of adopting foreign standards to improve the domestic design and operating level of oil and gas transportation stations. The advancement of foreign process pipeline pressure testing standards for oil and gas transportation stations were systematacially expounded, including integration strength testing and leakage testing, or leakage testing alone for low operating pressure pipeline, and classification principle of process pipeline, and air inspection method and pressure reducing procedure during pressure testing, and pressure testing periods of process pipeline. In addition, advanced technology and construction cases of domestic and foreign process pipeline pressure testing for oil and gas transportation stations were also introduced, such as the determination of reasonable sustaining time based on leakage mathematical model, and the determination of air pressure testing damage radius based on high pressure air explosion energy calculation method, etc. Finally, by means of learning foreign standards, recommendations are made to raise the level of Chinese process pipeline pressure testing standards for oil and gas transportation stations.%梳理评价了国内输油气站工艺管道试压标准，提出了借鉴国外标准的先进理念，提高国内输油气站设计和运行水平的思路。国外输油气站工艺管道试压标准的先进性主要体现在以下几个方面：管道运行压力较低，强度试验和严密性试验合并进行，或者仅进行严密性试验；工艺管道划分原则；试压过程空气含量检测方法和降压程序；工艺管道试压周期等。此外还介绍了国内外关于输油气站工艺管道试压的先进技术和施工实例，包括利用严密性数学模型确定合理稳压时间；利用高压气体爆炸能量计算方法确定气试压损伤半径等。最后针对借鉴国外标准，提高我国输油气站工艺管道试压标准，提出了建议。