基于PHAST的储气库注采管道泄漏爆炸模拟分析

doi:10.11885/j.issn.1674-5086.2021.08.13.03

摘要/Abstract

摘要： 为提高地下储气库注采集输管道运行作业的安全性，针对管道泄漏爆炸伤亡危害事故的问题，基于储气库作业区现场生产特点，应用事故树法分析管道泄漏爆炸事故的主要影响因素；并采用PHAST软件模拟定量分析了注采气管道运行压力及管输介质对泄漏爆炸事故后果的影响，进行了事故的风险评估。结果表明，在给定的模拟参数下，管道事故的危害范围随管道运行压力升高而递增，气云扩散及爆炸冲击波形成的高危区域均较小；采用湿气输送模式的采气管线发生泄漏时，会造成喷射火及池火灾等多种火灾事故；风险评价曲线可直观地看出该储气库注采集输管道对井站周围企业人员、建筑以及储气库地面作业人员造成的危害。该研究结论可为储气库作业区进行应急预案体系建设及处置能力提升提供参考依据。

关键词: 应急安全, 注采管道, 故障树分析, PHAST, 泄漏, 模拟分析

Abstract: In order to improve the safety in operation of injection, production and gathering pipeline in underground gas storage, aiming at the problem of casualties caused by pipeline leakage explosion, based on the field production characteristics of the gas storage operation area, the main influencing factors of pipeline leakage and explosion accident were analyzed using Fault Tree Method. In addition, simulated by PHAST software, the effect of injection production pipeline operating pressure and pipeline transmission medium on the consequences of leakage and explosion accident was quantitatively analyzed, and risk assessment of the accident was carried out. It showed that under the selected simulation parameters, the hazard range of pipeline accidents increases with the increase of pipeline operating pressure, and the high-risk areas formed by gas cloud diffusion and explosion shock waves are both small. The leakage of gas flow pipeline with wet gas transmission mode will cause various fire accidents such as jet fire and pool fire. The risk assessment curve intuitively showed the harm caused by the injection, production and gathering pipeline of the gas storage to the enterprise personnel around the well station, buildings and ground operators of the gas storage. The research conclusions of this paper can provide a reference basis for the construction of emergency plan system and the improvement of disposal capacity in the operation area of gas storage.

Key words: safety in emergency response, injection production pipeline, FTA, PHAST, leakage, simulation analysis

中图分类号:

TE88

陈磊, 张哲, 张新鹏, 刘茜, 陈桂芳. 基于PHAST的储气库注采管道泄漏爆炸模拟分析[J]. 西南石油大学学报(自然科学版), 2023, 45(3): 131-142.

CHEN Lei, ZHANG Zhe, ZHANG Xinpeng, LIU Qian, CHEN Guifang. Leakage and Explosion Simulation Analysis of Injection Production Pipeline of Gas Storage Based on PHAST[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2023, 45(3): 131-142.

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