摘要
为确保清管作业安全,有必要在作业前进行充分的风险识别,并制定相应的防范措施。以平湖油气田14″(1″=25.4 mm)天然气海底管道清管作业为例进行风险分析,结果表明:风险主要集中在管线本身及管线设备、管道内积液、清管器、人、清除的污物、自然环境等方面。针对这些风险,提出了相应的应对措施,包括仔细查阅管道信息档案,更换管线设备,增加防卡装置,预测积液量并制定积液处理方案,合理选择清管器,渐进式清管,进行专项培训,规避极端天气作业等。
In order to assure the safety of pigging operation, risk analysis and precautionary measures should be taken. Pinghu offshore oil & gas field's 14-inch(1 inch=25.4mm) natural gas subsea pipeline's pigging project was taken as an example, possible risks mainly concentrated on the line itself and its accessories, loading liquids, pigs, human, removed dirt, natural environment, etc. Corresponding measures were proposed, including carefully reviewing pipeline information files, replacing relevant equipments, installing anti-blocking devices, predicting volume of loading liquid, choosing reasonable pigs, progressive pigging, conducting special training, avoiding extreme weather, etc.
出处
《天然气与石油》
2016年第5期6-10,共5页
Natural Gas and Oil
关键词
天然气海底管道
清管
风险分析
应对措施
Subsea gas pipeline
Pigging
Risk analysis
Corresponding measures
