穿越河流段输油管道环境风险评估及防控措施

Environmental Risk Assessment and Control Measures for Oil Pipelines Crossing the River Section

摘要: 识别并有效防控输油管道穿越河流段的环境风险一直是管道管理的重点工作，本文以兰成渝分公司输油管道广元段为例，评价输油管道在用阶段的失效可能性，量化分析最大泄漏量和现有应急管理水平条件下溢油事件对下游环境风险受体造成的影响，综合考虑溢油事故发生的可能性及事故发生后可能造成的环境后果建立输油管道穿越段的环境风险评价体系。最后结合环境风险评价结果及穿越段实际情况提出分级拦截布控措施，为输油管道的风险控制及应急处理提供技术支持。

Abstract: It has always been the key of pipeline management that how to identify and effectively prevent the environmental risk of the oil pipeline crossing the river. In this study, taking Guangyuan section of Lan-Cheng-Yu product pipeline as an example, the failure possibility of the oil pipeline in the use stage was evaluated. The impact of oil spills on downstream environmental risk receptors under the conditions of maximum leakage and existing emergency management level was quantitatively analyzed. Then, considering the possibility of oil spill accidents and the possible environmental consequences, the environmental risk assessment system of the oil pipeline crossing section was established. Finally, combined with the results of environmental risk assessment and the actual situation of the crossing section, hierarchical interception and control measures were proposed to provide technical support for the risk control and emergency treatment of the oil pipeline.