漠大原油管道SCADA通讯中断原因及应对措施

漠大原油管道SCADA控制系统通讯中断频繁,严重威胁管道的安全运行。基于漠大原油管道通讯中断数据,统计分析了通讯中断时长、通讯中断类型的比例分布特性,结果表明,时长2～12 h的通讯中断频次最高,占总中断次数的44.3%。探讨了漠大原油管道通讯中断原因,其中天气因素与设备故障是导致通讯中断的主要因素,共导致了74.4%的通讯中断时长。为了降低通讯中断频次,结合漠大原油管道的运营现状,提出了4项管理措施：加强天气监控及现场作业管理,做好应急预案;完善管道保护程序;积极开展维护修复工作;加快推进加格达奇以南光缆割接与测试工作。

Reasons and solutions of SCADA communication interruption in Mohe-Daqing Crude Oil Pipeline

Frequent interruption of SCADA system communication in Mohe-Daqing Crude Oil Pipeline posed severe threats to its safe operation. Based on the communication interruption information of Mohe-Daqing Crude Oil Pipeline, the proportional distribution and characteristics of communication interrupt duration and type are statistically analyzed. The results show that the commtmication interruption of 2 hr to 12 hr is highest in frequency, accounting for 44.3% of the total number of interruption. Communication interruption reasons of Mohe-Daqing Crude Oil Pipeline are discussed, of which weather factors and equipment failure are the main ones, resulting in a total of 74.4% communication interruption duration. In order to decrease the communication interruption frequency, 4 management measures are put forward according to the operation status of the pipeline, reinforce weather monitoring and in-site management, make contingency plan, complete the pipeline protection procedure, carry out maintenance and repair work actively, and promote cutting and connecting and testing of fiber optic cable for south Jiagedaqi.