Proceedings of the

The 33rd European Safety and Reliability Conference (ESREL 2023)
3 – 8 September 2023, Southampton, UK

Research on Multi-Factor Coupling Analysis and Risk Warning of Operation Activity in Petrochemical Enterprises

Xiaoyan Guoa, Xuyan Lib and Yunlong Wangc

State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering Co., Ltd., China.


The Operation activity has always been the biggest threat to the safety of petrochemical enterprises. There is continuous dynamic interaction at operation area among operators/supervisors, machine and tools, hazard materials and the environment. Abnormal changes in any factor may lead to accidents. However, failure sequence of operation risk prevention measures is disordered in the evolution of operation accident. Thus, traditional static or sequential risk assessment methods are not suitable for this field, which restricts the assessment and control of operation risk. Therefore, this paper uses System Dynamics to construct a multi factor coupling feedback model for operation risk identification firstly, and describes the coupling and interaction relationship within the subsystems and between subsystems. Secondly, key indicators and corresponding monitoring techniques are determined, i.e., operators' unsafe behaviors, gas leakage and so on. Finally, Bayesian theory is adopted to fuse multi-source information collected by the monitoring techniques, and then assessment operational risk. What's more, a hierarchical early warning rule is built to determine the priority of risk control. This method can guide the realization of operation risk intelligent management and control.

Keywords: Operation risk, System coupling analysis, Multi-information fusion, Monitoring and early warning.

Download PDF