Cyber-physical system safety for oil and gas storage and transportation: connotations and key technologies

With the deep integration of informatization and industrialization, an intelligent and digital cyber-physical system has been developing for traditional oil and gas storage and transportation. The computing, communication and control technologies empower the oil and gas storage and transportation industry, and also bring the information security issues, which will be developed into complex issues regarding comprehensive cyber-physical system safety, resulting in problems such as unclear superimposed risk mechanism and difficulties in comprehensive state evaluation. Therefore, it is urgent to change from the traditional physical safety analysis of engineering failures to the comprehensive risk analysis of cyber-physical integration. For this reason, this paper analyzes the current safety status and connotation of the cyber-physical system of oil and gas storage and transportation, establishes the cyber-physical safety theory and technology system for oil and gas storage and transportation focusing on the heterogeneous integration of functional safety and information security, explores the risk formation and evolution mechanism and risk characteristics of cyber-physical system, puts a focus on the research and application of key technologies such as fusion modeling, situation awareness, collaborative assessment, anomaly alert, and security defense, and outlook the trending study of cyber-physical system safety, thus providing a reference for pushing the research of cyber-physical system safety.