The procedure of comprehensive security assessment of oil and gas sector facilities

Addresses the problem of comprehensive security assessment of oil and gas industry facilities under conditions of multi-level regulatory governance and simultaneous application of requirements from different regulators. It is shown that a fragmented approach to information, physical, industrial, and environmental security complicates the formation of an integrated quantitative assessment of the actual security level and reduces the effectiveness of managerial decision-making. A formalized approach to security assessment is proposed based on a system of partial security indicators reflecting the degree of compliance with regulatory requirements for the main types of security. A mechanism for aggregating partial indicators into security-type indicators and an integral security indicator of the facility is developed, taking into account their relative significance. To ensure logical and formal consistency between regulatory requirements, indicators, and assessment results, an ontological model oriented toward supporting the quantitative security assessment procedure is applied. The proposed approach makes it possible to obtain an integral quantitative assessment of the security level of an oil and gas facility, ensure traceability of assessment results to regulatory requirements, and use the results for security state analysis and managerial decision support. The results of the study can be applied in the development and improvement of security management systems at oil and gas enterprises.