THE METHODOLOGY OF ASSESSMENT OF ECOLOGICAL RISKS IN OIL AND GAS PRODUCING AND CHEMICAL COMPLEXES

Currently, oil and gas producing and chemical complexes are the most developing complexes and contain a great quantity of equipment that may cause risk. Risks formation is possible at any stage of life cycle of the process and equipment. Risks nature is currently classified by the sources of origin, consequences impact, and risk frequency nature. The authors attempt to identify risks influencing the environment not taking into account the manifestation at the stage of life cycle.

The preliminary identification of risks that may arise during the process of operating the equipment, allows carrying out the preventive measures to mitigate the risk of their occurrence and the consequences of their implementation. The influence of oil and gas producing industry on the environment has many factors. These are final land allocation, green cover pollution, the atmospheric emissions, and the discharges into water bodies.

The study uses the systems approach to design the methodology of assessment of environmental risks of technical objects. A systems approach allows implementing the sequential actions for risks prevention, preparing risk register, identifying hazards, analyzing risks, applying methods, techniques, and tools for risk mitigation at the objects. The methodology developed on the basis of systems approach can be universal to implement the procedures for risk assessment and prevention, irrespective of risk nature (technology-related, industrial, environmental, infrastructure). The existing risk assessment methods are universal and not adapted to the specific industrial facilities. The study of methods’ applicability in the risk assessment process allows identifying methods for specific goals and objectives and applying them without their further study and implementation at a specific site.