Risk Analysis for Simultaneous Operation (SIMOPS) in the Mining Industry

This project consisted of evaluating the feasibility of starting up a specific industrial unit (called Unit A) simultaneously with the construction, assembly and commissioning process of another unit (called Unit B) in the same location. It is known that the start-up stage of an industrial unit poses greater risks of accidents. Furthermore, the areas adjacent to Unit A, considering the execution of works, present conditions of increased risk, due to the presence of people and temporary shelters that may be affected in the event of accidents.

The present case therefore consisted of analyzing engineering documents, collecting information through technical field visits and carrying out a Consequences and Vulnerability Study for accidental scenarios involving a large release of flammable product and/or explosion originating in the Unit. A, in order to identify the potential physical effects generated, in addition to calculating the extent of the damage at the level of coverage of each physical effect that could cause damage to people, the environment and/or facilities. Based on the analyzes carried out, control measures were proposed for the identified risks and points of attention, in addition to introducing the concept of SIMOPS (Simultaneous Operations) Assessment for activities involved in simultaneous operations.

As a result of the analysis developed, recommendations were proposed. Such recommendations were hierarchical, according to level of criticality. Additionally, procedures were listed that must be followed when carrying out construction and assembly activities at Plant B (with Unit A in operation).

Based on the results obtained and considering the implementation of all proposed recommendations in due time, it was possible to validate the possibility of carrying out construction and assembly services for Unit B, with Unit A in normal operating state.