Reduction of Operational Risk of Pipelines Using the Bow Tie Methodology in the Implementation of the Dynamic Risk Management Strategy

Introduction

This paper examines the dynamic strategy implemented to manage risks in a 4" gas pipeline, highlighting the key application of the Bow Tie Methodology. The central goal is to effectively reduce operational risk in the pipeline, addressing both environmental and structural integrity aspects.

Implemented Risk Reduction Measures

• Execution of Biweekly Cleaning Runs: Regular runs are performed to ensure optimal pipeline operation, minimizing the potential for residue accumulation that could compromise its integrity.

• Implementation of ILI Tool Inspections: Routine inspections using In-Line Inspection (ILI) tools identify potential impacts on pipeline integrity, facilitating prompt attention to any detected issues.

• Development and Execution of the IPMP Plan: This comprehensive plan covers everything from monitoring operational conditions to implementing proactive measures to address potential risks.

• Performance of Soil Resistivity Analysis: Periodic soil resistivity analyses contribute to assessing and mitigating environmental impacts that could affect pipeline integrity.

• Conduction of DCVG Studies: Studies involving Direct Current Voltage Gradient (DCVG) help identify and address potential soil impacts that could compromise pipeline safety.

• Cathodic Protection Evaluation: A thorough evaluation of the cathodic protection system is conducted, considering native potentials and adjusting measures as necessary.

• Visual Inspections and Physicochemical Monitoring: Detailed inspections in above-ground and underground areas, combined with regular physicochemical monitoring, ensure early detection of potential issues and compliance with quality standards.

Conclusion

In conclusion, the implementation of this dynamic strategy, supported by the Bow Tie Methodology, has proven effective in reducing operational risk in the 4" gas pipeline. The combination of regular inspections, environmental analyses, and proactive measures has strengthened the safety and integrity of the infrastructure, successfully lowering the operational risk from high to medium. This comprehensive approach not only addresses existing threats but also lays the foundation for adaptable risk management in the face of future operational changes.