Assessing the Risk of Squeezing Activities and Reviewing the Impact of Squeezing Polyethylene Pipe
Proper squeezing is crucial for temporary pipeline isolation without compromising the pipe's integrity. It ensures that the PE pipe maintains its pressure-bearing capability and resilience to external stresses. On the contrary, improperly executed squeeze-offs can introduce flaws such as stress concentration, micro-cracks, or even significant deformation. These defects not only weaken the pipe's structure but also elevate the risk of failure under operational conditions.
Performing a risk assessment of the squeezing procedure through the "Strength of Defenses" model enables a comprehensive understanding of the safeguards against operational hazards. This model assesses the effectiveness of preventive and mitigative controls established to protect the integrity of PE pipes during isolation. By evaluating the robustness of these defenses, organizations can gauge the likelihood and potential impact of isolation-related failures.
Comparing this risk assessment with those of other isolation methods, like stopples or valves, using the same "Strength of Defenses" model, provides insights into the relative safety and reliability of each method. This comparative analysis helps in identifying the most suitable isolation technique that aligns with an organization's risk tolerance and operational requirements. It highlights the importance of selecting an isolation method that not only minimizes operational disruptions but also ensures the long-term integrity and safety of the pipeline infrastructure.