Risk identification for plugging leaks under pressure

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This post was last edited by Wise Ming on 2025-1-7 at 16:31. Identifying the risks associated with pressure-containing leak sealing operations is a crucial step in ensuring the safety of such tasks. Below are some key points related to risk identification: 1. Complex and variable operating conditions: Pressure-containing sealing and pressure-containing drilling operations are unconventional tasks that take place while industrial facilities and equipment are in operation; the operating conditions are complex and full of uncertainties, making these tasks difficult to carry out and increasing the associated risks. 2. Risks of fire, explosion, poisoning, asphyxiation, etc.: There are risks of fire, explosion, poisoning, asphyxiation, falls from heights, object strikes, electric shock, etc. 3. Working environment risks: No other operations should be carried out at the work site, below it, or within 30 meters around it ； Work should not be carried out in extreme weather conditions such as thunderstorms and heavy fog. 4. Requirements for special operations: GB 30871 requirements apply to the execution of special operations. 5. Job change management: Change management should be implemented when there are changes in job conditions, working environment, job content, job procedures, or personnel. 6. Material leakage risk: The common risk associated with pressure-sealing and pressure-opening operations is material leakage. 7. Risk of equipment deformation and seal tool failure: The risk of equipment deformation and seal tool failure due to excessive injection pressure. 8. Risk of crack propagation in the material at the leakage site: The risk that cracks in the material at the leakage site will continue to propagate. 9. Risk of unable to remove slices: The risk of being unable to remove slices during drilling under pressure. 10. Risk of collapse and fracture at the drilling site: There is a risk that the area where drilling takes place may collapse or fracture due to the weight of the drilling equipment. 11. Risk of equipment damage due to iron shavings entering the system: The risk that equipment may be damaged as a result of iron shavings entering the system. 12. Insufficient understanding of the condition of pipes or equipment: Before carrying out construction, it is essential to have an accurate understanding of key parameters such as the pressure and temperature of the pipes. If these values are incorrect or unclear, it may lead to the selection of inappropriate measures for sealing leaks, thereby creating safety hazards. 13. Improper operation: Plugging leaks under pressure requires strict adherence to operating procedures. Insufficient skills, lack of experience, or carelessness on the part of the operator can all lead to serious consequences. 14. Insufficient technical capabilities: Plugging leaks under pressure requires specialized skills and equipment. If the necessary technology is lacking or the equipment is outdated or damaged, leak sealing attempts may fail, and it may even lead to other safety issues.