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Husky Refinery incident sparks critical PSM lessons

 

October 20, 2024

 

 

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On April 26, 2018, a devastating explosion rocked the Husky Energy Refinery in Superior, Wisconsin, injuring 36 workers and causing $550 million in damage. The incident serves as a reminder of the importance of robust process safety management in the oil and gas industry.

 

What Went Wrong?

 

Here are some key causes behind this catastrophic event:

 

  • Lack of shutdown procedures. Husky Energy failed to implement critical safety measures during maintenance, including not creating a steam barrier.
  • Equipment failure. A severely eroded slide valve allowed air to mix with flammable hydrocarbons, leading to an explosion.
  • Insufficient training. Workers lacked adequate knowledge on how to safely shut down operations.

 

Critical PSM lessons learned 

 

The Husky Refinery incident offers valuable insights for improving process safety management:

 

  • Implement robust shutdown procedures. Develop specific safety measures and procedures for critical periods like maintenance.
  • Comprehensive training is key. Prioritize regular refresher courses, hands-on practice, and ensure experienced personnel are available during operations.

 

Don't repeat the mistakes 

 

The Husky Refinery incident highlights the importance of:

 

  • Regular equipment inspections
  • Prompt addressing of known issues
  • Learning from past incidents
  • Comprehensive emergency preparedness
  • Maintaining process safety knowledge transfer and sharing

 

Let's not get complacent and learn from past incidents to prevent future tragedies. 

 

 

Sources and additional reading: 


https://www.fox21online.com/2022/12/30/csb-releases-its-final-report-on-what-led-to-husky-refinery-explosion-in-2018/

 

https://www.thechemicalengineer.com/news/csb-identifies-six-key-safety-issues-that-led-to-2018-superior-refinery-explosion/

 

https://www.safetynewsalert.com/articles/safety-issues-husky-superior-refinery-explosion/

 

https://www.wpr.org/history/conflicts-disasters/federal-agency-releases-findings-superior-refinery-explosion-husky-energy

 

https://www.startribune.com/husky-oil-refinery-explosion-could-have-been-avoided-feds-say-in-final-report/600240542

 

https://www.mprnews.org/story/2018/08/02/agency-refinery-fire-caused-by-blast-debris-superior-wis-husky

 

https://www.csb.gov/-final-report-into-2018-husky-superior-refinery-explosion-and-asphalt-fire-in-wisconsin/

 

https://en.wikipedia.org/wiki/2018_Husky_Energy_Refinery_explosion