The Failure Files: The Dangers of Unrepaired Dents
11/15/23 • 44 min
This story begins in 2015 in Centreville, Virginia when a restaurant employee dials 911 to report a strong gas smell in the area. Days after that first phone call, a pipeline operator discovers that the leak source is one of its 36-inch diameter pipelines. After excavating around a dent found from a previous inspection, they found contaminated soil and the leak. Why did the operator fail to determine the leak, and how have regulations changed since? Listen to this episode of Pipeline Things to find out.
Highlights:
- Where do dents rank on the threat spectrum? How do we know when one poses a significant threat?
- What is fatigue cycling? Why is it important to consider when excavating?
- What strategies do we have today and what lessons can we learn to prevent history from repeating itself?
- What effect did this failure have on regulations that liquid and gas operators contend with today?
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Pipeline Things is presented by D2 Integrity and produced by ADV Marketing.
D2 Integrity (D2I) is providing this podcast as an educational resource, but it is neither a legal interpretation nor a statement of D2I policy. Reference to any specific product or entity does not constitute an endorsement or recommendation by D2 Integrity. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by D2I employees are those of the employees and do not necessarily reflect the view of D2I or any of its officials. If you have any questions about this disclaimer, please contact Sarah Roberts at [email protected].
This story begins in 2015 in Centreville, Virginia when a restaurant employee dials 911 to report a strong gas smell in the area. Days after that first phone call, a pipeline operator discovers that the leak source is one of its 36-inch diameter pipelines. After excavating around a dent found from a previous inspection, they found contaminated soil and the leak. Why did the operator fail to determine the leak, and how have regulations changed since? Listen to this episode of Pipeline Things to find out.
Highlights:
- Where do dents rank on the threat spectrum? How do we know when one poses a significant threat?
- What is fatigue cycling? Why is it important to consider when excavating?
- What strategies do we have today and what lessons can we learn to prevent history from repeating itself?
- What effect did this failure have on regulations that liquid and gas operators contend with today?
Connect:
Be sure to subscribe and leave a comment or rating!
Pipeline Things is presented by D2 Integrity and produced by ADV Marketing.
D2 Integrity (D2I) is providing this podcast as an educational resource, but it is neither a legal interpretation nor a statement of D2I policy. Reference to any specific product or entity does not constitute an endorsement or recommendation by D2 Integrity. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by D2I employees are those of the employees and do not necessarily reflect the view of D2I or any of its officials. If you have any questions about this disclaimer, please contact Sarah Roberts at [email protected].
Previous Episode
The Failure Files: Critical Consequences
Welcome back to this special season of Pipeline Things: The Failure Files, where Rhett and Chris delve into significant pipeline incidents throughout history and break down the NTSB failure reports that accompany them.
Today's episode focuses on two different catastrophes on opposite sides of the country. The first begins on the morning of August 19, 2020 in Carlsbad, New Mexico, where a 30-inch natural gas pipeline ruptured and ignited, creating a 51-foot crater about 113 feet along the pipe that burned for 55 minutes. The second takes place twelve years later in Sissonville, West Virginia when a 20-in natural gas transmission pipeline operated by Columbia Gas Transmission failed. Listen to learn how these events are related, the major causes, notable outcomes, prevention strategies, and how the findings from this report have affected recent gas pipeline regulations.
Highlights:
What should modern-day IMPs account for? Is there a reason to expand beyond prescribed actions in regulation, and if so, how far?
What procedures and regulations do we have today as a result of the findings in this NTSB report?
How did these two incidents affect the definitions of HCAs and MCAs?
Connect:
Be sure to subscribe and leave a comment or rating!
Pipeline Things is presented by D2 Integrity and produced by ADV Marketing.
D2 Integrity (D2I) is providing this podcast as an educational resource, but it is neither a legal interpretation nor a statement of D2I policy. Reference to any specific product or entity does not constitute an endorsement or recommendation by D2 Integrity. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity that they represent. Views and opinions expressed by D2I employees are those of the employees and do not necessarily express the view of D2I or any of its officials. If you have any questions about this disclaimer, please contact Sarah Roberts at [email protected].
Next Episode
The Failure Files: What on Earth is Happening with Geohazards?
In the words of Dr. Dave, there are two kinds of operators – those that have recognized the threat of geohazards and those that haven’t.
To wrap up The Failure Files season, Rhett and Chris discuss a 2020 event in Hillsboro, Kentucky related to geohazard threat management. More operators are becoming aware of the threat of geohazards and working to implement proper management techniques. Rhett and Chris discuss what those proper management techniques look like, and what integrity managers should consider.
Highlights:
- What makes geohazards different from other threats we’ve discussed in this arc?
- How do we assess for geohazards?
- What are common geohazard misconceptions?
- What are the key takeaways from this incident in Hillsboro and the NTSB report that followed?
Connect:
Be sure to subscribe and leave a comment or rating!
Pipeline Things is presented by D2 Integrity and produced by ADV Marketing.
D2 Integrity (D2I) is providing this podcast as an educational resource, but it is neither a legal interpretation nor a statement of D2I policy. Reference to any specific product or entity does not constitute an endorsement or recommendation by D2 Integrity. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by D2I employees are those of the employees and do not necessarily reflect the view of D2I or any of its officials. If you have any questions about this disclaimer, please contact Sarah Roberts at [email protected].
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