Link to the Case Study: https://23545511.fs1.hubspotusercontent-na1.net/hubfs/23545511/MMT_Case_Study_HSD_Seam_Toughness.pdf
A Canadian pipeline operator identified cracks and flaws during a routine In-Line Inspection (ILI). To determine the appropriate course of action, the operator needed to estimate the fracture toughness of these flaws to assess if repairs or replacements were necessary
Even small cracks and flaws in pipelines can pose significant risks to lives, property, and the environment. Pipeline failures can also cause costly shutdowns and disrupt the flow of essential resources. Early detection and accurate assessment of these flaws are crucial for preventing such disasters.
Traditional methods for evaluating pipeline flaws involve cutting out sections of the pipe, which is both disruptive and expensive. The customer contacted MMT looking for a more effective alternative.
The proposed solution was an HSD Plus (Hardness, Strength and Ductility) test with a seam toughness report. Using its patented frictional sliding technology, MMT collects comprehensive data without interrupting operations.
In addition to the pipeline’s yield strength, chemistry, and microstructure, this approach provided a clear picture of the seam CVN toughness, enabling informed repair and maintenance decisions. Critically, MMT is the only technology provider that uses this comprehensive data set to calculate strength values and the only technology capable of determining seam toughness.
Around 6 business days after testing was completed, a detailed HSD Plus report was delivered, providing a deeper understanding of the pipeline’s condition and valuable insight for future maintenance planning, minimizing risk, cost and downtime, and ensuring pipeline safety and efficiency.
MMT’s testing revealed that the pipeline had a higher toughness value than initially anticipated. This meant the cracks and flaws were not critical and could be addressed with lesser repairs, such as wraps.
As a result, the customer achieved several benefits, such as avoiding shutdowns and unnecessary repair or replacements, resulting in significant time, cost, and resource savings. Most importantly, MMT’s testing ensured continued safe and efficient pipeline operations by providing the data needed to make informed decisions.