In a review of excavations triggered by EMAT results, about 80% of excavations revealed either a) no present anomaly features or b) anomalies unrelated to cracking. But we know the whole story is more complicated than that.

Not all EMAT technology works the same way, and this gap highlighted an opportunity for ILI vendors to step in and serve the market. Working hand in hand with an operator, NDT Global has developed a high-resolution inspection tool for gas systems that uses guided ultrasonic waves to detect crack features. Their PPIM 2026 paper, Development and Validation of a Novel Gas Crack Detection Tool Using Guided Waves, highlights the development and validation of the tool.

In this episode of Pipeline Things, Rhett and Christopher are joined by Michael Haas, Head of Sensor & Measurement Technology, and Rogelio Guajardo, Director, Product Management, of NDT Global, as they dive into the specific capabilities of this new technology, called CIGMA-x (also referred to as CIGMA).

Highlights:

• Exploring how EMAT shortcomings shaped this new technology development
• Discussing the 30-inch gas test loop, specially designed to test CIGMA-x capabilities with simulated features
• Breaking down primary tool capabilities and major findings from full-scale testing

References:

1. Hubert, D. Bag, M. Haas, R. Guajardo and T. Hennig, "Development and Validation of a Novel Gas Crack Detection Tool Using Guided Waves," in Pipeline Pigging & Integrity Management, Houston, 2026.
2. Hubert, T. Hennig, M. Chandrasekaran, K. Baraniecki and O. Shabarchin, "Closing the Gap on Crack Detection for Gas Transmission Pipelines," in 15th International Pipeline Conference (IPC2024), Calgary, Alberta, Canada, 2024.

Connect:

Rhett Dotson  

Christopher De Leon  

Michael Haas

Rogelio Guajardo

D2 Integrity

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