• Description

    Around the world, vast networks of pipelines transport natural gas and liquid petroleum from the wellhead to end users. Safe and successful pipeline operation depends upon owners understanding the condition of their pipelines and identifying, assessing, and mitigating threats that could lead to loss of containment. Among the leading causes of eventual pipeline failure are third-party mechanical damage – including dents and gouges from typically unintentional contact with excavation equipment – and corrosion leading to metal loss.

    Magnetic flux leakage (MFL) is one of the most common non-destructive inspection methods for providing data about pipeline corrosion and pitting. An inline inspection (ILI) tool traverses the pipeline, detecting variations in magnetic field that imply metal loss. However, the parametric relationship between the magnetic field response and the size of metal loss defects is complex and depends on many factors, including pipeline material properties (grade, dimensions, etc.), wall thickness, magnetic field strength, and even the size and speed of the ILI tool.

    To accurately understand flux leakage response in the field relative to pipeline metal loss, T.D. Williamson (TDW) utilizes Infolytica MagNet modeling software By pairing MagNet Transient 3D with Motion dynamic simulation modeling with laboratory test data, TDW has increased performance analysis accuracy for existing tools and developed predictive models for the performance of concept tool designs. Confidently predicting magnetic field response for concept designs gives TDW the ability to iterate across design parameters quickly and efficiently, and accelerate its research and development (R&D) efforts.

    This presentation will provide an overview of advances in the use of Infolytica MagNet software for predicting dynamic flux leakage field response near pipeline metal-loss features.

  • What problems were resolved?

    TDW has been able to correlate Infolytica MagNet simulation models of complex dynamic magnetic response to ‘real world’ tool data. The simulation capability allows TDW to quickly and efficiently iterate across design parameters without incurring significant material cost and time.

  • Technical Level


Matthew Romney

Matthew Romney – T.D. Williamson

Matthew Romney is a senior mechanical engineer at T.D. Williamson (TDW). He obtained his Bachelor of Science in Mechanical Engineering from Arizona State University and his Master of Science in Mechanical Engineering from the University of Utah. More recently, he was certified as a Design for Six Sigma Black Belt. He currently leads the magnetic analysis and design team at the TDW Global Pipeline Integrity office in Salt Lake City, supporting the development of pipeline inspection tools.