Robust, Field-Ready, Inline Tool for the Accurate Measurement of Pipe Bending Stresses and Crack Detection

Throughout the United States massive fuel transport pipeline networks‒thousands of kilometers long‒ inevitably cross seismically active areas while potentially experiencing severe working environments, varied geoenvironmental conditions, and significant deformations during their service life. To minimize the risk of failure, pipelines are closely monitored utilizing in-line inspection (ILI) tools (commonly referred to as pigs). Current data provided by these devices may not accurately reflect the risk associated with mechanically damaged pipeline sections. In response, Creare proposes to develop, demonstrate, and commercialize a robust, field-ready ILI tool for the accurate detection of cracks, other anomalies, and quantification of bending stress. Creare’s tool integrates independent characterization approaches. Dual non-linear frequency ultrasound methods are utilized for crack detection, while flux-controlled Barkhausen techniques measure bending stresses. In Phase I, we plan to demonstrate the feasibility of both techniques in laboratory-scaled facilities. The Phase II project will conclude with a full-scale demonstration at the Pipeline Research Council International (PRCI) facilities; where we plan to invite key pipeline industry members. These demonstrations will provide evidence that our technology is ready to be transferred from a research and development prototype to a commercial ILI tool provider or pipeline inspection and maintenance company.