Author: Rogelio Guajardo, Head of Analysis, Ultrasonic Cracks
NDT Global inspects several vintage pipelines that have been in the ground for 40 years or longer. Older pipelines typically contain multiple manufacturing related anomalies such as hook cracks in the long-seam area. This area happens to be the weakest part of the entire pipeline, so it is crucial to be able to preciselyand size features that exist in vulnerable zones.
In the conventional ultrasonicdetection technology, there are certain limitations that make it impossible to size hook cracks due to the complexity of their geometries.
When cracktechnology was first released to the market, was capable of accurately sizing cracks that were not tilted. During that time, it was simply enough to most of the immediate threats of pipelines. However, pulse-echo's detection and sizing capabilities reached its limits, and injurious features remained.
What was needed to detect these injurious features including manufacturing-related anomalies that have grown over decades? A new and improved technology was the only solution.
With enhanced capabilities in the Eclipse ultrasonic crack inspection tool, we can incorporate a technique that records two signals and three methodologies instead of one signal and one methodology. Let me explain.
When creating the Eclipse ultrasonic, our objective was to provide detailed information on at- features in at-risk areas. The Eclipse ultrasonic crack inspection tool analysis is performed in tandem, evaluating pulse-echo while also assessing signals. These signals complement one other, so when pulse-echo reaches its limits, the Eclipse ultrasonic crack inspection tool signal jumps in and picks up any lost depth. This ensures the depth for complex geometry features is recorded. The technological addition has immensely accelerated operators' standards throughout the industry.
Let's take a step back and reiterate the significance of this innovation. Prior to this advancement, we could identify aas -like but were unable to provide insight into the specifics of this crack-like feature. How do you prioritize a data list that simply says 'crack-like' features? It's nearly impossible.
With the Eclipse ultrasonic crack in their pipeline can be branching or hooked and see under the surface within that . With a subtype category, operators can have transparency into the real challenges of their pipeline and focus their efforts on the features that matter most., we can put our finger on exactly what features exist by providing sub-features. We can tell an that a
I recently had a conversation with anwho has been running our tools since 2009. We have analyzed large amounts of their data over time and we were discussing how we could leverage the Eclipse ultrasonic for a specific pipeline of theirs. Based on the historic data, it was clear that their features were not growing. So why would it be beneficial to run an Eclipse tool?
With Eclipse, this operator would be able to distinguish (out of their universe of features) the difference between each crack features, i.e. hook cracks versus lack of fusions. This allows them to incorporate this additional data point into their pressure calculations, ensuring they are taking the proper safety measures while simultaneously improving their overallprogram.
As we stand today, there are currently no assessments outside of NDT Global that are conducting a sub-type category analysis. The Eclipse ultrasonichas significantly increased the POX ( , identification, and depth sizing) standards throughout the industry and serves as motivation to continuously expand our on our capabilities.
If you'd like to learn more about the Eclipse ultrasonic crack inspection, feel free to send me an email at Rogelio.Guajardo@NDT-Global.com.