GUIDED WAVE INSPECTION (GWI)
Guided Wave Inspection (GWI) is a non-destructive evaluation method that uses sound waves to detect corrosion or other damage along pipe walls.
This can help you identify metal loss areas, which are detected by a ring of transducers in a collar wrapped around the pipe. Computer control transducers generate low-frequency ultrasonic sound waves that are transmitted directly from the source, detecting and recording damage such as corrosion and erosion.
The results of this inspection can help you find opportunities for improvement in your assets’ condition and performance so that they can be better protected against further damage or failure.
Pipeline Inspection
Above ground, piping inspection is a critical part of the integrity management process, as it allows for the identification of metal loss, which may be caused by corrosion, erosion, and other damage mechanisms.
When it comes to inspecting your pipeline, there is no substitute for a guided ultrasonic long-range inspection (GWI).
Guided wave inspection (GWI) is a process that allows you to quickly and efficiently inspect your pipeline for metal loss.
We use the power of sound waves to create a detailed picture of your pipeline’s condition. The sound waves emit low-frequency travel through the pipe and are detected by transducers placed along its length. These transducers then send real-time data to our computer, allowing us to see areas where metal loss has occurred.
The computer records data about the amount of damage recorded during each pass through the pipeline, which can be used to determine corrosions. The Guided Wave Inspection (GWI) process is a non-destructive method of detecting metal loss areas in pipelines that must be replaced or repaired before they fail catastrophically or risk catastrophic failure or rupture when subjected to stress beyond their design limits.
This process can be performed from a single location while in service, lowering overall inspection and insulation costs.
Guided Wave Testing (GWT) is a method of assessing assets that is quick, accurate, and efficient for predictive maintenance, reduced environmental impact, and maximum asset life.
Advantages & Disadvantages
Advantages
- Long range inspection – has the potential to achieve hundreds of meters of inspection range.
- Limited access – insulated line with minimal insulation removal, corrosion under supports without need for lifting, inspection at elevated locations with minimal need for scaffolding, and inspection of road crossings and buried pipes.
- Data is fully recorded.
- Fully automated data collection protocols.
Streamline Inspection
Integrity, Reliability, Accuracy…..Streamlined.
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