Plant Integrity Limited inspected and assessed the integrity of the aerial river crossings for the 8” condensate line a client in New Zealand.
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These regions were ideal for Guided Wave Inspection due to the areas having limited access for conventional non-destructive localized inspection. In addition, the pipe was a long straight length and Guided Waves provides 100% volumetric coverage of the pipe wall.
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The guided wave system was used to inspect the aerial river crossings. Focus is an externally applied inspection tool which can screen pipelines (and process piping) for internal and external corrosion. Pipelines can be tested in service, avoiding the need to shut down and stop production for inspection. A wide range of pipe sizes can be inspected, from 2” to 48” nominal diameter.
Pipe Line Inspections
Location photo of a typical aerial river crossing inspected
The widest of the aerial river crossings inspected was
65m in length after which the line entered a buried section. The Focus system utilizing the 5 ring torsional tool was used in this particular case and the results show that whole crossing was inspected from one side of the crossing plus 20m -25m inspection of the buried and wrapped section was also covered.
The aerial river crossings inspected during this scope were found to be in good condition and no areas required further investigation. Regular inspections of this area are planned to ensure that This is the second inspection of this type that Plant Integrity has conducted for its client in New Zealand. The data collected shows that this type of application is well suited for inspection with wave ultrasonic inspection)
A-scan image collected during the inspection