The technology of passing an ...

The technology of passing an intelligent or callipar pig through the pipeline will reveal many other aspects as well like Corrosion, Erosion, Ovality, Thinning, profile of change in diameter across, location of changes etc. The agencies who are specialized in this will help you.

This technique is extensively used in Oil & Gas sector for Crude Oil & Product pipelines. There is need for pig launching & receiving  faclity. In oil & Gas sector its a permanent feature. In your case it can temporarily done by the party engaged for the purpose.