Comparison Between Acoustic Emission In-Service Inspection and Nondestructive Testing on Aboveground Storage Tank Floors

In-service inspection of aboveground storage tanks with acoustic emission technique is accepted by petrochemical industry more and more in the world. PetroChina Pipeline R&D Center has inspected dozens of large storage tanks with acoustic emission technology to evaluate the corrosion situation of tank floors. In this chapter our method is introduced. And the comparison between the results of acoustic emission testing and conventional NDT is described in detail in order to verify the effectiveness and reliability of AE tank floor inspection. Some typical examples are demonstrated.