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Metal loss - Pipeline defects


Figure 1: Metal loss.

Defect name: Metal loss
Record No.: 2745
Type of defect (Internal/Surface): Surface
Defect classification: Other defects
Steel name: Steel
Steel composition in weight %: No data.
Note:  Pipeline operators typically use MFL to find metal loss due to corrosion or gouging. Corrosion is wastage or thinning of the pipe wall due to a chemical or electrochemical attack. Common forms of corrosion include external, internal, pitting (internal or external), selective seam corrosion, and stress corrosion cracking. Corrosion is found when an MFL tool measures a local change in the magnetic field.
Reference: Not shown in this demonstration version.