Summary of MFL Detection Capabilities
MFL is not designed to find all types of anomalies in pipelines, but it can sometimes find the following metallurgical and geometric conditions:
|
Type of Anomaly |
MFL Capabilities |
|
Metal Loss (corrosion and gouges) |
Generally well suited. |
|
Metallurgical (hard spots, inclusions, laminations, and weld porosity) |
Occasionally found. |
|
Cracks (axial) |
Not well suited. |
|
Cracks (circumferential) |
Occasionally found. |
|
Dents and buckles with or without metal loss |
Detectable when sensors lose contact with the pipe wall. |