December 22, 2020
DPM-EduSeries Post 4: Special End Area (SEA) Inspection
For our latest post in our DPM-EduSeries, we will be looking at Special End Area (SEA) inspection!
SEA inspection is performed to detect imperfections on the pipe ends not inspected by automated equipment due to the upset ends. Pipe ends are inspected using the wet Magnetic Particle Inspection (MPI) method. DP-Master uses the continuous wet MPI method whereby the magnetic particles are applied during the application of magnetizing current and stopped shortly before the current is stopped. The ends are then moved into a dark room and inspected using a blacklight to check for indications. When there is a discontinuity on the surface, there would be magnetic flux leakage and the magnetic particles applied would be attracted to the discontinuity, producing an indication which can be seen under a blacklight. Tubes that pass the SEA inspection are ready for friction welding to the tool joint.
Stay tuned to our next post in our DPM-EduSeries as we move on to Friction Welding!