Case Study: Description and Analysis for Corrosion Main Features

The proposed approach shown in Part I will be implemented in a real case study based on the results from two consecutive In-Line Inspections 2 years apart. The inspections were determined using an MFL tool at an underground pipeline that includes an aerial section due to a river crossing. This chapter presents the main parameters of the case study, including the type of soil and the detected corrosion defects. Besides, this chapter assesses the main extent of the metal loss based on three scales described in Chapter 6 : A full-scale using the entire records; a medium-scale using a partition of the records in the axial or circumferential direction; and finally, a small-scale assessment that focuses on particular defect locations, orientation, and separation.