Type | Crack confined inside the pipe body. |
Location | 12 technical hours from the pipe, at 40 mm of field weld. |
Dimensions | 11.43 mm of circumferential length and 0.077” of radial length, Figure 11. |
Evaluation | Crack mechanics: Crack located at the “no failure zone”. The failure stress is 47% of the applied stress. |
Recomendation | Repair with a type B sleeve, designed to contain the pipeline operation pressure in the case of a leak or the possible replacement of the pipe. |
Performed action | Pipe replacement. |