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.