The SPS pipeline system is designed to exceed 50 years’ life.
The pipe wall structure and manufacturing process incorporates fibre optic cable as a spiral winding. Trials have shown that this measures changes in hoop stress in real-time, pinpointed to specific locations. The hoop stress variation pattern can then be used to determine changes having an impact on lifetime, such as ground movement, corrosion and pressure cycling.
A life prediction approach can be applied to those events that can contribute to known failure modes. Front end visualisation provides different users with real time information in the format of most use to them.