Clock Spring Pipeline External Corrosion Girth Weld
48” high pressure major oil export pipeline
40 C operating temperature
Extensive external corrosion over a complete 10m joint length also affecting a girth weld location.
Pipeline was grit blasted to a SA 2.5 surface preparation. Clock Spring was installed using a fully trained installation crew utilising the spool feeder technique. (A minimum of 6” clearance was available underneath the pipe).
The complete repair application was completed in 3 work shifts.
Extent of external corrosion and girth weld defect.
Repair installation process utilising the spool feeder.
Continuation of repair application, bridging of the girth weld can be seen in the foreground.
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