Introduction – Why FFS? An alternative to temporary repairs
FFS – The basic layout of API 579 – Component Types and Assessment Levels
Understanding the method used – Accuracy/Tolerances/Resolution
How Inspection coverage/technique influences FFS
Effort verses Benefit
The CONC specified for a 10” Sch 120 (21.4mm nom.) HP 2 Phase Flowline was 15.76mm,
A number of fittings, Tees & Elbows, were selected for inspection due to issues with solids in line and the threat of erosion,
2013 inspection shows 12.2mm wall loss on test manifold. Line 10” Sch 160 (28.58mm nom.)
Line also reported to have active internal corrosion
Water Injection pipework suffering for heavy and aggressive internal corrosion
Operating at 3100 psi
Line sizes varied from 4”, 6”, 8”, 10” & 12” so not possible to assess “worst case Scenario”