Overview
At an LNG facility in Western Australia, through-wall defects were discovered on service water lines. To avoid shutdown of the lines, a repair solution was required that could address the defects while
encompassing the existing temporary repairs.
Scope
The line had the following specifications:
| Structure | Service water lines |
| Surface Preparation | ST3 |
| Design Pressure | 10.0 bar |
| Design Temperature | 65ºC |
| Application Temperature | 20ºC - 40ºC |
| Design Life | 19 years |
| Repair Length | 550mm |
| Pipe Diameter | 114mm |
| Geometry | Wrap over pipe and flanges |
| Damage Mechanism | Internal corrosion, perforation |
| Defect Details | 250mm axial, fully circumferential, through-wall |