Background: Job Overview
As per the Client’s inspection/maintenance team, their major concern was to evaluate the integrity of Buried LPG Bullet.
The Acoustic Emission Testing (AET) of in-service LPG Bullets was performed whilst operating at ambient temperature by Arise Global Pte Ltd.
- Few access points were excavated to mount the sensors on the bare metal surface, using magnetic holders and couplant. This allowed appropriate sensitivity and reliability of installation.
- Data was collected/monitored at different pressure levels during loading and hold periods.
- AE signal detection in different stages was performed for Active corrosion/Pitting/Leakage/Crack/stress activity detection.
- AE data recorded during the examination was analysed using detailed multistage corroborative analysis procedures.
Inspection Equipment Details
| Item No | Bullet X |
| Bullet Diameter (ID)/ Length (L) | 5 m/ 59.2m |
| Shell Thickness & Material | 38mm/ SA 516 Gr.70 |
| Built Year | 2005 |
| Liquid inside the bullet | LPG |
| Liquid level during the time of inspection | 70% |
| Operating Pressure | 12.89 Barg |
| Operating Temperature | 17.2 ˚C |
Testing Equipment Details
AE Inspection Results Analysis
Sample Source Localization Diagram and Table for Buried LPG Bullets
Conclusion
BULLET ID: Bullet X
