Project Description
Natural Period Monitoring
The scope of work consisted of developing a methodology for extending the lives and optimizing structural surveys of fixed oil platforms. Our model calibration method used natural period data obtained from field monitoring and resulted in a 30% overall decrease in the number of joints that need to be inspected.
Client: Genesis Energies
Final client: Petrobras
Monitoring Results
Equipment Installation
Model Calibration
| Original Model Natural Periods (s) | Messured Natural Periods (s) | Calibrated Model Natural Periods (s) | |
|---|---|---|---|
| First Mode | 3,317 | 3.03 | 3.04 |
| Second Mode | 3,074 | 2.63 | 2.81 |
| Third Mode | 2,147 | 2.04 | 1.96 |
| Original Model Natural Periods (s) | Calibrated Model Natural Periods (s) | |
|---|---|---|
| First Mode | 3,317 | 3.04 |
| Number of joints with fatigue life below 100 years | 3,074 | 2.81 |
30% overall decrease in the number of joints that need to be inspected.