Research Article
Risk Identification and Quantitative Evaluation Method for Asset Integrity Management of Offshore Platform Equipment and Facilities
Table 3
Evaluation criteria of the failure probability (
).
| | Quantitative score | Frequency description | Explain |
| | 5 | Very high | (1) The failure is likely to happen. | | (2) Annual occurrence probability (>10−2). | | (3) Records or experience in the industry shows that it has occurred in 0.5 years. |
| | 4 | High | (1) The failure is likely to happen. | | (2) Annual occurrence probability (10−3~10−2). | | (3) Records or experience in the industry shows that it has occurred in 0.5~2 years. |
| | 3 | Secondary | (1) The failure can happen. | | (2) Annual occurrence probability (10−4~10−3). | | (3) Records or experience in the industry shows that it has occurred in 2~7 years. |
| | 2 | Low | (1) The failure may not happen. | | (2) Annual occurrence probability (10−5~10−4). | | (3) Records or experience in the industry shows that it has occurred in 7~15 years. |
| | 1 | Very low | (1) The failure will hardly happen. | | (2) Annual occurrence probability (<10−5). | | (3) Records or experience in the industry shows that it has not occurred in 15 years. |
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