The evaluation index system of the submarine pipeline oil spill is shown in Table 3.
The index system of risk assessment about submarine pipeline oil spill
| First-grade . | Second-grade . | Third-grade . |
|---|---|---|
| Pipeline corrosion | External corrosion | Environmental corrosion |
| Cathodic protection | ||
| Pipeline property | ||
| Stress corrosion | ||
| Number of years | ||
| Internal corrosion | Fluid properties | |
| Internal corrosion protection | ||
| Age and corrosion detection | ||
| Fatigue aging | Pressure safety factor | |
| Pipe diameter | ||
| Pipeline life | ||
| Wave current scour | ||
| Mitigation measures | ||
| Nature break forces | Soil movement | |
| Extreme weather | ||
| Third-party damage | Overburden condition | |
| Water activity level | ||
| Preventive measures against damage | ||
| Identification of the sea area around the pipeline | ||
| misoperation | Safety check | |
| Technological procedure | ||
| Safety record | ||
| Training situation | ||
| Comprehensive quality of personnel | Business capability | |
| Sense of responsibility |
| First-grade . | Second-grade . | Third-grade . |
|---|---|---|
| Pipeline corrosion | External corrosion | Environmental corrosion |
| Cathodic protection | ||
| Pipeline property | ||
| Stress corrosion | ||
| Number of years | ||
| Internal corrosion | Fluid properties | |
| Internal corrosion protection | ||
| Age and corrosion detection | ||
| Fatigue aging | Pressure safety factor | |
| Pipe diameter | ||
| Pipeline life | ||
| Wave current scour | ||
| Mitigation measures | ||
| Nature break forces | Soil movement | |
| Extreme weather | ||
| Third-party damage | Overburden condition | |
| Water activity level | ||
| Preventive measures against damage | ||
| Identification of the sea area around the pipeline | ||
| misoperation | Safety check | |
| Technological procedure | ||
| Safety record | ||
| Training situation | ||
| Comprehensive quality of personnel | Business capability | |
| Sense of responsibility |