Table 6 Consequences of failure
From: An information entropy-based risk assessment method for multiple-media gathering pipelines
First level | Second level | Weight | Description |
|---|---|---|---|
Consequences of failure | Medium hazard | Combustibility (20) | None (2); Flash point>93°C (4); 38°C<Flash point>93°C (8); Flash point<38°C and ignition point<38°C (12); Flash point<23°C and ignition point<38°C (20) |
Toxic hazard (20) | None (2); Minor chronic injuries (5); To avoid temporary incapacity, medical measures must be taken immediately (10); Can cause severe temporary or sequelae injuries (15); Short-term exposure can cause death or serious injury (20) | ||
Receptor | Population density (26) | Level 1 first class region (5); Level 1 second class area region (8); Level 2 region (15); Level 3 region (20); Level 4 region (26) | |
Environmental sensitivity a (22) | None (8); Vegetation or farmland (14); Culverts, rivers, fresh water, marshes and silted land, wetlands (18); Animal sanctuary, scenic spot or scenic area sanctuary (22) | ||
Internal influence in oil and gas filed b (12) | Well-metering station/metering station-well/water supply-injection branch (6); Metering station-transfer station/transfer station-metering station/metering station-processing station/metering station-pull station/gathering station-transfer station (8); Transfer station-processing station/transfer station-transfer station/empty station-processing station/processing station-empty station (9); Oil depot-oil depot/oil depot-outside the station/processing station-oil depot (12) | ||
Total | Â | 100 | |