DOUBLE H
hazardous_liquid Incident —
Incident Information
| Report Date | — |
| Operator | DOUBLE H |
| Commodity | — |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 47.80582, -104.48559 |
Cause
| Cause | NATURAL FORCE DAMAGE |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
ON FEBRUARY 4TH, 2017 DURING A FACILITY CHECK OPERATIONS DISCOVERED A LEAK FROM THE RELIEF FITTING ON THE CASING OF A KICKER VALVE (BV-187) WHICH WAS RECENTLY INSTALLED ON JANUARY 18TH, 2017. THE NEW VALVE WAS REPLACEMENT IN KIND. APPROX. 21 GALLONS OF CRUDE OIL WAS FOUND IN THE CONTAINMENT AREA. THE RELIEF FITTING IN THIS CASE WAS SET TO RELIEVE AT 1480 PSI. THE RELIEF FITTING REACHED A MAXIMUM PRESSURE OF APPROXIMATELY 900 PSIG AND FAILED AFTER CONDENSATION MADE ITS WAY INTO THE TOP OF THE RELIEF FITTING, EVENTUALLY FROZE, AND BUSTED THE INTERNAL CHECK VALVE. THE PRESSURE AROUND AT THE TIME OF FAILURE WAS APPROXIMATELY 800PSIG. THIS FAILURE CAUSED A RELEASE OF PRODUCT. FOR LIQUID SERVICE, A STAINLESS STEEL PIPE AWAY OR PORTED RELIEF VALVE IS RECOMMENDED IN PLACE OF RELIEF FITTING. THE PORTED RELIEF IS THEN PIPED BACK TO A SAFE PLACE OR UPSTREAM OF THE VALVE.
About This Pipeline Incident
Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.