GENESIS OFFSHORE HOLDINGS, LLC
gas_transmission Incident — — February 28, 2020
Incident Information
| Incident Date | February 28, 2020 |
| Operator | GENESIS OFFSHORE HOLDINGS, LLC |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 28.25899, -94.01301 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $778,000 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
DURING A ROUTINE HELICOPTER FLYOVER ON FEBRUARY 22ND, A RELATIVELY LOW LEVEL OF GAS BUBBLES WERE SEEN NEAR THE HIGH ISLAND OFFSHORE SYSTEM (HIOS) 30"" GAS PIPELINE IN THE HI-470 BLOCK. THE PERSONNEL DID NOT OBSERVE ANY SHEEN ON THE WATER. DIVERS ARRIVED ON LOCATION AND DISCOVERED A LEAK OF THE VALVE #1 GREASE FITTING AT A SUBSEA ASSEMBLY. PLANS WERE MADE TO REPLACE REMAINING GREASE FITTINGS ON THE SSTI ASSEMBLY TO PREVENT THEM FROM LEAKING AT A LATER DATE. ON MARCH 18, 2020 DIVERS COMPLETED THE REPLACEMENT OF FITTINGS, THE PIPELINE WAS RE-PRESSURED AND REMAINED WITHOUT ANY SIGNS OF LEAKAGE AFTERWARDS. UPON CLOSE INSPECTION OF THE LEAKING FITTING, IT WAS DETERMINED THAT THE FITTING'S INTERNAL SEAL PROVIDED BY THE CHECK BALL WAS BROKEN DUE TO CORROSION INSIDE THE FITTING. SUPPLEMENTAL (03/30/20) - 48 HOUR NRC CONFIRMATION RECORDED.
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.