CENTERPOINT ENERGY GAS TRANSMISSION
gas_transmission Incident — — July 14, 2012
Incident Information
| Incident Date | July 14, 2012 |
| Operator | CENTERPOINT ENERGY GAS TRANSMISSION |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 34.43104, -94.44921 |
Cause
| Cause | INCORRECT OPERATION |
| Subcause | VALVE LEFT OR PLACED IN WRONG POSITION, BUT NOT RESULTING IN AN OVERPRESSURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $900 |
| Other Costs | $0 |
Location Map
Incident Narrative
CEGT COVE COMPRESSOR - ON 7/14/2012, AT APPROXIMATELY 9:34AM, A PRESSURE BLEED-OFF TRIGGERED AN UN-INTENDED EMERGENCY SHUT-DOWN (ESD) AT THE COMPRESSOR STATION. A CEGT TECHNICIAN FAILED TO RETURN ALL VALVES TO THEIR FOUND POSITION UPON COMPLETION OF THE WORK TASK RESULTING IN ACTIVATION OF THE COMPRESSOR ESD SYSTEM. UPON ACTIVATION OF THE COMPRESSOR ESD SYSTEM BOTH THE SUCTION AND DISCHARGE ESD VALVES FAILED TO CLOSE. AN INCIDENT INVESTIGATION FOUND THAT DEBRIS PRESENT IN THE VALVES CAUSED THEM TO BIND OR SEIZE EFFECTIVELY DISABLING OPERATION OF THE VALVES.
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.