ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC
gas_transmission Incident — — November 7, 2018
Incident Information
| Incident Date | November 7, 2018 |
| Operator | ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 36.28259, -95.66162 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $1,500 |
| Emergency Response | $500 |
| Other Costs | $0 |
Location Map
Incident Narrative
AT 06:45 ON 11/7/2018 THE ENABLE OKLAHOMA INTRASTATE TRANSMISSION (EOIT) SYSTEM CONTROL RECEIVED A CALL ABOUT AN ODOR OF GAS AT THE CLAREMORE COMPRESSOR STATION IN CLAREMORE, OKLAHOMA. WHEN THE EOIT O&M TECHNICIAN ARRIVED AT THE STATION, HE PERFORMED A COMPLETE INSPECTION AND FOUND A INTERSTAGE RELIEF VALVE DISCHARGING. THE RELIEF VALVE WAS CLOSED AND THE UNIT WAS SHUTDOWN WHILE REPAIRS WERE PERFORMED. IT WAS DETERMINED THE RELIEF VALVE VENTED PREMATURELY DUE TO A BREAKDOWN OF MATERIALS IN THE PILOT VALVE. IT IS ASSUMED THIS BREAKDOWN IS DUE TO VIBRATION. THE RELIEF WAS REBUILT AND THE UNIT WAS RESTARTED ON 11/8/2018. WHEN IT WAS SAFE TO DO SO, THE AMOUNT AND DURATION OF GAS LOSS WAS CALCULATED TO BE 4.7 MMCF. THESE TOTALS WERE CONFIRMED AT 10:30 AND A CALL WAS PLACED TO NRC AT 10:46 (NRC#1229736). A FOLLOW UP CALL WAS PLACED WITH THE NRC ON 11/8/18 AT 11:12 (NRC#1229852).
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.