ONEOK GAS TRANSPORTATION, LLC
gas_transmission Incident — — January 6, 2014
Incident Information
| Incident Date | January 6, 2014 |
| Operator | ONEOK GAS TRANSPORTATION, LLC |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 35.73459, -96.56181 |
Cause
| Cause | CORROSION FAILURE |
| Subcause | EXTERNAL CORROSION |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $180,000 |
| Emergency Response | $3,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
THE ONEOK GAS TRANSPORTATION (OGT) LINE A-26 PIPELINE FAILED AND ESCAPING GAS IGNITED APPROXIMATELY 1.5 MILES SOUTH OF MILFAY, OK AT 1057 HOURS ON JANUARY 6, 2014. OGT FIELD OPERATIONS PERSONNEL WORKING AT THE ONEOK GAS STORAGE DEPEW STORAGE FACILITY WERE THE FIRST TO RECOGNIZE THE EVENT AND NOTIFIED GAS CONTROL WITHIN FIVE MINUTES. GAS CONTROL CONFIRMED THIS ALSO WITH THE DATA COMING IN ON THEIR SCADA SCREENS. OGT PERSONNEL WERE DISPATCHED TO THE SITE ARRIVING AT 1120 HOURS. LOCAL LAW ENFORCEMENT AND FIRE DEPARTMENT ALSO RESPONDED. THERE WERE NO FATALITIES OR INJURIES. THE 10.7 MILE PIPE SEGMENT WAS ISOLATED AT 1155 HOURS. NATURAL GAS SERVICE WAS DISRUPTED TO 48 UTILITY CUSTOMERS IN MILFAY AND 13 RURAL FARM TAP CUSTOMERS WERE ALSO IMPACTED. A NEW SECTION OF PIPE WAS INSTALLED AND THE PIPELINE RETURNED TO SERVICE ON JANUARY 9, 2014. UPDATE: THIRD PARTY FAILURE ANALYSIS DETERMINED THE FAILURE WAS CAUSED BY GENERAL AND INTERGRANULAR EXTERNAL CORROSION THAT OCCURRED UNDER COLD APPLIED TAPE COATING. THIS CAUSED A REDUCTION IN THE PIPELINE WALL THICKNESS TO THE POINT THE MATERIAL WAS NO LONGER CAPABLE OF CONTAINING THE GAS PRESSURE AND FAILURE OCCURRED.
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.