"ONEOK NGL PIPELINE, LLC"
hazardous_liquid Incident — — December 19, 2021
Incident Information
| Incident Date | December 19, 2021 |
| Operator | "ONEOK NGL PIPELINE, LLC" |
| Commodity | HVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 36.77514, -97.76171 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | OTHER EQUIPMENT FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $2,500 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
"DECEMBER 19TH AT 15:15 AT THE MEDFORD ARBUCKLE II SITE, A PLANT OPERATOR NOTICED A SMALL ICE BALL ON A 1.5"" BALL VALVE. PLANT OPERATOR CONTACTED PIPELINE OPERATOR WHO ARRIVED AT 16:15 AND VERIFIED A PINHOLE LEAK ON THE BODY OF A BLOWDOWN VALVE. THE LOCATION OF THE VALVE ON THE METER SKID REQUIRED THE PIPELINE TO BE SHUTDOWN TO ISOLATE VALVE. PIPELINE WAS SHUTDOWN AT 18:37 ON 12/19/21. VALVE WAS ISOLATED FROM THE PIPELINE AFTER LINE WAS PURGED. VALVE WILL BE REMOVED AND SENT TO LAB FOR METALLURGICAL TESTING. PIPELINE WAS STARTED BACK UP 12/20/21 AT 13:27. 10/04/22 UPDATE: THE RESULT OF THE METALLURGICAL ANALYSIS INDICATES THAT STRESS RISERS ASSOCIATED WITH THE VOIDS IN THE AS-MANUFACTURED WELD METAL WAS THE CAUSE OF THE 1.5"" BALL VALVE FAILURE. 10/20/22 UPDATE: UPDATED .77 BARRELS RELEASED TO PHSMA CALCULATIONS OF .8."
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.