CENTURION PIPELINE L.P.
hazardous_liquid Incident —
Incident Information
| Report Date | — |
| Operator | CENTURION PIPELINE L.P. |
| Commodity | — |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 35.51087, -97.88400 |
Cause
| Cause | MATERIAL FAILURE OF PIPE OR WELD |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
ON DECEMBER 10, 2018, AT APPROXIMATELY 6:30 AM, A CENTURION PIPELINE L.P. (CPL) EMPLOYEE IDENTIFIED A LEAK AT THE EL RENO STATION NEAR EL RENO, OKLAHOMA, IN CANADIAN COUNTY, OKLAHOMA. CPL IMMEDIATELY SHUT STATION VALVES TO ISOLATE THE RELEASE. AFTER EXCAVATION, CPL DETERMINED THE SOURCE OF THE CRUDE OIL TO BE THE 6"" DISCHARGE PIPING OF THE STATION POSITIVE DISPLACEMENT (PD) INJECTION PUMPS. APPROXIMATELY 85 BARRELS OF CRUDE OIL WERE RELEASED WITHIN THE CPL-CONTROLLED STATION, ALL OF WHICH WERE RECOVERED. OF THE 85 TOTAL BARRELS RELEASED, 70 BARRELS WERE RECOVERED IN LIQUID FORM WHILE 15 BARRELS ENTRAINED IN SOIL HAVE BEEN MOVED TO AN AUTHORIZED SITE FOR REMEDIATION. NO INJURIES, FATALITIES, OR FIRES WERE ASSOCIATED WITH THIS ACCIDENT. THE NATIONAL RESPONSE CENTER (NRC) REPORT NUMBER CORRESPONDING TO THE UPDATES CONCERNING THIS ACCIDENT IS 1232658. AT THE TIME OF THIS SUBMITTAL, THE ROOT CAUSE ANALYSIS OF THE FAILURE HAS NOT YET BEEN COMPLETED. FOR THE PURPOSE OF SUBMITTING THIS ORIGINAL ACCIDENT REPORT, CPL HAS SELECTED ""MATERIAL FAILURE OF PIPE OR WELD"" AND A SUB-CAUSE OF ""FATIGUE - OR - VIBRATION-RELATED"". CPL HAS REMOVED THE FAILED SECTION OF PIPING AND IS PERFORMING A LABORATORY FAILURE ANALYSIS AS PART OF THE FAILURE INVESTIGATION. CPL WILL SUBMIT A SUPPLEMENTAL REPORT CONTAINING THE RESULTS OF THE FAILURE INVESTIGATION ONCE COMPLETED. SUPPLEMENTAL FINAL REPORT FILED 07-01-2019. AN INDEPENDENT LAB ANALYSIS OF THE FITTING CONFIRMED ""MATERIAL FAILURE OF PIPE OR WELD"" AND A SUB-CAUSE OF ""FATIGUE - OR - VIBRATION-RELATED"" AS THE FAILURE MODE. THE FITTING FAILED DUE TO VIBRATIONAL FATIGUE AT THE TOE OF THE WELD CONNECTING THE 45-DEGREE LATERAL TO THE STRAIGHT PORTION OF THE WYE FITTING. AS A RESULT OF THIS ANALYSIS, CPL IMPLEMENTED CORRECTIVE ACTIONS TO REDUCE THE RISK OF THIS CONSEQUENCE REOCCURRING. THE DISCHARGE DAMPENER OF THE POSITIVE DISPLACEMENT PUMP HAS BEEN REPLACED TO PREVENT EXCESSIVE VIBRATION. ADDITIONALLY, THE PIPING CONFIGURATION HAS BEEN MODIFIED TO REPLACE THE 45-DEGREE LATERAL WITH A TEE FITTING. SUPPLEMENTAL FINAL REPORT FILED 02-07-2020. PART G5 UPDATED FROM ""SUB-CAUSE IS TENTATIVE OR SUSPECTED; STILL UNDER INVESTIGATION (SUPPLEMENTAL REPORT REQUIRED)"" TO ""DETERMINED BY METALLURGICAL ANALYSIS.
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.