PHILLIPS 66 PIPELINE LLC
hazardous_liquid Incident — — June 9, 2019
Incident Information
| Incident Date | June 9, 2019 |
| Operator | PHILLIPS 66 PIPELINE LLC |
| Commodity | HVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 30.16710, -90.80250 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | THREADED CONNECTION/COUPLING FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $6,000 |
| Emergency Response | $1,500 |
| Other Costs | $0 |
Location Map
Incident Narrative
"SHELL/MOTIVA CALLED PHILLIPS 66 BARTLESVILLE CONTROL CENTER AND NOTIFIED THEM OF A LEAK ON PHILLIPS 66 PIPING INSIDE THEIR TEXACO VALVE FACILITY. THE LEAK WAS VENTING PROPANE TO ATMOSPHERE. PHILLIPS 66 PIPELINER RESPONDED CONFIRMING THE LEAK ON PHILLIPS 66 FILTER UNIT. SHELL/MOTIVA FIRE DEPARTMENT RESPONDED AND SPRAYED WATER ON THE LEAK LOCATION UNTIL THE LEL LEVELS DROPPED FOR SAFE INGRESS/EGRESS TO ACHIEVE ISOLATION. THE SOURCE WAS DETERMINED TO BE A FAILED NIPPLE DUE TO HIGH CYCLE FATIGUE. THE RELEASE VOLUME WAS 1.01 BBLS OF PROPANE. INITIAL THOUGHTS WERE THAT THE LEAK WAS DUE TO A FAILED GASKET AND UNDER THE $50K. ONCE THE AREA WAS SAFE AND SECURED WE WERE ABLE TO DETERMINE ACTUAL CAUSE OF THE FAILED NIPPLE. DETERMINATION AT THAT TIME WAS THAT IT COULD EXCEED THE $50K THRESHOLD AND AN NRC CALL WAS MADE. THE ACTUAL INVESTIGATION ISN'T COMPLETED, ONCE IT IS A SUPPLEMENTAL/FINAL REPORT WILL BE ISSUED. -------------------------------------------------------------------------------------------------------------------------------- 07/10/2019 UPDATE: LAB ANALYSIS RESULTS THE PIPE NIPPLE CRACKED DUE TO HIGH-CYCLE FATIGUE INITIATING AT THE LAST ENGAGED THREAD, MOST LIKELY DUE TO VIBRATION IN THE EQUIPMENT NEARBY. THE METALLURGICAL ANALYSIS REVEALED: THE STRAIGHT, NON-CRYSTALLOGRAPHIC, AND NON-BRANCHING CRACKS CONFIRMED FAILURE DUE TO FATIGUE. BEACH MARKS AND FINE STRIATIONS ON THE PIPE FRACTURE SURFACE CONFIRMED HIGH CYCLE FATIGUE. THE CRACK MORPHOLOGY RULED OUT STRESS-CORROSION CRACKING AND INTERNAL CORROSION."
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.