PHILLIPS 66 PIPELINE LLC

Incident Narrative

AT 10:00 CONTROL CENTER WAS SCHEDULED TO START UP GL07. ONCE LINE WAS UP AND NEARING A STEADY STATE CONTROLLER REVIEWED THE BRACKET ALARMS AND NOTICED A SUMP ALARM HAD CAME IN DURING THE START UP AT FIFE STATION. CONTROLLER THEN INVESTIGATED ALARM AND NOTICED SUMP LEVELS WERE CONTINUING TO CLIMB INDICATING AN ISSUE OR POSSIBLE SEAL FAIL. BCC IMMEDIATELY CALLED LOCAL TECH AND HE STATED THEY RECEIVED COLD TEMPERATURES AND A FEW INCHES OF SNOW SO THERE WAS A GOOD CHANCE THE SEAL COULD BE GOING OUT. BCC (BARTLESVILLE CONTROL CENTER) IMMEDIATELY SHUT DOWN THE LINE. FIELD TECHNICIAN ARRIVED, THEY FOUND THAT THE UNIT INDEED HAD A SEAL FAILURE. EMERGENCY PROCEDURES IMPLEMENTED, NOTIFICATION MADE, CLEAN UP CREWS MOBILIZED AND BEGAN CLEAN UP OF OIL. ROOT CAUSE - SEAL FAIL LEADING TO THE RELEASE OF CURDE OIL TO THE GROUND. SECONDARY CAUSE WAS DUE TO EXCESSIVE AXIAL SHAFT MOVEMENT ON THE THRUST BEARING. JOHN CRANE SEAL INSPECTION REPORT- SHAFT SLEEVES SHOWED THE DYNAMIC O-RING CONTACT MARKS WERE ABOUT .080-.100"" OFFSET WHEN COMPARING SLEEVES FROM THE TWO SEALS. THIS POINTS TO THE POSSIBILITY OF AXIAL SHAFT MOVEMENT OR SHUTTLING OF ABOUT .040-.050"". IN ADDITION TO THE OFFSET O-RING POSITION, ANOTHER INDICATION OF THRUST IS THAT ONE SET OF FACES SHOWED SLIGHTLY MORE WEAR THAN THE OTHER. THIS AXIAL SHAFT MOVEMENT IS AN ISSUE SOMETIMES SEEN ON BB3 AND DOUBLE SUCTION PUMPS. WITH ANY SHAFT MOVEMENT ONE SEAL SEES AN OVER-COMPRESSED CONDITON WHILE THE OTHER RUNS IN AN UNDER-COMPRESSED CONDITION POSSIBLY LEAKING PREMATURELY AS FACE WEARS. REPLACED BEARING AND SEALS. UPDATE 1/20/2021 DUE TO FINAL COST COMING IN.