ENERGY XXI PIPELINE, LLC

Incident Narrative

UPON RECEIVING NOTIFICATION FROM CHEVRON, (3RD PARTY PIPELINE COMPANY), THAT THE WEST DELTA RECEIVING STATION WAS RECEIVING HIGHER THAN NORMAL LINE PRESSURE BUT LESS THAN THE LINE'S MOP, ENERGY XXI PERSONNEL WENT TO INVESTIGATE THE SITUATION. UPON ARRIVING AT WDRS THE TECHNICIAN AND FOREMAN FOUND THE SHUT DOWN VALVE 90% CLOSED DUE TO NITROGEN LOSS HOLDING PRESSURE ON THE VALVE'S ACTUATOR. AN EMAIL AND PHONE CALLS WERE MADE TO EACH PRODUCER DELIVERING INTO THE PIPELINE TO SHUT IN PRODUCTION. WHILE PRODUCTION WAS BEING SHUT IN, THE TECHNICIAN AND FOREMAN TRIED TO RESET THE NITROGEN TO THE SDV ONLY TO HAVE IT UNEXPECTEDLY CLOSE COMPLETELY. WITH THE SDV CLOSED AND THE PRODUCTION SHUTTING IN, THE HIGH PRESSURE ON THE PIPELINE ACTIVATED THE METER SKID PSV'S WHICH CAUSED THE FLUID TO FLOW INTO SUMP, OVERFILL IT AND BACKED UP TO SUMP TROUGH AND ONTO THE GROUND. AT NO TIME WAS THE MOP OF THE LINE EXCEEDED. THEREAFTER, THE TECHNICIAN AND FOREMAN INSTALLED A NEW NITROGEN BOTTLE TO HOLD PRESSURE ON THE SDV IN THE OPEN POSITION. ALL VALVES WERE THEN RESET TO THEIR NORMAL POSITIONS AND PRODUCTION RESUMED. CLEAN-UP BEGAN THE NEXT DAY BY OMI.