TARGA DOWNSTREAM LLC

Incident Narrative

THIS INCIDENT RESULTED FROM A PIN HOLE LEAK FROM A SOCKET WELDED FLANGE CONNECTION ON THE PUMP CASE. THE SOCKET WELDED FLANGE CONNECTS TO THE VENT PIPING THAT IS USED TO BLOW DOWN NGL FROM THE PUMP CASE. THE PUMP WAS NEW AND IN THE PROCESS OF BEING COMMISSIONED. ON 2/2/2020 THE PUMP AND ASSOCIATED PIPING WAS FILLED WITH NGL. PUMP WAS NOT PLACED INTO SERVICE. UPON RETURNING TO THE STATION ON 2/3/2020 AT 10:00 AM, PERSONNEL DISCOVERED A SMALL VAPOR LEAK BEING RELEASED TO THE ATMOSPHERE FROM THE PIPING FLANGE CONNECTION TO THE PUMP. TO STOP THE LEAK, PRODUCT IN THE PUMP CASE AND ASSOCIATED PIPING WAS REMOVED WITH A CONTROLLED BLOWDOWN. BECAUSE THE LEAK ORIGINATED FROM A PIN-HOLE AND THE TIME LEAKAGE OCCURRED IS UNKNOWN, IT IS ESTIMATED THAT APPROXIMATELY HALF THE PUMP CASE AND ASSOCIATED PIPING BLED DOWN FROM THE PIN-HOLE AND THE REMAINDER WAS A CONTROLLED BLOW DOWN. TOTAL AMOUNT RELEASE IS 14.3 BBLS. BECAUSE THIS WAS A NEW INSTALLATION, THE FLANGE AND PIPING WERE DISCONNECTED FOR REPAIR AND REPLACEMENT BY THE PUMP MANUFACTURER, RUHRPUMPEN. FOR THE REPAIR, A SUCCESSFUL HYDROSTATIC TEST WAS PERFORMED AT 3,300 PSI. THE CONNECTION WAS REPLACED ON THE PUMP. FOR PUMP CONNECTIONS FROM THIS MANUFACTURER THAT CAN BE TESTED, TARGA WILL HYDROTEST THOSE CONNECTIONS TO ENSURE NO LEAKAGE OCCURS. THIS IS THE FINAL REPORT. ALL ACTIONS DESCRIBED HAVE BEEN TAKEN AND COMPLETED.