ROSE ROCK MIDSTREAM L.P.

hazardous_liquid Incident — — April 2, 2014

Incident Information

Incident DateApril 2, 2014
OperatorROSE ROCK MIDSTREAM L.P.
CommodityCRUDE OIL
Pipeline Typehazardous_liquid

Location

State
Coordinates36.77616, -97.24686

Cause

CauseINCORRECT OPERATION
SubcausePIPELINE OR EQUIPMENT OVERPRESSURED

Casualties

Fatalities0
Injuries0

Costs

Property Damage$15,000
Emergency Response$17,000
Other Costs$0

Location Map

Incident Narrative

AS PART OF A MAINTENANCE PROCEDURE, LO/TO WAS IMPLEMENTED ON FOUR MAINLINE VALVES. UPON COMPLETION OF THE MAINTENANCE WORK, INSTRUCTIONS WERE GIVEN TO REMOVE ALL LOCKS AND OPEN UP MAINLINE VALVES. ONE VALVE WAS INADVERTENTLY LEFT CLOSED AND THE LINE WAS STARTED UP AGAINST THE CLOSED VALVE. THE MOP OF THE PIPELINE AT BRAMAN STATION IS 1440 PSIG. THE MOP OF THE PIPELINE AT THE POINT OF FAILURE IS 780 PSIG. BECAUSE THE PRESSURE TRANSMITTER ON THE PIPELINE AT BLACKWELL JCT WAS INOPERABLE NO PRESSURE ALARM WAS RECEIVED TO INDICATE EXCEEDENCE OF THE 780 MOP. THE SYSTEM IS DESIGNED TO SHUTDOWN BRAMAN STATION IF THE PRESSURE REACHES 780 AT BLACKWELL JCT. THE CONTROLLER WAS WATCHING THE PRESSURE AT BRAMAN AND HE SAW IT HIGHER THAN NORMAL AND SHUT THE PIPELINE DOWN AT 1160 PSI. HE COULD NOT SEE THE PRESSURE AT BLACKWELL JCT.

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.

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