ENTERPRISE PRODUCTS OPERATING LLC

gas_transmission Incident —

Incident Information

Report Date
OperatorENTERPRISE PRODUCTS OPERATING LLC
Commodity—
Pipeline Typegas_transmission

Location

State
Coordinates33.13005, -97.49584

Cause

CauseEQUIPMENT FAILURE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

Property Damage
Lost Commodity
Public/Private Damage
Emergency Response
Environmental Remediation
Other Costs

Location Map

Incident Narrative

ON FEBRUARY 17, 2010 THE WISE COUNTY COMPRESSOR STATION DISCHARGE VENT VALVE SOLENOID FAILED, CAUSING THE COMPRESSOR DISCHARGE VENT VALVE TO OPEN. THE PLC FAILED TO CLOSE THE SUCTION AND DISCHARGE VALVES ON THE COMPRESSOR AND INITIATE A COMPRESSOR STATION SHUTDOWN. THE INCIDENT WAS DISCOVERED BY LOCAL OPERATIONS AT 06:50. AFTER REVIEW OF THE INCIDENT, IT WAS DISCOVERED THAT A SEQUENCE BYPASS HAD BEEN INSTALLED DURING THE INTIAL COMMISSIONING OF THE STATION TO HELP PURGE THE STATION. THE BYPASS WAS NOT REMOVED AFTER COMMISSIONING. THIS ALLOWED THE COMPRESSOR SUCTION AND DISCHARGE VALVES TO STAY OPEN WHEN THE SOLENIOD FAILED ON THE COMPRESSOR VENT VALVE CAUSING IT TO OPEN.

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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