ENTERPRISE PRODUCTS OPERATING LLC

gas_transmission Incident —

Incident Information

Report Date
OperatorENTERPRISE PRODUCTS OPERATING LLC
Commodity—
Pipeline Typegas_transmission

Location

State
Coordinates30.01477, -99.50072

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

AT 06:00 OPERATIONS TECHNICIAN ARRIVED AT THE REAL COMPRESSOR STATION AND DISCOVERED A RELIEF VALVE VENTING NATURAL GAS TO ATMOSPHERE ON THE C-200 COMPRESSOR UNIT. TECHNICIAN RESPONDED IMMEDIATELY AND CLOSED THE ISOLATION VALVE TO THE 3X4"" RELIEF VALVE THUS, ENDING THE EVENT. THIS UNIT HAS TWO RELIEF VALVES ON THE UNIT OPERATING IN PARALLEL AS A REDUNDANT SYSTEM. UPON FURTHER INVESTIGATION, IT WAS DETERMINED THAT THE RELIEF VALVE LIFTED PREMATURELY DUE TO A LEAK ON THE SENSING LINE FOR THE RELIEF VALVE DUE TO EXCESSIVE VIBRATION. THE SENSING LINE TUBING WAS REPLACED WITH ADDITIONAL SUPPORTS TO PREVENT FUTURE RECURRENCE.

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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