ENTERPRISE PRODUCTS OPERATING LLC

gas_transmission Incident —

Incident Information

Report Date
OperatorENTERPRISE PRODUCTS OPERATING LLC
Commodity—
Pipeline Typegas_transmission

Location

State
Coordinates29.29302, -95.93842

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 04:30AM ON JANUARY 4, 2013 FIELD OPERATIONS FOUND A CRACK ON THE STATION BLOW DOWN LINE AT THE WILSON STORAGE FACILITY. THE SECTION OF THE PIPELINE THAT CONTAINED THE CRACK WAS ISOLATED AND REPAIRS WERE MADE. THE CRACK OCCURRED ON A 24"" X 8"" SADDLE THAT SUPPORTED THE STATION VENT VALVE AND ACCUATOR. ENGINEERING ANALYZED THE AREA AND CONCLUDED THAT THE CRACK WAS CAUSED BY HARMONIC VIBRATION. TO RESOLVE THE VIBRATION ISSUE, THE SADDLE WAS REMOVED AND A 24"" X 12"" SPLIT TEE WAS INSTALLED TO SUPPORT THE BLOW LINE, VALVE, AND ACCUATOR. THE BLOWDOWN STACK WAS AS ALSO SHORTENED TO MITIGATE VIBRATION. THE INCIDENT WAS REPORTED ON JANUARY 9, 2013 AFTER IT WAS DETERMINED THAT THE REPAIR COSTS EXCEEDED THE 50 THOUSAND DOLLAR THRESHOLD.

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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