TENNESSEE GAS PIPELINE COMPANY
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | TENNESSEE GAS PIPELINE COMPANY |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 28.55100, -91.67917 |
Cause
| Cause | CORROSION FAILURE |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
TENNESSEE GAS PIPELINE (TGP) WAS NOTIFIED BY THE BUREAU OF SAFETY AND ENVIRONMENTAL ENFORCEMENT (BSEE) THAT BUBBLES AND ABOUT A 1 MILE LONG SHEEN WERE VISIBLE IN THE VACINITY OF TGP'S 24"" LINE 523M-3700 ON THE OCS IN EUGENE ISLAND BLOCK 241. TGP INVESTIGATED AND CONFIRMED THE LOCATION OF THE BUBBLES AND SHEEN. THE ONLY PRODUCER FLOWING INTO THE PIPELINE WAS IMMEDIATELY SHUT-IN. DIVERS WERE SENT CLOSE A 30X24 SUBSEA VALVE IN ORDER TO REDUCE THE PIPELINE PRESSURE BEFORE EVALUATING THE LEAK LOCATION BUT WERE DELAYED BY WEATHER FROM DIVING AND COMPLETING THIS TASK UNTIL MARCH 17. AN ADDITIONAL CHECK VALVE WAS TO BE PINNED BEFORE COMMENCING REPAIR OF THE LEAK BUT THE DIVERS HAD TO RETURN TO SHORE ON MARCH 21 DUE TO BAD WEATHER. ON MARCH 27 THE DIVERS RETURNED TO THE LEAK LOCATION AND WERE ABLE TO EXCAVATE THE PIPE, REMOVE THE COATING AND INSTALL A LEAK CLAMP TO COMPLETE THE REPAIR. THE CLAMP INSTALLATION WAS COMPLETED ON MARCH 29 AND THE PIPELINE THEN RETURNED TO SERVICE.
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.