DENBURY ONSHORE, LLC
hazardous_liquid Incident — — January 18, 2011
Incident Information
| Incident Date | January 18, 2011 |
| Operator | DENBURY ONSHORE, LLC |
| Commodity | CO2 (CARBON DIOXIDE) |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 31.55556, -90.39540 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
ON JANUARY 18, 2011, T.D. WILLIAMSON WAS SETTING THE 4TH COMPLETION PLUG IN THE TEMPORARY BYPASS STOPPLE FITTING WHEN THE MECHANICAL SEAL IN THEIR SANDWICH VALVE BLEW OUT. THE VALVE WAS SHUT WHEN THIS HAPPENED BUT IT CAUSED THE PLATE IN THE VALVE TO FLOAT DUE TO THE PRESSURE FROM THE BOTTOM SIDE OF THE VALVE. BECAUSE OF THE PRESSURE ON THE BOTTOM OF THE PLATE CO2 ESCAPED THROUGH THE VALVE ACTUATOR. TDW CAME UP WITH A SOLUTION TO PRESSURE THE TOP SIDE OF THE VALVE WITH A HIGH PRESSURE 1-INCH LINE IN ORDER TO EQUALIZE THE PRESSURE ON EACH SIDE OF THE VALVE. ONCE THIS WAS DONE THEY WERE ABLE TO OPEN THE VALVE AND SET THE COMPLETION PLUG.
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.