Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2011-02-24 — TX
Operator
Denbury Gulf Coast Pipelines, Llc
Cause
Equipment Failure
Commodity
Co2 (Carbon Dioxide)
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$500
Incident datetime
2011-02-24 20:27
Report number
Location
TX
Narrative
On february 24, 2011 at approximately 8:27pm, the night watchman at the lake charles pump station called the denbury pipeliner on-call to report a release of CO2 at the pump station. The denbury pipeliner on-call notified the foreman at 8:35pm and the foreman notified the pipeline superintendant at 8:40pm. Other appropriate notifications were made as well. A decision was made not to file a report with the national response center since the criteria for such a report were not met (there were no deaths, no hospitalizations, and property damage was not anticipated to exceed $50,000) the pipeliner arrived at the lake charles pump station at 8:55pm to find that CO2 vapors were being released inside the pump station yard and that the fire department was on-site. The fire department monitored oxygen levels and asked residents to shelter-in-place. The pipeliner suited up in scba and went into the station to activate the emergency shut down (esd) at 9:20pm. The pipeliner verified on the station local control panel that the proper valves had closed, then returned to the gate. Product was still being released, so at approximately 9:45pm, the pipeliner went to the trap area and identified the point of release on the pig launcher. He unlocked the 24 inch and 8 inch valves on the pig launcher and closed these valves. At 10:20pm, the pig launcher and the leak were isolated. At 10:30pm, the fire department monitored oxygen levels around the station and declared all clear to residents who had sheltered in place. On february 25, 2011, 1:45am, the pig launcher was blown down and secure. On february 25, 2011, 7:40am, the pig launcher was blown down. Lock/out tagouts were installed on pig launcher 24 inch and 8 inch isolation valves. The safety bolt on the closure door was removed and the door to the pig launcher was opened. Found o-ring to be cut at the 1 o'clock position. The damaged o-ring was removed. A new o-ring was installed on the trap closure, the closure door was closed and the safety bolt was installed. On february 25, 2011, 8:50am, the 6 inch knock-off cap off of the launcher barrel blowdown stack was removed and the mating surface areas of the knock-off cap and blowdown stack were cleaned. A new o-ring was installed in the knock-off cap and the knock-off cap was installed on the blowdown stack. The needle valve in the top of the knock-off cap was closed and the 1/2 inch plug in the needle valve was installed. Lockout/tagouts from the 24 inch and 8 inch block valves on the pig launcher were removed. Picked up tools and disposed of trash. The lake charles pump station was restarted on february 25, 2011, 2:00pm.
Detailed record list
Report Received Date
2011-03-25 00:00:00
Iyear
2011
Report Number
20110149
Supplemental Number
15814
Report Type
Original
Operator Id
32545
Name
Denbury Gulf Coast Pipelines, Llc
Operator Street Address
5851 Legacy Circle Suite 1200
Operator City Name
Plano
Operator State Abbreviation
TX
Operator Postal Code
75024
Local Datetime
2011-02-24 20:27:00
Location Latitude
30.32637
Location Longitude
-93.35268
Commodity Released Type
Co2 (Carbon Dioxide)
Unintentional Release Bbls
8.36
Intentional Release Bbls
18.14
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Contractor Working For The Operator
Incident Identified Datetime
2011-02-24 20:27:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2011-02-24 21:15:00
Restart Datetime
2011-02-25 14:00:00
On Site Datetime
2011-02-24 20:55:00
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Pipe Fac Name
Lake Charles Pump Station
Segment Name
Lake Charles Pump Station
Onshore State Abbreviation
La
Onshore Postal Code
70601
Onshore City Name
Sulphur
Onshore County Name
Calcasieu
Designated Location
Survey Station No.
Designated Name
9316+10
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Scraper/pig Trap
Installation Year
2010
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
41
Est Cost Prop Damage
500
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
541
Accident Psig
1950
Mop Psig
2220
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
30
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
No
Investigation Status
No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate)
Investigation Status Details
The size of the leak could not have been expected to be detected by the controller or the currently installed cpm leak detection system software (5% of total flow is the current lower detectable limit).
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
O-Ring
Ief Addl Misalignment Ind
Yes
Preparer Name
M*** B******
Preparer Title
Pipeline Reg Mgr Denbury Onshore Llc
Preparer Email
M***********@d******.com
Preparer Telephone
601-718-6227
Preparer Fax
601-718-6250
Prepared Date
2011-03-23 00:00:00
Authorizer Name
R***** L* C********
Authorizer Telephone
972-673-2000
Authorizer Title
Sr. Vice President-Operations
Authorizer Email
R***************@d******.com
Narrative
On february 24, 2011 at approximately 8:27pm, the night watchman at the lake charles pump station called the denbury pipeliner on-call to report a release of CO2 at the pump station. The denbury pipeliner on-call notified the foreman at 8:35pm and the foreman notified the pipeline superintendant at 8:40pm. Other appropriate notifications were made as well. A decision was made not to file a report with the national response center since the criteria for such a report were not met (there were no deaths, no hospitalizations, and property damage was not anticipated to exceed $50,000) the pipeliner arrived at the lake charles pump station at 8:55pm to find that CO2 vapors were being released inside the pump station yard and that the fire department was on-site. The fire department monitored oxygen levels and asked residents to shelter-in-place. The pipeliner suited up in scba and went into the station to activate the emergency shut down (esd) at 9:20pm. The pipeliner verified on the station local control panel that the proper valves had closed, then returned to the gate. Product was still being released, so at approximately 9:45pm, the pipeliner went to the trap area and identified the point of release on the pig launcher. He unlocked the 24 inch and 8 inch valves on the pig launcher and closed these valves. At 10:20pm, the pig launcher and the leak were isolated. At 10:30pm, the fire department monitored oxygen levels around the station and declared all clear to residents who had sheltered in place. On february 25, 2011, 1:45am, the pig launcher was blown down and secure. On february 25, 2011, 7:40am, the pig launcher was blown down. Lock/out tagouts were installed on pig launcher 24 inch and 8 inch isolation valves. The safety bolt on the closure door was removed and the door to the pig launcher was opened. Found o-ring to be cut at the 1 o'clock position. The damaged o-ring was removed. A new o-ring was installed on the trap closure, the closure door was closed and the safety bolt was installed. On february 25, 2011, 8:50am, the 6 inch knock-off cap off of the launcher barrel blowdown stack was removed and the mating surface areas of the knock-off cap and blowdown stack were cleaned. A new o-ring was installed in the knock-off cap and the knock-off cap was installed on the blowdown stack. The needle valve in the top of the knock-off cap was closed and the 1/2 inch plug in the needle valve was installed. Lockout/tagouts from the 24 inch and 8 inch block valves on the pig launcher were removed. Picked up tools and disposed of trash. The lake charles pump station was restarted on february 25, 2011, 2:00pm.
| Report Received Date | 2011-03-25 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110149 |
| Supplemental Number | 15814 |
| Report Type | Original |
| Operator Id | 32545 PHMSA Enforcement |
| Name | Denbury Gulf Coast Pipelines, Llc |
| Operator Street Address | 5851 Legacy Circle Suite 1200 |
| Operator City Name | Plano |
| Operator State Abbreviation | TX |
| Operator Postal Code | 75024 |
| Local Datetime | 2011-02-24 20:27:00 |
| Location Latitude | 30.32637 Google Maps OpenStreetMap |
| Location Longitude | -93.35268 Google Maps OpenStreetMap |
| Commodity Released Type | Co2 (Carbon Dioxide) |
| Unintentional Release Bbls | 8.36 |
| Intentional Release Bbls | 18.14 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Contractor Working For The Operator |
| Incident Identified Datetime | 2011-02-24 20:27:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2011-02-24 21:15:00 |
| Restart Datetime | 2011-02-25 14:00:00 |
| On Site Datetime | 2011-02-24 20:55:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Pipe Fac Name | Lake Charles Pump Station |
| Segment Name | Lake Charles Pump Station |
| Onshore State Abbreviation | La |
| Onshore Postal Code | 70601 |
| Onshore City Name | Sulphur |
| Onshore County Name | Calcasieu |
| Designated Location | Survey Station No. |
| Designated Name | 9316+10 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Scraper/pig Trap |
| Installation Year | 2010 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 41 |
| Est Cost Prop Damage | 500 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 541 |
| Accident Psig | 1950 |
| Mop Psig | 2220 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 30 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf Ind | No |
| Investigation Status | No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate) |
| Investigation Status Details | The size of the leak could not have been expected to be detected by the controller or the currently installed cpm leak detection system software (5% of total flow is the current lower detectable limit). |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | O-Ring |
| Ief Addl Misalignment Ind | Yes |
| Preparer Name | M*** B****** |
| Preparer Title | Pipeline Reg Mgr Denbury Onshore Llc |
| Preparer Email | M***********@d******.com |
| Preparer Telephone | 601-718-6227 |
| Preparer Fax | 601-718-6250 |
| Prepared Date | 2011-03-23 00:00:00 |
| Authorizer Name | R***** L* C******** |
| Authorizer Telephone | 972-673-2000 |
| Authorizer Title | Sr. Vice President-Operations |
| Authorizer Email | R***************@d******.com |
| Narrative | On february 24, 2011 at approximately 8:27pm, the night watchman at the lake charles pump station called the denbury pipeliner on-call to report a release of CO2 at the pump station. The denbury pipeliner on-call notified the foreman at 8:35pm and the foreman notified the pipeline superintendant at 8:40pm. Other appropriate notifications were made as well. A decision was made not to file a report with the national response center since the criteria for such a report were not met (there were no deaths, no hospitalizations, and property damage was not anticipated to exceed $50,000) the pipeliner arrived at the lake charles pump station at 8:55pm to find that CO2 vapors were being released inside the pump station yard and that the fire department was on-site. The fire department monitored oxygen levels and asked residents to shelter-in-place. The pipeliner suited up in scba and went into the station to activate the emergency shut down (esd) at 9:20pm. The pipeliner verified on the station local control panel that the proper valves had closed, then returned to the gate. Product was still being released, so at approximately 9:45pm, the pipeliner went to the trap area and identified the point of release on the pig launcher. He unlocked the 24 inch and 8 inch valves on the pig launcher and closed these valves. At 10:20pm, the pig launcher and the leak were isolated. At 10:30pm, the fire department monitored oxygen levels around the station and declared all clear to residents who had sheltered in place. On february 25, 2011, 1:45am, the pig launcher was blown down and secure. On february 25, 2011, 7:40am, the pig launcher was blown down. Lock/out tagouts were installed on pig launcher 24 inch and 8 inch isolation valves. The safety bolt on the closure door was removed and the door to the pig launcher was opened. Found o-ring to be cut at the 1 o'clock position. The damaged o-ring was removed. A new o-ring was installed on the trap closure, the closure door was closed and the safety bolt was installed. On february 25, 2011, 8:50am, the 6 inch knock-off cap off of the launcher barrel blowdown stack was removed and the mating surface areas of the knock-off cap and blowdown stack were cleaned. A new o-ring was installed in the knock-off cap and the knock-off cap was installed on the blowdown stack. The needle valve in the top of the knock-off cap was closed and the 1/2 inch plug in the needle valve was installed. Lockout/tagouts from the 24 inch and 8 inch block valves on the pig launcher were removed. Picked up tools and disposed of trash. The lake charles pump station was restarted on february 25, 2011, 2:00pm. |
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