Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2010-11-28 — TX
Operator
Enbridge Offshore (Gas Transmission) Llc
Cause
Corrosion Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$300,000
Incident datetime
2010-11-28 14:14
Report number
Location
TX
Narrative
A sheen was spotted on the water with an occasional bubble 10 to 12 feet in diameter on november 28th at 14:14 hours se of wc 544 platform. The respoonse team was mobilized and the nrc was notified at 15:57 . A dive boat was mobilized (joanne morrison) and arrived on location december 1st at approximately 20:40 hours. The divers confirmed the leak on the pipe at 6 o'clock position december 2nd at appoximately 7:00 hours. A 16" plidco clamp was installed and the line returned to service at 16:15 hours on december 3rd.
Detailed record list
Report Received Date
2010-12-27 00:00:00
Iyear
2010
Report Number
20100108
Supplemental Number
16367
Report Type
Supplemental
Operator Id
18646
Name
Enbridge Offshore (Gas Transmission) Llc
Operator Street Address
1100 Louisiana St. Suite 3300
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2010-11-28 14:14:00
Location Latitude
28.3242
Location Longitude
-93.4567
Nrc Rpt Num
960887
Nrc Rpt Datetime
2010-11-28 15:57:00
Commodity Released Type
Natural Gas
Unintentional Release
1
Intentional Release
2151
Accompanying Liquid
0.16
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2010-11-28 15:57:00
Restart Datetime
2010-12-03 16:15:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2010-11-28 14:14:00
On Site Datetime
2010-12-01 20:40:00
On Off Shore
Offshore
Off Water Depth
195
Off Accident Origin
On The Outer Continental Shelf (Ocs)
Off Ocs Area
West Cameron
Off Ocs Block
543
Off Area Accident Type
Below Water, Pipe On Or Above Seabed
Pipe Facility Type
Interstate
System Part Involved
Offshore Pipeline, Including Riser And Riser Bend
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
16
Pipe Wall Thickness
0.438
Pipe Smys
46000
Pipe Specification
Api 5l-X-46
Pipe Seam Type
Seamless
Pipe Manufacturer
?
Pipe Coating Type
Other
Pipe Coating Details
1 13/64 Concrete And 9/16 Asphalt
Installation Year
1976
Manufactured Year
1976
Material Involved
Carbon Steel
Release Type
Leak
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
1
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
100
Est Cost Intentional Release
8600
Est Cost Prop Damage
300000
Est Cost Emergency
100
Est Cost Other
0
Prpty
308800
Accident Psig
775
Mop Psig
1200
Mop Cfr Section
Not On Omb-Approved Form When Submitted
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Pipeline Function
Offshore Gathering
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Air Patrol
Operator Type
Operator Employee
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
It was a pin hole leak offshore
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
Internal Corrosion
Internal External
Internal Corrosion
Int Visual Exam Results
Localized Pitting
Int Other Corrosion Ind
Yes
Int Corrosion Type Details
Being Investigated At This Time
Int Field Exam Basis Ind
Yes
Int Low Point Pipe Loc Ind
Yes
Corrosion Inhibitors
Yes
Preparer Name
L***** S******
Preparer Title
Compliance Coordinator
Preparer Telephone
832-214-1649
Preparer Fax
985-851-4126
Authorizer Name
L***** S******
Authorizer Title
Compliance Coordinator
Authorizer Telephone
832-214-1649
Authorizer Email
L*************@e*******.com
Narrative
A sheen was spotted on the water with an occasional bubble 10 to 12 feet in diameter on november 28th at 14:14 hours se of wc 544 platform. The respoonse team was mobilized and the nrc was notified at 15:57 . A dive boat was mobilized (joanne morrison) and arrived on location december 1st at approximately 20:40 hours. The divers confirmed the leak on the pipe at 6 o'clock position december 2nd at appoximately 7:00 hours. A 16" plidco clamp was installed and the line returned to service at 16:15 hours on december 3rd.
| Report Received Date | 2010-12-27 00:00:00 |
|---|---|
| Iyear | 2010 |
| Report Number | 20100108 |
| Supplemental Number | 16367 |
| Report Type | Supplemental |
| Operator Id | 18646 PHMSA Enforcement |
| Name | Enbridge Offshore (Gas Transmission) Llc |
| Operator Street Address | 1100 Louisiana St. Suite 3300 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2010-11-28 14:14:00 |
| Location Latitude | 28.3242 Google Maps OpenStreetMap |
| Location Longitude | -93.4567 Google Maps OpenStreetMap |
| Nrc Rpt Num | 960887 NRC Report How to search |
| Nrc Rpt Datetime | 2010-11-28 15:57:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1 |
| Intentional Release | 2151 |
| Accompanying Liquid | 0.16 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2010-11-28 15:57:00 |
| Restart Datetime | 2010-12-03 16:15:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2010-11-28 14:14:00 |
| On Site Datetime | 2010-12-01 20:40:00 |
| On Off Shore | Offshore |
| Off Water Depth | 195 |
| Off Accident Origin | On The Outer Continental Shelf (Ocs) |
| Off Ocs Area | West Cameron |
| Off Ocs Block | 543 |
| Off Area Accident Type | Below Water, Pipe On Or Above Seabed |
| Pipe Facility Type | Interstate |
| System Part Involved | Offshore Pipeline, Including Riser And Riser Bend |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 16 |
| Pipe Wall Thickness | 0.438 |
| Pipe Smys | 46000 |
| Pipe Specification | Api 5l-X-46 |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | ? |
| Pipe Coating Type | Other |
| Pipe Coating Details | 1 13/64 Concrete And 9/16 Asphalt |
| Installation Year | 1976 |
| Manufactured Year | 1976 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 1 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 100 |
| Est Cost Intentional Release | 8600 |
| Est Cost Prop Damage | 300000 |
| Est Cost Emergency | 100 |
| Est Cost Other | 0 |
| Prpty | 308800 |
| Accident Psig | 775 |
| Mop Psig | 1200 |
| Mop Cfr Section | Not On Omb-Approved Form When Submitted View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Pipeline Function | Offshore Gathering |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Air Patrol |
| Operator Type | Operator Employee |
| 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 | It was a pin hole leak offshore |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | Internal Corrosion |
| Internal External | Internal Corrosion |
| Int Visual Exam Results | Localized Pitting |
| Int Other Corrosion Ind | Yes |
| Int Corrosion Type Details | Being Investigated At This Time |
| Int Field Exam Basis Ind | Yes |
| Int Low Point Pipe Loc Ind | Yes |
| Corrosion Inhibitors | Yes |
| Preparer Name | L***** S****** |
| Preparer Title | Compliance Coordinator |
| Preparer Telephone | 832-214-1649 |
| Preparer Fax | 985-851-4126 |
| Authorizer Name | L***** S****** |
| Authorizer Title | Compliance Coordinator |
| Authorizer Telephone | 832-214-1649 |
| Authorizer Email | L*************@e*******.com |
| Narrative | A sheen was spotted on the water with an occasional bubble 10 to 12 feet in diameter on november 28th at 14:14 hours se of wc 544 platform. The respoonse team was mobilized and the nrc was notified at 15:57 . A dive boat was mobilized (joanne morrison) and arrived on location december 1st at approximately 20:40 hours. The divers confirmed the leak on the pipe at 6 o'clock position december 2nd at appoximately 7:00 hours. A 16" plidco clamp was installed and the line returned to service at 16:15 hours on december 3rd. |
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