Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2010-06-20 — TX
Operator
Texas Eastern Transmission Lp (Spectra Energy Corp)
Cause
Corrosion Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$700,000
Incident datetime
2010-06-20 12:00
Report number
Location
TX
Narrative
A third party platform operator observed bubbles on the surface in the gulf of mexico in west cameron block 513 about 100 miles south of cameron, louisiana. On june 20, 2010, spectra energy personnel confirmed the natural gas leak was on the texas eastern transmission, lp 20-inch line 41-a-6. The water depth at the leak site was approximately 165 feet. After concrete coating was removed, the source of the leak was determined to be a pin hole in the pipe wall. Ultrasonic testing results showed no wall loss outside the immediate area of the pin hole. The most likely cause of the leak was determined to be internal corrosion near a girth weld.
Detailed record list
Report Received Date
2010-07-19 00:00:00
Iyear
2010
Report Number
20100042
Supplemental Number
15047
Report Type
Original Final
Operator Id
19235
Name
Texas Eastern Transmission Lp (Spectra Energy Corp)
Operator Street Address
5400 Westheimer Court
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77056
Local Datetime
2010-06-20 12:00:00
Location Latitude
28.44194
Location Longitude
-93.19501
Nrc Rpt Num
944805
Nrc Rpt Datetime
2010-06-20 17:49:00
Commodity Released Type
Natural Gas
Unintentional Release
424
Intentional Release
22615
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2010-06-20 12:00:00
Restart Datetime
2010-06-29 10:15:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2010-06-20 12:00:00
On Site Datetime
2010-06-20 12:00:00
On Off Shore
Offshore
Off Water Depth
165
Off Accident Origin
On The Outer Continental Shelf (Ocs)
Off Ocs Area
West Cameron
Off Ocs Block
513
Off Area Accident Type
Below Water, Pipe Buried Or Jetted Below Seabed
Pipe Facility Type
Interstate
System Part Involved
Offshore Pipeline, Including Riser And Riser Bend
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
20
Pipe Wall Thickness
0.406
Pipe Smys
52000
Pipe Specification
Girth Weld Smaw
Pipe Seam Type
Seamless
Pipe Manufacturer
U S Steel
Pipe Coating Type
Other
Pipe Coating Details
Concrete And Somastic
Installation Year
1975
Manufactured Year
1975
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
524
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
2968
Est Cost Intentional Release
158300
Est Cost Prop Damage
700000
Est Cost Emergency
0
Est Cost Other
0
Prpty
861268
Accident Psig
899
Mop Psig
1440
Mop Cfr Section
Not On Omb-Approved Form When Submitted
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
81629
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
No Platforms From Which To Launch And Receive Tools
Operation Complications Ind
Yes
Other Complications Ind
Yes
Inspect Comp Details
No Platforms From Which To Launch/receiv
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Other
Accident Details
Third Party (Platform Operator) Observation
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 leak was too small to be identified by control room personnel. A review of operating records found abnormal operating conditions did not cause or contribute to this incident.
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 Water Acid Ind
Yes
Int Field Exam Basis Ind
Yes
Int Other Loc Ind
Yes
Corrosion Location Details
Adjacent To Girth Weld
Corrosion Inhibitors
Yes
Corrosion Lining
No
Cleaning Dewatering
No
Corrosion Coupons
Yes
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
D***** T**********
Preparer Title
Principal Engineer
Preparer Email
D************@s************.com
Preparer Telephone
713-627-5573
Preparer Fax
713-386-4468
Authorizer Name
R*** K*****
Authorizer Title
Director - Operational Compliance
Authorizer Telephone
713-627-6388
Authorizer Email
R*******@s************.com
Narrative
A third party platform operator observed bubbles on the surface in the gulf of mexico in west cameron block 513 about 100 miles south of cameron, louisiana. On june 20, 2010, spectra energy personnel confirmed the natural gas leak was on the texas eastern transmission, lp 20-inch line 41-a-6. The water depth at the leak site was approximately 165 feet. After concrete coating was removed, the source of the leak was determined to be a pin hole in the pipe wall. Ultrasonic testing results showed no wall loss outside the immediate area of the pin hole. The most likely cause of the leak was determined to be internal corrosion near a girth weld.
| Report Received Date | 2010-07-19 00:00:00 |
|---|---|
| Iyear | 2010 |
| Report Number | 20100042 |
| Supplemental Number | 15047 |
| Report Type | Original Final |
| Operator Id | 19235 PHMSA Enforcement |
| Name | Texas Eastern Transmission Lp (Spectra Energy Corp) |
| Operator Street Address | 5400 Westheimer Court |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77056 |
| Local Datetime | 2010-06-20 12:00:00 |
| Location Latitude | 28.44194 Google Maps OpenStreetMap |
| Location Longitude | -93.19501 Google Maps OpenStreetMap |
| Nrc Rpt Num | 944805 NRC Report How to search |
| Nrc Rpt Datetime | 2010-06-20 17:49:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 424 |
| Intentional Release | 22615 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2010-06-20 12:00:00 |
| Restart Datetime | 2010-06-29 10:15:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2010-06-20 12:00:00 |
| On Site Datetime | 2010-06-20 12:00:00 |
| On Off Shore | Offshore |
| Off Water Depth | 165 |
| Off Accident Origin | On The Outer Continental Shelf (Ocs) |
| Off Ocs Area | West Cameron |
| Off Ocs Block | 513 |
| Off Area Accident Type | Below Water, Pipe Buried Or Jetted Below Seabed |
| Pipe Facility Type | Interstate |
| System Part Involved | Offshore Pipeline, Including Riser And Riser Bend |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 20 |
| Pipe Wall Thickness | 0.406 |
| Pipe Smys | 52000 |
| Pipe Specification | Girth Weld Smaw |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | U S Steel |
| Pipe Coating Type | Other |
| Pipe Coating Details | Concrete And Somastic |
| Installation Year | 1975 |
| Manufactured Year | 1975 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 524 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 2968 |
| Est Cost Intentional Release | 158300 |
| Est Cost Prop Damage | 700000 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Prpty | 861268 |
| Accident Psig | 899 |
| Mop Psig | 1440 |
| 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 |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 81629 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | No Platforms From Which To Launch And Receive Tools |
| Operation Complications Ind | Yes |
| Other Complications Ind | Yes |
| Inspect Comp Details | No Platforms From Which To Launch/receiv |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Other |
| Accident Details | Third Party (Platform Operator) Observation |
| 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 leak was too small to be identified by control room personnel. A review of operating records found abnormal operating conditions did not cause or contribute to this incident. |
| 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 Water Acid Ind | Yes |
| Int Field Exam Basis Ind | Yes |
| Int Other Loc Ind | Yes |
| Corrosion Location Details | Adjacent To Girth Weld |
| Corrosion Inhibitors | Yes |
| Corrosion Lining | No |
| Cleaning Dewatering | No |
| Corrosion Coupons | Yes |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | D***** T********** |
| Preparer Title | Principal Engineer |
| Preparer Email | D************@s************.com |
| Preparer Telephone | 713-627-5573 |
| Preparer Fax | 713-386-4468 |
| Authorizer Name | R*** K***** |
| Authorizer Title | Director - Operational Compliance |
| Authorizer Telephone | 713-627-6388 |
| Authorizer Email | R*******@s************.com |
| Narrative | A third party platform operator observed bubbles on the surface in the gulf of mexico in west cameron block 513 about 100 miles south of cameron, louisiana. On june 20, 2010, spectra energy personnel confirmed the natural gas leak was on the texas eastern transmission, lp 20-inch line 41-a-6. The water depth at the leak site was approximately 165 feet. After concrete coating was removed, the source of the leak was determined to be a pin hole in the pipe wall. Ultrasonic testing results showed no wall loss outside the immediate area of the pin hole. The most likely cause of the leak was determined to be internal corrosion near a girth weld. |
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