Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2013-01-15 — TX
Operator
Tennessee Gas Pipeline Company
Cause
Material Failure Of Pipe Or Weld
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$962,206
Incident datetime
2013-01-15 12:45
Report number
Location
TX
Narrative
Third party producer noticed small pressure reduction issues on platform. Notified tgp. Tgp scada did not show any pressures outside normal parameters. Producer subsequently identified bubbles on surface and provided coordinates to tgp. Bubbles located by aircraft pilot with gps coordinates near the 821e-100 line in high island block 39. Initial actions / report: isolated line 821e-100 line by shutting in two flowing producers and mainline valve at sabine pass 18 cg. Subsequent investigation found a crack on 6" saddle at sub-sea tie-in. Repair part has nine week lead time. Provided a notice to mariners with the port arthur coast guard on january 20th. Gas blanket will be maintained on pipeline to prevent oil in line from escaping. As a result gas will continue to be released until repair can be made. Final gas volume released will be calculated at that time. Update / final report: the repairs were been completed on april 25, 2013 and the pipeline was put back into service on april 30, 2013.
Detailed record list
Report Received Date
2013-02-13 00:00:00
Iyear
2013
Report Number
20130015
Supplemental Number
15971
Report Type
Supplemental Final
Operator Id
19160
Name
Tennessee Gas Pipeline Company
Operator Street Address
1001 Louisiana St
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2013-01-15 12:45:00
Location Latitude
29.4858333
Location Longitude
-93.7931667
Nrc Rpt Num
1035785
Nrc Rpt Datetime
2013-01-15 14:45:00
Commodity Released Type
Natural Gas
Unintentional Release
1000
Intentional Release
93418.8
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2013-01-15 12:45:00
Restart Datetime
2013-04-30 16:00:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2013-01-15 12:45:00
On Site Datetime
2013-01-15 13:00:00
On Off Shore
Offshore
Off Water Depth
40
Off Accident Origin
On The Outer Continental Shelf (Ocs)
Off Ocs Area
High Island
Off Ocs Block
39
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
Tap Fitting(Stopple, Thread-O-Ring, Weld-O-Let, Etc.)
Weld Details
Cracked Weld On Saddle Connection
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Crack
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
628
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
3760
Est Cost Intentional Release
351255
Est Cost Prop Damage
962206
Est Cost Emergency
107816
Est Cost Other
0
Prpty
1425037
Accident Psig
1000
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
24585
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
Sub Sea Tie-In
Operation Complications Ind
Yes
Other Complications Ind
Yes
Inspect Comp Details
Sub Sea Tie-In
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
Notification From Third Party Producer
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
Pressures were within normal operating ranges; no abnormal excursions.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Design-, Construction-, Installation-, Or Fabrication-Related
Pwjf Failure Type
Design-, Construction-, Installation-, Or Fabrication-Related
Field Exam Ind
Yes
Other Factor
Yes
Other Factor Details
Weld Defect During Original Construction.
Additional Crack Ind
Yes
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
K****** V** D** L***
Preparer Title
Compliance Engineer Iii
Preparer Email
K*****************@k***********.com
Preparer Telephone
303-914-7753
Authorizer Name
R*** G*****
Authorizer Title
Director - Compliance Codes And Standards
Authorizer Telephone
713-420-5433
Authorizer Email
R**********@k***********.com
Narrative
Third party producer noticed small pressure reduction issues on platform. Notified tgp. Tgp scada did not show any pressures outside normal parameters. Producer subsequently identified bubbles on surface and provided coordinates to tgp. Bubbles located by aircraft pilot with gps coordinates near the 821e-100 line in high island block 39. Initial actions / report: isolated line 821e-100 line by shutting in two flowing producers and mainline valve at sabine pass 18 cg. Subsequent investigation found a crack on 6" saddle at sub-sea tie-in. Repair part has nine week lead time. Provided a notice to mariners with the port arthur coast guard on january 20th. Gas blanket will be maintained on pipeline to prevent oil in line from escaping. As a result gas will continue to be released until repair can be made. Final gas volume released will be calculated at that time. Update / final report: the repairs were been completed on april 25, 2013 and the pipeline was put back into service on april 30, 2013.
| Report Received Date | 2013-02-13 00:00:00 |
|---|---|
| Iyear | 2013 |
| Report Number | 20130015 |
| Supplemental Number | 15971 |
| Report Type | Supplemental Final |
| Operator Id | 19160 PHMSA Enforcement |
| Name | Tennessee Gas Pipeline Company |
| Operator Street Address | 1001 Louisiana St |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2013-01-15 12:45:00 |
| Location Latitude | 29.4858333 Google Maps OpenStreetMap |
| Location Longitude | -93.7931667 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1035785 NRC Report How to search |
| Nrc Rpt Datetime | 2013-01-15 14:45:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1000 |
| Intentional Release | 93418.8 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2013-01-15 12:45:00 |
| Restart Datetime | 2013-04-30 16:00:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2013-01-15 12:45:00 |
| On Site Datetime | 2013-01-15 13:00:00 |
| On Off Shore | Offshore |
| Off Water Depth | 40 |
| Off Accident Origin | On The Outer Continental Shelf (Ocs) |
| Off Ocs Area | High Island |
| Off Ocs Block | 39 |
| 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 | Tap Fitting(Stopple, Thread-O-Ring, Weld-O-Let, Etc.) |
| Weld Details | Cracked Weld On Saddle Connection |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Crack |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 628 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 3760 |
| Est Cost Intentional Release | 351255 |
| Est Cost Prop Damage | 962206 |
| Est Cost Emergency | 107816 |
| Est Cost Other | 0 |
| Prpty | 1425037 |
| Accident Psig | 1000 |
| 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 | 24585 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | Sub Sea Tie-In |
| Operation Complications Ind | Yes |
| Other Complications Ind | Yes |
| Inspect Comp Details | Sub Sea Tie-In |
| 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 | Notification From Third Party Producer |
| 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 | Pressures were within normal operating ranges; no abnormal excursions. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Design-, Construction-, Installation-, Or Fabrication-Related |
| Pwjf Failure Type | Design-, Construction-, Installation-, Or Fabrication-Related |
| Field Exam Ind | Yes |
| Other Factor | Yes |
| Other Factor Details | Weld Defect During Original Construction. |
| Additional Crack Ind | Yes |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | K****** V** D** L*** |
| Preparer Title | Compliance Engineer Iii |
| Preparer Email | K*****************@k***********.com |
| Preparer Telephone | 303-914-7753 |
| Authorizer Name | R*** G***** |
| Authorizer Title | Director - Compliance Codes And Standards |
| Authorizer Telephone | 713-420-5433 |
| Authorizer Email | R**********@k***********.com |
| Narrative | Third party producer noticed small pressure reduction issues on platform. Notified tgp. Tgp scada did not show any pressures outside normal parameters. Producer subsequently identified bubbles on surface and provided coordinates to tgp. Bubbles located by aircraft pilot with gps coordinates near the 821e-100 line in high island block 39. Initial actions / report: isolated line 821e-100 line by shutting in two flowing producers and mainline valve at sabine pass 18 cg. Subsequent investigation found a crack on 6" saddle at sub-sea tie-in. Repair part has nine week lead time. Provided a notice to mariners with the port arthur coast guard on january 20th. Gas blanket will be maintained on pipeline to prevent oil in line from escaping. As a result gas will continue to be released until repair can be made. Final gas volume released will be calculated at that time. Update / final report: the repairs were been completed on april 25, 2013 and the pipeline was put back into service on april 30, 2013. |
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