Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2011-07-20 — TX
Operator
Transcanada Northern Border Inc
Cause
Material Failure Of Pipe Or Weld
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$4,280,685
Incident datetime
2011-07-20 20:15
Report number
Location
TX
Narrative
The bison pipeline experienced a rupture failure at approximate milepost 16.2 in campbell county, wyoming, at about 1930 hours on july 20, 2011. There area of the failure was remote from roads or structures resulting in damage restricted to the pipeline right-of-way. There were no injuries or fatalities. Preliminary examination of the pipe in the field and laboratory has indicated that the failure may have been the result of mechanical damage incurred during pipeline installation. The results of the studies have been finalized and have been submitted under separate cover, as part of the corrective action order.
Detailed record list
Report Received Date
2011-08-16 00:00:00
Iyear
2011
Report Number
20110294
Supplemental Number
15608
Report Type
Supplemental Final
Operator Id
32487
Name
Transcanada Northern Border Inc
Operator Street Address
700 Louisiana St Suite 700
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2011-07-20 19:30:00
Location Latitude
44.39328
Location Longitude
-105.8387
Nrc Rpt Num
983351
Nrc Rpt Datetime
2011-07-21 00:13:00
Commodity Released Type
Natural Gas
Unintentional Release
50555
Intentional Release
41938
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2011-07-20 19:40:00
Restart Datetime
2011-08-05 19:30:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2011-07-20 20:15:00
On Site Datetime
2011-07-20 20:15:00
On Off Shore
Onshore
Onshore State Abbreviation
Wy
Onshore Postal Code
82716
Onshore City Name
Gillette
Onshore County Name
Campbell
Designated Location
Milepost
Designated Name
16.2
Pipe Fac Name
Bison Pipeline
Segment Name
Mlv 0 - Mlv 17
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Crossing
No
Pipe Facility Type
Interstate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
30
Pipe Wall Thickness
0.438
Pipe Smys
70000
Pipe Specification
Api 5l
Pipe Seam Type
Single Saw
Pipe Manufacturer
Welspun
Pipe Coating Type
Epoxy
Installation Year
2010
Manufactured Year
2007
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Longitudinal
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
846
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
234550
Est Cost Intentional Release
184765
Est Cost Prop Damage
4280685
Est Cost Emergency
10000
Est Cost Other
1990000
Est Cost Other Details
Testing And Contingencies
Prpty
6700000
Accident Psig
1340
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
Automatic
Downstream Valve Type Ind
Automatic
Length Segment Isolated
96626
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Accident Identifier
Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations)
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
Controller saw scada information showing unexpected pressure drop on bison pipeline and contacted upstream supplier. After contacting field operations, controller recontacted upstream supplier of continued pressure loss , who shut in their compression, dropping flow into bison pipeline to zero.
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
Metallurgical Ind
Yes
Other Factor
Yes
Other Factor Details
Installation-Related Damage Suspected During Backfill
Additional Dent Ind
Yes
Additional Gouge Ind
Yes
Additional Crack Ind
Yes
Collected Data Ind
Yes
Other Tool Tech Ind
Yes
Other Tool
Combination Tool
Other Recent Year
2011
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
L**** S******
Preparer Title
Regulatory Compliance Engineer-Specialist
Preparer Email
L************@t**********.com
Preparer Telephone
832-320-5305
Authorizer Name
L**** S******
Authorizer Title
Regulatory Compliance Engineer-Specialist
Authorizer Telephone
832-320-5305
Authorizer Email
L************@t**********.com
Narrative
The bison pipeline experienced a rupture failure at approximate milepost 16.2 in campbell county, wyoming, at about 1930 hours on july 20, 2011. There area of the failure was remote from roads or structures resulting in damage restricted to the pipeline right-of-way. There were no injuries or fatalities. Preliminary examination of the pipe in the field and laboratory has indicated that the failure may have been the result of mechanical damage incurred during pipeline installation. The results of the studies have been finalized and have been submitted under separate cover, as part of the corrective action order.
| Report Received Date | 2011-08-16 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110294 |
| Supplemental Number | 15608 |
| Report Type | Supplemental Final |
| Operator Id | 32487 PHMSA Enforcement |
| Name | Transcanada Northern Border Inc |
| Operator Street Address | 700 Louisiana St Suite 700 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2011-07-20 19:30:00 |
| Location Latitude | 44.39328 Google Maps OpenStreetMap |
| Location Longitude | -105.8387 Google Maps OpenStreetMap |
| Nrc Rpt Num | 983351 NRC Report How to search |
| Nrc Rpt Datetime | 2011-07-21 00:13:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 50555 |
| Intentional Release | 41938 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2011-07-20 19:40:00 |
| Restart Datetime | 2011-08-05 19:30:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2011-07-20 20:15:00 |
| On Site Datetime | 2011-07-20 20:15:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Wy |
| Onshore Postal Code | 82716 |
| Onshore City Name | Gillette |
| Onshore County Name | Campbell |
| Designated Location | Milepost |
| Designated Name | 16.2 |
| Pipe Fac Name | Bison Pipeline |
| Segment Name | Mlv 0 - Mlv 17 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Crossing | No |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 30 |
| Pipe Wall Thickness | 0.438 |
| Pipe Smys | 70000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Single Saw |
| Pipe Manufacturer | Welspun |
| Pipe Coating Type | Epoxy |
| Installation Year | 2010 |
| Manufactured Year | 2007 |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Longitudinal |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 846 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 234550 |
| Est Cost Intentional Release | 184765 |
| Est Cost Prop Damage | 4280685 |
| Est Cost Emergency | 10000 |
| Est Cost Other | 1990000 |
| Est Cost Other Details | Testing And Contingencies |
| Prpty | 6700000 |
| Accident Psig | 1340 |
| 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 | Automatic |
| Downstream Valve Type Ind | Automatic |
| Length Segment Isolated | 96626 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Accident Identifier | Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations) |
| 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 | Controller saw scada information showing unexpected pressure drop on bison pipeline and contacted upstream supplier. After contacting field operations, controller recontacted upstream supplier of continued pressure loss , who shut in their compression, dropping flow into bison pipeline to zero. |
| 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 |
| Metallurgical Ind | Yes |
| Other Factor | Yes |
| Other Factor Details | Installation-Related Damage Suspected During Backfill |
| Additional Dent Ind | Yes |
| Additional Gouge Ind | Yes |
| Additional Crack Ind | Yes |
| Collected Data Ind | Yes |
| Other Tool Tech Ind | Yes |
| Other Tool | Combination Tool |
| Other Recent Year | 2011 |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | L**** S****** |
| Preparer Title | Regulatory Compliance Engineer-Specialist |
| Preparer Email | L************@t**********.com |
| Preparer Telephone | 832-320-5305 |
| Authorizer Name | L**** S****** |
| Authorizer Title | Regulatory Compliance Engineer-Specialist |
| Authorizer Telephone | 832-320-5305 |
| Authorizer Email | L************@t**********.com |
| Narrative | The bison pipeline experienced a rupture failure at approximate milepost 16.2 in campbell county, wyoming, at about 1930 hours on july 20, 2011. There area of the failure was remote from roads or structures resulting in damage restricted to the pipeline right-of-way. There were no injuries or fatalities. Preliminary examination of the pipe in the field and laboratory has indicated that the failure may have been the result of mechanical damage incurred during pipeline installation. The results of the studies have been finalized and have been submitted under separate cover, as part of the corrective action order. |
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