Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2011-11-08 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$2,300
Incident datetime
2011-11-08 10:10
Report number
Location
TX
Narrative
On november 8, at approximately 10:10 am local time, clearbrook terminal staff discovered oil near the sump re-injection whistle for line 67. The control center was immediately notified and line 67 was shutdown. Approximately 10 barrels of oil had leaked from the 2" braided steel flexible hose. The flex hose was replaced and the line was started later the same day. Further visual examination of the flex hose, after removal of the wire braid, revealed a crack transverse to the axis of the hose. Initial third party analysis indicates the failure mechanism was likely due to high-stress bending fatigue. An internal investigation supported this finding. Cleanup of the site is complete and the 36 cubic yards of contaminated soil was disposed of at an approved site.
Detailed record list
Report Received Date
2011-12-08 00:00:00
Iyear
2011
Report Number
20110440
Supplemental Number
18005
Report Type
Supplemental Final
Operator Id
11169
Name
Enbridge Energy, Limited Partnership
Operator Street Address
915 N Eldridge Parkway, Suite 1100
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77079
Local Datetime
2011-11-08 10:10:00
Location Latitude
47.68889
Location Longitude
-95.41222
Commodity Released Type
Crude Oil
Unintentional Release Bbls
10
Intentional Release Bbls
0
Recovered Bbls
10
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2011-11-08 10:10:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2011-11-08 10:20:00
Restart Datetime
2011-11-08 15:30:00
On Site Datetime
2011-11-08 10:20:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Line 67
Segment Name
Sump Reinjection Line
Onshore State Abbreviation
Mn
Onshore Postal Code
56634
Onshore City Name
Clearbrook
Onshore County Name
Clearwater
Designated Location
Milepost/valve Station
Designated Name
Clbrk Term
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Inside Other Enclosed Space
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Other
Item Involved Details
2" Flexible Hose
Installation Year
2009
Material Involved
Material Other Than Carbon Steel
Material Details
Stainless Steel Braided Hose
Release Type
Leak
Leak Type
Crack
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
0
Est Cost Prop Damage
2300
Est Cost Emergency
3000
Est Cost Environmental
2000
Est Cost Other
0
Prpty
7300
Accident Psig
44
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction 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
Yes, specify investigation result(s): (select all that apply)
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Other Equipment Failure
Eq Failure Type
Other Equipment Failure
Failure Details
Crack In 2" Stainless Steel Braided Flex Hose
Additional Vibration Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Pressure Fluctuations Within The Line
Preparer Name
S**** S****
Preparer Title
Compliance Assistant
Preparer Email
S**********@e*******.com
Preparer Telephone
218-464-5754
Preparer Fax
218-464-5991
Prepared Date
2013-05-07 00:00:00
Authorizer Name
D**** S*******
Authorizer Telephone
218-464-5751
Authorizer Title
Manager Us Pipeline Compliance
Authorizer Email
D*************@e*******.com
Narrative
On november 8, at approximately 10:10 am local time, clearbrook terminal staff discovered oil near the sump re-injection whistle for line 67. The control center was immediately notified and line 67 was shutdown. Approximately 10 barrels of oil had leaked from the 2" braided steel flexible hose. The flex hose was replaced and the line was started later the same day. Further visual examination of the flex hose, after removal of the wire braid, revealed a crack transverse to the axis of the hose. Initial third party analysis indicates the failure mechanism was likely due to high-stress bending fatigue. An internal investigation supported this finding. Cleanup of the site is complete and the 36 cubic yards of contaminated soil was disposed of at an approved site.
| Report Received Date | 2011-12-08 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110440 |
| Supplemental Number | 18005 |
| Report Type | Supplemental Final |
| Operator Id | 11169 PHMSA Enforcement |
| Name | Enbridge Energy, Limited Partnership |
| Operator Street Address | 915 N Eldridge Parkway, Suite 1100 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77079 |
| Local Datetime | 2011-11-08 10:10:00 |
| Location Latitude | 47.68889 Google Maps OpenStreetMap |
| Location Longitude | -95.41222 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 10 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 10 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2011-11-08 10:10:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2011-11-08 10:20:00 |
| Restart Datetime | 2011-11-08 15:30:00 |
| On Site Datetime | 2011-11-08 10:20:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Line 67 |
| Segment Name | Sump Reinjection Line |
| Onshore State Abbreviation | Mn |
| Onshore Postal Code | 56634 |
| Onshore City Name | Clearbrook |
| Onshore County Name | Clearwater |
| Designated Location | Milepost/valve Station |
| Designated Name | Clbrk Term |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Inside Other Enclosed Space |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Other |
| Item Involved Details | 2" Flexible Hose |
| Installation Year | 2009 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Stainless Steel Braided Hose |
| Release Type | Leak |
| Leak Type | Crack |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 0 |
| Est Cost Prop Damage | 2300 |
| Est Cost Emergency | 3000 |
| Est Cost Environmental | 2000 |
| Est Cost Other | 0 |
| Prpty | 7300 |
| Accident Psig | 44 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction 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 | Yes, specify investigation result(s): (select all that apply) |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Other Equipment Failure |
| Eq Failure Type | Other Equipment Failure |
| Failure Details | Crack In 2" Stainless Steel Braided Flex Hose |
| Additional Vibration Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Pressure Fluctuations Within The Line |
| Preparer Name | S**** S**** |
| Preparer Title | Compliance Assistant |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 218-464-5754 |
| Preparer Fax | 218-464-5991 |
| Prepared Date | 2013-05-07 00:00:00 |
| Authorizer Name | D**** S******* |
| Authorizer Telephone | 218-464-5751 |
| Authorizer Title | Manager Us Pipeline Compliance |
| Authorizer Email | D*************@e*******.com |
| Narrative | On november 8, at approximately 10:10 am local time, clearbrook terminal staff discovered oil near the sump re-injection whistle for line 67. The control center was immediately notified and line 67 was shutdown. Approximately 10 barrels of oil had leaked from the 2" braided steel flexible hose. The flex hose was replaced and the line was started later the same day. Further visual examination of the flex hose, after removal of the wire braid, revealed a crack transverse to the axis of the hose. Initial third party analysis indicates the failure mechanism was likely due to high-stress bending fatigue. An internal investigation supported this finding. Cleanup of the site is complete and the 36 cubic yards of contaminated soil was disposed of at an approved site. |
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