Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2014-10-13 — TX
Operator
Mid - Valley Pipeline Co
Cause
Material Failure Of Pipe Or Weld
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$621,597
Incident datetime
2014-10-13 08:00
Report number
Location
TX
Narrative
At approximately 08:00 on october 13, 2014 a pressure drop and high flow indication was received by the control center on the longview to haynesville segment of the mid valley pipeline (mvpl). Control center shut down the pump units and closed motor operated valves at mp 30 and 55. Field personnel were notified immediately and were dispatched to investigate. Heavy weather in the area at the time hampered the field investigation. At approximately 10:30 field personnel identified crude on tete bayou. At approximately 11:44 the failure site was identified and confirmed. At 13:17 nrc report no. 1098151 was filed. Subsequent to this nrc report another report was filed (1098153) at 13:32 with an updated estimated volume released. Upon excavation a failure of the pipe body located at the 6 o'clock position of unknown cause was identified. The failed section of pipe was cut out and preserved for metallurgical analysis on october 20, 2014. Replacement pipe was installed on the same date. On october 25,2014 the line segment was successfully hydrostatically pressure tested for eight (8) hours from mp 37.2 to mp 62.8 prior to restart per PHMSA issued corrective action order (cao). Pipeline was restarted at approximately 09:50 on october 26, 2014 under a 20% reduction in operating pressure per the PHMSA issued cao. Line continues to operate under this pressure reduction. The results of the metallurgical analysis indicates that the pipe section ruptured at a colony of axially-oriented and interlinked near-neutral-ph stress corrosion cracks that were located within an area of external corrosion at the 6:00 orientation.
Detailed record list
Report Received Date
2014-11-11 00:00:00
Iyear
2014
Report Number
20140394
Supplemental Number
20201
Report Type
Supplemental Final
Operator Id
12470
Name
Mid - Valley Pipeline Co
Operator Street Address
1300 Main Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2014-10-13 08:00:00
Location Latitude
32.652787
Location Longitude
-93.981854
Commodity Released Type
Crude Oil
Unintentional Release Bbls
4509
Recovered Bbls
4069
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations)
Incident Identified Datetime
2014-10-13 08:00:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2014-10-13 08:02:00
Restart Datetime
2014-10-26 09:50:00
On Site Datetime
2014-10-13 10:30:00
Nrc Rpt Datetime
2014-10-13 13:17:00
Nrc Rpt Num
1098151
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
6
Pipe Fac Name
Mid Valley Pipeline
Segment Name
26001-20" Longview To Mayersville
Onshore State Abbreviation
La
Onshore Postal Code
71060
Onshore City Name
Mooringsport
Onshore County Name
Caddo
Designated Location
Milepost/valve Station
Designated Name
Mp 51.5
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
68
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
20
Pipe Wall Thickness
0.25
Pipe Smys
52000
Pipe Specification
Api 5l
Pipe Seam Type
Flash Welded
Pipe Manufacturer
A.o. Smith
Pipe Coating Type
Coal Tar
Installation Year
1950
Manufactured Year
1950
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Longitudinal
Rupture Width
9
Rupture Length
30
Wildlife Impact Ind
Yes
Fish Aquatic Impact Ind
Yes
Birds Impact Ind
Yes
Terrestrial Impact Ind
Yes
Soil Contamination
Yes
Long Term Assessment
Yes
Remediation Ind
Yes
Surface Water Remed Ind
Yes
Soil Remed Ind
Yes
Vegetation Remed Ind
Yes
Wildlife Remed Ind
Yes
Water Contam Ind
Yes
Surface Contam Ind
Yes
Amount Released
4000
Rel Water Name
Tete Bayou
Could Be Hca
Yes
Commodity Reached Hca
Yes
Usa Drinking Ind
Yes
Usa Drinking Yes No
Yes
Est Cost Oper Paid
2421000
Est Cost Gas Released
36190
Est Cost Prop Damage
621597
Est Cost Emergency
8224000
Est Cost Environmental
400000
Est Cost Other
0
Prpty
11702787
Accident Psig
750
Mop Psig
936
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
132000
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Cpm In Place Ind
No
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest Schedule Ind
Yes
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Environmental Cracking-Related
Metallurgical Ind
Yes
Failure Type
Environmental Cracking-Related
Stress Subtype
Stress Corrosion Cracking
Additional Crack Ind
Yes
Collected Data Ind
Yes
Emat Ind
Yes
Emat Recent Year
2014
Other Recent Year
2010
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
T*** G* N*******
Preparer Title
Dot Compliance Manager
Preparer Email
T*********@s**************.com
Preparer Telephone
281-637-6576
Preparer Fax
877-917-0448
Prepared Date
2015-03-03 00:00:00
Authorizer Name
T*** G* N*******
Authorizer Telephone
281-637-6576
Authorizer Title
Dot Compliance Manager
Authorizer Email
T*********@s**************.com
Narrative
At approximately 08:00 on october 13, 2014 a pressure drop and high flow indication was received by the control center on the longview to haynesville segment of the mid valley pipeline (mvpl). Control center shut down the pump units and closed motor operated valves at mp 30 and 55. Field personnel were notified immediately and were dispatched to investigate. Heavy weather in the area at the time hampered the field investigation. At approximately 10:30 field personnel identified crude on tete bayou. At approximately 11:44 the failure site was identified and confirmed. At 13:17 nrc report no. 1098151 was filed. Subsequent to this nrc report another report was filed (1098153) at 13:32 with an updated estimated volume released. Upon excavation a failure of the pipe body located at the 6 o'clock position of unknown cause was identified. The failed section of pipe was cut out and preserved for metallurgical analysis on october 20, 2014. Replacement pipe was installed on the same date. On october 25,2014 the line segment was successfully hydrostatically pressure tested for eight (8) hours from mp 37.2 to mp 62.8 prior to restart per PHMSA issued corrective action order (cao). Pipeline was restarted at approximately 09:50 on october 26, 2014 under a 20% reduction in operating pressure per the PHMSA issued cao. Line continues to operate under this pressure reduction. The results of the metallurgical analysis indicates that the pipe section ruptured at a colony of axially-oriented and interlinked near-neutral-ph stress corrosion cracks that were located within an area of external corrosion at the 6:00 orientation.
| Report Received Date | 2014-11-11 00:00:00 |
|---|---|
| Iyear | 2014 |
| Report Number | 20140394 |
| Supplemental Number | 20201 |
| Report Type | Supplemental Final |
| Operator Id | 12470 PHMSA Enforcement |
| Name | Mid - Valley Pipeline Co |
| Operator Street Address | 1300 Main Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2014-10-13 08:00:00 |
| Location Latitude | 32.652787 Google Maps OpenStreetMap |
| Location Longitude | -93.981854 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 4509 |
| Recovered Bbls | 4069 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations) |
| Incident Identified Datetime | 2014-10-13 08:00:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2014-10-13 08:02:00 |
| Restart Datetime | 2014-10-26 09:50:00 |
| On Site Datetime | 2014-10-13 10:30:00 |
| Nrc Rpt Datetime | 2014-10-13 13:17:00 |
| Nrc Rpt Num | 1098151 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Valve Type Ind | Remotely Controlled |
| Num Pub Evacuated | 6 |
| Pipe Fac Name | Mid Valley Pipeline |
| Segment Name | 26001-20" Longview To Mayersville |
| Onshore State Abbreviation | La |
| Onshore Postal Code | 71060 |
| Onshore City Name | Mooringsport |
| Onshore County Name | Caddo |
| Designated Location | Milepost/valve Station |
| Designated Name | Mp 51.5 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 68 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 20 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 52000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Flash Welded |
| Pipe Manufacturer | A.o. Smith |
| Pipe Coating Type | Coal Tar |
| Installation Year | 1950 |
| Manufactured Year | 1950 |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Longitudinal |
| Rupture Width | 9 |
| Rupture Length | 30 |
| Wildlife Impact Ind | Yes |
| Fish Aquatic Impact Ind | Yes |
| Birds Impact Ind | Yes |
| Terrestrial Impact Ind | Yes |
| Soil Contamination | Yes |
| Long Term Assessment | Yes |
| Remediation Ind | Yes |
| Surface Water Remed Ind | Yes |
| Soil Remed Ind | Yes |
| Vegetation Remed Ind | Yes |
| Wildlife Remed Ind | Yes |
| Water Contam Ind | Yes |
| Surface Contam Ind | Yes |
| Amount Released | 4000 |
| Rel Water Name | Tete Bayou |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| Usa Drinking Ind | Yes |
| Usa Drinking Yes No | Yes |
| Est Cost Oper Paid | 2421000 |
| Est Cost Gas Released | 36190 |
| Est Cost Prop Damage | 621597 |
| Est Cost Emergency | 8224000 |
| Est Cost Environmental | 400000 |
| Est Cost Other | 0 |
| Prpty | 11702787 |
| Accident Psig | 750 |
| Mop Psig | 936 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 132000 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place Ind | No |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest Schedule Ind | Yes |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Environmental Cracking-Related |
| Metallurgical Ind | Yes |
| Failure Type | Environmental Cracking-Related |
| Stress Subtype | Stress Corrosion Cracking |
| Additional Crack Ind | Yes |
| Collected Data Ind | Yes |
| Emat Ind | Yes |
| Emat Recent Year | 2014 |
| Other Recent Year | 2010 |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | T*** G* N******* |
| Preparer Title | Dot Compliance Manager |
| Preparer Email | T*********@s**************.com |
| Preparer Telephone | 281-637-6576 |
| Preparer Fax | 877-917-0448 |
| Prepared Date | 2015-03-03 00:00:00 |
| Authorizer Name | T*** G* N******* |
| Authorizer Telephone | 281-637-6576 |
| Authorizer Title | Dot Compliance Manager |
| Authorizer Email | T*********@s**************.com |
| Narrative | At approximately 08:00 on october 13, 2014 a pressure drop and high flow indication was received by the control center on the longview to haynesville segment of the mid valley pipeline (mvpl). Control center shut down the pump units and closed motor operated valves at mp 30 and 55. Field personnel were notified immediately and were dispatched to investigate. Heavy weather in the area at the time hampered the field investigation. At approximately 10:30 field personnel identified crude on tete bayou. At approximately 11:44 the failure site was identified and confirmed. At 13:17 nrc report no. 1098151 was filed. Subsequent to this nrc report another report was filed (1098153) at 13:32 with an updated estimated volume released. Upon excavation a failure of the pipe body located at the 6 o'clock position of unknown cause was identified. The failed section of pipe was cut out and preserved for metallurgical analysis on october 20, 2014. Replacement pipe was installed on the same date. On october 25,2014 the line segment was successfully hydrostatically pressure tested for eight (8) hours from mp 37.2 to mp 62.8 prior to restart per PHMSA issued corrective action order (cao). Pipeline was restarted at approximately 09:50 on october 26, 2014 under a 20% reduction in operating pressure per the PHMSA issued cao. Line continues to operate under this pressure reduction. The results of the metallurgical analysis indicates that the pipe section ruptured at a colony of axially-oriented and interlinked near-neutral-ph stress corrosion cracks that were located within an area of external corrosion at the 6:00 orientation. |
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