Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2011-05-26 — TX
Operator
Enterprise Products Operating Llc
Cause
Material Failure Of Pipe Or Weld
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$58,000
Incident datetime
2011-05-26 12:54
Report number
Location
TX
Narrative
Line 9122 hwy 887 to adkins ruptured at approximately 12:54pm on may 26, 2011. The control center was notified by a rancher that was in the vicinity of the pipeline when the rupture occurred. Field operations was immediately dispatched to the incident. At 13:30 field operations started making valve isolations. County emergency response personnel were already at the incident when enterprise field operations arrived. The area was immediately secured. After securing the area, enterprise products started an incident investigation and the pipe associated with the incident was sent to a metallurgy lab for analysis. Supplemental comments: metallurgy testing and analysis was conducted by stork metallurgy and testing in houston, tx. The results were inconclusive. Supplemental comments 1-30-12 enterprise products has completed an inline inspection (mfl) on the north section of line 9122, from hwy 887 to the end of the pipeline. The north section was also hydrotested to 1.5 times maop. The south section of the pipeline was hydrotested in 2006 as a part of the integrity management program. Mfl and hydrotest data have been reviewed by the railroad commission of texas as a part of their investigation. On completion of the hydrotest the pipeline was returned to service at it's original maop of 612 psig. Supplemental final 7-11-13 corrected the smys of the pipeline to be x46 in part c. Supplement final 9-24-13 corrected the apparant cause in part g to "material failure of pipe or weld" per further discussion with PHMSA. Since the time of the incident, both an ili tool run and hydrotest (pressure test) have been conducted on line 9122. There was one failure during the pressure test and the metallurgical analysis indicated that the hydrotest failure was caused by a "hook crack in the seam".
Detailed record list
Report Received Date
2011-06-24 00:00:00
Iyear
2011
Report Number
20110202
Supplemental Number
16148
Report Type
Supplemental Final
Operator Id
31618
Name
Enterprise Products Operating Llc
Operator Street Address
1100 Louisiana Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2011-05-26 12:54:00
Location Latitude
29.22203
Location Longitude
-98.09699
Nrc Rpt Num
977497
Nrc Rpt Datetime
2011-05-26 14:00:00
Commodity Released Type
Natural Gas
Unintentional Release
14395
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2011-05-26 13:30:00
Restart Datetime
2011-05-28 13:15:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2011-05-26 12:54:00
On Site Datetime
2011-05-26 13:30:00
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
78114
Onshore City Name
Floresville
Onshore County Name
Wilson
Pipe Fac Name
Hwy 887 To Adkins
Segment Name
9122
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
48
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Seam
Pipe Diameter
20
Pipe Wall Thickness
0.25
Pipe Smys
46000
Pipe Specification
Api5l
Pipe Seam Type
Longitudinal Erw - Low Frequency
Pipe Manufacturer
Youngstown Steel
Pipe Coating Type
Coal Tar
Installation Year
1950
Manufactured Year
1949
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Longitudinal
Rupture Length
480
Rupture Width
10
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
398
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
57580
Est Cost Intentional Release
0
Est Cost Prop Damage
58000
Est Cost Emergency
0
Est Cost Other
0
Prpty
115580
Accident Psig
538
Mop Psig
575
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
38016
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
Notification From Public
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 incident was noticed immediately and the contol center sent field personnel to make appropriate isolations.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field)
Pwjf Failure Type
Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field)
Other Analysis Ind
Yes
Other Analysis Details
Metallurgical Analysis Was Inconclusive.
Other Factor
Yes
Other Factor Details
Metallurgical Analysis Was Inconclusive.
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
M****** D* S****
Preparer Title
Pipeline Compliance Speciliest
Preparer Email
M******@e****.com
Preparer Telephone
505-908-7241
Authorizer Name
M****** D* S****
Authorizer Title
Pipeline Compliance Speciliest
Authorizer Telephone
505-908-7241
Authorizer Email
M******@e****.com
Narrative
Line 9122 hwy 887 to adkins ruptured at approximately 12:54pm on may 26, 2011. The control center was notified by a rancher that was in the vicinity of the pipeline when the rupture occurred. Field operations was immediately dispatched to the incident. At 13:30 field operations started making valve isolations. County emergency response personnel were already at the incident when enterprise field operations arrived. The area was immediately secured. After securing the area, enterprise products started an incident investigation and the pipe associated with the incident was sent to a metallurgy lab for analysis. Supplemental comments: metallurgy testing and analysis was conducted by stork metallurgy and testing in houston, tx. The results were inconclusive. Supplemental comments 1-30-12 enterprise products has completed an inline inspection (mfl) on the north section of line 9122, from hwy 887 to the end of the pipeline. The north section was also hydrotested to 1.5 times maop. The south section of the pipeline was hydrotested in 2006 as a part of the integrity management program. Mfl and hydrotest data have been reviewed by the railroad commission of texas as a part of their investigation. On completion of the hydrotest the pipeline was returned to service at it's original maop of 612 psig. Supplemental final 7-11-13 corrected the smys of the pipeline to be x46 in part c. Supplement final 9-24-13 corrected the apparant cause in part g to "material failure of pipe or weld" per further discussion with PHMSA. Since the time of the incident, both an ili tool run and hydrotest (pressure test) have been conducted on line 9122. There was one failure during the pressure test and the metallurgical analysis indicated that the hydrotest failure was caused by a "hook crack in the seam".
| Report Received Date | 2011-06-24 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110202 |
| Supplemental Number | 16148 |
| Report Type | Supplemental Final |
| Operator Id | 31618 PHMSA Enforcement |
| Name | Enterprise Products Operating Llc |
| Operator Street Address | 1100 Louisiana Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2011-05-26 12:54:00 |
| Location Latitude | 29.22203 Google Maps OpenStreetMap |
| Location Longitude | -98.09699 Google Maps OpenStreetMap |
| Nrc Rpt Num | 977497 NRC Report How to search |
| Nrc Rpt Datetime | 2011-05-26 14:00:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 14395 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2011-05-26 13:30:00 |
| Restart Datetime | 2011-05-28 13:15:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2011-05-26 12:54:00 |
| On Site Datetime | 2011-05-26 13:30:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 78114 |
| Onshore City Name | Floresville |
| Onshore County Name | Wilson |
| Pipe Fac Name | Hwy 887 To Adkins |
| Segment Name | 9122 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 48 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Seam |
| Pipe Diameter | 20 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 46000 |
| Pipe Specification | Api5l |
| Pipe Seam Type | Longitudinal Erw - Low Frequency |
| Pipe Manufacturer | Youngstown Steel |
| Pipe Coating Type | Coal Tar |
| Installation Year | 1950 |
| Manufactured Year | 1949 |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Longitudinal |
| Rupture Length | 480 |
| Rupture Width | 10 |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 398 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 57580 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 58000 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Prpty | 115580 |
| Accident Psig | 538 |
| Mop Psig | 575 |
| 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 | 38016 |
| 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 | Notification From Public |
| 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 incident was noticed immediately and the contol center sent field personnel to make appropriate isolations. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field) |
| Pwjf Failure Type | Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field) |
| Other Analysis Ind | Yes |
| Other Analysis Details | Metallurgical Analysis Was Inconclusive. |
| Other Factor | Yes |
| Other Factor Details | Metallurgical Analysis Was Inconclusive. |
| 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 | M****** D* S**** |
| Preparer Title | Pipeline Compliance Speciliest |
| Preparer Email | M******@e****.com |
| Preparer Telephone | 505-908-7241 |
| Authorizer Name | M****** D* S**** |
| Authorizer Title | Pipeline Compliance Speciliest |
| Authorizer Telephone | 505-908-7241 |
| Authorizer Email | M******@e****.com |
| Narrative | Line 9122 hwy 887 to adkins ruptured at approximately 12:54pm on may 26, 2011. The control center was notified by a rancher that was in the vicinity of the pipeline when the rupture occurred. Field operations was immediately dispatched to the incident. At 13:30 field operations started making valve isolations. County emergency response personnel were already at the incident when enterprise field operations arrived. The area was immediately secured. After securing the area, enterprise products started an incident investigation and the pipe associated with the incident was sent to a metallurgy lab for analysis. Supplemental comments: metallurgy testing and analysis was conducted by stork metallurgy and testing in houston, tx. The results were inconclusive. Supplemental comments 1-30-12 enterprise products has completed an inline inspection (mfl) on the north section of line 9122, from hwy 887 to the end of the pipeline. The north section was also hydrotested to 1.5 times maop. The south section of the pipeline was hydrotested in 2006 as a part of the integrity management program. Mfl and hydrotest data have been reviewed by the railroad commission of texas as a part of their investigation. On completion of the hydrotest the pipeline was returned to service at it's original maop of 612 psig. Supplemental final 7-11-13 corrected the smys of the pipeline to be x46 in part c. Supplement final 9-24-13 corrected the apparant cause in part g to "material failure of pipe or weld" per further discussion with PHMSA. Since the time of the incident, both an ili tool run and hydrotest (pressure test) have been conducted on line 9122. There was one failure during the pressure test and the metallurgical analysis indicated that the hydrotest failure was caused by a "hook crack in the seam". |
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