Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2015-10-22 — KY
Operator
Louisville Gas & Electric Co
Cause
Corrosion Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$32,160
Incident datetime
2015-10-22 14:45
Report number
Location
KY
Narrative
A failure on a pipe segment in doe run storage field, located downstream of an unattended field compressor, occurred on october 22, 2015. Review of pressure data recorded found the field compressor discharge pressure dropped suddenly at approximately 12:50 pm resulting in the automatic shutdown of the field compressor. At approximately 2:15 pm a storage field mechanic was notified by a local resident of a potential issue in the storage field. Upon investigation the field mechanic found gas escaping from a pipe segment located downstream of the field compressor. The field mechanic isolated the pipeline segment at approximately 3:23 pm stopping the gas release. Notification was made to the indiana utility regulatory commission and PHMSA after environmental cleanup of the site was completed and excavation of the pipe enabled defect measurements providing the basis for an engineering estimate of natural gas volume released. The failed pipe segment was sent to a metallurgical lab for failure analysis. The results of the metallurgical analysis indicate that the failure occurred at an area of wall thinning due to internal corrosion that failed by ductile overload under the imposed operating pressure. Significant wall thinning at the location of the rupture likely corresponded to historic fluid lines. Additional analysis performed on liquid samples and deposits from inside of the pipeline, along with a review of the gas composition data, point toward the internal corrosion being caused by the presence of water, oxygen, carbon dioxide, and hydrogen sulfide. The oxygen is suspected to have been the key driver of the corrosion.
Detailed record list
Report Received Date
2015-11-18 00:00:00
Iyear
2015
Report Number
20150136
Supplemental Number
17239
Report Type
Supplemental Final
Operator Id
11824
Name
Louisville Gas & Electric Co
Operator Street Address
820 West Broadway, Po Box 32030
Operator City Name
Louisville
Operator State Abbreviation
KY
Operator Postal Code
40202
Local Datetime
2015-10-22 12:50:00
Location Latitude
37.99367
Location Longitude
-86.06631
Nrc Rpt Num
1131519
Nrc Rpt Datetime
2015-10-23 14:29:00
Commodity Released Type
Natural Gas
Unintentional Release
8690
Intentional Release
0
Accompanying Liquid
2
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-10-22 15:00:00
Restart Datetime
2015-12-09 12:40:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2015-10-22 14:45:00
On Site Datetime
2015-10-22 14:45:00
On Off Shore
Onshore
Onshore State Abbreviation
In
Onshore Postal Code
47135
Onshore City Name
Laconia
Onshore County Name
Harrison
Designated Location
Survey Station No.
Designated Name
Seg Id 305885
Pipe Fac Name
Doe Run Indiana 8" South
Segment Name
305885
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Belowground Storage, Including Associated Equipment And Piping
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
8
Pipe Wall Thickness
0.188
Pipe Smys
35000
Pipe Specification
Api 5l
Pipe Seam Type
Longitudinal Erw - Unknown Frequency
Pipe Manufacturer
Unknown
Pipe Coating Type
Coal Tar
Installation Year
1984
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Longitudinal
Rupture Length
24
Rupture Width
6
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
96
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
50
Est Cost Unintentional Release
26070
Est Cost Intentional Release
0
Est Cost Prop Damage
32160
Est Cost Emergency
630
Est Cost Other
12000
Est Cost Other Details
Liquid And Soil Clean Up
Prpty
70910
Accident Psig
235
Mop Psig
305
Mop Cfr Section
192.619(A)(2)
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Pipeline Function
Transmission In Storage Field
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
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 pressure on the pipeline in question cannot be controlled from the control room. Furthermore, there was no spike in pressure on the pipeline leading up to the failure.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
Internal Corrosion
Internal External
Internal Corrosion
Int Visual Exam Results
Localized Pitting
Int Corrosive Commodity Ind
Yes
Int Water Acid Ind
Yes
Int Metallurgical Basis Ind
Yes
Int Drop Out Loc Ind
Yes
Corrosion Inhibitors
No
Corrosion Lining
No
Cleaning Dewatering
No
Corrosion Coupons
No
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
P**** C****
Preparer Title
Manager Gas Regulatory Compliance
Preparer Email
P**********@l*****.com
Preparer Telephone
502-364-8715
Authorizer Name
G*** C******
Authorizer Title
Associate General Counsel
Authorizer Telephone
502-627-2756
Authorizer Email
G***********@l*****.com
Narrative
A failure on a pipe segment in doe run storage field, located downstream of an unattended field compressor, occurred on october 22, 2015. Review of pressure data recorded found the field compressor discharge pressure dropped suddenly at approximately 12:50 pm resulting in the automatic shutdown of the field compressor. At approximately 2:15 pm a storage field mechanic was notified by a local resident of a potential issue in the storage field. Upon investigation the field mechanic found gas escaping from a pipe segment located downstream of the field compressor. The field mechanic isolated the pipeline segment at approximately 3:23 pm stopping the gas release. Notification was made to the indiana utility regulatory commission and PHMSA after environmental cleanup of the site was completed and excavation of the pipe enabled defect measurements providing the basis for an engineering estimate of natural gas volume released. The failed pipe segment was sent to a metallurgical lab for failure analysis. The results of the metallurgical analysis indicate that the failure occurred at an area of wall thinning due to internal corrosion that failed by ductile overload under the imposed operating pressure. Significant wall thinning at the location of the rupture likely corresponded to historic fluid lines. Additional analysis performed on liquid samples and deposits from inside of the pipeline, along with a review of the gas composition data, point toward the internal corrosion being caused by the presence of water, oxygen, carbon dioxide, and hydrogen sulfide. The oxygen is suspected to have been the key driver of the corrosion.
| Report Received Date | 2015-11-18 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150136 |
| Supplemental Number | 17239 |
| Report Type | Supplemental Final |
| Operator Id | 11824 PHMSA Enforcement |
| Name | Louisville Gas & Electric Co |
| Operator Street Address | 820 West Broadway, Po Box 32030 |
| Operator City Name | Louisville |
| Operator State Abbreviation | KY |
| Operator Postal Code | 40202 |
| Local Datetime | 2015-10-22 12:50:00 |
| Location Latitude | 37.99367 Google Maps OpenStreetMap |
| Location Longitude | -86.06631 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1131519 NRC Report How to search |
| Nrc Rpt Datetime | 2015-10-23 14:29:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 8690 |
| Intentional Release | 0 |
| Accompanying Liquid | 2 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-10-22 15:00:00 |
| Restart Datetime | 2015-12-09 12:40:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2015-10-22 14:45:00 |
| On Site Datetime | 2015-10-22 14:45:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | In |
| Onshore Postal Code | 47135 |
| Onshore City Name | Laconia |
| Onshore County Name | Harrison |
| Designated Location | Survey Station No. |
| Designated Name | Seg Id 305885 |
| Pipe Fac Name | Doe Run Indiana 8" South |
| Segment Name | 305885 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Belowground Storage, Including Associated Equipment And Piping |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 8 |
| Pipe Wall Thickness | 0.188 |
| Pipe Smys | 35000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Longitudinal Erw - Unknown Frequency |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Coal Tar |
| Installation Year | 1984 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Longitudinal |
| Rupture Length | 24 |
| Rupture Width | 6 |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 96 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 50 |
| Est Cost Unintentional Release | 26070 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 32160 |
| Est Cost Emergency | 630 |
| Est Cost Other | 12000 |
| Est Cost Other Details | Liquid And Soil Clean Up |
| Prpty | 70910 |
| Accident Psig | 235 |
| Mop Psig | 305 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Pipeline Function | Transmission In Storage Field |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| 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 pressure on the pipeline in question cannot be controlled from the control room. Furthermore, there was no spike in pressure on the pipeline leading up to the failure. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | Internal Corrosion |
| Internal External | Internal Corrosion |
| Int Visual Exam Results | Localized Pitting |
| Int Corrosive Commodity Ind | Yes |
| Int Water Acid Ind | Yes |
| Int Metallurgical Basis Ind | Yes |
| Int Drop Out Loc Ind | Yes |
| Corrosion Inhibitors | No |
| Corrosion Lining | No |
| Cleaning Dewatering | No |
| Corrosion Coupons | No |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | P**** C**** |
| Preparer Title | Manager Gas Regulatory Compliance |
| Preparer Email | P**********@l*****.com |
| Preparer Telephone | 502-364-8715 |
| Authorizer Name | G*** C****** |
| Authorizer Title | Associate General Counsel |
| Authorizer Telephone | 502-627-2756 |
| Authorizer Email | G***********@l*****.com |
| Narrative | A failure on a pipe segment in doe run storage field, located downstream of an unattended field compressor, occurred on october 22, 2015. Review of pressure data recorded found the field compressor discharge pressure dropped suddenly at approximately 12:50 pm resulting in the automatic shutdown of the field compressor. At approximately 2:15 pm a storage field mechanic was notified by a local resident of a potential issue in the storage field. Upon investigation the field mechanic found gas escaping from a pipe segment located downstream of the field compressor. The field mechanic isolated the pipeline segment at approximately 3:23 pm stopping the gas release. Notification was made to the indiana utility regulatory commission and PHMSA after environmental cleanup of the site was completed and excavation of the pipe enabled defect measurements providing the basis for an engineering estimate of natural gas volume released. The failed pipe segment was sent to a metallurgical lab for failure analysis. The results of the metallurgical analysis indicate that the failure occurred at an area of wall thinning due to internal corrosion that failed by ductile overload under the imposed operating pressure. Significant wall thinning at the location of the rupture likely corresponded to historic fluid lines. Additional analysis performed on liquid samples and deposits from inside of the pipeline, along with a review of the gas composition data, point toward the internal corrosion being caused by the presence of water, oxygen, carbon dioxide, and hydrogen sulfide. The oxygen is suspected to have been the key driver of the corrosion. |
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