Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2023-10-18 — TX
Operator
Energy Transfer Company
Cause
Corrosion Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$998,000
Incident datetime
2023-10-18 00:00 UTC
Report number
Location
TX
Narrative
On september 19, 2023 at approximately 0800, the control center received a call from a third party about a potential leak on the 88885654 wt apollo 6008442-wa 12in (howe 12in), located 12 miles south southwest of pyote, texas. The controller notified operations and at approximately 0900 the pipeline was blocked and isolated by operations. Once onsite, operations confirmed the pipeline had ruptured. Approximately 5.5 mmcf of natural gas was released. At 0730 the waha gas plant had an outage thus causing the pipeline to pressure up. The cause of the rupture is still under investigation. The ruptured portion of the pipe was cut out and sent to the lab for analysis. A supplemental report will be submitted once the investigation is complete, and the results are in from the lab. October 23, 2023 at approximately 0300, the pipeline was put back into service. The conclusion of the lab report revealed that the corrosion was primarily caused by the presence of hydrogen sulfide (h2s). To prevent this from occurring in the future, coupons were installed on the pipeline, this pipeline will be put on a weekly pigging schedule and inhibitors will continue to be injected into the pipeline. An ili run will be budgeted for 2025.
Detailed record list
Report Received Date
2023-10-18 00:00:00
Iyear
2023
Report Number
20230096
Supplemental Number
38766
Report Type
Supplemental Final
Operator Id
32099
Name
Energy Transfer Company
Operator Street Address
1300 Main Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
31.389161
Location Longitude
-102.999949
Nrc Rpt Num
1379671
Additional Nrc Report Numbers
1379829
Commodity Released Type
Natural Gas
Unintentional Release
5500
Intentional Release
0
Accompanying Liquid
70
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Status When Identified
Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
No
Ignite Ind
No
Upstream Action Taken
Valve Closure
Downstream Action Taken
Valve Closure
Num Pub Evacuated
0
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
79777
Onshore City Name
Pyote
Onshore County Name
Ward
Designated Location
Not Applicable
Pipe Fac Name
88885654 Wt Apollo 6008442-Wa 12in
Segment Name
Howe 12in
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
60
Other Underground Facilities
Yes
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
12
Puddle Weld Ind
No
Pipe Wall Thickness
0.281
Pipe Smys
35000
Pipe Specification
Unknown
Pipe Seam Type
Longitudinal Erw - Unknown Frequency
Pipe Manufacturer
Unknown
Pipe Coating Type
Coal Tar
Coating Applied Ind
Unknown
Installation Year
1974
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Longitudinal
Rupture Length
12
Rupture Width
180
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
257
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
14740
Est Cost Intentional Release
0
Est Cost Prop Damage
998000
Est Cost Emergency
2000
Est Cost Other
0
Gas Cost In Mcf
2.68
Prpty
1014740
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Wildlife Impact Ind
No
Accident Psig
1048
Gas Flow In Pipe In Mcf
22.5
Mop Psig
1100
Mop Cfr Section
192.619(A)(1)
Maop Established Date
1974-01-01 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
42179
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
Needing Upgrade Launcher And Receivers
Operation Complications Ind
Yes
Other Complications Ind
Yes
Inspect Comp Details
Needing Upgrade Launcher And Receivers
Pipeline Function
Type C Gathering
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Controller
Operator Type
Operator Employee
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
A review of the accident determined that there were no control room actions that contributed to the event
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
General Corrosion
Int Microbiological Ind
Yes
Int Metallurgical Basis Ind
Yes
Int Other Loc Ind
Yes
Corrosion Location Details
Top Quarter Of Pipe
Corrosion Inhibitors
Yes
Corrosion Lining
No
Cleaning Dewatering
Yes
Corrosion Coupons
No
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
C********** P******
Preparer Title
Sr. Specialist Dot Compliance
Preparer Email
C******************@e*************.com
Preparer Telephone
325-933-3577
Authorizer Name
S**** S*****
Authorizer Title
Director - Dot Compliance
Authorizer Telephone
405-557-5271
Authorizer Email
S***********@e*************.com
Narrative
On september 19, 2023 at approximately 0800, the control center received a call from a third party about a potential leak on the 88885654 wt apollo 6008442-wa 12in (howe 12in), located 12 miles south southwest of pyote, texas. The controller notified operations and at approximately 0900 the pipeline was blocked and isolated by operations. Once onsite, operations confirmed the pipeline had ruptured. Approximately 5.5 mmcf of natural gas was released. At 0730 the waha gas plant had an outage thus causing the pipeline to pressure up. The cause of the rupture is still under investigation. The ruptured portion of the pipe was cut out and sent to the lab for analysis. A supplemental report will be submitted once the investigation is complete, and the results are in from the lab. October 23, 2023 at approximately 0300, the pipeline was put back into service. The conclusion of the lab report revealed that the corrosion was primarily caused by the presence of hydrogen sulfide (h2s). To prevent this from occurring in the future, coupons were installed on the pipeline, this pipeline will be put on a weekly pigging schedule and inhibitors will continue to be injected into the pipeline. An ili run will be budgeted for 2025.
| Report Received Date | 2023-10-18 00:00:00 |
|---|---|
| Iyear | 2023 |
| Report Number | 20230096 |
| Supplemental Number | 38766 |
| Report Type | Supplemental Final |
| Operator Id | 32099 PHMSA Enforcement |
| Name | Energy Transfer Company |
| Operator Street Address | 1300 Main Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 31.389161 Google Maps OpenStreetMap |
| Location Longitude | -102.999949 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1379671 NRC Report How to search |
| Additional Nrc Report Numbers | 1379829 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 5500 |
| Intentional Release | 0 |
| Accompanying Liquid | 70 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Status When Identified | Normal Operation, Includes Pauses During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Communication State Fed Ind | No |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Downstream Action Taken | Valve Closure |
| Num Pub Evacuated | 0 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79777 |
| Onshore City Name | Pyote |
| Onshore County Name | Ward |
| Designated Location | Not Applicable |
| Pipe Fac Name | 88885654 Wt Apollo 6008442-Wa 12in |
| Segment Name | Howe 12in |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 60 |
| Other Underground Facilities | Yes |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 12 |
| Puddle Weld Ind | No |
| Pipe Wall Thickness | 0.281 |
| Pipe Smys | 35000 |
| Pipe Specification | Unknown |
| Pipe Seam Type | Longitudinal Erw - Unknown Frequency |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Coal Tar |
| Coating Applied Ind | Unknown |
| Installation Year | 1974 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Longitudinal |
| Rupture Length | 12 |
| Rupture Width | 180 |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 257 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Did Occur In Mca Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 14740 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 998000 |
| Est Cost Emergency | 2000 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 2.68 |
| Prpty | 1014740 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Wildlife Impact Ind | No |
| Accident Psig | 1048 |
| Gas Flow In Pipe In Mcf | 22.5 |
| Mop Psig | 1100 |
| Mop Cfr Section | 192.619(A)(1) View CFR 49 §192 |
| Maop Established Date | 1974-01-01 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 42179 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | Needing Upgrade Launcher And Receivers |
| Operation Complications Ind | Yes |
| Other Complications Ind | Yes |
| Inspect Comp Details | Needing Upgrade Launcher And Receivers |
| Pipeline Function | Type C Gathering |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Controller |
| Operator Type | Operator Employee |
| 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 | A review of the accident determined that there were no control room actions that contributed to the event |
| 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 | General Corrosion |
| Int Microbiological Ind | Yes |
| Int Metallurgical Basis Ind | Yes |
| Int Other Loc Ind | Yes |
| Corrosion Location Details | Top Quarter Of Pipe |
| Corrosion Inhibitors | Yes |
| Corrosion Lining | No |
| Cleaning Dewatering | Yes |
| Corrosion Coupons | No |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | C********** P****** |
| Preparer Title | Sr. Specialist Dot Compliance |
| Preparer Email | C******************@e*************.com |
| Preparer Telephone | 325-933-3577 |
| Authorizer Name | S**** S***** |
| Authorizer Title | Director - Dot Compliance |
| Authorizer Telephone | 405-557-5271 |
| Authorizer Email | S***********@e*************.com |
| Narrative | On september 19, 2023 at approximately 0800, the control center received a call from a third party about a potential leak on the 88885654 wt apollo 6008442-wa 12in (howe 12in), located 12 miles south southwest of pyote, texas. The controller notified operations and at approximately 0900 the pipeline was blocked and isolated by operations. Once onsite, operations confirmed the pipeline had ruptured. Approximately 5.5 mmcf of natural gas was released. At 0730 the waha gas plant had an outage thus causing the pipeline to pressure up. The cause of the rupture is still under investigation. The ruptured portion of the pipe was cut out and sent to the lab for analysis. A supplemental report will be submitted once the investigation is complete, and the results are in from the lab. October 23, 2023 at approximately 0300, the pipeline was put back into service. The conclusion of the lab report revealed that the corrosion was primarily caused by the presence of hydrogen sulfide (h2s). To prevent this from occurring in the future, coupons were installed on the pipeline, this pipeline will be put on a weekly pigging schedule and inhibitors will continue to be injected into the pipeline. An ili run will be budgeted for 2025. |
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