Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2013-07-18 — TX
Operator
Chevron Petrochemical Pipeline Llc
Cause
Material Failure Of Pipe Or Weld
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$322,200
Incident datetime
2013-07-18 16:15
Report number
Location
TX
Narrative
The analytical report confirms that the root cause of the leak was a manufacturing defect of x52 erw pipe. The size of the anomaly would not be considered a defect per ap 5lx standards in 1953, or the current API 5lx edition. Therefore, there are no previous or current nde methods including ili tools that would be able to detect this type of anomaly. The root cause in the analytical report reads as follows: 1. The erw seam leak was caused by a cold weld, a typical manufacture defect in low-frequency erw seams. This conclusion was supported by the following characteris including the smooth fracture surfaces at the leak, the through-wall oxide layer, and no evidence of bonding. 2. The most likely cause of the cold weld was insufficient heat and/or forming tool pressure during manufacture. 3. The pipe dimension and mechanical properties met the requirement specified in API standard 5lx fourth edition (1953) for grade x52 line pipe. The base metal microstructure was ferrite plus pearlite, as is typical of carbon manganese steel pipe.
Detailed record list
Report Received Date
2013-09-09 00:00:00
Iyear
2013
Report Number
20130305
Supplemental Number
19139
Report Type
Supplemental Final
Operator Id
31554
Name
Chevron Petrochemical Pipeline Llc
Operator Street Address
9 Greenway Plaza
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77046
Local Datetime
2013-07-18 16:15:00
Location Latitude
30.060572
Location Longitude
-93.5581
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Ethylene
Unintentional Release Bbls
0
Intentional Release Bbls
17825
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Contractor Working For The Operator
Incident Identified Datetime
2013-07-18 16:15:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2013-08-01 14:00:00
Restart Datetime
2014-02-20 05:00:00
On Site Datetime
2013-07-18 16:15:00
Nrc Rpt Datetime
2013-08-28 16:28:00
Nrc Rpt Num
1058513
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Evangeline Ethylene Pipeline System
Segment Name
Sabine River East Mlv To Gum Cove Mlv
Onshore State Abbreviation
La
Onshore Postal Code
70663
Onshore City Name
Sulphur
Onshore County Name
Calcasieu
Designated Location
Milepost/valve Station
Designated Name
26.7
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
42
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Seam
Pipe Diameter
16
Pipe Wall Thickness
0.312
Pipe Smys
52000
Pipe Specification
Api 5lx
Pipe Seam Type
Erw - Low Frequency
Pipe Manufacturer
Youngstown Steel And Tube Company, Ny
Pipe Coating Type
Coal Tar
Installation Year
1954
Manufactured Year
1953
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
995728
Est Cost Prop Damage
322200
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
1317928
Accident Psig
1100
Mop Psig
1175
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
Yes
Exceed Restriction Ind
No
Phmsa Restriction Ind
Not Mandated
Length Segment Isolated
71273
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
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
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 pinhole leak volume was so small that it could not be detected by scada
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)
Metallurgical Ind
Yes
Failure Type
Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field)
Other Factor
Yes
Other Factor Details
Erw Longitudinal Seam Cold Weld
Additional Lack Fusion Ind
Yes
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Geometry Deformation Ind
Yes
Axial Recent Year
2012
Geometry Recent Year
2012
Has Hydrtst Conduc Before Ind
Yes
Hydrtst Most Rcnt Year
2001
Hydrtst Most Rcnt Pressure
1681
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
H**** L* L****
Preparer Title
Dot Pipeline Safety Specialist
Preparer Email
H*********@c******.com
Preparer Telephone
3376548915
Preparer Fax
3375723720
Prepared Date
2014-03-18 00:00:00
Authorizer Name
H**** L* L****
Authorizer Telephone
3376548915
Authorizer Title
Dot Pipeline Safety Specialist
Authorizer Email
H*********@c******.com
Narrative
The analytical report confirms that the root cause of the leak was a manufacturing defect of x52 erw pipe. The size of the anomaly would not be considered a defect per ap 5lx standards in 1953, or the current API 5lx edition. Therefore, there are no previous or current nde methods including ili tools that would be able to detect this type of anomaly. The root cause in the analytical report reads as follows: 1. The erw seam leak was caused by a cold weld, a typical manufacture defect in low-frequency erw seams. This conclusion was supported by the following characteris including the smooth fracture surfaces at the leak, the through-wall oxide layer, and no evidence of bonding. 2. The most likely cause of the cold weld was insufficient heat and/or forming tool pressure during manufacture. 3. The pipe dimension and mechanical properties met the requirement specified in API standard 5lx fourth edition (1953) for grade x52 line pipe. The base metal microstructure was ferrite plus pearlite, as is typical of carbon manganese steel pipe.
| Report Received Date | 2013-09-09 00:00:00 |
|---|---|
| Iyear | 2013 |
| Report Number | 20130305 |
| Supplemental Number | 19139 |
| Report Type | Supplemental Final |
| Operator Id | 31554 PHMSA Enforcement |
| Name | Chevron Petrochemical Pipeline Llc |
| Operator Street Address | 9 Greenway Plaza |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77046 |
| Local Datetime | 2013-07-18 16:15:00 |
| Location Latitude | 30.060572 Google Maps OpenStreetMap |
| Location Longitude | -93.5581 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Other Hvl |
| Commodity Details | Ethylene |
| Unintentional Release Bbls | 0 |
| Intentional Release Bbls | 17825 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Contractor Working For The Operator |
| Incident Identified Datetime | 2013-07-18 16:15:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2013-08-01 14:00:00 |
| Restart Datetime | 2014-02-20 05:00:00 |
| On Site Datetime | 2013-07-18 16:15:00 |
| Nrc Rpt Datetime | 2013-08-28 16:28:00 |
| Nrc Rpt Num | 1058513 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Evangeline Ethylene Pipeline System |
| Segment Name | Sabine River East Mlv To Gum Cove Mlv |
| Onshore State Abbreviation | La |
| Onshore Postal Code | 70663 |
| Onshore City Name | Sulphur |
| Onshore County Name | Calcasieu |
| Designated Location | Milepost/valve Station |
| Designated Name | 26.7 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 42 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Seam |
| Pipe Diameter | 16 |
| Pipe Wall Thickness | 0.312 |
| Pipe Smys | 52000 |
| Pipe Specification | Api 5lx |
| Pipe Seam Type | Erw - Low Frequency |
| Pipe Manufacturer | Youngstown Steel And Tube Company, Ny |
| Pipe Coating Type | Coal Tar |
| Installation Year | 1954 |
| Manufactured Year | 1953 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 995728 |
| Est Cost Prop Damage | 322200 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 1317928 |
| Accident Psig | 1100 |
| Mop Psig | 1175 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | Yes |
| Exceed Restriction Ind | No |
| Phmsa Restriction Ind | Not Mandated |
| Length Segment Isolated | 71273 |
| 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 | 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 | 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 pinhole leak volume was so small that it could not be detected by scada |
| 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) |
| Metallurgical Ind | Yes |
| Failure Type | Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field) |
| Other Factor | Yes |
| Other Factor Details | Erw Longitudinal Seam Cold Weld |
| Additional Lack Fusion Ind | Yes |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Geometry Deformation Ind | Yes |
| Axial Recent Year | 2012 |
| Geometry Recent Year | 2012 |
| Has Hydrtst Conduc Before Ind | Yes |
| Hydrtst Most Rcnt Year | 2001 |
| Hydrtst Most Rcnt Pressure | 1681 |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | H**** L* L**** |
| Preparer Title | Dot Pipeline Safety Specialist |
| Preparer Email | H*********@c******.com |
| Preparer Telephone | 3376548915 |
| Preparer Fax | 3375723720 |
| Prepared Date | 2014-03-18 00:00:00 |
| Authorizer Name | H**** L* L**** |
| Authorizer Telephone | 3376548915 |
| Authorizer Title | Dot Pipeline Safety Specialist |
| Authorizer Email | H*********@c******.com |
| Narrative | The analytical report confirms that the root cause of the leak was a manufacturing defect of x52 erw pipe. The size of the anomaly would not be considered a defect per ap 5lx standards in 1953, or the current API 5lx edition. Therefore, there are no previous or current nde methods including ili tools that would be able to detect this type of anomaly. The root cause in the analytical report reads as follows: 1. The erw seam leak was caused by a cold weld, a typical manufacture defect in low-frequency erw seams. This conclusion was supported by the following characteris including the smooth fracture surfaces at the leak, the through-wall oxide layer, and no evidence of bonding. 2. The most likely cause of the cold weld was insufficient heat and/or forming tool pressure during manufacture. 3. The pipe dimension and mechanical properties met the requirement specified in API standard 5lx fourth edition (1953) for grade x52 line pipe. The base metal microstructure was ferrite plus pearlite, as is typical of carbon manganese steel pipe. |
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