Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2010-12-24 — OK
Operator
Oneok Ngl Pipeline Lp
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)
$115,000
Incident datetime
2010-12-24 14:10
Report number
Location
OK
Narrative
Passerby noticed vapors coming from the ground and notified trenton fire department. Trenton fire department contacted oneok ngl pipeline, pipeline control center. Pipeline was shutdown and section was isolated. Segment was isolated by stopple, defective weld was removed and replaced. Metallurgical analysis identified the cause of the leak to be; burn through near the bottom weld button during original construction. As a result of the burn through, there was no root bead, and the geometry of the consequent hot pass and cap allowed gradual erosion of the weld, which resulted in the leak.
Detailed record list
Report Received Date
2010-12-24 00:00:00
Iyear
2010
Report Number
20100311
Supplemental Number
18024
Report Type
Supplemental Final
Operator Id
32109
Name
Oneok Ngl Pipeline Lp
Operator Street Address
100 West Fifth Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2010-12-24 14:10:00
Location Latitude
33.45494
Location Longitude
-96.35925
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls
7
Intentional Release Bbls
35
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Emergency Responder
Incident Identified Datetime
2010-12-24 14:10:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2010-12-24 14:26:00
Restart Datetime
2010-12-27 17:50:00
On Site Datetime
2010-12-24 15:03:00
Nrc Rpt Datetime
2010-12-24 18:07:00
Nrc Rpt Num
963065
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Oneok Ngl Pipeline-- Sterling 1 Pipeline
Segment Name
Sterling #1 (Index 10177)
Onshore State Abbreviation
Tx
Onshore Postal Code
75490
Onshore City Name
Trenton
Onshore County Name
Fannin
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
44
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Weld, Including Heat-Affected Zone
Pipe Diameter
8.625
Pipe Wall Thickness
0.188
Pipe Smys
46000
Pipe Specification
Api 5l
Pipe Seam Type
Erw - High Frequency
Pipe Manufacturer
Republic
Pipe Coating Type
Cold Applied Tape
Weld Subtype
Pipe Girth Weld
Installation Year
1981
Manufactured Year
1981
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
Yes
Commodity Reached Hca
Yes
Usa Drinking Ind
Yes
Usa Drinking Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
355
Est Cost Prop Damage
115000
Est Cost Emergency
10000
Est Cost Environmental
0
Est Cost Other
0
Prpty
125355
Accident Psig
400
Mop Psig
1356
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
84480
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
Operator determined that no actions taken by pipeline controller contributed to leak
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Design-, Construction-, Installation-, Or Fabrication-Related
Field Exam Ind
Yes
Metallurgical Ind
Yes
Failure Type
Design-, Construction-, Installation-, Or Fabrication-Related
Other Factor
Yes
Other Factor Details
Pin Hole Erosion Of Weld
Additional Lack Fusion Ind
Yes
Collected Data Ind
Yes
Other Recent Year
2010
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
Yes, But The Point Of The Accident Was Not Identified As A Dig Site
Direct Asmnt Pnt Not Idntf Yr
2010
Non Destructive Exam Ind
No
Preparer Name
N*** J****
Preparer Email
N*********@o****.com
Preparer Telephone
580-395-6304
Preparer Fax
580-395-2933
Prepared Date
2013-05-13 00:00:00
Authorizer Name
N*** J****
Authorizer Telephone
580-395-6304
Authorizer Email
N*********@o****.com
Narrative
Passerby noticed vapors coming from the ground and notified trenton fire department. Trenton fire department contacted oneok ngl pipeline, pipeline control center. Pipeline was shutdown and section was isolated. Segment was isolated by stopple, defective weld was removed and replaced. Metallurgical analysis identified the cause of the leak to be; burn through near the bottom weld button during original construction. As a result of the burn through, there was no root bead, and the geometry of the consequent hot pass and cap allowed gradual erosion of the weld, which resulted in the leak.
| Report Received Date | 2010-12-24 00:00:00 |
|---|---|
| Iyear | 2010 |
| Report Number | 20100311 |
| Supplemental Number | 18024 |
| Report Type | Supplemental Final |
| Operator Id | 32109 PHMSA Enforcement |
| Name | Oneok Ngl Pipeline Lp |
| Operator Street Address | 100 West Fifth Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Local Datetime | 2010-12-24 14:10:00 |
| Location Latitude | 33.45494 Google Maps OpenStreetMap |
| Location Longitude | -96.35925 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid) |
| Unintentional Release Bbls | 7 |
| Intentional Release Bbls | 35 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Emergency Responder |
| Incident Identified Datetime | 2010-12-24 14:10:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2010-12-24 14:26:00 |
| Restart Datetime | 2010-12-27 17:50:00 |
| On Site Datetime | 2010-12-24 15:03:00 |
| Nrc Rpt Datetime | 2010-12-24 18:07:00 |
| Nrc Rpt Num | 963065 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 | Oneok Ngl Pipeline-- Sterling 1 Pipeline |
| Segment Name | Sterling #1 (Index 10177) |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 75490 |
| Onshore City Name | Trenton |
| Onshore County Name | Fannin |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 44 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Weld, Including Heat-Affected Zone |
| Pipe Diameter | 8.625 |
| Pipe Wall Thickness | 0.188 |
| Pipe Smys | 46000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Erw - High Frequency |
| Pipe Manufacturer | Republic |
| Pipe Coating Type | Cold Applied Tape |
| Weld Subtype | Pipe Girth Weld |
| Installation Year | 1981 |
| Manufactured Year | 1981 |
| 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 | Yes |
| Commodity Reached Hca | Yes |
| Usa Drinking Ind | Yes |
| Usa Drinking Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 355 |
| Est Cost Prop Damage | 115000 |
| Est Cost Emergency | 10000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 125355 |
| Accident Psig | 400 |
| Mop Psig | 1356 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 84480 |
| 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 | Operator determined that no actions taken by pipeline controller contributed to leak |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Design-, Construction-, Installation-, Or Fabrication-Related |
| Field Exam Ind | Yes |
| Metallurgical Ind | Yes |
| Failure Type | Design-, Construction-, Installation-, Or Fabrication-Related |
| Other Factor | Yes |
| Other Factor Details | Pin Hole Erosion Of Weld |
| Additional Lack Fusion Ind | Yes |
| Collected Data Ind | Yes |
| Other Recent Year | 2010 |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | Yes, But The Point Of The Accident Was Not Identified As A Dig Site |
| Direct Asmnt Pnt Not Idntf Yr | 2010 |
| Non Destructive Exam Ind | No |
| Preparer Name | N*** J**** |
| Preparer Email | N*********@o****.com |
| Preparer Telephone | 580-395-6304 |
| Preparer Fax | 580-395-2933 |
| Prepared Date | 2013-05-13 00:00:00 |
| Authorizer Name | N*** J**** |
| Authorizer Telephone | 580-395-6304 |
| Authorizer Email | N*********@o****.com |
| Narrative | Passerby noticed vapors coming from the ground and notified trenton fire department. Trenton fire department contacted oneok ngl pipeline, pipeline control center. Pipeline was shutdown and section was isolated. Segment was isolated by stopple, defective weld was removed and replaced. Metallurgical analysis identified the cause of the leak to be; burn through near the bottom weld button during original construction. As a result of the burn through, there was no root bead, and the geometry of the consequent hot pass and cap allowed gradual erosion of the weld, which resulted in the leak. |
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