Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2024-07-02 — OK
Operator
Oneok Ngl Pipeline, Llc
Cause
Equipment Failure
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
2 injuries
Property damage (nominal)
$190,000
Incident datetime
2024-07-02 00:00 UTC
Report number
Location
OK
Narrative
On june 3, 2024 at approximately 11:50 a.M., product ignited during a pigging operation at west texas ngl pipeline's orla injection site. A 3rd party is performing a cause failure analysis and will subject the relevant equipment to lab analysis. The results will be shared with PHMSA and oneok will supplement this report as appropriate. Supplemental 2/17/25: the third-party causal report identified that the associated valves leaked due to mechanical damage to the valve seals. The damage was a combination of wear from the valves opening and closing, and particulate materials scratching and embedding in the seals. Failure to follow the hot work standard by allowing a non-intrinsically safe device into the work area with a potentially hazardous atmosphere has also been identified as a contributing factor to the event. The release and subsequent ignition resulted in two contractor injuries. A line stop on the associated pipeline was utilized to make the required repairs.
Detailed record list
Report Received Date
2024-07-02 00:00:00
Iyear
2024
Report Number
20240159
Supplemental Number
40522
Report Type
Supplemental Final
Operator Id
32109
Name
Oneok Ngl Pipeline, Llc
Operator Street Address
100 West Fifth Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
31.87049
Location Longitude
-103.85733
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
0.7
Intentional Release Bbls
43.5
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
0
Num Contr Injuries
2
Num Er Injuries
0
Num Worker Injuries
0
Num Gp Injuries
0
Injure
2
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
No
Nrc Rpt Num
1400727
Additional Nrc Report Numbers
1400897
Ignite Ind
Yes
How Extinguished
Other
How Extinguished Other Detail
Injection Plant Personnel.
Consumed By Fire In Barrels
0.1
Explode Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Type Ind
Automatic
Downstream Action Taken
Operational Control
Downstream Oprtnl Cntrl Detail
Maintained Operational Control By Pulling Down Pressure Utilizing Downstream Pump.
Num Pub Evacuated
0
Pipe Fac Name
Orla Injection
Segment Name
1210
Onshore State Abbreviation
Tx
Onshore Postal Code
79770
Onshore City Name
Not Within A Municipality
Onshore County Name
Reeves
Designated Location
Milepost
Designated Name
0.02
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Scraper/pig Trap
Installation Year
2018
Manufactured Year
2017
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Ignition
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 Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
230
Est Cost Prop Damage
190000
Est Cost Emergency
96000
Est Cost Environmental
0
Est Cost Other
160000
Est Cost Other Details
Third Party Piping Transport, Testing, Failure Analysis, And Reporting
Prpty
446230
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
0
Mop Psig
1480
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
2018-08-27 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
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
There were no controller actions involved in the accident.
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
No
Num Employees Tested
1
Num Employees Failed
0
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Block Valve Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Mechanical Damage To The Valve Seals
Io Follow Procedure Ind
Yes
Preparer Name
M***** C********
Preparer Title
Regulatory Compliance Specialist Sr
Preparer Email
M***************@o****.com
Preparer Telephone
2542928911
Prepared Date
2025-02-19 00:00:00
Local Contact Name
M***** C********
Local Contact Email
M***************@o****.com
Local Contact Telephone
2542928911
Authorizer Name
M***** C********
Authorizer Telephone
2542928911
Authorizer Title
Regulatory Compliance Specialist Sr
Authorizer Email
M***************@o****.com
Narrative
On june 3, 2024 at approximately 11:50 a.M., product ignited during a pigging operation at west texas ngl pipeline's orla injection site. A 3rd party is performing a cause failure analysis and will subject the relevant equipment to lab analysis. The results will be shared with PHMSA and oneok will supplement this report as appropriate. Supplemental 2/17/25: the third-party causal report identified that the associated valves leaked due to mechanical damage to the valve seals. The damage was a combination of wear from the valves opening and closing, and particulate materials scratching and embedding in the seals. Failure to follow the hot work standard by allowing a non-intrinsically safe device into the work area with a potentially hazardous atmosphere has also been identified as a contributing factor to the event. The release and subsequent ignition resulted in two contractor injuries. A line stop on the associated pipeline was utilized to make the required repairs.
| Report Received Date | 2024-07-02 00:00:00 |
|---|---|
| Iyear | 2024 |
| Report Number | 20240159 |
| Supplemental Number | 40522 |
| Report Type | Supplemental Final |
| Operator Id | 32109 PHMSA Enforcement |
| Name | Oneok Ngl Pipeline, Llc |
| Operator Street Address | 100 West Fifth Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 31.87049 Google Maps OpenStreetMap |
| Location Longitude | -103.85733 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 | 0.7 |
| Intentional Release Bbls | 43.5 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | Yes |
| Num Emp Injuries | 0 |
| Num Contr Injuries | 2 |
| Num Er Injuries | 0 |
| Num Worker Injuries | 0 |
| Num Gp Injuries | 0 |
| Injure | 2 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Communication State Fed Ind | No |
| Nrc Rpt Num | 1400727 NRC Report How to search |
| Additional Nrc Report Numbers | 1400897 |
| Ignite Ind | Yes |
| How Extinguished | Other |
| How Extinguished Other Detail | Injection Plant Personnel. |
| Consumed By Fire In Barrels | 0.1 |
| Explode Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Type Ind | Automatic |
| Downstream Action Taken | Operational Control |
| Downstream Oprtnl Cntrl Detail | Maintained Operational Control By Pulling Down Pressure Utilizing Downstream Pump. |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Orla Injection |
| Segment Name | 1210 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79770 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Reeves |
| Designated Location | Milepost |
| Designated Name | 0.02 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Scraper/pig Trap |
| Installation Year | 2018 |
| Manufactured Year | 2017 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Ignition |
| 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 Ecological Ind | Yes |
| Usa Ecological Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 230 |
| Est Cost Prop Damage | 190000 |
| Est Cost Emergency | 96000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 160000 |
| Est Cost Other Details | Third Party Piping Transport, Testing, Failure Analysis, And Reporting |
| Prpty | 446230 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 0 |
| Mop Psig | 1480 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 2018-08-27 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| 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 | There were no controller actions involved in the accident. |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | No |
| Num Employees Tested | 1 |
| Num Employees Failed | 0 |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Block Valve Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Mechanical Damage To The Valve Seals |
| Io Follow Procedure Ind | Yes |
| Preparer Name | M***** C******** |
| Preparer Title | Regulatory Compliance Specialist Sr |
| Preparer Email | M***************@o****.com |
| Preparer Telephone | 2542928911 |
| Prepared Date | 2025-02-19 00:00:00 |
| Local Contact Name | M***** C******** |
| Local Contact Email | M***************@o****.com |
| Local Contact Telephone | 2542928911 |
| Authorizer Name | M***** C******** |
| Authorizer Telephone | 2542928911 |
| Authorizer Title | Regulatory Compliance Specialist Sr |
| Authorizer Email | M***************@o****.com |
| Narrative | On june 3, 2024 at approximately 11:50 a.M., product ignited during a pigging operation at west texas ngl pipeline's orla injection site. A 3rd party is performing a cause failure analysis and will subject the relevant equipment to lab analysis. The results will be shared with PHMSA and oneok will supplement this report as appropriate. Supplemental 2/17/25: the third-party causal report identified that the associated valves leaked due to mechanical damage to the valve seals. The damage was a combination of wear from the valves opening and closing, and particulate materials scratching and embedding in the seals. Failure to follow the hot work standard by allowing a non-intrinsically safe device into the work area with a potentially hazardous atmosphere has also been identified as a contributing factor to the event. The release and subsequent ignition resulted in two contractor injuries. A line stop on the associated pipeline was utilized to make the required repairs. |
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