Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2020-09-09 — OK
Operator
Oneok Ngl Pipeline, Llc
Cause
Incorrect Operation
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)
$0
Incident datetime
2020-09-09 07:20
Report number
Location
OK
Narrative
The 11313 pipeline reached 109% of mop (787 psi versus 720 mop) during a pipeline start-up resulting in a pressure relief valve at the 313 junction relieving to atmosphere. The pressure event was the result of oneok pipeline control opening the 313 pipeline's inlet valve (v26) in error with an upstream pressure exceeding that specified in the operating procedure. In addition, valve v26 did not re-close quickly enough, upon detecting high pressure, to stop the pressure increase prior to the relief valve activating. In immediate response to the event, the scada screen has been updated to provide additional clarity. Additionally, a project is underway to relocate v26's pressure switch to the upstream side of the valve thus preventing the valve from opening under this scenario.
Detailed record list
Report Received Date
2020-10-09 00:00:00
Iyear
2020
Report Number
20200276
Supplemental Number
34358
Report Type
Original 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
Local Datetime
2020-09-09 05:33:00
Location Latitude
38.36916
Location Longitude
-97.83204
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
0.76
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2020-09-09 07:20:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2020-09-09 05:33:00
Restart Datetime
2020-09-09 12:20:00
On Site Datetime
2020-09-09 07:20:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Oneok 11313
Segment Name
Oneok 11313
Onshore State Abbreviation
Ks
Onshore Postal Code
67491
Onshore City Name
Windom
Onshore County Name
Mcpherson
Designated Location
Milepost/valve Station
Designated Name
Oneok 313 Jct
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Other
Item Involved Details
Relief Valve
Installation Year
1970
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Pressure Relief Valve Opened For Approximately 1 Minute And 15 Seconds.
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
16
Est Cost Prop Damage
0
Est Cost Emergency
150
Est Cost Environmental
0
Est Cost Other
1000
Est Cost Other Details
Incident Investigation Costs
Prpty
1166
Accident Psig
787
Mop Psig
720
Accident Pressure
Pressure Exceeded Mop, But Did Not Exceed 110% Of Mop
Pressure Restriction Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Cpm In Place Ind
No
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest Incorrect Action Ind
Yes
Invest Other Ind
Yes
Invest Other Ind Details
Scada Screen Has Been Updated To Provide Additional Clarity.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Pipeline Or Equipment Overpressured
Operation Type
Pipeline Or Equipment Overpressured
Related Failure Follow Ind
Yes
Category Type
Non-Routine Operating Conditions (Abnormal Operations Or Emergencies)
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
B**** T*****
Preparer Title
Regulatory Compliance Specialist
Preparer Email
B***********@o****.com
Preparer Telephone
620-820-3047
Prepared Date
2020-10-09 00:00:00
Authorizer Name
W***** A****
Authorizer Telephone
(918)-591-5081
Authorizer Title
Vp Ngl Pipelines And Terminals
Authorizer Email
W***********@o****.com
Narrative
The 11313 pipeline reached 109% of mop (787 psi versus 720 mop) during a pipeline start-up resulting in a pressure relief valve at the 313 junction relieving to atmosphere. The pressure event was the result of oneok pipeline control opening the 313 pipeline's inlet valve (v26) in error with an upstream pressure exceeding that specified in the operating procedure. In addition, valve v26 did not re-close quickly enough, upon detecting high pressure, to stop the pressure increase prior to the relief valve activating. In immediate response to the event, the scada screen has been updated to provide additional clarity. Additionally, a project is underway to relocate v26's pressure switch to the upstream side of the valve thus preventing the valve from opening under this scenario.
| Report Received Date | 2020-10-09 00:00:00 |
|---|---|
| Iyear | 2020 |
| Report Number | 20200276 |
| Supplemental Number | 34358 |
| Report Type | Original 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 |
| Local Datetime | 2020-09-09 05:33:00 |
| Location Latitude | 38.36916 Google Maps OpenStreetMap |
| Location Longitude | -97.83204 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 | 0.76 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2020-09-09 07:20:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2020-09-09 05:33:00 |
| Restart Datetime | 2020-09-09 12:20:00 |
| On Site Datetime | 2020-09-09 07:20:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Oneok 11313 |
| Segment Name | Oneok 11313 |
| Onshore State Abbreviation | Ks |
| Onshore Postal Code | 67491 |
| Onshore City Name | Windom |
| Onshore County Name | Mcpherson |
| Designated Location | Milepost/valve Station |
| Designated Name | Oneok 313 Jct |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Other |
| Item Involved Details | Relief Valve |
| Installation Year | 1970 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Pressure Relief Valve Opened For Approximately 1 Minute And 15 Seconds. |
| 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 | 16 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 150 |
| Est Cost Environmental | 0 |
| Est Cost Other | 1000 |
| Est Cost Other Details | Incident Investigation Costs |
| Prpty | 1166 |
| Accident Psig | 787 |
| Mop Psig | 720 |
| Accident Pressure | Pressure Exceeded Mop, But Did Not Exceed 110% Of Mop |
| Pressure Restriction Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place Ind | No |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest Incorrect Action Ind | Yes |
| Invest Other Ind | Yes |
| Invest Other Ind Details | Scada Screen Has Been Updated To Provide Additional Clarity. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Pipeline Or Equipment Overpressured |
| Operation Type | Pipeline Or Equipment Overpressured |
| Related Failure Follow Ind | Yes |
| Category Type | Non-Routine Operating Conditions (Abnormal Operations Or Emergencies) |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | B**** T***** |
| Preparer Title | Regulatory Compliance Specialist |
| Preparer Email | B***********@o****.com |
| Preparer Telephone | 620-820-3047 |
| Prepared Date | 2020-10-09 00:00:00 |
| Authorizer Name | W***** A**** |
| Authorizer Telephone | (918)-591-5081 |
| Authorizer Title | Vp Ngl Pipelines And Terminals |
| Authorizer Email | W***********@o****.com |
| Narrative | The 11313 pipeline reached 109% of mop (787 psi versus 720 mop) during a pipeline start-up resulting in a pressure relief valve at the 313 junction relieving to atmosphere. The pressure event was the result of oneok pipeline control opening the 313 pipeline's inlet valve (v26) in error with an upstream pressure exceeding that specified in the operating procedure. In addition, valve v26 did not re-close quickly enough, upon detecting high pressure, to stop the pressure increase prior to the relief valve activating. In immediate response to the event, the scada screen has been updated to provide additional clarity. Additionally, a project is underway to relocate v26's pressure switch to the upstream side of the valve thus preventing the valve from opening under this scenario. |
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