Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2020-06-30 — 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
0 injuries
Property damage (nominal)
$1,500
Incident datetime
2020-06-30 21:15
Report number
Location
OK
Narrative
On june 30th, 2020 at approximately 8:28 pm, oneok pipeline control center received a gas detect alarm for the oneok sterling ii groveton pump station. The gas detect alarm activated the station shutdown and isolated the pump station. Oneok pipeline control dispatched local field operations to the location. At approximately 9:15pm, the oneok field operator arrived on site and noticed vapors in the vicinity of the number 1 pump. Field operator isolated the pump and began evacuating hydrocarbons from the pump and associated piping at 9:25pm. After evacuation of hydrocarbons, a pinhole leak in the outboard bearing cooler return tubing was discovered as the source of the release. The affected tubing was found to be in contact with the outboard oil drain piping, resulting in a pinhole developing in the tubing, because of friction. The tubing was replaced and adjusted so not to contact the oil drain piping and the pump returned to service. Investigation into the cause of the release, determined the pump oil drain piping had inadvertently been installed in contact with the cooler inlet tubing during previous maintenance activities.
Detailed record list
Report Received Date
2020-07-20 00:00:00
Iyear
2020
Report Number
20200210
Supplemental Number
34054
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
2020-06-30 21:25:00
Location Latitude
31.05151
Location Longitude
-95.24527
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
0.14
Intentional Release Bbls
9.86
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations)
Incident Identified Datetime
2020-06-30 21:15:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2020-06-30 20:28:00
Restart Datetime
2020-06-30 21:30:00
On Site Datetime
2020-06-30 21:15:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Groveton Sterling Ii Pump Station
Segment Name
Sterling Ii - Medford To Ombs 12in
Onshore State Abbreviation
Tx
Onshore Postal Code
75845
Onshore City Name
Not Within A Municipality
Onshore County Name
Trinity
Designated Location
Milepost/valve Station
Designated Name
Pump Station
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
Pump
Installation Year
2007
Material Involved
Material Other Than Carbon Steel
Material Details
Stainless 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
Other Pop Ind
Yes
Other Pop Yes No
Yes
Usa Drinking Ind
Yes
Usa Drinking Yes No
Yes
Usa Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
15
Est Cost Prop Damage
1500
Est Cost Emergency
150
Est Cost Environmental
0
Est Cost Other
750
Est Cost Other Details
Release Investigation
Prpty
2415
Accident Psig
766
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed 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
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 or control room issues
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Pump Or Pump-Related Equipment
Eq Failure Type
Pump Or Pump-Related Equipment
Other Pump Ind
Other
Other Pump Details
1/2" Outboard Bearing Cooler Inlet Tubing
Eq Additional Other Ind
Yes
Eq Additional Other Details
Metal To Metal Friction
Preparer Name
M***** C********
Preparer Title
Regulatory Compliance Specialist
Preparer Email
M***************@o****.com
Preparer Telephone
2542928911
Prepared Date
2020-07-20 00:00:00
Authorizer Name
M***** C********
Authorizer Telephone
2542928911
Authorizer Title
Regulatory Compliance Specialist
Authorizer Email
M***************@o****.com
Narrative
On june 30th, 2020 at approximately 8:28 pm, oneok pipeline control center received a gas detect alarm for the oneok sterling ii groveton pump station. The gas detect alarm activated the station shutdown and isolated the pump station. Oneok pipeline control dispatched local field operations to the location. At approximately 9:15pm, the oneok field operator arrived on site and noticed vapors in the vicinity of the number 1 pump. Field operator isolated the pump and began evacuating hydrocarbons from the pump and associated piping at 9:25pm. After evacuation of hydrocarbons, a pinhole leak in the outboard bearing cooler return tubing was discovered as the source of the release. The affected tubing was found to be in contact with the outboard oil drain piping, resulting in a pinhole developing in the tubing, because of friction. The tubing was replaced and adjusted so not to contact the oil drain piping and the pump returned to service. Investigation into the cause of the release, determined the pump oil drain piping had inadvertently been installed in contact with the cooler inlet tubing during previous maintenance activities.
| Report Received Date | 2020-07-20 00:00:00 |
|---|---|
| Iyear | 2020 |
| Report Number | 20200210 |
| Supplemental Number | 34054 |
| 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 | 2020-06-30 21:25:00 |
| Location Latitude | 31.05151 Google Maps OpenStreetMap |
| Location Longitude | -95.24527 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 | 0.14 |
| Intentional Release Bbls | 9.86 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations) |
| Incident Identified Datetime | 2020-06-30 21:15:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2020-06-30 20:28:00 |
| Restart Datetime | 2020-06-30 21:30:00 |
| On Site Datetime | 2020-06-30 21:15:00 |
| 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 | Groveton Sterling Ii Pump Station |
| Segment Name | Sterling Ii - Medford To Ombs 12in |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 75845 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Trinity |
| Designated Location | Milepost/valve Station |
| Designated Name | Pump Station |
| 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 | Pump |
| Installation Year | 2007 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Stainless 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 |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Usa Drinking Ind | Yes |
| Usa Drinking Yes No | Yes |
| Usa Ecological Ind | Yes |
| Usa Ecological Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 15 |
| Est Cost Prop Damage | 1500 |
| Est Cost Emergency | 150 |
| Est Cost Environmental | 0 |
| Est Cost Other | 750 |
| Est Cost Other Details | Release Investigation |
| Prpty | 2415 |
| Accident Psig | 766 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed 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 | 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 or control room issues |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Pump Or Pump-Related Equipment |
| Eq Failure Type | Pump Or Pump-Related Equipment |
| Other Pump Ind | Other |
| Other Pump Details | 1/2" Outboard Bearing Cooler Inlet Tubing |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Metal To Metal Friction |
| Preparer Name | M***** C******** |
| Preparer Title | Regulatory Compliance Specialist |
| Preparer Email | M***************@o****.com |
| Preparer Telephone | 2542928911 |
| Prepared Date | 2020-07-20 00:00:00 |
| Authorizer Name | M***** C******** |
| Authorizer Telephone | 2542928911 |
| Authorizer Title | Regulatory Compliance Specialist |
| Authorizer Email | M***************@o****.com |
| Narrative | On june 30th, 2020 at approximately 8:28 pm, oneok pipeline control center received a gas detect alarm for the oneok sterling ii groveton pump station. The gas detect alarm activated the station shutdown and isolated the pump station. Oneok pipeline control dispatched local field operations to the location. At approximately 9:15pm, the oneok field operator arrived on site and noticed vapors in the vicinity of the number 1 pump. Field operator isolated the pump and began evacuating hydrocarbons from the pump and associated piping at 9:25pm. After evacuation of hydrocarbons, a pinhole leak in the outboard bearing cooler return tubing was discovered as the source of the release. The affected tubing was found to be in contact with the outboard oil drain piping, resulting in a pinhole developing in the tubing, because of friction. The tubing was replaced and adjusted so not to contact the oil drain piping and the pump returned to service. Investigation into the cause of the release, determined the pump oil drain piping had inadvertently been installed in contact with the cooler inlet tubing during previous maintenance activities. |
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