Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2021-07-18 — 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)
$100
Incident datetime
2021-07-18 12:21
Report number
Location
OK
Narrative
Update 11/16/2021 the cracked fitting was sent to a metallurgical testing facility to determine the cause of the failure. The results of the metallurgical analysis indicate that the hairline crack in the stainless steel fitting was due to over-torque. Original on july 18, 2021 at approximately 12:21 pm, oneok pipeline control center received a gas detect alarm for the oneok sterling iii bells pump station. The gas detect alarm activated the station shutdown and isolated the pump station from the pipeline. Oneok pipeline control dispatched local field operations to the location. At approximately 1:38 pm, the oneok field operator arrived on site and noticed vapors in the vicinity of the number 2 pump. The field operator isolated the pump and began evacuating hydrocarbons from the pump and associated piping at 1:48pm. After evacuation of hydrocarbons, a hairline crack in the stainless steel tubing fitting connected to the pumps inboard seal flush stainless steel tubing was discovered as the source of the release. The stainless steel tubing fitting was replaced, the piping and the pump was purged with product, checked for leaks and returned to service.
Detailed record list
Report Received Date
2021-08-16 00:00:00
Iyear
2021
Report Number
20210236
Supplemental Number
36024
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
Local Datetime
2021-07-18 12:21:00
Location Latitude
33.63989
Location Longitude
-96.43154
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
0.28
Intentional Release Bbls
21.72
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
2021-07-18 12:21:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
The Associated Pump Was Isolated And The Pipeline Continued To Operate.
On Site Datetime
2021-07-18 13:48:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Bells Pump Station
Segment Name
Sterling 3
Onshore State Abbreviation
Tx
Onshore Postal Code
75414
Onshore City Name
Not Within A Municipality
Onshore County Name
Grayson
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
Tubing
Installation Year
2021
Material Involved
Material Other Than Carbon Steel
Material Details
Stainless Steel
Release Type
Leak
Leak Type
Crack
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 Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
36
Est Cost Prop Damage
100
Est Cost Emergency
72
Est Cost Environmental
0
Est Cost Other
1250
Est Cost Other Details
Metallurgy Testing
Prpty
1458
Accident Psig
550
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
Controllers actions were not related to the leak
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
Stainless Steel Fitting On Pump Inboard Seal Flush Tubing.
Additional Installation Ind
Yes
Preparer Name
M***** C********
Preparer Title
Regulatory Compliance Specialist
Preparer Email
M***************@o****.com
Preparer Telephone
2542928911
Prepared Date
2021-11-19 00:00:00
Authorizer Name
M***** C********
Authorizer Telephone
2542928911
Authorizer Title
Regulatory Compliance Specialist
Authorizer Email
M***************@o****.com
Narrative
Update 11/16/2021 the cracked fitting was sent to a metallurgical testing facility to determine the cause of the failure. The results of the metallurgical analysis indicate that the hairline crack in the stainless steel fitting was due to over-torque. Original on july 18, 2021 at approximately 12:21 pm, oneok pipeline control center received a gas detect alarm for the oneok sterling iii bells pump station. The gas detect alarm activated the station shutdown and isolated the pump station from the pipeline. Oneok pipeline control dispatched local field operations to the location. At approximately 1:38 pm, the oneok field operator arrived on site and noticed vapors in the vicinity of the number 2 pump. The field operator isolated the pump and began evacuating hydrocarbons from the pump and associated piping at 1:48pm. After evacuation of hydrocarbons, a hairline crack in the stainless steel tubing fitting connected to the pumps inboard seal flush stainless steel tubing was discovered as the source of the release. The stainless steel tubing fitting was replaced, the piping and the pump was purged with product, checked for leaks and returned to service.
| Report Received Date | 2021-08-16 00:00:00 |
|---|---|
| Iyear | 2021 |
| Report Number | 20210236 |
| Supplemental Number | 36024 |
| 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 |
| Local Datetime | 2021-07-18 12:21:00 |
| Location Latitude | 33.63989 Google Maps OpenStreetMap |
| Location Longitude | -96.43154 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 | 0.28 |
| Intentional Release Bbls | 21.72 |
| 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 | 2021-07-18 12:21:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | The Associated Pump Was Isolated And The Pipeline Continued To Operate. |
| On Site Datetime | 2021-07-18 13:48:00 |
| 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 | Bells Pump Station |
| Segment Name | Sterling 3 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 75414 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Grayson |
| 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 | Tubing |
| Installation Year | 2021 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Stainless Steel |
| Release Type | Leak |
| Leak Type | Crack |
| 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 Ecological Ind | Yes |
| Usa Ecological Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 36 |
| Est Cost Prop Damage | 100 |
| Est Cost Emergency | 72 |
| Est Cost Environmental | 0 |
| Est Cost Other | 1250 |
| Est Cost Other Details | Metallurgy Testing |
| Prpty | 1458 |
| Accident Psig | 550 |
| 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 | Controllers actions were not related to the leak |
| 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 | Stainless Steel Fitting On Pump Inboard Seal Flush Tubing. |
| Additional Installation Ind | Yes |
| Preparer Name | M***** C******** |
| Preparer Title | Regulatory Compliance Specialist |
| Preparer Email | M***************@o****.com |
| Preparer Telephone | 2542928911 |
| Prepared Date | 2021-11-19 00:00:00 |
| Authorizer Name | M***** C******** |
| Authorizer Telephone | 2542928911 |
| Authorizer Title | Regulatory Compliance Specialist |
| Authorizer Email | M***************@o****.com |
| Narrative | Update 11/16/2021 the cracked fitting was sent to a metallurgical testing facility to determine the cause of the failure. The results of the metallurgical analysis indicate that the hairline crack in the stainless steel fitting was due to over-torque. Original on july 18, 2021 at approximately 12:21 pm, oneok pipeline control center received a gas detect alarm for the oneok sterling iii bells pump station. The gas detect alarm activated the station shutdown and isolated the pump station from the pipeline. Oneok pipeline control dispatched local field operations to the location. At approximately 1:38 pm, the oneok field operator arrived on site and noticed vapors in the vicinity of the number 2 pump. The field operator isolated the pump and began evacuating hydrocarbons from the pump and associated piping at 1:48pm. After evacuation of hydrocarbons, a hairline crack in the stainless steel tubing fitting connected to the pumps inboard seal flush stainless steel tubing was discovered as the source of the release. The stainless steel tubing fitting was replaced, the piping and the pump was purged with product, checked for leaks and returned to service. |
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