Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2017-07-19 — 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)
$25
Incident datetime
2017-07-19 03:26
Report number
Location
OK
Narrative
At approximately 03:26 am on july 19th 2017, oneok pipeline control center received a hazardous atmospheric lock-out and station shutdown at oneok's midland pump station located near midland, texas. Local field operations employees were notified and dispatched to the location. Field employees arrived at the station at approximately 04:27 am and identified a "hissing" sound coming from the door on the scraper trap. Employees isolated the trap and relieved the residual product to the flare system. Upon opening the scraper trap door, it was determined the o-ring in the closure had failed causing the release. A new o-ring was installed and the scraper trap was returned to service at approximately 05:57 am.
Detailed record list
Report Received Date
2017-08-07 00:00:00
Iyear
2017
Report Number
20170239
Supplemental Number
22528
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
2017-07-19 03:26:00
Location Latitude
32.019869
Location Longitude
-102.022412
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
0.2
Intentional Release Bbls
2.1
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
2017-07-19 03:26:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Station Was Isolated And Pipeline Continued To Flow By Station
On Site Datetime
2017-07-19 04:15:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Midland Pump Station
Segment Name
Oneok Txl0373a 8" North Lateral (Index 21373)
Onshore State Abbreviation
Tx
Onshore Postal Code
79782
Onshore City Name
Not Within A Municipality
Onshore County Name
Midland
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
Scraper/pig Trap
Installation Year
2016
Material Involved
Material Other Than Carbon Steel
Material Details
O-Ring
Release Type
Leak
Leak Type
Other
Leak Type Other
O-Ring Failure
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
High Pop Ind
Yes
High Pop Yes No
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Usa Drinking Ind
Yes
Usa Drinking Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
8
Est Cost Prop Damage
25
Est Cost Emergency
150
Est Cost Environmental
0
Est Cost Other
0
Prpty
183
Accident Psig
500
Mop Psig
1250
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
6
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
Yes
Scada Conf Ind
Yes
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
No controller actions had taken place prior to the release.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
O-Ring
Eq Additional Other Ind
Yes
Eq Additional Other Details
Normal Wear And Tear
Preparer Name
N*** J****
Preparer Title
Requlatory Compliance Manager
Preparer Email
N*********@o****.com
Preparer Telephone
580-395-6304
Preparer Fax
580-395-2933
Prepared Date
2017-08-07 00:00:00
Authorizer Name
N*** J****
Authorizer Telephone
580-395-6304
Authorizer Title
Regulatory Compliance Manager
Authorizer Email
N*********@o****.com
Narrative
At approximately 03:26 am on july 19th 2017, oneok pipeline control center received a hazardous atmospheric lock-out and station shutdown at oneok's midland pump station located near midland, texas. Local field operations employees were notified and dispatched to the location. Field employees arrived at the station at approximately 04:27 am and identified a "hissing" sound coming from the door on the scraper trap. Employees isolated the trap and relieved the residual product to the flare system. Upon opening the scraper trap door, it was determined the o-ring in the closure had failed causing the release. A new o-ring was installed and the scraper trap was returned to service at approximately 05:57 am.
| Report Received Date | 2017-08-07 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170239 |
| Supplemental Number | 22528 |
| 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 | 2017-07-19 03:26:00 |
| Location Latitude | 32.019869 Google Maps OpenStreetMap |
| Location Longitude | -102.022412 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 | 0.2 |
| Intentional Release Bbls | 2.1 |
| 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 | 2017-07-19 03:26:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Station Was Isolated And Pipeline Continued To Flow By Station |
| On Site Datetime | 2017-07-19 04:15:00 |
| Nrc Rpt Num | Nrc Notification Not Required 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 | Midland Pump Station |
| Segment Name | Oneok Txl0373a 8" North Lateral (Index 21373) |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79782 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Midland |
| 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 | Scraper/pig Trap |
| Installation Year | 2016 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | O-Ring |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | O-Ring Failure |
| 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 |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Usa Drinking Ind | Yes |
| Usa Drinking Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 8 |
| Est Cost Prop Damage | 25 |
| Est Cost Emergency | 150 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 183 |
| Accident Psig | 500 |
| Mop Psig | 1250 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 6 |
| 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 | Yes |
| Scada Conf Ind | Yes |
| 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 | No controller actions had taken place prior to the release. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | O-Ring |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Normal Wear And Tear |
| Preparer Name | N*** J**** |
| Preparer Title | Requlatory Compliance Manager |
| Preparer Email | N*********@o****.com |
| Preparer Telephone | 580-395-6304 |
| Preparer Fax | 580-395-2933 |
| Prepared Date | 2017-08-07 00:00:00 |
| Authorizer Name | N*** J**** |
| Authorizer Telephone | 580-395-6304 |
| Authorizer Title | Regulatory Compliance Manager |
| Authorizer Email | N*********@o****.com |
| Narrative | At approximately 03:26 am on july 19th 2017, oneok pipeline control center received a hazardous atmospheric lock-out and station shutdown at oneok's midland pump station located near midland, texas. Local field operations employees were notified and dispatched to the location. Field employees arrived at the station at approximately 04:27 am and identified a "hissing" sound coming from the door on the scraper trap. Employees isolated the trap and relieved the residual product to the flare system. Upon opening the scraper trap door, it was determined the o-ring in the closure had failed causing the release. A new o-ring was installed and the scraper trap was returned to service at approximately 05:57 am. |
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