Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2018-08-31 — OK
Operator
Explorer Pipeline Co
Cause
Equipment Failure
Commodity
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$5,000
Incident datetime
2018-08-31 07:50
Report number
Location
OK
Narrative
On august 31, 2018 an explorer pipeline technician was conducting a station inspection of the vinita pump station and identified a release from the pump station's control valve. The pump station was isolated from the pipeline at 07:53 on august 31, 2018, then the pipeline was shut down at 08:00 on august 31, 2018 to allow personnel to respond to the release, and conduct necessary valve repairs. The highest associated pressures the previous 30 days was case pressure of 929 psig with an mop of 1,440 psig, and a discharge pressure of 848 psig with a 973 psig mop. The release was totally contained on the property, and any impacted soil within the pump station is being addressed and properly managed. The direct cause of the release was from the bushings of a fisher v25 control valve. The bushings were submitted to a third party for a failure analysis. The third party failure analysis reflected evidence of viton seal abrasion on the surface of the bushing that is associated with the control valve. There is no evidence of a breakdown of the seal from compatibility issues. Microscopic examination of seal surfaces and cross-sections revealed no obvious crazing of any of the bushing seal surfaces. High magnification examination of the rubber indicated evidence of fine lines in the rubber that are indicative of rubber abrasion/chaffing. The examination of the crack morphology indicated that the crack began at the id of the base of the v-shape in the seal at an area of a rubber defect/tear. The crack morphology surfaces are clearly distinctive when compared to the lab fracture features in the microscopy. The direct cause of the microscopic defect in the surface at the origin can not be determined. There is no evidence that the bushings were incorrectly installed. As soil was removed, part d question 4 was revised to yes.
Detailed record list
Report Received Date
2018-09-28 00:00:00
Iyear
2018
Report Number
20180287
Supplemental Number
31872
Report Type
Supplemental Final
Operator Id
4805
Name
Explorer Pipeline Co
Operator Street Address
Po Box 2650
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74101
Local Datetime
2018-08-31 07:50:00
Location Latitude
36.64234919
Location Longitude
-94.9731575
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Gasoline (Non-Ethanol)
Unintentional Release Bbls
0.5
Recovered Bbls
0.5
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2018-08-31 07:50:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2018-08-31 08:00:00
Restart Datetime
2018-08-31 13:57:00
On Site Datetime
2018-08-31 07:50:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Vinita Pump Station
Segment Name
Vinita Pump Station
Onshore State Abbreviation
Ok
Onshore Postal Code
74331
Onshore City Name
Afton
Onshore County Name
Delaware
Designated Location
Milepost/valve Station
Designated Name
75.9
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
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
2014
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
50
Est Cost Prop Damage
5000
Est Cost Emergency
10000
Est Cost Environmental
20250
Est Cost Other
0
Prpty
35300
Accident Psig
553
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
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
Yes, specify investigation result(s): (select all that apply)
Invest Schedule Ind
Yes
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Control Valve Ind
Yes
Additional Defect Ind
Yes
Preparer Name
K**** B****
Preparer Title
Manager Dot And Regulatory
Preparer Email
K*****@e***.com
Preparer Telephone
9184935104
Prepared Date
2019-03-29 00:00:00
Authorizer Name
J** S****
Authorizer Telephone
9184935143
Authorizer Title
Director Engineering And Hsse
Authorizer Email
J*****@e***.com
Narrative
On august 31, 2018 an explorer pipeline technician was conducting a station inspection of the vinita pump station and identified a release from the pump station's control valve. The pump station was isolated from the pipeline at 07:53 on august 31, 2018, then the pipeline was shut down at 08:00 on august 31, 2018 to allow personnel to respond to the release, and conduct necessary valve repairs. The highest associated pressures the previous 30 days was case pressure of 929 psig with an mop of 1,440 psig, and a discharge pressure of 848 psig with a 973 psig mop. The release was totally contained on the property, and any impacted soil within the pump station is being addressed and properly managed. The direct cause of the release was from the bushings of a fisher v25 control valve. The bushings were submitted to a third party for a failure analysis. The third party failure analysis reflected evidence of viton seal abrasion on the surface of the bushing that is associated with the control valve. There is no evidence of a breakdown of the seal from compatibility issues. Microscopic examination of seal surfaces and cross-sections revealed no obvious crazing of any of the bushing seal surfaces. High magnification examination of the rubber indicated evidence of fine lines in the rubber that are indicative of rubber abrasion/chaffing. The examination of the crack morphology indicated that the crack began at the id of the base of the v-shape in the seal at an area of a rubber defect/tear. The crack morphology surfaces are clearly distinctive when compared to the lab fracture features in the microscopy. The direct cause of the microscopic defect in the surface at the origin can not be determined. There is no evidence that the bushings were incorrectly installed. As soil was removed, part d question 4 was revised to yes.
| Report Received Date | 2018-09-28 00:00:00 |
|---|---|
| Iyear | 2018 |
| Report Number | 20180287 |
| Supplemental Number | 31872 |
| Report Type | Supplemental Final |
| Operator Id | 4805 PHMSA Enforcement |
| Name | Explorer Pipeline Co |
| Operator Street Address | Po Box 2650 |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74101 |
| Local Datetime | 2018-08-31 07:50:00 |
| Location Latitude | 36.64234919 Google Maps OpenStreetMap |
| Location Longitude | -94.9731575 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Gasoline (Non-Ethanol) |
| Unintentional Release Bbls | 0.5 |
| Recovered Bbls | 0.5 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2018-08-31 07:50:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2018-08-31 08:00:00 |
| Restart Datetime | 2018-08-31 13:57:00 |
| On Site Datetime | 2018-08-31 07:50:00 |
| 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 | Vinita Pump Station |
| Segment Name | Vinita Pump Station |
| Onshore State Abbreviation | Ok |
| Onshore Postal Code | 74331 |
| Onshore City Name | Afton |
| Onshore County Name | Delaware |
| Designated Location | Milepost/valve Station |
| Designated Name | 75.9 |
| 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 | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | 2014 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 50 |
| Est Cost Prop Damage | 5000 |
| Est Cost Emergency | 10000 |
| Est Cost Environmental | 20250 |
| Est Cost Other | 0 |
| Prpty | 35300 |
| Accident Psig | 553 |
| 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 | 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 | Yes, specify investigation result(s): (select all that apply) |
| Invest Schedule Ind | Yes |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Control Valve Ind | Yes |
| Additional Defect Ind | Yes |
| Preparer Name | K**** B**** |
| Preparer Title | Manager Dot And Regulatory |
| Preparer Email | K*****@e***.com |
| Preparer Telephone | 9184935104 |
| Prepared Date | 2019-03-29 00:00:00 |
| Authorizer Name | J** S**** |
| Authorizer Telephone | 9184935143 |
| Authorizer Title | Director Engineering And Hsse |
| Authorizer Email | J*****@e***.com |
| Narrative | On august 31, 2018 an explorer pipeline technician was conducting a station inspection of the vinita pump station and identified a release from the pump station's control valve. The pump station was isolated from the pipeline at 07:53 on august 31, 2018, then the pipeline was shut down at 08:00 on august 31, 2018 to allow personnel to respond to the release, and conduct necessary valve repairs. The highest associated pressures the previous 30 days was case pressure of 929 psig with an mop of 1,440 psig, and a discharge pressure of 848 psig with a 973 psig mop. The release was totally contained on the property, and any impacted soil within the pump station is being addressed and properly managed. The direct cause of the release was from the bushings of a fisher v25 control valve. The bushings were submitted to a third party for a failure analysis. The third party failure analysis reflected evidence of viton seal abrasion on the surface of the bushing that is associated with the control valve. There is no evidence of a breakdown of the seal from compatibility issues. Microscopic examination of seal surfaces and cross-sections revealed no obvious crazing of any of the bushing seal surfaces. High magnification examination of the rubber indicated evidence of fine lines in the rubber that are indicative of rubber abrasion/chaffing. The examination of the crack morphology indicated that the crack began at the id of the base of the v-shape in the seal at an area of a rubber defect/tear. The crack morphology surfaces are clearly distinctive when compared to the lab fracture features in the microscopy. The direct cause of the microscopic defect in the surface at the origin can not be determined. There is no evidence that the bushings were incorrectly installed. As soil was removed, part d question 4 was revised to yes. |
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