Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2014-07-24 — TX
Operator
Tc Oil Pipeline Operations Inc
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$200
Incident datetime
2014-07-24 15:55
Report number
Location
TX
Narrative
A transcanada employee was performing a walk of the yard and noticed product on the gravel beneath a valve. It was determined that the packing failed on the mov-2201, a rising stem gate valve, causing product to overflow the site glass and spill to the ground. The gate valve was in the closed position at the time of discovery, and was not being operated. That segment of pipeline was commissioned and put into service on 22 jan, 2014. Subsequently, only one inspection was due, and completed, prior to the release. That in-depth inspection (m6) was completed 22 apr, 2014. Immediately on discovery, the oil control centre was notified and isolated the line into the terminal. Following initial cleanup activities, valve maintenance injected tiger pack packing compound, and installed tubing on valve stem cavity drain port to confirm seal was working. Mov-2201 was cycled several times; verified valve stem cavity packing was not leaking at low line pressure. Line returned to normal operating pressure 34 hours later; mov-2201 was observed for 52 hours without issue. An internal incident investigation was conducted and concluded that the resulting seepage was from torrential rains entering through the actuator, pushing out residual oil from the extension out to atmosphere. This particular valve was the last mov on site to get the rain cover, so water may have accumulated in the extension.
Detailed record list
Report Received Date
2014-08-21 00:00:00
Iyear
2014
Report Number
20140298
Supplemental Number
21960
Report Type
Supplemental Final
Operator Id
32334
Name
Tc Oil Pipeline Operations Inc
Operator Street Address
Bank Of America Center - 700 Louisiana Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002-2700
Local Datetime
2014-07-24 15:55:00
Location Latitude
29.991106
Location Longitude
-93.993675
Commodity Released Type
Crude Oil
Unintentional Release Bbls
1
Recovered Bbls
1
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2014-07-24 15:55:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2014-07-24 15:56:00
Restart Datetime
2014-07-25 21:53:00
On Site Datetime
2014-07-24 16:08:00
Nrc Rpt Datetime
2014-07-24 17:20:00
Nrc Rpt Num
1090163
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
0
Pipe Fac Name
Nederland Delivery Terminal
Segment Name
Ndt
Onshore State Abbreviation
Tx
Onshore Postal Code
77651
Onshore City Name
Nederland
Onshore County Name
Jefferson
Designated Location
Milepost/valve Station
Designated Name
Neder
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
Mainline
Valve Mainline Type
Gate
Valve Manufacturer
Valvitalia
Installation Year
2013
Manufactured Year
Unknown
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
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
180
Est Cost Prop Damage
200
Est Cost Emergency
9182
Est Cost Environmental
0
Est Cost Other
0
Prpty
9562
Accident Psig
37
Mop Psig
1337
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
Unknown
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
No
Scada Conf Ind
No
Cpm In Place Ind
No
Investigation Status
Yes, specify investigation result(s): (select all that apply)
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
Other Equipment Failure
Eq Failure Type
Other Equipment Failure
Failure Details
The Packing Failed On Mov-2201, A Rising Stem Gate Valve, Causing Product To Overflow The Site Glass And Spill To The Ground.
Eq Additional Other Ind
Yes
Eq Additional Other Details
Initial Seal Packing And Weather Were Factors
Preparer Name
E*** H*****
Preparer Title
Compliance Specialist
Preparer Email
E**********@t**********.com
Preparer Telephone
4024907253
Prepared Date
2016-12-14 00:00:00
Authorizer Name
D***** C*******
Authorizer Telephone
(832)320-5171
Authorizer Title
Manager Regulatory Compliance
Authorizer Email
D***********@t**********.com
Narrative
A transcanada employee was performing a walk of the yard and noticed product on the gravel beneath a valve. It was determined that the packing failed on the mov-2201, a rising stem gate valve, causing product to overflow the site glass and spill to the ground. The gate valve was in the closed position at the time of discovery, and was not being operated. That segment of pipeline was commissioned and put into service on 22 jan, 2014. Subsequently, only one inspection was due, and completed, prior to the release. That in-depth inspection (m6) was completed 22 apr, 2014. Immediately on discovery, the oil control centre was notified and isolated the line into the terminal. Following initial cleanup activities, valve maintenance injected tiger pack packing compound, and installed tubing on valve stem cavity drain port to confirm seal was working. Mov-2201 was cycled several times; verified valve stem cavity packing was not leaking at low line pressure. Line returned to normal operating pressure 34 hours later; mov-2201 was observed for 52 hours without issue. An internal incident investigation was conducted and concluded that the resulting seepage was from torrential rains entering through the actuator, pushing out residual oil from the extension out to atmosphere. This particular valve was the last mov on site to get the rain cover, so water may have accumulated in the extension.
| Report Received Date | 2014-08-21 00:00:00 |
|---|---|
| Iyear | 2014 |
| Report Number | 20140298 |
| Supplemental Number | 21960 |
| Report Type | Supplemental Final |
| Operator Id | 32334 PHMSA Enforcement |
| Name | Tc Oil Pipeline Operations Inc |
| Operator Street Address | Bank Of America Center - 700 Louisiana Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002-2700 |
| Local Datetime | 2014-07-24 15:55:00 |
| Location Latitude | 29.991106 Google Maps OpenStreetMap |
| Location Longitude | -93.993675 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 1 |
| Recovered Bbls | 1 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2014-07-24 15:55:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2014-07-24 15:56:00 |
| Restart Datetime | 2014-07-25 21:53:00 |
| On Site Datetime | 2014-07-24 16:08:00 |
| Nrc Rpt Datetime | 2014-07-24 17:20:00 |
| Nrc Rpt Num | 1090163 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Valve Type Ind | Remotely Controlled |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Nederland Delivery Terminal |
| Segment Name | Ndt |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77651 |
| Onshore City Name | Nederland |
| Onshore County Name | Jefferson |
| Designated Location | Milepost/valve Station |
| Designated Name | Neder |
| 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 | Mainline |
| Valve Mainline Type | Gate |
| Valve Manufacturer | Valvitalia |
| Installation Year | 2013 |
| Manufactured Year | Unknown |
| 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 | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 180 |
| Est Cost Prop Damage | 200 |
| Est Cost Emergency | 9182 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 9562 |
| Accident Psig | 37 |
| Mop Psig | 1337 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | Unknown |
| 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 | No |
| Scada Conf Ind | No |
| Cpm In Place Ind | No |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| 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 | Other Equipment Failure |
| Eq Failure Type | Other Equipment Failure |
| Failure Details | The Packing Failed On Mov-2201, A Rising Stem Gate Valve, Causing Product To Overflow The Site Glass And Spill To The Ground. |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Initial Seal Packing And Weather Were Factors |
| Preparer Name | E*** H***** |
| Preparer Title | Compliance Specialist |
| Preparer Email | E**********@t**********.com |
| Preparer Telephone | 4024907253 |
| Prepared Date | 2016-12-14 00:00:00 |
| Authorizer Name | D***** C******* |
| Authorizer Telephone | (832)320-5171 |
| Authorizer Title | Manager Regulatory Compliance |
| Authorizer Email | D***********@t**********.com |
| Narrative | A transcanada employee was performing a walk of the yard and noticed product on the gravel beneath a valve. It was determined that the packing failed on the mov-2201, a rising stem gate valve, causing product to overflow the site glass and spill to the ground. The gate valve was in the closed position at the time of discovery, and was not being operated. That segment of pipeline was commissioned and put into service on 22 jan, 2014. Subsequently, only one inspection was due, and completed, prior to the release. That in-depth inspection (m6) was completed 22 apr, 2014. Immediately on discovery, the oil control centre was notified and isolated the line into the terminal. Following initial cleanup activities, valve maintenance injected tiger pack packing compound, and installed tubing on valve stem cavity drain port to confirm seal was working. Mov-2201 was cycled several times; verified valve stem cavity packing was not leaking at low line pressure. Line returned to normal operating pressure 34 hours later; mov-2201 was observed for 52 hours without issue. An internal incident investigation was conducted and concluded that the resulting seepage was from torrential rains entering through the actuator, pushing out residual oil from the extension out to atmosphere. This particular valve was the last mov on site to get the rain cover, so water may have accumulated in the extension. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA