Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2018-10-07 — TX
Operator
Enterprise Products Operating 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)
$15,000
Incident datetime
2018-10-07 07:55
Report number
Location
TX
Narrative
On 10/7/2018 at 7:50 am lid 914f-100 (line 9) was lined up to deliver into tank 162. Shortly after start up, operator noticed product leaking on a 10" blind flange on tank 162. The movement was shut down immediately. It was discover that a 10" valve had a broken pin that connected the valve stem to the sealing mechanism inside the valve body. As a result, the valve indicator showed to be open but it remained 100% closed. Additionally, the pressure transmitter that monitored the line pressure had blockage in the port so it did not trigger the sdv to close, resulting in an overpressure. The overpressure caused a leak at the blind flange. No product was recovered. The 10" valve was replaced and the pressure transmitter ports were cleared of debris. Trrc was notified of the accident immediately following confirmation of volume loss exceeding the 5 gallon threshold on 10/8/2018 at 17:26hrs; trrc incident #1857
Detailed record list
Report Received Date
2018-11-02 00:00:00
Iyear
2018
Report Number
20180337
Supplemental Number
31146
Report Type
Supplemental Final
Operator Id
31618
Name
Enterprise Products Operating Llc
Operator Street Address
1100 Louisiana Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2018-10-07 07:55:00
Location Latitude
29.681722
Location Longitude
-95.014809
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
1.5
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2018-10-07 07:55:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2018-10-07 07:55:00
Restart Datetime
2018-10-22 08:00:00
On Site Datetime
2018-10-07 07:55:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Lid 914f-100
Segment Name
Mont Belvieu To Morgans Point #9
Onshore State Abbreviation
Tx
Onshore Postal Code
77571
Onshore City Name
Morgan's Point
Onshore County Name
Harris
Designated Location
Milepost/valve Station
Designated Name
Mp 0.0
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
Intrastate
Item Involved
Flange Assembly
Installation Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Connection 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
Est Cost Oper Paid
0
Est Cost Gas Released
100
Est Cost Prop Damage
15000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
15100
Accident Psig
790
Mop Psig
285
Accident Pressure
Pressure Exceeded 110% Of 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
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
Valve line up was done manual by operations - not by control room
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Failure Of Equipment Body (Except Pump), Tank Plate, Or Other Material
Eq Failure Type
Failure Of Equipment Body (Except Pump), Tank Plate, Or Other Material
Eq Additional Other Ind
Yes
Eq Additional Other Details
Pin That Connects Valve Stem To Valve Gate Was Broke
Preparer Name
N*** B******
Preparer Title
Sr. Pipeline Compliance Specialist
Preparer Email
W********@e****.com
Preparer Telephone
713-381-3536
Prepared Date
2018-11-07 00:00:00
Authorizer Name
N*** T*****
Authorizer Telephone
713-381-2493
Authorizer Title
Manager Compliance
Authorizer Email
N*******@e****.com
Narrative
On 10/7/2018 at 7:50 am lid 914f-100 (line 9) was lined up to deliver into tank 162. Shortly after start up, operator noticed product leaking on a 10" blind flange on tank 162. The movement was shut down immediately. It was discover that a 10" valve had a broken pin that connected the valve stem to the sealing mechanism inside the valve body. As a result, the valve indicator showed to be open but it remained 100% closed. Additionally, the pressure transmitter that monitored the line pressure had blockage in the port so it did not trigger the sdv to close, resulting in an overpressure. The overpressure caused a leak at the blind flange. No product was recovered. The 10" valve was replaced and the pressure transmitter ports were cleared of debris. Trrc was notified of the accident immediately following confirmation of volume loss exceeding the 5 gallon threshold on 10/8/2018 at 17:26hrs; trrc incident #1857
| Report Received Date | 2018-11-02 00:00:00 |
|---|---|
| Iyear | 2018 |
| Report Number | 20180337 |
| Supplemental Number | 31146 |
| Report Type | Supplemental Final |
| Operator Id | 31618 PHMSA Enforcement |
| Name | Enterprise Products Operating Llc |
| Operator Street Address | 1100 Louisiana Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2018-10-07 07:55:00 |
| Location Latitude | 29.681722 Google Maps OpenStreetMap |
| Location Longitude | -95.014809 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 | 1.5 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2018-10-07 07:55:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2018-10-07 07:55:00 |
| Restart Datetime | 2018-10-22 08:00:00 |
| On Site Datetime | 2018-10-07 07:55:00 |
| 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 | Lid 914f-100 |
| Segment Name | Mont Belvieu To Morgans Point #9 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77571 |
| Onshore City Name | Morgan's Point |
| Onshore County Name | Harris |
| Designated Location | Milepost/valve Station |
| Designated Name | Mp 0.0 |
| 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 | Intrastate |
| Item Involved | Flange Assembly |
| Installation Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Connection 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 |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 100 |
| Est Cost Prop Damage | 15000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 15100 |
| Accident Psig | 790 |
| Mop Psig | 285 |
| Accident Pressure | Pressure Exceeded 110% Of 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 | 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 | Valve line up was done manual by operations - not by control room |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Failure Of Equipment Body (Except Pump), Tank Plate, Or Other Material |
| Eq Failure Type | Failure Of Equipment Body (Except Pump), Tank Plate, Or Other Material |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Pin That Connects Valve Stem To Valve Gate Was Broke |
| Preparer Name | N*** B****** |
| Preparer Title | Sr. Pipeline Compliance Specialist |
| Preparer Email | W********@e****.com |
| Preparer Telephone | 713-381-3536 |
| Prepared Date | 2018-11-07 00:00:00 |
| Authorizer Name | N*** T***** |
| Authorizer Telephone | 713-381-2493 |
| Authorizer Title | Manager Compliance |
| Authorizer Email | N*******@e****.com |
| Narrative | On 10/7/2018 at 7:50 am lid 914f-100 (line 9) was lined up to deliver into tank 162. Shortly after start up, operator noticed product leaking on a 10" blind flange on tank 162. The movement was shut down immediately. It was discover that a 10" valve had a broken pin that connected the valve stem to the sealing mechanism inside the valve body. As a result, the valve indicator showed to be open but it remained 100% closed. Additionally, the pressure transmitter that monitored the line pressure had blockage in the port so it did not trigger the sdv to close, resulting in an overpressure. The overpressure caused a leak at the blind flange. No product was recovered. The 10" valve was replaced and the pressure transmitter ports were cleared of debris. Trrc was notified of the accident immediately following confirmation of volume loss exceeding the 5 gallon threshold on 10/8/2018 at 17:26hrs; trrc incident #1857 |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA