Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-08-26 — 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)
$6,000
Incident datetime
2019-08-26 23:47
Report number
Location
TX
Narrative
On 8/26/19 at 23:47 enterprise pipeline control received a hazgas alarm followed by a pump shutdown at shin oak energy east pump station. A pipeline technician arrived on site at 01:30 on 8/27/19 and discovered that the release came from a weld by thread swage fitting on the thermal bypass line on the pump #2 discharge valve. An equipment reliability subject matter expert examined the swage fitting and determined that the cause of the release was a crack on the threaded end of the fitting. To prevent recurrence, the standard design for thermal relief systems to be used at enterprise facilities was updated to mitigate vibration. The commodity, hvl, and amount released during this leak did not contaminate the area or require environmental remediation. Trrc incident #2050
Detailed record list
Report Received Date
2019-09-04 00:00:00
Iyear
2019
Report Number
20190283
Supplemental Number
33669
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
2019-08-26 23:47:00
Location Latitude
31.743125
Location Longitude
-98.373875
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
23
Intentional Release Bbls
0
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
2019-08-26 23:47:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Affected Pump Was Isolated
On Site Datetime
2019-08-27 01:30:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Shin Oak Pipeline Energy East Pump Station
Segment Name
Lid 1050
Onshore State Abbreviation
Tx
Onshore Postal Code
76455
Onshore City Name
Gustine
Onshore County Name
Comanche
Designated Location
Milepost/valve Station
Designated Name
Mp 926
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
Other
Item Involved Details
Fitting
Installation Year
2019
Material Involved
Carbon 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
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
404
Est Cost Prop Damage
6000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
6404
Accident Psig
354.1
Mop Psig
1480
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
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
Neither controller nor control room contributed to the incident.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Threaded Connection/coupling Failure
Eq Failure Type
Threaded Connection/coupling Failure
Other Stripped Ind
Threaded Fitting
Additional Vibration Ind
Yes
Preparer Name
T****** A* G********
Preparer Title
Senior Staff Pipeline Compliance Engineer
Preparer Email
T**********@e****.com
Preparer Telephone
713-381-6433
Prepared Date
2020-04-29 00:00:00
Authorizer Name
T****** A* G********
Authorizer Telephone
713-381-6433
Authorizer Title
Senior Staff Pipeline Compliance Engineer
Authorizer Email
T**********@e****.com
Narrative
On 8/26/19 at 23:47 enterprise pipeline control received a hazgas alarm followed by a pump shutdown at shin oak energy east pump station. A pipeline technician arrived on site at 01:30 on 8/27/19 and discovered that the release came from a weld by thread swage fitting on the thermal bypass line on the pump #2 discharge valve. An equipment reliability subject matter expert examined the swage fitting and determined that the cause of the release was a crack on the threaded end of the fitting. To prevent recurrence, the standard design for thermal relief systems to be used at enterprise facilities was updated to mitigate vibration. The commodity, hvl, and amount released during this leak did not contaminate the area or require environmental remediation. Trrc incident #2050
| Report Received Date | 2019-09-04 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190283 |
| Supplemental Number | 33669 |
| 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 | 2019-08-26 23:47:00 |
| Location Latitude | 31.743125 Google Maps OpenStreetMap |
| Location Longitude | -98.373875 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 | 23 |
| Intentional Release Bbls | 0 |
| 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 | 2019-08-26 23:47:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Affected Pump Was Isolated |
| On Site Datetime | 2019-08-27 01:30:00 |
| 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 | Shin Oak Pipeline Energy East Pump Station |
| Segment Name | Lid 1050 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 76455 |
| Onshore City Name | Gustine |
| Onshore County Name | Comanche |
| Designated Location | Milepost/valve Station |
| Designated Name | Mp 926 |
| 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 | Other |
| Item Involved Details | Fitting |
| Installation Year | 2019 |
| Material Involved | Carbon 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 | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 404 |
| Est Cost Prop Damage | 6000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 6404 |
| Accident Psig | 354.1 |
| Mop Psig | 1480 |
| 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 | 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 | Neither controller nor control room contributed to the incident. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Threaded Connection/coupling Failure |
| Eq Failure Type | Threaded Connection/coupling Failure |
| Other Stripped Ind | Threaded Fitting |
| Additional Vibration Ind | Yes |
| Preparer Name | T****** A* G******** |
| Preparer Title | Senior Staff Pipeline Compliance Engineer |
| Preparer Email | T**********@e****.com |
| Preparer Telephone | 713-381-6433 |
| Prepared Date | 2020-04-29 00:00:00 |
| Authorizer Name | T****** A* G******** |
| Authorizer Telephone | 713-381-6433 |
| Authorizer Title | Senior Staff Pipeline Compliance Engineer |
| Authorizer Email | T**********@e****.com |
| Narrative | On 8/26/19 at 23:47 enterprise pipeline control received a hazgas alarm followed by a pump shutdown at shin oak energy east pump station. A pipeline technician arrived on site at 01:30 on 8/27/19 and discovered that the release came from a weld by thread swage fitting on the thermal bypass line on the pump #2 discharge valve. An equipment reliability subject matter expert examined the swage fitting and determined that the cause of the release was a crack on the threaded end of the fitting. To prevent recurrence, the standard design for thermal relief systems to be used at enterprise facilities was updated to mitigate vibration. The commodity, hvl, and amount released during this leak did not contaminate the area or require environmental remediation. Trrc incident #2050 |
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