HL incident on 2015-04-29 — TX

Operator
Enterprise Crude Pipeline Llc
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$45,000
Incident datetime
2015-04-29 17:15
Report number
Location
TX
Narrative
At approximately 17:15 on 4/29/2015 local operations were in the process of filling a new section of piping after construction. In the process of filling, crude started to leak from the top of the flange due to misalignment. The process was shut down and the piping drained. Once the pipe was free of liquid, the flange was unbolted, a new gasket was installed, and was re-torqued. After all bolts were torqued the flange was tested with snoop and no leaks were observed. The area was cleaned up and piping was placed into service.
Detailed record list
Report Received Date
2015-05-14 00:00:00
Iyear
2015
Report Number
20150179
Supplemental Number
20445
Report Type
Original Final
Operator Id
Name
Enterprise Crude Pipeline Llc
Operator Street Address
1100 Louisiana Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2015-04-29 17:15:00
Location Latitude
Location Longitude
Commodity Released Type
Crude Oil
Unintentional Release Bbls
2
Recovered Bbls
2
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2015-04-29 17:15:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
This Segment Of Pipe Was Isolated From Remaining Facility
On Site Datetime
2015-04-29 17:15:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Houston Ship Channel
Segment Name
Ms-6 Line
Onshore State Abbreviation
Tx
Onshore Postal Code
77015
Onshore City Name
Houston
Onshore County Name
Harris
Designated Location
Milepost/valve Station
Designated Name
Hsc
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
2015
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
45000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
45100
Accident Psig
15
Mop Psig
285
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
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
The controllers action was not the cause nor a contributing factor
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
Seal (Not Pump Seal) Or Packing
Ief Addl Misalignment Ind
Yes
Preparer Name
C**** A******
Preparer Title
Pipeline Compliance Specialist
Preparer Email
C*******@e****.com
Preparer Telephone
713-381-6426
Prepared Date
2015-05-14 00:00:00
Authorizer Name
C**** A******
Authorizer Telephone
713-381-6426
Authorizer Title
Pipeline Compliance Specialist
Authorizer Email
C*******@e****.com
Narrative
At approximately 17:15 on 4/29/2015 local operations were in the process of filling a new section of piping after construction. In the process of filling, crude started to leak from the top of the flange due to misalignment. The process was shut down and the piping drained. Once the pipe was free of liquid, the flange was unbolted, a new gasket was installed, and was re-torqued. After all bolts were torqued the flange was tested with snoop and no leaks were observed. The area was cleaned up and piping was placed into service.
Report Received Date 2015-05-14 00:00:00
Iyear 2015
Report Number 20150179
Supplemental Number 20445
Report Type Original Final
Operator Id 30829 PHMSA Enforcement
Name Enterprise Crude Pipeline Llc
Operator Street Address 1100 Louisiana Street
Operator City Name Houston
Operator State Abbreviation TX
Operator Postal Code 77002
Local Datetime 2015-04-29 17:15:00
Location Latitude 29.748058 Google Maps OpenStreetMap
Location Longitude -95.128737 Google Maps OpenStreetMap
Commodity Released Type Crude Oil
Unintentional Release Bbls 2
Recovered Bbls 2
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Accident Identifier Local Operating Personnel, Including Contractors
Operator Type Operator Employee
Incident Identified Datetime 2015-04-29 17:15:00
System Part Involved Onshore Terminal/tank Farm Equipment And Piping
On Off Shore Onshore
Shutdown Due Accident Ind No
Shutdown Explain This Segment Of Pipe Was Isolated From Remaining Facility
On Site Datetime 2015-04-29 17:15:00
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 Houston Ship Channel
Segment Name Ms-6 Line
Onshore State Abbreviation Tx
Onshore Postal Code 77015
Onshore City Name Houston
Onshore County Name Harris
Designated Location Milepost/valve Station
Designated Name Hsc
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 2015
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 45000
Est Cost Emergency 0
Est Cost Environmental 0
Est Cost Other 0
Prpty 45100
Accident Psig 15
Mop Psig 285
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 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 The controllers action was not the cause nor a contributing factor
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 Seal (Not Pump Seal) Or Packing
Ief Addl Misalignment Ind Yes
Preparer Name C**** A******
Preparer Title Pipeline Compliance Specialist
Preparer Email C*******@e****.com
Preparer Telephone 713-381-6426
Prepared Date 2015-05-14 00:00:00
Authorizer Name C**** A******
Authorizer Telephone 713-381-6426
Authorizer Title Pipeline Compliance Specialist
Authorizer Email C*******@e****.com
Narrative At approximately 17:15 on 4/29/2015 local operations were in the process of filling a new section of piping after construction. In the process of filling, crude started to leak from the top of the flange due to misalignment. The process was shut down and the piping drained. Once the pipe was free of liquid, the flange was unbolted, a new gasket was installed, and was re-torqued. After all bolts were torqued the flange was tested with snoop and no leaks were observed. The area was cleaned up and piping was placed into service.

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