Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-04-17 — 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)
$83,000
Incident datetime
2015-04-17 06:48
Report number
Location
TX
Narrative
Enterprise operations supervisor was notified of a hydrocarbon leak at the mermentau pig trap site (mp 53.24) on the 12 inch lou-tex ngl pipeline in mermentau, louisiana. Enterprise houston operations control center was notified immediately to shut-in the upstream pipeline mov at castle cove valve site (hwy. 92) (mp 55.39). Downstream pump station at section 28 pulled the line pressure down to 200 psi and hcc shut-in the mov at clint road valve site (mp 34.36). A nitrogen pump truck was contracted to displace the hydrocarbons from the hwy 92 valve site across the mermentau site continuing on to the clint rd. Site. The mermentau trap isolation valves were closed as soon as the hydrocarbon release was stopped by the nitrogen displacement. No injuries reported, la. State police notifications were made, incident # 15-01484 based on the results of testing and analysis, it is concluded both the pipe nipple and bourdon tube failed to fatigue cracking which may have been produced by mechanical movements of the pig catcher, pressure pulsations within the pig catcher, or a combination of the two. Note: a second nrc number is associated with this report - # 1113985, updated volume was reported on 4/18/15 at 9:56 am. Note: time line of accident added to report on july 18, 2016 - part a4 6:48 am was time the release was determined to meet accident reporting criteria based upon the volume released exceeding 5 gallons. The accident was not immediately reportable to the nrc until 9:15 am when the determination was made that the accident would result in repairs exceeding $50,000.
Detailed record list
Report Received Date
2015-05-15 00:00:00
Iyear
2015
Report Number
20150180
Supplemental Number
21536
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
2015-04-17 06:48:00
Location Latitude
30.16
Location Longitude
-92.55346
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Y-Grade
Unintentional Release Bbls
2535
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
Contractor Working For The Operator
Incident Identified Datetime
2015-04-17 06:48:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-04-17 06:48:00
Restart Datetime
2015-04-18 13:30:00
On Site Datetime
2015-04-17 06:50:00
Nrc Rpt Datetime
2015-04-17 10:06:00
Nrc Rpt Num
1113874
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Automatic
Downstream Valve Type Ind
Automatic
Num Pub Evacuated
37
Pipe Fac Name
Lou Tex Ngl 12"
Segment Name
24740
Onshore State Abbreviation
La
Onshore Postal Code
70559
Onshore City Name
Not Within A Municipality
Onshore County Name
Acadia Parish
Designated Location
Milepost/valve Station
Designated Name
Mp 53.24
Federal
No
Location Type
Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Other
Item Involved Details
Pipe Nipple Failure
Installation Year
2001
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
55000
Est Cost Prop Damage
83000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
32000
Est Cost Other Details
Stress Engineering Analysis.
Prpty
170000
Accident Psig
740
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
73920
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
Yes
Scada Conf Ind
Yes
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
Yes
Cpm Conf Ind
Yes
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
Other Equipment Failure
Eq Failure Type
Other Equipment Failure
Failure Details
A Pipe Nipple And Bourdon Tube Failed To Fatigue Cracking.
Additional Vibration Ind
Yes
Preparer Name
N***** L* G*** J**
Preparer Title
Senior Pipeline Compliance Specialist
Preparer Email
N****@e****.com
Preparer Telephone
9854934629
Prepared Date
2016-07-18 00:00:00
Authorizer Name
N***** L* G*** J**
Authorizer Telephone
9854934629
Authorizer Title
Senior Pipeline Compliance Specialist
Authorizer Email
N****@e****.com
Narrative
Enterprise operations supervisor was notified of a hydrocarbon leak at the mermentau pig trap site (mp 53.24) on the 12 inch lou-tex ngl pipeline in mermentau, louisiana. Enterprise houston operations control center was notified immediately to shut-in the upstream pipeline mov at castle cove valve site (hwy. 92) (mp 55.39). Downstream pump station at section 28 pulled the line pressure down to 200 psi and hcc shut-in the mov at clint road valve site (mp 34.36). A nitrogen pump truck was contracted to displace the hydrocarbons from the hwy 92 valve site across the mermentau site continuing on to the clint rd. Site. The mermentau trap isolation valves were closed as soon as the hydrocarbon release was stopped by the nitrogen displacement. No injuries reported, la. State police notifications were made, incident # 15-01484 based on the results of testing and analysis, it is concluded both the pipe nipple and bourdon tube failed to fatigue cracking which may have been produced by mechanical movements of the pig catcher, pressure pulsations within the pig catcher, or a combination of the two. Note: a second nrc number is associated with this report - # 1113985, updated volume was reported on 4/18/15 at 9:56 am. Note: time line of accident added to report on july 18, 2016 - part a4 6:48 am was time the release was determined to meet accident reporting criteria based upon the volume released exceeding 5 gallons. The accident was not immediately reportable to the nrc until 9:15 am when the determination was made that the accident would result in repairs exceeding $50,000.
| Report Received Date | 2015-05-15 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150180 |
| Supplemental Number | 21536 |
| 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 | 2015-04-17 06:48:00 |
| Location Latitude | 30.16 Google Maps OpenStreetMap |
| Location Longitude | -92.55346 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Other Hvl |
| Commodity Details | Y-Grade |
| Unintentional Release Bbls | 2535 |
| 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 | Contractor Working For The Operator |
| Incident Identified Datetime | 2015-04-17 06:48:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-04-17 06:48:00 |
| Restart Datetime | 2015-04-18 13:30:00 |
| On Site Datetime | 2015-04-17 06:50:00 |
| Nrc Rpt Datetime | 2015-04-17 10:06:00 |
| Nrc Rpt Num | 1113874 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Automatic |
| Downstream Valve Type Ind | Automatic |
| Num Pub Evacuated | 37 |
| Pipe Fac Name | Lou Tex Ngl 12" |
| Segment Name | 24740 |
| Onshore State Abbreviation | La |
| Onshore Postal Code | 70559 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Acadia Parish |
| Designated Location | Milepost/valve Station |
| Designated Name | Mp 53.24 |
| Federal | No |
| Location Type | Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Other |
| Item Involved Details | Pipe Nipple Failure |
| Installation Year | 2001 |
| 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 | 55000 |
| Est Cost Prop Damage | 83000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 32000 |
| Est Cost Other Details | Stress Engineering Analysis. |
| Prpty | 170000 |
| Accident Psig | 740 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 73920 |
| 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 | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | Yes |
| Cpm Conf Ind | Yes |
| 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 | Other Equipment Failure |
| Eq Failure Type | Other Equipment Failure |
| Failure Details | A Pipe Nipple And Bourdon Tube Failed To Fatigue Cracking. |
| Additional Vibration Ind | Yes |
| Preparer Name | N***** L* G*** J** |
| Preparer Title | Senior Pipeline Compliance Specialist |
| Preparer Email | N****@e****.com |
| Preparer Telephone | 9854934629 |
| Prepared Date | 2016-07-18 00:00:00 |
| Authorizer Name | N***** L* G*** J** |
| Authorizer Telephone | 9854934629 |
| Authorizer Title | Senior Pipeline Compliance Specialist |
| Authorizer Email | N****@e****.com |
| Narrative | Enterprise operations supervisor was notified of a hydrocarbon leak at the mermentau pig trap site (mp 53.24) on the 12 inch lou-tex ngl pipeline in mermentau, louisiana. Enterprise houston operations control center was notified immediately to shut-in the upstream pipeline mov at castle cove valve site (hwy. 92) (mp 55.39). Downstream pump station at section 28 pulled the line pressure down to 200 psi and hcc shut-in the mov at clint road valve site (mp 34.36). A nitrogen pump truck was contracted to displace the hydrocarbons from the hwy 92 valve site across the mermentau site continuing on to the clint rd. Site. The mermentau trap isolation valves were closed as soon as the hydrocarbon release was stopped by the nitrogen displacement. No injuries reported, la. State police notifications were made, incident # 15-01484 based on the results of testing and analysis, it is concluded both the pipe nipple and bourdon tube failed to fatigue cracking which may have been produced by mechanical movements of the pig catcher, pressure pulsations within the pig catcher, or a combination of the two. Note: a second nrc number is associated with this report - # 1113985, updated volume was reported on 4/18/15 at 9:56 am. Note: time line of accident added to report on july 18, 2016 - part a4 6:48 am was time the release was determined to meet accident reporting criteria based upon the volume released exceeding 5 gallons. The accident was not immediately reportable to the nrc until 9:15 am when the determination was made that the accident would result in repairs exceeding $50,000. |
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