Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2012-09-06 — TX
Operator
Chevron Pipe Line Co
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$470,000
Incident datetime
2012-09-06 12:45
Report number
Location
TX
Narrative
The breton sounds crude oil system was shut-in and out of service in preparation for the coming of hurricane isaac prior to the blind flange leak. The gulf of mexico water depth at the leak area is only 12-feet deep. High wind from hurricane isaac coupled with the shallow water caused high and sustained wave action in the area that may have caused slight movement of the valve setting contributing to the leak.
Detailed record list
Report Received Date
2012-10-01 00:00:00
Iyear
2012
Report Number
20120281
Supplemental Number
17266
Report Type
Supplemental Final
Operator Id
2731
Name
Chevron Pipe Line Co
Operator Street Address
1400 Smith Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2012-09-06 12:45:00
Location Latitude
29.485
Location Longitude
-89.4441666
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.02
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
2012-09-06 12:45:00
System Part Involved
Offshore Pipeline, Including Riser And Riser Bend
On Off Shore
Offshore
Shutdown Due Accident Ind
No
Shutdown Explain
The Pipeline Was Previously Shut Down For Hurricane Isaac
On Site Datetime
2012-09-06 12:45:00
Nrc Rpt Datetime
2012-09-06 14:15:00
Nrc Rpt Num
1023557
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
0
Off Water Depth
12
Off Accident Origin
In State Waters
Offshore State Abbreviation
La
Off Instate Area
Breton Sounds
Off Instate Block
Block 2
Offshore County Name
Plaquemines
Off Area Accident Type
Below Water, Pipe Buried Or Jetted Below Seabed
Pipe Facility Type
Interstate
Item Involved
Flange Assembly
Installation Year
2008
Material Involved
Material Other Than Carbon Steel
Material Details
Flange Gasket Material
Release Type
Leak
Leak Type
Other
Leak Type Other
Flange Gasket
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
2
Est Cost Prop Damage
470000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
470002
Accident Psig
0
Mop Psig
1200
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
7920
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
The Subject Leaking Blind Flange Is Affixed To The Downstream Side Of A Valve.
Operation Complications Ind
Yes
Other Complications Ind
Yes
Inspect Comp Details
Out Of Service Lateral Blind Flanged End
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
The leak was too small to be detected the controller and the line was shut-in at the time of the leak.
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
Gasket
Eq Additional Other Ind
Yes
Eq Additional Other Details
Wave Action Exerted By Hurricane Isaac
Preparer Name
H**** L* L****
Preparer Title
Dot Pipeline Safety Specialist
Preparer Email
H*********@c******.com
Preparer Telephone
337-654-8915
Preparer Fax
337-572-3720
Prepared Date
2013-02-26 00:00:00
Authorizer Name
H**** L* L****
Authorizer Telephone
337-654-8915
Authorizer Title
Dot Pipeline Safety Specialist
Authorizer Email
H*********@c******.com
Narrative
The breton sounds crude oil system was shut-in and out of service in preparation for the coming of hurricane isaac prior to the blind flange leak. The gulf of mexico water depth at the leak area is only 12-feet deep. High wind from hurricane isaac coupled with the shallow water caused high and sustained wave action in the area that may have caused slight movement of the valve setting contributing to the leak.
| Report Received Date | 2012-10-01 00:00:00 |
|---|---|
| Iyear | 2012 |
| Report Number | 20120281 |
| Supplemental Number | 17266 |
| Report Type | Supplemental Final |
| Operator Id | 2731 PHMSA Enforcement |
| Name | Chevron Pipe Line Co |
| Operator Street Address | 1400 Smith Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2012-09-06 12:45:00 |
| Location Latitude | 29.485 Google Maps OpenStreetMap |
| Location Longitude | -89.4441666 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.02 |
| 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 | 2012-09-06 12:45:00 |
| System Part Involved | Offshore Pipeline, Including Riser And Riser Bend |
| On Off Shore | Offshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | The Pipeline Was Previously Shut Down For Hurricane Isaac |
| On Site Datetime | 2012-09-06 12:45:00 |
| Nrc Rpt Datetime | 2012-09-06 14:15:00 |
| Nrc Rpt Num | 1023557 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 |
| Off Water Depth | 12 |
| Off Accident Origin | In State Waters |
| Offshore State Abbreviation | La |
| Off Instate Area | Breton Sounds |
| Off Instate Block | Block 2 |
| Offshore County Name | Plaquemines |
| Off Area Accident Type | Below Water, Pipe Buried Or Jetted Below Seabed |
| Pipe Facility Type | Interstate |
| Item Involved | Flange Assembly |
| Installation Year | 2008 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Flange Gasket Material |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Flange Gasket |
| 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 | 2 |
| Est Cost Prop Damage | 470000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 470002 |
| Accident Psig | 0 |
| Mop Psig | 1200 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 7920 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | The Subject Leaking Blind Flange Is Affixed To The Downstream Side Of A Valve. |
| Operation Complications Ind | Yes |
| Other Complications Ind | Yes |
| Inspect Comp Details | Out Of Service Lateral Blind Flanged End |
| 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 | The leak was too small to be detected the controller and the line was shut-in at the time of the leak. |
| 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 | Gasket |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Wave Action Exerted By Hurricane Isaac |
| Preparer Name | H**** L* L**** |
| Preparer Title | Dot Pipeline Safety Specialist |
| Preparer Email | H*********@c******.com |
| Preparer Telephone | 337-654-8915 |
| Preparer Fax | 337-572-3720 |
| Prepared Date | 2013-02-26 00:00:00 |
| Authorizer Name | H**** L* L**** |
| Authorizer Telephone | 337-654-8915 |
| Authorizer Title | Dot Pipeline Safety Specialist |
| Authorizer Email | H*********@c******.com |
| Narrative | The breton sounds crude oil system was shut-in and out of service in preparation for the coming of hurricane isaac prior to the blind flange leak. The gulf of mexico water depth at the leak area is only 12-feet deep. High wind from hurricane isaac coupled with the shallow water caused high and sustained wave action in the area that may have caused slight movement of the valve setting contributing to the leak. |
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