Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2022-07-06 — TX
Operator
Chevron Pipe Line Co
Cause
Incorrect Operation
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2022-07-06 14:45
Report number
Location
TX
Narrative
At approximately 1445 cdt on 06jul22, after making a second subsea pipeline cut to allow for flanges to be installed to support de-oiling the 12-inch south timbalier 130 pipeline, 30.8 gallons of crude oil escaped the pollution dome mitigation and was released to the gulf of mexico. Plumbers plugs were installed on the cut square ends to mitigate further release. The sheen was not scimmable and the onsite response vessel deployed sorbent boom to collect the recoverable oil portion. At approximately 12:30 cdt on 06jul22, divers inspected the plumber plugs at the second cut location and noted no discharge or leakage. At approximately 02:30 cdt on 07jul22, the divers removed the plumbers plug on the pipeline end of the second cut in order to install ported blind flange. A pollution dome was in place, but interfered with the rigging used to support the end connector during the connector installation. Therefore, the pollution dome was unable to contain all releases and additional 0.125 gallons of crude oil was released to the gulf of mexico that naturally dissipated. The total volume associated with the second subsea pipeline cut from the start of the cut until the permanent end connector and ported blind flange were installed was estimated to be 30.925 gallons. Plidco end connectors and blind flanges were installed over the square cut ends and the two pipe sections created by cutting activities have been recovered.
Detailed record list
Report Received Date
2022-08-05 00:00:00
Iyear
2022
Report Number
20220171
Supplemental Number
37654
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
2022-07-06 14:45:00
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
28.93435
Location Longitude
-90.18049
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.73
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
2022-07-06 14:45:00
System Part Involved
Offshore Pipeline, Including Riser And Riser Bend
On Off Shore
Offshore
Status When Identified
Idle
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Initial Responder Com Datetime
2022-07-06 15:11:00
On Site Datetime
2022-07-06 14:45:00
Confirmed Discovery Datetime
2022-07-06 14:45:00
Nrc Rpt Datetime
2022-07-06 15:29:00
Nrc Rpt Num
1340760
Additional Nrc Report Numbers
1340762
Ignite Ind
No
Upstream Action Taken
Operational Control
Upstream Oprtnl Cntrl Detail
This Release Was A Result Of De-Inventory Of An Idle Pipeline.
Downstream Action Taken
Operational Control
Downstream Oprtnl Cntrl Detail
This Release Was A Result Of De-Inventory Of An Idle Pipeline.
Num Pub Evacuated
0
Pipe Fac Name
St130
Segment Name
Psn3958
Off Water Depth
69
Off Accident Origin
On The Outer Continental Shelf (Ocs)
Ocs Type
Ocs-Gulf Of Mexico
Off Ocs Area
St41
Off Ocs Block
St41
Off Area Accident Type
Below Water, Pipe On Or Above Seabed
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Puddle Weld Ind
No
Pipe Diameter
12
Pipe Wall Thickness
0.5
Pipe Smys
35000
Pipe Specification
Unknown
Pipe Seam Type
Seamless
Pipe Manufacturer
Unknown
Pipe Coating Type
Coal Tar
Coating Applied Ind
No
Installation Year
1976
Manufactured Year
1976
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
This Release Was The Result Of De-Inventory Of An Idle Pipeline.
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
0
Est Cost Prop Damage
0
Est Cost Emergency
2500
Est Cost Environmental
0
Est Cost Other
0
Est Cost Other Details
Company Personnel And Contractors Were Already On Site To De-Inventory Line
Prpty
2500
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
0
Mop Psig
1440
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
2017-03-23 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
No
Scada Functional Ind
No
Scada Detection Ind
No
Scada Conf Ind
No
Cpm In Place Ind
No
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the accident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Damage By Operator Or Operator's Contractor Not Related To Excavation And Not Due To Motorized Vehicle/equipment Damage
Operation Type
Damage By Operator Or Operator's Contractor Not Related To Excavation And Not Due To Motorized Vehicle/equipment Damage
Related Inadequate Proc Ind
Yes
Category Type
Decommissioning
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
G****** S* P*****
Preparer Title
Senior Regulatory Coordinator
Preparer Email
P******@c******.com
Preparer Telephone
8328544596
Prepared Date
2023-01-31 00:00:00
Authorizer Name
G****** S* P*****
Authorizer Telephone
8328544596
Authorizer Title
Senior Regulatory Coordinator
Authorizer Email
P******@c******.com
Narrative
At approximately 1445 cdt on 06jul22, after making a second subsea pipeline cut to allow for flanges to be installed to support de-oiling the 12-inch south timbalier 130 pipeline, 30.8 gallons of crude oil escaped the pollution dome mitigation and was released to the gulf of mexico. Plumbers plugs were installed on the cut square ends to mitigate further release. The sheen was not scimmable and the onsite response vessel deployed sorbent boom to collect the recoverable oil portion. At approximately 12:30 cdt on 06jul22, divers inspected the plumber plugs at the second cut location and noted no discharge or leakage. At approximately 02:30 cdt on 07jul22, the divers removed the plumbers plug on the pipeline end of the second cut in order to install ported blind flange. A pollution dome was in place, but interfered with the rigging used to support the end connector during the connector installation. Therefore, the pollution dome was unable to contain all releases and additional 0.125 gallons of crude oil was released to the gulf of mexico that naturally dissipated. The total volume associated with the second subsea pipeline cut from the start of the cut until the permanent end connector and ported blind flange were installed was estimated to be 30.925 gallons. Plidco end connectors and blind flanges were installed over the square cut ends and the two pipe sections created by cutting activities have been recovered.
| Report Received Date | 2022-08-05 00:00:00 |
|---|---|
| Iyear | 2022 |
| Report Number | 20220171 |
| Supplemental Number | 37654 |
| 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 | 2022-07-06 14:45:00 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 28.93435 Google Maps OpenStreetMap |
| Location Longitude | -90.18049 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.73 |
| 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 | 2022-07-06 14:45:00 |
| System Part Involved | Offshore Pipeline, Including Riser And Riser Bend |
| On Off Shore | Offshore |
| Status When Identified | Idle |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Initial Responder Com Datetime | 2022-07-06 15:11:00 |
| On Site Datetime | 2022-07-06 14:45:00 |
| Confirmed Discovery Datetime | 2022-07-06 14:45:00 |
| Nrc Rpt Datetime | 2022-07-06 15:29:00 |
| Nrc Rpt Num | 1340760 NRC Report How to search |
| Additional Nrc Report Numbers | 1340762 |
| Ignite Ind | No |
| Upstream Action Taken | Operational Control |
| Upstream Oprtnl Cntrl Detail | This Release Was A Result Of De-Inventory Of An Idle Pipeline. |
| Downstream Action Taken | Operational Control |
| Downstream Oprtnl Cntrl Detail | This Release Was A Result Of De-Inventory Of An Idle Pipeline. |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | St130 |
| Segment Name | Psn3958 |
| Off Water Depth | 69 |
| Off Accident Origin | On The Outer Continental Shelf (Ocs) |
| Ocs Type | Ocs-Gulf Of Mexico |
| Off Ocs Area | St41 |
| Off Ocs Block | St41 |
| Off Area Accident Type | Below Water, Pipe On Or Above Seabed |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Puddle Weld Ind | No |
| Pipe Diameter | 12 |
| Pipe Wall Thickness | 0.5 |
| Pipe Smys | 35000 |
| Pipe Specification | Unknown |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Coal Tar |
| Coating Applied Ind | No |
| Installation Year | 1976 |
| Manufactured Year | 1976 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | This Release Was The Result Of De-Inventory Of An Idle Pipeline. |
| 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 | 0 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 2500 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Est Cost Other Details | Company Personnel And Contractors Were Already On Site To De-Inventory Line |
| Prpty | 2500 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 0 |
| Mop Psig | 1440 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 2017-03-23 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | No |
| Scada Functional Ind | No |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Cpm In Place Ind | No |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the accident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Damage By Operator Or Operator's Contractor Not Related To Excavation And Not Due To Motorized Vehicle/equipment Damage |
| Operation Type | Damage By Operator Or Operator's Contractor Not Related To Excavation And Not Due To Motorized Vehicle/equipment Damage |
| Related Inadequate Proc Ind | Yes |
| Category Type | Decommissioning |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | G****** S* P***** |
| Preparer Title | Senior Regulatory Coordinator |
| Preparer Email | P******@c******.com |
| Preparer Telephone | 8328544596 |
| Prepared Date | 2023-01-31 00:00:00 |
| Authorizer Name | G****** S* P***** |
| Authorizer Telephone | 8328544596 |
| Authorizer Title | Senior Regulatory Coordinator |
| Authorizer Email | P******@c******.com |
| Narrative | At approximately 1445 cdt on 06jul22, after making a second subsea pipeline cut to allow for flanges to be installed to support de-oiling the 12-inch south timbalier 130 pipeline, 30.8 gallons of crude oil escaped the pollution dome mitigation and was released to the gulf of mexico. Plumbers plugs were installed on the cut square ends to mitigate further release. The sheen was not scimmable and the onsite response vessel deployed sorbent boom to collect the recoverable oil portion. At approximately 12:30 cdt on 06jul22, divers inspected the plumber plugs at the second cut location and noted no discharge or leakage. At approximately 02:30 cdt on 07jul22, the divers removed the plumbers plug on the pipeline end of the second cut in order to install ported blind flange. A pollution dome was in place, but interfered with the rigging used to support the end connector during the connector installation. Therefore, the pollution dome was unable to contain all releases and additional 0.125 gallons of crude oil was released to the gulf of mexico that naturally dissipated. The total volume associated with the second subsea pipeline cut from the start of the cut until the permanent end connector and ported blind flange were installed was estimated to be 30.925 gallons. Plidco end connectors and blind flanges were installed over the square cut ends and the two pipe sections created by cutting activities have been recovered. |
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