Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2024-08-30 — TX
Operator
Panther Operating Company, Llc
Cause
Corrosion Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$45,000
Incident datetime
2024-08-30 00:00 UTC
Report number
Location
TX
Narrative
On 7/24/2024 at 08:18 panther operating company (poc) was contacted by louisiana oil spill coordinator office (losco) stating they were investigating an unknown sheen in vermilion bay. Poc operates a crude oil pipeline in vermilion bay, and losco asked if we had seen any anomalies. The pipeline has been idled and isolated since february 14, 2024poc mobilized third party contracted boats and aerial patrol (osro was es&h), which arrived on site on 7/24/24 at 12:15 and located the sheen but determined that there was no recoverable product on the water surface. Shortly after arriving on scene both the helicopter and boats had to leave the area due to severe thunderstorms in the bay. As a precaution on 7/24/24, operations drained the pipeline down at erath station to a pressure of 3 psi. Between 07/24/24'07/26/24, both boats and helicopter were deployed to the sheen location and observing a small light sheen each day (no recoverable product on the water surface), but each day had to leave shortly after arriving to the bay due to thunderstorms coming into the area. On 07/27/24 crews used side scan sonar and hydrograph on the suspected area and documented several drag scars along the bottom in the suspected leak location. On 07/29/24, a dive boat was mobilized and arrived on site to start investigating. When the divers started to jet the seabed, the pipe was buried at a depth of 8-10 ft. Between 7/29/24'7/31/24 divers were unable to identify an active leak, and no sheen had been spotted since 7/27/24. On 8/1/24 at 17:07 the release location was identified on the pipe. A call was placed to the nrc at 17:16, nrc# 1406611. A plidco clamp was installed on 8/2/24 on the leak location and pressure tested to operating pressure, after the successful test the pipeline pressure was bled down again to 3 psi. Between 7/24/24 and 8/1/24 approximately 6.4 barrels was release.
Detailed record list
Report Received Date
2024-08-30 00:00:00
Iyear
2024
Report Number
20240206
Supplemental Number
39968
Report Type
Supplemental Final
Operator Id
31994
Name
Panther Operating Company, Llc
Operator Street Address
Third Coast Midstream, Llc Po Box 1227
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77251
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
29.766755
Location Longitude
-91.900132
Commodity Released Type
Crude Oil
Unintentional Release Bbls
6.4
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Public
System Part Involved
Offshore Pipeline, Including Riser And Riser Bend
On Off Shore
Offshore
Status When Identified
Idle
Communication State Fed Ind
No
Nrc Rpt Num
1406611
Additional Nrc Report Numbers
1406915
Ignite Ind
No
Upstream Action Taken
Operational Control
Upstream Oprtnl Cntrl Detail
Pipeline Was Idle, No Action Was Taken Upstream
Downstream Action Taken
Operational Control
Downstream Oprtnl Cntrl Detail
Valve Was Opened To Relive Remaining Pressure On Pipeline
Num Pub Evacuated
0
Pipe Fac Name
Tiger Shoals
Segment Name
4_shark Island Platform To Erath Station
Off Water Depth
10
Off Accident Origin
In State Waters
Offshore State Abbreviation
La
Off Instate Area
Vermilion Bay
Off Instate Block
Vermilion Bay
Offshore County Name
Iberia
Off Area Accident Type
Below Water, Pipe Buried Or Jetted Below Seabed
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Puddle Weld Ind
No
Pipe Diameter
12.75
Pipe Wall Thickness
0.25
Pipe Smys
42000
Pipe Specification
Api 5l X 42
Pipe Seam Type
Erw - High Frequency
Pipe Manufacturer
Unknown
Pipe Coating Type
Other
Pipe Coating Details
Concrete
Coating Applied Ind
No
Installation Year
1984
Manufactured Year
1984
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
Yes
Ocean Seawater Ind
Yes
Amount Released
6.4
Rel Water Name
Vermilion Bay, Gulf Of Mexico
Could Be Hca
Yes
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
497
Est Cost Prop Damage
45000
Est Cost Emergency
365549
Est Cost Environmental
0
Est Cost Other
0
Prpty
411046
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
116
Mop Psig
1440
Mop Cfr Section
Subpart E Pressure Test �195.406(A)(3)
Maop Established Date
2009-02-18 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
Yes
Low Flow Ind
Yes
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
A review of the accident determined that there were no control room actions that contributed to the event
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
External Corrosion
Internal External
External Corrosion
Visual Exam Results
Localized Pitting
Galvanic Corrosion Ind
Yes
Field Exam Basis Ind
Yes
Underground Location
Yes
Under Cathodic Protection Ind
Yes
Cathodic Pro Start Year
1984
Shielding Evident
Yes
Cathodic Survey Type
No
Prior Damage
Yes
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Axial Recent Year
2018
Axial Rcnt Propul Method
Free Swimming
Axial Rcnt Attuned Detect
Metal Loss
Axial Rcnt Atnd Dtct Metal
High Resolution
Axial Previous Year
2013
Axial Prev Propul Method
Free Swimming
Axial Prev Attuned Detect
Metal Loss
Axial Prev Atnd Dtct Metal
Standard Resolution
Has Hydrtst Conduc Before Ind
Yes
Hydrtst Most Rcnt Year
2009
Hydrtst Most Rcnt Pressure
1440
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
N****** P********
Preparer Title
Manager Pipeline Regulatory Compliance
Preparer Email
N*********@t**********.com
Preparer Telephone
3462413368
Prepared Date
2024-09-04 00:00:00
Authorizer Name
N****** P********
Authorizer Telephone
3462413368
Authorizer Title
Manager Pipeline Regulatory Compliance
Authorizer Email
N*********@t**********.com
Narrative
On 7/24/2024 at 08:18 panther operating company (poc) was contacted by louisiana oil spill coordinator office (losco) stating they were investigating an unknown sheen in vermilion bay. Poc operates a crude oil pipeline in vermilion bay, and losco asked if we had seen any anomalies. The pipeline has been idled and isolated since february 14, 2024poc mobilized third party contracted boats and aerial patrol (osro was es&h), which arrived on site on 7/24/24 at 12:15 and located the sheen but determined that there was no recoverable product on the water surface. Shortly after arriving on scene both the helicopter and boats had to leave the area due to severe thunderstorms in the bay. As a precaution on 7/24/24, operations drained the pipeline down at erath station to a pressure of 3 psi. Between 07/24/24'07/26/24, both boats and helicopter were deployed to the sheen location and observing a small light sheen each day (no recoverable product on the water surface), but each day had to leave shortly after arriving to the bay due to thunderstorms coming into the area. On 07/27/24 crews used side scan sonar and hydrograph on the suspected area and documented several drag scars along the bottom in the suspected leak location. On 07/29/24, a dive boat was mobilized and arrived on site to start investigating. When the divers started to jet the seabed, the pipe was buried at a depth of 8-10 ft. Between 7/29/24'7/31/24 divers were unable to identify an active leak, and no sheen had been spotted since 7/27/24. On 8/1/24 at 17:07 the release location was identified on the pipe. A call was placed to the nrc at 17:16, nrc# 1406611. A plidco clamp was installed on 8/2/24 on the leak location and pressure tested to operating pressure, after the successful test the pipeline pressure was bled down again to 3 psi. Between 7/24/24 and 8/1/24 approximately 6.4 barrels was release.
| Report Received Date | 2024-08-30 00:00:00 |
|---|---|
| Iyear | 2024 |
| Report Number | 20240206 |
| Supplemental Number | 39968 |
| Report Type | Supplemental Final |
| Operator Id | 31994 PHMSA Enforcement |
| Name | Panther Operating Company, Llc |
| Operator Street Address | Third Coast Midstream, Llc Po Box 1227 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77251 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 29.766755 Google Maps OpenStreetMap |
| Location Longitude | -91.900132 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 6.4 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Public |
| System Part Involved | Offshore Pipeline, Including Riser And Riser Bend |
| On Off Shore | Offshore |
| Status When Identified | Idle |
| Communication State Fed Ind | No |
| Nrc Rpt Num | 1406611 NRC Report How to search |
| Additional Nrc Report Numbers | 1406915 |
| Ignite Ind | No |
| Upstream Action Taken | Operational Control |
| Upstream Oprtnl Cntrl Detail | Pipeline Was Idle, No Action Was Taken Upstream |
| Downstream Action Taken | Operational Control |
| Downstream Oprtnl Cntrl Detail | Valve Was Opened To Relive Remaining Pressure On Pipeline |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Tiger Shoals |
| Segment Name | 4_shark Island Platform To Erath Station |
| Off Water Depth | 10 |
| Off Accident Origin | In State Waters |
| Offshore State Abbreviation | La |
| Off Instate Area | Vermilion Bay |
| Off Instate Block | Vermilion Bay |
| Offshore County Name | Iberia |
| Off Area Accident Type | Below Water, Pipe Buried Or Jetted Below Seabed |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Puddle Weld Ind | No |
| Pipe Diameter | 12.75 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 42000 |
| Pipe Specification | Api 5l X 42 |
| Pipe Seam Type | Erw - High Frequency |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Other |
| Pipe Coating Details | Concrete |
| Coating Applied Ind | No |
| Installation Year | 1984 |
| Manufactured Year | 1984 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | Yes |
| Ocean Seawater Ind | Yes |
| Amount Released | 6.4 |
| Rel Water Name | Vermilion Bay, Gulf Of Mexico |
| Could Be Hca | Yes |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 497 |
| Est Cost Prop Damage | 45000 |
| Est Cost Emergency | 365549 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 411046 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 116 |
| Mop Psig | 1440 |
| Mop Cfr Section | Subpart E Pressure Test �195.406(A)(3) View CFR 49 §192 |
| Maop Established Date | 2009-02-18 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 | Yes |
| Low Flow Ind | Yes |
| 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 | A review of the accident determined that there were no control room actions that contributed to the event |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | External Corrosion |
| Internal External | External Corrosion |
| Visual Exam Results | Localized Pitting |
| Galvanic Corrosion Ind | Yes |
| Field Exam Basis Ind | Yes |
| Underground Location | Yes |
| Under Cathodic Protection Ind | Yes |
| Cathodic Pro Start Year | 1984 |
| Shielding Evident | Yes |
| Cathodic Survey Type | No |
| Prior Damage | Yes |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Axial Recent Year | 2018 |
| Axial Rcnt Propul Method | Free Swimming |
| Axial Rcnt Attuned Detect | Metal Loss |
| Axial Rcnt Atnd Dtct Metal | High Resolution |
| Axial Previous Year | 2013 |
| Axial Prev Propul Method | Free Swimming |
| Axial Prev Attuned Detect | Metal Loss |
| Axial Prev Atnd Dtct Metal | Standard Resolution |
| Has Hydrtst Conduc Before Ind | Yes |
| Hydrtst Most Rcnt Year | 2009 |
| Hydrtst Most Rcnt Pressure | 1440 |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | N****** P******** |
| Preparer Title | Manager Pipeline Regulatory Compliance |
| Preparer Email | N*********@t**********.com |
| Preparer Telephone | 3462413368 |
| Prepared Date | 2024-09-04 00:00:00 |
| Authorizer Name | N****** P******** |
| Authorizer Telephone | 3462413368 |
| Authorizer Title | Manager Pipeline Regulatory Compliance |
| Authorizer Email | N*********@t**********.com |
| Narrative | On 7/24/2024 at 08:18 panther operating company (poc) was contacted by louisiana oil spill coordinator office (losco) stating they were investigating an unknown sheen in vermilion bay. Poc operates a crude oil pipeline in vermilion bay, and losco asked if we had seen any anomalies. The pipeline has been idled and isolated since february 14, 2024poc mobilized third party contracted boats and aerial patrol (osro was es&h), which arrived on site on 7/24/24 at 12:15 and located the sheen but determined that there was no recoverable product on the water surface. Shortly after arriving on scene both the helicopter and boats had to leave the area due to severe thunderstorms in the bay. As a precaution on 7/24/24, operations drained the pipeline down at erath station to a pressure of 3 psi. Between 07/24/24'07/26/24, both boats and helicopter were deployed to the sheen location and observing a small light sheen each day (no recoverable product on the water surface), but each day had to leave shortly after arriving to the bay due to thunderstorms coming into the area. On 07/27/24 crews used side scan sonar and hydrograph on the suspected area and documented several drag scars along the bottom in the suspected leak location. On 07/29/24, a dive boat was mobilized and arrived on site to start investigating. When the divers started to jet the seabed, the pipe was buried at a depth of 8-10 ft. Between 7/29/24'7/31/24 divers were unable to identify an active leak, and no sheen had been spotted since 7/27/24. On 8/1/24 at 17:07 the release location was identified on the pipe. A call was placed to the nrc at 17:16, nrc# 1406611. A plidco clamp was installed on 8/2/24 on the leak location and pressure tested to operating pressure, after the successful test the pipeline pressure was bled down again to 3 psi. Between 7/24/24 and 8/1/24 approximately 6.4 barrels was release. |
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