Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2021-08-20 — LA
Operator
Crescent Midstream, Llc
Cause
Incorrect Operation
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2021-08-20 11:40
Report number
Location
LA
Narrative
Crescent was conducting riser maintenance on ei-259a. A water filtration unit was placed on the deck to filter the hydrostatic test water. The filtration crew connected the system to crescent's pipeline via a one inch valve. The valve was left in the open position. The section of pipe was active, but not flowing at the time. Shortly after the pipeline came online, crude oil was directed to the filtration inlet tank through the one inch valve. Crude oil over flowed the inlet tank on the temporary filtration unit resulting in a release of crude oil.
Detailed record list
Report Received Date
2021-09-20 00:00:00
Iyear
2021
Report Number
20210265
Supplemental Number
35754
Report Type
Original Final
Operator Id
39084
Name
Crescent Midstream, Llc
Operator Street Address
263 Trinity Lane
Operator City Name
Gray
Operator State Abbreviation
LA
Operator Postal Code
70359
Local Datetime
2021-08-20 12:24:00
Location Latitude
28.453569
Location Longitude
-91.456368
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.34
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
2021-08-20 11:40:00
System Part Involved
Offshore Platform/deepwater Port, Including Platform-Mounted Equipment And Piping
On Off Shore
Offshore
Shutdown Due Accident Ind
No
Shutdown Explain
Incorrect Operation, 1" Valve Was Secured (Closed)
On Site Datetime
2021-08-20 11:45:00
Nrc Rpt Datetime
2021-08-20 12:24:00
Nrc Rpt Num
1314243
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Off Water Depth
100
Off Accident Origin
On The Outer Continental Shelf (Ocs)
Off Ocs Area
Eugene Island
Off Ocs Block
259
Off Area Accident Type
Platform
Pipe Facility Type
Interstate
Item Involved
Other
Item Involved Details
Temporary Filtration System
Installation Year
Unknown
Material Involved
Carbon Steel
Release Type
Overfill Or Overflow
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
Yes
Ocean Seawater Ind
Yes
Amount Released
0.34
Rel Water Name
Gulf Of Mexico
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
25
Est Cost Prop Damage
0
Est Cost Emergency
200
Est Cost Environmental
0
Est Cost Other
0
Prpty
225
Accident Psig
30
Mop Psig
1440
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
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 release was a result of incorrect operation of a one inch ball valve during pipeline maintenance activity.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Tank, Vessel, Or Sump/separator Allowed Or Caused To Overfill Or Overflow
Operation Type
Tank, Vessel, Or Sump/separator Allowed Or Caused To Overfill Or Overflow
Overflow Other Ind
Valve Misalignment
Related Failure Follow Ind
Yes
Category Type
Other Maintenance
Operator Qualification Ind
Yes
Qualified Individuals
No, But They Were Performing The Task(S) Under The Direction And Observation Of A Qualified Individual
Preparer Name
D***** P****
Preparer Title
Safety Regulatory Compliance Supervisor
Preparer Email
D*****@c**********.com
Prepared Date
2021-09-20 00:00:00
Authorizer Name
D***** S****
Authorizer Telephone
985-772-3546
Authorizer Title
Vp Operations
Authorizer Email
D******@c**********.com
Narrative
Crescent was conducting riser maintenance on ei-259a. A water filtration unit was placed on the deck to filter the hydrostatic test water. The filtration crew connected the system to crescent's pipeline via a one inch valve. The valve was left in the open position. The section of pipe was active, but not flowing at the time. Shortly after the pipeline came online, crude oil was directed to the filtration inlet tank through the one inch valve. Crude oil over flowed the inlet tank on the temporary filtration unit resulting in a release of crude oil.
| Report Received Date | 2021-09-20 00:00:00 |
|---|---|
| Iyear | 2021 |
| Report Number | 20210265 |
| Supplemental Number | 35754 |
| Report Type | Original Final |
| Operator Id | 39084 PHMSA Enforcement |
| Name | Crescent Midstream, Llc |
| Operator Street Address | 263 Trinity Lane |
| Operator City Name | Gray |
| Operator State Abbreviation | LA |
| Operator Postal Code | 70359 |
| Local Datetime | 2021-08-20 12:24:00 |
| Location Latitude | 28.453569 Google Maps OpenStreetMap |
| Location Longitude | -91.456368 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.34 |
| 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 | 2021-08-20 11:40:00 |
| System Part Involved | Offshore Platform/deepwater Port, Including Platform-Mounted Equipment And Piping |
| On Off Shore | Offshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Incorrect Operation, 1" Valve Was Secured (Closed) |
| On Site Datetime | 2021-08-20 11:45:00 |
| Nrc Rpt Datetime | 2021-08-20 12:24:00 |
| Nrc Rpt Num | 1314243 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Off Water Depth | 100 |
| Off Accident Origin | On The Outer Continental Shelf (Ocs) |
| Off Ocs Area | Eugene Island |
| Off Ocs Block | 259 |
| Off Area Accident Type | Platform |
| Pipe Facility Type | Interstate |
| Item Involved | Other |
| Item Involved Details | Temporary Filtration System |
| Installation Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Overfill Or Overflow |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | Yes |
| Ocean Seawater Ind | Yes |
| Amount Released | 0.34 |
| Rel Water Name | Gulf Of Mexico |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 25 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 200 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 225 |
| Accident Psig | 30 |
| Mop Psig | 1440 |
| 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 | 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 release was a result of incorrect operation of a one inch ball valve during pipeline maintenance activity. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Tank, Vessel, Or Sump/separator Allowed Or Caused To Overfill Or Overflow |
| Operation Type | Tank, Vessel, Or Sump/separator Allowed Or Caused To Overfill Or Overflow |
| Overflow Other Ind | Valve Misalignment |
| Related Failure Follow Ind | Yes |
| Category Type | Other Maintenance |
| Operator Qualification Ind | Yes |
| Qualified Individuals | No, But They Were Performing The Task(S) Under The Direction And Observation Of A Qualified Individual |
| Preparer Name | D***** P**** |
| Preparer Title | Safety Regulatory Compliance Supervisor |
| Preparer Email | D*****@c**********.com |
| Prepared Date | 2021-09-20 00:00:00 |
| Authorizer Name | D***** S**** |
| Authorizer Telephone | 985-772-3546 |
| Authorizer Title | Vp Operations |
| Authorizer Email | D******@c**********.com |
| Narrative | Crescent was conducting riser maintenance on ei-259a. A water filtration unit was placed on the deck to filter the hydrostatic test water. The filtration crew connected the system to crescent's pipeline via a one inch valve. The valve was left in the open position. The section of pipe was active, but not flowing at the time. Shortly after the pipeline came online, crude oil was directed to the filtration inlet tank through the one inch valve. Crude oil over flowed the inlet tank on the temporary filtration unit resulting in a release of crude oil. |
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