Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2011-02-21 — TX
Operator
Enterprise Crude Pipeline Llc
Cause
Material Failure Of Pipe Or Weld
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$43,438
Incident datetime
2011-02-21 13:30
Report number
Location
TX
Narrative
Cushing east operator was in the process of doing a line wash over to the cushing west station. East operator started up the pump and 15 minutes later discovered a large leak in the manifold. East operator shut the line down and contacted west operator that he had a leak. Crude oil migrated to retention pond but fully contained on the company's property. East operator (employee #1) contacted the west operator (employee #2) to let him know he was going to do a line wash on the green line from the east station to the west station. Employee #2 lined up his station to receive the line wash on the green line. The employee #1 incorrectly lined up his station to deliver down the shell line. Employee #1 started up the pump and contacted the west operator to see if he had started receiving oil. The employee #2 advised him no and at that time employee #1 looked at his security monitor and observed a large leak in the manifold. Employee #1 immediately started shutting everything down and closing valves. When the leak was dug out it was discovered the line that was leaking was the 8 inch shell line and not the 22 inch green line that the delivery should have been going to. During the investigation it was determined that the high pressure shut down did not shut the pump down nor did the station indicate any high pressure alarms during the 15 minute time span that the pump was running. In looking at the data at the time of the incident the pressure on the line showed to reach 137 psi. The high pressure shut down on the pump is 271 psi. The pump pressure shutdown was tested and found to be working correctly. Also the manifold was not labeled due to recently being painted. Operations was in the process of re-labeling the manifold. The green line valve and the shell line valve are side by side, but the green line valve is a 10 inch mov and the shell line is a 6 inch manual operator valve. There was not a procedure for a line wash from the east to the west. After excavation it was discovered that the line had a split down the seam of the pipe approximately 49 inches in the 3 o'clock position. The pipe will be cut out and sent for analysis. Update 1/18/2012 - updated final cost. Lab report on pipe and incident report concerning this leak was forwarded to PHMSA on 6/20/2011. Part g5, part 2 - other - the cause of failure was overheating of the edges of the skelp during the lap welding process causing gain growth and intergranular cracks. The service conditions of the pipe caused the cracks to connect over time and eventually reduce the effective wall thickness of the pipe to the point where it was unable to withstand the hoop stress.
Detailed record list
Report Received Date
2011-06-27 00:00:00
Iyear
2011
Report Number
20110206
Supplemental Number
19263
Report Type
Supplemental Final
Operator Id
30829
Name
Enterprise Crude Pipeline Llc
Operator Street Address
1100 Louisiana Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2011-02-21 13:30:00
Location Latitude
35.93964
Location Longitude
-96.748064
Commodity Released Type
Crude Oil
Unintentional Release Bbls
600
Intentional Release Bbls
0
Recovered Bbls
593
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2011-02-21 13:30:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
This Involved The Manifold
On Site Datetime
2011-02-21 13:35:00
Nrc Rpt Datetime
2011-02-21 16:02:00
Nrc Rpt Num
968257
Ignite Ind
No
Explode Ind
No
Pipe Fac Name
Cushing East Facility
Segment Name
Manifold
Onshore State Abbreviation
Ok
Onshore Postal Code
74023
Onshore City Name
Cushing
Onshore County Name
Lincoln
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
16
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
8.625
Pipe Wall Thickness
0.312
Pipe Smys
24000
Pipe Specification
Api 5l
Pipe Seam Type
Lap Welded
Pipe Manufacturer
Unknown
Pipe Coating Type
None
Manufactured Year
1950
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Longitudinal
Rupture Width
0.3
Rupture Length
52
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
320
Est Cost Prop Damage
43438
Est Cost Emergency
1000
Est Cost Environmental
107692
Est Cost Other
7924
Est Cost Other Details
Lab Analysis
Prpty
160374
Accident Psig
137
Mop Psig
275
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place 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)
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
No
Num Employees Tested
2
Num Employees Failed
0
Cause
Material Failure Of Pipe Or Weld
Cause Details
Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field)
Metallurgical Ind
Yes
Failure Type
Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field)
Other Factor
Yes
Other Factor Details
See Note In Narrative.
Additional Crack Ind
Yes
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
B****** D**
Preparer Title
Pipeline Compliance Analyst
Preparer Email
B****@e****.com
Preparer Telephone
713-381-4517
Preparer Fax
713-381-6811
Prepared Date
2014-04-16 00:00:00
Authorizer Name
N*** B******
Authorizer Telephone
713-381-3536
Authorizer Title
Pipeline Compliance Specialist
Authorizer Email
W********@e****.com
Narrative
Cushing east operator was in the process of doing a line wash over to the cushing west station. East operator started up the pump and 15 minutes later discovered a large leak in the manifold. East operator shut the line down and contacted west operator that he had a leak. Crude oil migrated to retention pond but fully contained on the company's property. East operator (employee #1) contacted the west operator (employee #2) to let him know he was going to do a line wash on the green line from the east station to the west station. Employee #2 lined up his station to receive the line wash on the green line. The employee #1 incorrectly lined up his station to deliver down the shell line. Employee #1 started up the pump and contacted the west operator to see if he had started receiving oil. The employee #2 advised him no and at that time employee #1 looked at his security monitor and observed a large leak in the manifold. Employee #1 immediately started shutting everything down and closing valves. When the leak was dug out it was discovered the line that was leaking was the 8 inch shell line and not the 22 inch green line that the delivery should have been going to. During the investigation it was determined that the high pressure shut down did not shut the pump down nor did the station indicate any high pressure alarms during the 15 minute time span that the pump was running. In looking at the data at the time of the incident the pressure on the line showed to reach 137 psi. The high pressure shut down on the pump is 271 psi. The pump pressure shutdown was tested and found to be working correctly. Also the manifold was not labeled due to recently being painted. Operations was in the process of re-labeling the manifold. The green line valve and the shell line valve are side by side, but the green line valve is a 10 inch mov and the shell line is a 6 inch manual operator valve. There was not a procedure for a line wash from the east to the west. After excavation it was discovered that the line had a split down the seam of the pipe approximately 49 inches in the 3 o'clock position. The pipe will be cut out and sent for analysis. Update 1/18/2012 - updated final cost. Lab report on pipe and incident report concerning this leak was forwarded to PHMSA on 6/20/2011. Part g5, part 2 - other - the cause of failure was overheating of the edges of the skelp during the lap welding process causing gain growth and intergranular cracks. The service conditions of the pipe caused the cracks to connect over time and eventually reduce the effective wall thickness of the pipe to the point where it was unable to withstand the hoop stress.
| Report Received Date | 2011-06-27 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110206 |
| Supplemental Number | 19263 |
| Report Type | Supplemental Final |
| Operator Id | 30829 PHMSA Enforcement |
| Name | Enterprise Crude Pipeline Llc |
| Operator Street Address | 1100 Louisiana Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2011-02-21 13:30:00 |
| Location Latitude | 35.93964 Google Maps OpenStreetMap |
| Location Longitude | -96.748064 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 600 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 593 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2011-02-21 13:30:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | This Involved The Manifold |
| On Site Datetime | 2011-02-21 13:35:00 |
| Nrc Rpt Datetime | 2011-02-21 16:02:00 |
| Nrc Rpt Num | 968257 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Pipe Fac Name | Cushing East Facility |
| Segment Name | Manifold |
| Onshore State Abbreviation | Ok |
| Onshore Postal Code | 74023 |
| Onshore City Name | Cushing |
| Onshore County Name | Lincoln |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 16 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 8.625 |
| Pipe Wall Thickness | 0.312 |
| Pipe Smys | 24000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Lap Welded |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | None |
| Manufactured Year | 1950 |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Longitudinal |
| Rupture Width | 0.3 |
| Rupture Length | 52 |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 320 |
| Est Cost Prop Damage | 43438 |
| Est Cost Emergency | 1000 |
| Est Cost Environmental | 107692 |
| Est Cost Other | 7924 |
| Est Cost Other Details | Lab Analysis |
| Prpty | 160374 |
| Accident Psig | 137 |
| Mop Psig | 275 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place 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) |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | No |
| Num Employees Tested | 2 |
| Num Employees Failed | 0 |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field) |
| Metallurgical Ind | Yes |
| Failure Type | Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field) |
| Other Factor | Yes |
| Other Factor Details | See Note In Narrative. |
| Additional Crack Ind | Yes |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | B****** D** |
| Preparer Title | Pipeline Compliance Analyst |
| Preparer Email | B****@e****.com |
| Preparer Telephone | 713-381-4517 |
| Preparer Fax | 713-381-6811 |
| Prepared Date | 2014-04-16 00:00:00 |
| Authorizer Name | N*** B****** |
| Authorizer Telephone | 713-381-3536 |
| Authorizer Title | Pipeline Compliance Specialist |
| Authorizer Email | W********@e****.com |
| Narrative | Cushing east operator was in the process of doing a line wash over to the cushing west station. East operator started up the pump and 15 minutes later discovered a large leak in the manifold. East operator shut the line down and contacted west operator that he had a leak. Crude oil migrated to retention pond but fully contained on the company's property. East operator (employee #1) contacted the west operator (employee #2) to let him know he was going to do a line wash on the green line from the east station to the west station. Employee #2 lined up his station to receive the line wash on the green line. The employee #1 incorrectly lined up his station to deliver down the shell line. Employee #1 started up the pump and contacted the west operator to see if he had started receiving oil. The employee #2 advised him no and at that time employee #1 looked at his security monitor and observed a large leak in the manifold. Employee #1 immediately started shutting everything down and closing valves. When the leak was dug out it was discovered the line that was leaking was the 8 inch shell line and not the 22 inch green line that the delivery should have been going to. During the investigation it was determined that the high pressure shut down did not shut the pump down nor did the station indicate any high pressure alarms during the 15 minute time span that the pump was running. In looking at the data at the time of the incident the pressure on the line showed to reach 137 psi. The high pressure shut down on the pump is 271 psi. The pump pressure shutdown was tested and found to be working correctly. Also the manifold was not labeled due to recently being painted. Operations was in the process of re-labeling the manifold. The green line valve and the shell line valve are side by side, but the green line valve is a 10 inch mov and the shell line is a 6 inch manual operator valve. There was not a procedure for a line wash from the east to the west. After excavation it was discovered that the line had a split down the seam of the pipe approximately 49 inches in the 3 o'clock position. The pipe will be cut out and sent for analysis. Update 1/18/2012 - updated final cost. Lab report on pipe and incident report concerning this leak was forwarded to PHMSA on 6/20/2011. Part g5, part 2 - other - the cause of failure was overheating of the edges of the skelp during the lap welding process causing gain growth and intergranular cracks. The service conditions of the pipe caused the cracks to connect over time and eventually reduce the effective wall thickness of the pipe to the point where it was unable to withstand the hoop stress. |
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