Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-05-25 — TX
Operator
Shell Pipeline Co., L.p.
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$1,000,000
Incident datetime
2015-05-25 07:33
Report number
Location
TX
Narrative
The control center commanded the pump unit to shut down during hydraulic rate modifications on the pipeline. The control center received alarms of the units continuing to run. The control center shut down the pipeline system and contacted field personnel to investigate. Failure of the esd system rendered the control equipment non functional due to loss of 48 volt power system and the back up energy storage device failed to open power contact to the motor starter of the pump units, which would have shut down the pump motor. Barriers have been added to the 48 vdc system, revised the plc logic, added fail safe features, will use the sf6 sub-station breaker as a secondary control barrier. Pipeline re-started with the pump station bypassed until repairs were completed. The pump station was restarted on june 17th with the barriers installed.
Detailed record list
Report Received Date
2015-06-24 00:00:00
Iyear
2015
Report Number
20150229
Supplemental Number
20618
Report Type
Supplemental Final
Operator Id
31174
Name
Shell Pipeline Co., L.p.
Operator Street Address
150 North Dairy Ashford Road Wck Bldg. A
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77079
Local Datetime
2015-05-25 07:33:00
Location Latitude
37.721661
Location Longitude
-121.54831
Commodity Released Type
Crude Oil
Unintentional Release Bbls
7.86
Recovered Bbls
1.66
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Controller
Operator Type
Operator Employee
Incident Identified Datetime
2015-05-25 07:33:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-05-25 07:39:00
Restart Datetime
2015-05-25 21:30:00
On Site Datetime
2015-05-25 09:00:00
Nrc Rpt Datetime
2015-05-25 09:02:00
Nrc Rpt Num
1117471
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Tracy Pump Station
Segment Name
North 20" Carneras To Coalinga
Onshore State Abbreviation
Ca
Onshore Postal Code
95377
Onshore City Name
Tracy
Onshore County Name
San Joaquin
Designated Location
Milepost/valve Station
Designated Name
Pump Sta.
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Pump
Installation Year
1969
Material Involved
Material Other Than Carbon Steel
Material Details
Esd Equipment
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
Usa Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
340
Est Cost Prop Damage
1000000
Est Cost Emergency
5000
Est Cost Environmental
0
Est Cost Other
0
Prpty
1005340
Accident Psig
874
Mop Psig
912
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
Yes
Scada Conf Ind
Yes
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
No
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest Schedule Ind
Yes
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Esd System Failure Ind
Yes
Additional Electricity Ind
Yes
Preparer Name
R****** K*****
Preparer Title
Regulatory Specialist
Preparer Email
R*************@s****.com
Preparer Telephone
713 241 1064
Preparer Fax
713 241 8498
Prepared Date
2015-07-24 00:00:00
Authorizer Name
D****** P****
Authorizer Telephone
713 241 2035
Authorizer Title
Integrity Regulatory Srvc Manager
Authorizer Email
D************@s****.com
Narrative
The control center commanded the pump unit to shut down during hydraulic rate modifications on the pipeline. The control center received alarms of the units continuing to run. The control center shut down the pipeline system and contacted field personnel to investigate. Failure of the esd system rendered the control equipment non functional due to loss of 48 volt power system and the back up energy storage device failed to open power contact to the motor starter of the pump units, which would have shut down the pump motor. Barriers have been added to the 48 vdc system, revised the plc logic, added fail safe features, will use the sf6 sub-station breaker as a secondary control barrier. Pipeline re-started with the pump station bypassed until repairs were completed. The pump station was restarted on june 17th with the barriers installed.
| Report Received Date | 2015-06-24 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150229 |
| Supplemental Number | 20618 |
| Report Type | Supplemental Final |
| Operator Id | 31174 PHMSA Enforcement |
| Name | Shell Pipeline Co., L.p. |
| Operator Street Address | 150 North Dairy Ashford Road Wck Bldg. A |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77079 |
| Local Datetime | 2015-05-25 07:33:00 |
| Location Latitude | 37.721661 Google Maps OpenStreetMap |
| Location Longitude | -121.54831 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 7.86 |
| Recovered Bbls | 1.66 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Controller |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2015-05-25 07:33:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-05-25 07:39:00 |
| Restart Datetime | 2015-05-25 21:30:00 |
| On Site Datetime | 2015-05-25 09:00:00 |
| Nrc Rpt Datetime | 2015-05-25 09:02:00 |
| Nrc Rpt Num | 1117471 NRC Report How to search |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Tracy Pump Station |
| Segment Name | North 20" Carneras To Coalinga |
| Onshore State Abbreviation | Ca |
| Onshore Postal Code | 95377 |
| Onshore City Name | Tracy |
| Onshore County Name | San Joaquin |
| Designated Location | Milepost/valve Station |
| Designated Name | Pump Sta. |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Pump |
| Installation Year | 1969 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Esd Equipment |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| Usa Ecological Ind | Yes |
| Usa Ecological Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 340 |
| Est Cost Prop Damage | 1000000 |
| Est Cost Emergency | 5000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 1005340 |
| Accident Psig | 874 |
| Mop Psig | 912 |
| 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 | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf Ind | No |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest Schedule Ind | Yes |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Esd System Failure Ind | Yes |
| Additional Electricity Ind | Yes |
| Preparer Name | R****** K***** |
| Preparer Title | Regulatory Specialist |
| Preparer Email | R*************@s****.com |
| Preparer Telephone | 713 241 1064 |
| Preparer Fax | 713 241 8498 |
| Prepared Date | 2015-07-24 00:00:00 |
| Authorizer Name | D****** P**** |
| Authorizer Telephone | 713 241 2035 |
| Authorizer Title | Integrity Regulatory Srvc Manager |
| Authorizer Email | D************@s****.com |
| Narrative | The control center commanded the pump unit to shut down during hydraulic rate modifications on the pipeline. The control center received alarms of the units continuing to run. The control center shut down the pipeline system and contacted field personnel to investigate. Failure of the esd system rendered the control equipment non functional due to loss of 48 volt power system and the back up energy storage device failed to open power contact to the motor starter of the pump units, which would have shut down the pump motor. Barriers have been added to the 48 vdc system, revised the plc logic, added fail safe features, will use the sf6 sub-station breaker as a secondary control barrier. Pipeline re-started with the pump station bypassed until repairs were completed. The pump station was restarted on june 17th with the barriers installed. |
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