Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2010-11-16 — TX
Operator
Shell Pipeline Co., L.p.
Cause
Corrosion Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$375,000
Incident datetime
2010-11-16 17:15
Report number
Location
TX
Narrative
Evidence of external corrosion at rupture point. Pipe is currently at a third party laboratory for full metallurgical testing to determine cause and contributing factors. Note: nrc - notification to the nrc was initially made at 16:46 11/16/2010. No information of location or volume was known. The nrc said to call back when more information is known and a report number will be given. Second call to the nrc was done at 18:10 11/16/2010 with the location of the release and a worst case scenario volume. Third call to the nrc was done at 12:20 11/18/2010 with the release volume. 3/23/2011 - metallurgical investigation of the ruptured pipe showed that the line suffered from local external corrosion and failed at the extrados of a field bend. Further inspection revealed that the longitudinal character of the corrosion features made the location susceptible to fatigue cracking as a result of operational pressure fluctuations, which led to the ultimate failure of the pipe. The pipeline has a coal tar corrosion coating which could be prone to shielding from the cathodic protection system in case of disbondment from the steel pipe. The level of corrosion did suggest shielding was happening at this particular location. 2/28/2013 - requested by PHMSA to re-submit without the intentional release volume. Removed the 526 bbls and adjusted the recovered volume from 1021 to 495 bbls. Requested by piyali talukdar, ops PHMSA usdot.
Detailed record list
Report Received Date
2010-12-09 00:00:00
Iyear
2010
Report Number
20100287
Supplemental Number
17283
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
2010-11-16 16:46:00
Location Latitude
30.06066
Location Longitude
-93.55077
Commodity Released Type
Crude Oil
Unintentional Release Bbls
1030
Recovered Bbls
495
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations)
Incident Identified Datetime
2010-11-16 17:15:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2010-11-16 16:46:00
Restart Datetime
2010-11-23 09:17:00
On Site Datetime
2010-11-16 17:15:00
Nrc Rpt Datetime
2010-11-16 16:46:00
Nrc Rpt Num
960033
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Automatic
Downstream Valve Type Ind
Manual
Pipe Fac Name
Erath To East Houston Crude
Segment Name
Sulphur Station To Pt. Neches 22"
Onshore State Abbreviation
La
Onshore Postal Code
70668
Onshore City Name
Vinton
Onshore County Name
Calcasieu
Designated Location
Milepost/valve Station
Designated Name
32.5
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
69
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
22
Pipe Wall Thickness
0.312
Pipe Smys
52000
Pipe Specification
X-52
Pipe Seam Type
Dsaw
Pipe Manufacturer
Kaiser Steel Corporation
Pipe Coating Type
Coal Tar
Installation Year
1952
Manufactured Year
1952
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Longitudinal
Rupture Width
4.7
Rupture Length
36.2
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Vegetation Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
No
Est Cost Oper Paid
25000
Est Cost Gas Released
40000
Est Cost Prop Damage
375000
Est Cost Emergency
524000
Est Cost Environmental
25000
Est Cost Other
0
Est Cost Other Details
8c. Repairs - Pipeline Cut Out And Replaced With New Pipe.
Prpty
989000
Accident Psig
700
Mop Psig
1050
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
109296
Internal Inspection Ind
Yes
Operation Complications 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
Yes
Cpm Conf Ind
Yes
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 controller's actins could not hav contributed to the release because, the controller and supervisor were monitoring the console preparing for a delivery location change when the pipeline rupture occurred. The controller recognized the release and responded appropriately.
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
Other Corrosion Ind
Yes
Corrosion Type Details
External Corrosion And Corrosion Fatigue Cracks Initiated Some Deeper Longitudinal Corrosion Features.
Metallurgical Basis Ind
Yes
Underground Location
Yes
Under Cathodic Protection Ind
Yes
Cathodic Pro Start Year
1952
Shielding Evident
Yes
Cathodic Survey Type
Yes
Cp Annual Survey Ind
Yes
Cp Annual Survey Year
2010
Prior Damage
No
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Geometry Deformation Ind
Yes
Axial Recent Year
2007
Geometry Recent Year
2007
Has Hydrtst Conduc Before Ind
Yes
Hydrtst Most Rcnt Year
1995
Hydrtst Most Rcnt Pressure
1327
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
R****** K*****
Preparer Title
Asset Integrity Specialist
Preparer Email
R*************@s****.com
Preparer Telephone
7132411064
Preparer Fax
7132412997
Prepared Date
2013-02-28 00:00:00
Authorizer Name
B**** S*******
Authorizer Telephone
7132413620
Authorizer Title
Integrity And Regulatory Services Manager
Authorizer Email
B*************@s****.com
Narrative
Evidence of external corrosion at rupture point. Pipe is currently at a third party laboratory for full metallurgical testing to determine cause and contributing factors. Note: nrc - notification to the nrc was initially made at 16:46 11/16/2010. No information of location or volume was known. The nrc said to call back when more information is known and a report number will be given. Second call to the nrc was done at 18:10 11/16/2010 with the location of the release and a worst case scenario volume. Third call to the nrc was done at 12:20 11/18/2010 with the release volume. 3/23/2011 - metallurgical investigation of the ruptured pipe showed that the line suffered from local external corrosion and failed at the extrados of a field bend. Further inspection revealed that the longitudinal character of the corrosion features made the location susceptible to fatigue cracking as a result of operational pressure fluctuations, which led to the ultimate failure of the pipe. The pipeline has a coal tar corrosion coating which could be prone to shielding from the cathodic protection system in case of disbondment from the steel pipe. The level of corrosion did suggest shielding was happening at this particular location. 2/28/2013 - requested by PHMSA to re-submit without the intentional release volume. Removed the 526 bbls and adjusted the recovered volume from 1021 to 495 bbls. Requested by piyali talukdar, ops PHMSA usdot.
| Report Received Date | 2010-12-09 00:00:00 |
|---|---|
| Iyear | 2010 |
| Report Number | 20100287 |
| Supplemental Number | 17283 |
| 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 | 2010-11-16 16:46:00 |
| Location Latitude | 30.06066 Google Maps OpenStreetMap |
| Location Longitude | -93.55077 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 1030 |
| Recovered Bbls | 495 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations) |
| Incident Identified Datetime | 2010-11-16 17:15:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2010-11-16 16:46:00 |
| Restart Datetime | 2010-11-23 09:17:00 |
| On Site Datetime | 2010-11-16 17:15:00 |
| Nrc Rpt Datetime | 2010-11-16 16:46:00 |
| Nrc Rpt Num | 960033 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Automatic |
| Downstream Valve Type Ind | Manual |
| Pipe Fac Name | Erath To East Houston Crude |
| Segment Name | Sulphur Station To Pt. Neches 22" |
| Onshore State Abbreviation | La |
| Onshore Postal Code | 70668 |
| Onshore City Name | Vinton |
| Onshore County Name | Calcasieu |
| Designated Location | Milepost/valve Station |
| Designated Name | 32.5 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 69 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 22 |
| Pipe Wall Thickness | 0.312 |
| Pipe Smys | 52000 |
| Pipe Specification | X-52 |
| Pipe Seam Type | Dsaw |
| Pipe Manufacturer | Kaiser Steel Corporation |
| Pipe Coating Type | Coal Tar |
| Installation Year | 1952 |
| Manufactured Year | 1952 |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Longitudinal |
| Rupture Width | 4.7 |
| Rupture Length | 36.2 |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Vegetation Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 25000 |
| Est Cost Gas Released | 40000 |
| Est Cost Prop Damage | 375000 |
| Est Cost Emergency | 524000 |
| Est Cost Environmental | 25000 |
| Est Cost Other | 0 |
| Est Cost Other Details | 8c. Repairs - Pipeline Cut Out And Replaced With New Pipe. |
| Prpty | 989000 |
| Accident Psig | 700 |
| Mop Psig | 1050 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 109296 |
| Internal Inspection Ind | Yes |
| Operation Complications 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 | Yes |
| Cpm Conf Ind | Yes |
| 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 controller's actins could not hav contributed to the release because, the controller and supervisor were monitoring the console preparing for a delivery location change when the pipeline rupture occurred. The controller recognized the release and responded appropriately. |
| 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 |
| Other Corrosion Ind | Yes |
| Corrosion Type Details | External Corrosion And Corrosion Fatigue Cracks Initiated Some Deeper Longitudinal Corrosion Features. |
| Metallurgical Basis Ind | Yes |
| Underground Location | Yes |
| Under Cathodic Protection Ind | Yes |
| Cathodic Pro Start Year | 1952 |
| Shielding Evident | Yes |
| Cathodic Survey Type | Yes |
| Cp Annual Survey Ind | Yes |
| Cp Annual Survey Year | 2010 |
| Prior Damage | No |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Geometry Deformation Ind | Yes |
| Axial Recent Year | 2007 |
| Geometry Recent Year | 2007 |
| Has Hydrtst Conduc Before Ind | Yes |
| Hydrtst Most Rcnt Year | 1995 |
| Hydrtst Most Rcnt Pressure | 1327 |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | R****** K***** |
| Preparer Title | Asset Integrity Specialist |
| Preparer Email | R*************@s****.com |
| Preparer Telephone | 7132411064 |
| Preparer Fax | 7132412997 |
| Prepared Date | 2013-02-28 00:00:00 |
| Authorizer Name | B**** S******* |
| Authorizer Telephone | 7132413620 |
| Authorizer Title | Integrity And Regulatory Services Manager |
| Authorizer Email | B*************@s****.com |
| Narrative | Evidence of external corrosion at rupture point. Pipe is currently at a third party laboratory for full metallurgical testing to determine cause and contributing factors. Note: nrc - notification to the nrc was initially made at 16:46 11/16/2010. No information of location or volume was known. The nrc said to call back when more information is known and a report number will be given. Second call to the nrc was done at 18:10 11/16/2010 with the location of the release and a worst case scenario volume. Third call to the nrc was done at 12:20 11/18/2010 with the release volume. 3/23/2011 - metallurgical investigation of the ruptured pipe showed that the line suffered from local external corrosion and failed at the extrados of a field bend. Further inspection revealed that the longitudinal character of the corrosion features made the location susceptible to fatigue cracking as a result of operational pressure fluctuations, which led to the ultimate failure of the pipe. The pipeline has a coal tar corrosion coating which could be prone to shielding from the cathodic protection system in case of disbondment from the steel pipe. The level of corrosion did suggest shielding was happening at this particular location. 2/28/2013 - requested by PHMSA to re-submit without the intentional release volume. Removed the 526 bbls and adjusted the recovered volume from 1021 to 495 bbls. Requested by piyali talukdar, ops PHMSA usdot. |
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