Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2012-11-03 — TX
Operator
Exxonmobil Pipeline Co
Cause
Corrosion Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$200,000
Incident datetime
2012-11-03 08:45
Report number
Location
TX
Narrative
Incident description on saturday, november 3, an oil sheen was reported by the smi 69b (third-party) platform operator. 4.7 gal. (o.112 bbls) of crude oil was released to water from the interface between a pipeline platform riser support clamp and the empco 10 in. Pipeline. The subject pipe clamp is one of eight riser clamps that secure the pipeline riser to the platform and one of two above the water line. The subject clamp is approximately ~15 ft. Above the water line and below the main platform deck. Corrective actions upon release discovery, the smi 69b platform operator executed an emergency shut down of the empco pipeline. The empco occ immediately blocked-in the affected segments. Agency and empco up-line notifications were completed. The empco designated oil spill response organization (osro) was deployed as a precaution. The uscg was updated and took no exception to the response. The repair strategy is in-progress and includes replacement of the failed long radius pipe section. Investigation the release failure mechanism has been determined to be through-wall external corrosion between the clamp and pipeline. The failed section has been sent to lab for metallurgical analysis.
Detailed record list
Report Received Date
2012-11-30 00:00:00
Iyear
2012
Report Number
20120340
Supplemental Number
18314
Report Type
Supplemental Final
Operator Id
4906
Name
Exxonmobil Pipeline Co
Operator Street Address
22777 Springwoods Village Parkway E2.2b-Emp
Operator City Name
Spring
Operator State Abbreviation
TX
Operator Postal Code
77389
Local Datetime
2012-11-03 08:45:00
Location Latitude
28.618056
Location Longitude
-92.069167
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.11
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Other
Accident Details
Release Was Discovered By The Platform Operator (Third Party)
Incident Identified Datetime
2012-11-03 08:45:00
System Part Involved
Offshore Pipeline, Including Riser And Riser Bend
On Off Shore
Offshore
On Site Datetime
2012-11-03 08:45:00
Nrc Rpt Datetime
2012-11-03 09:55:00
Nrc Rpt Num
1029448
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Automatic
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Off Water Depth
150
Off Accident Origin
On The Outer Continental Shelf (Ocs)
Off Ocs Area
South Marsh Island
Off Ocs Block
69
Off Area Accident Type
Portion Of Riser Outside Of Splash Zone, Including Riser Bend
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
10
Pipe Wall Thickness
0.5
Pipe Smys
35000
Pipe Specification
Api 5l
Pipe Seam Type
Seamless
Pipe Manufacturer
Us Steel
Pipe Coating Type
Paint
Installation Year
1972
Manufactured Year
1981
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
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
5
Est Cost Prop Damage
200000
Est Cost Emergency
30000
Est Cost Environmental
0
Est Cost Other
0
Prpty
230005
Accident Psig
450
Mop Psig
1450
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
423667
Internal Inspection Ind
Yes
Operation Complications 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)
Investigation Status Details
Exxonmobil pipeline determined that the release was not caused by the "controler"
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
External Corrosion
Internal External
External Corrosion
Visual Exam Results
General Corrosion
Atmosphere Corrosion Ind
Yes
Field Exam Basis Ind
Yes
Underground Location
No
Externally Coated
Yes
Prior Damage
Yes
Collected Data Ind
Yes
Other Recent Year
2007
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
Yes, But The Point Of The Accident Was Not Identified As A Dig Site
Non Destructive Exam Ind
No
Preparer Name
K***** L* Y****
Preparer Title
Pipeline Safety Compliance Advisor
Preparer Email
K*************@e*********.com
Preparer Telephone
225-324-3055
Prepared Date
2013-07-29 00:00:00
Authorizer Name
M*** D W******
Authorizer Telephone
713-656-0227
Authorizer Title
She Manager
Authorizer Email
M*************@e*********.com
Narrative
Incident description on saturday, november 3, an oil sheen was reported by the smi 69b (third-party) platform operator. 4.7 gal. (o.112 bbls) of crude oil was released to water from the interface between a pipeline platform riser support clamp and the empco 10 in. Pipeline. The subject pipe clamp is one of eight riser clamps that secure the pipeline riser to the platform and one of two above the water line. The subject clamp is approximately ~15 ft. Above the water line and below the main platform deck. Corrective actions upon release discovery, the smi 69b platform operator executed an emergency shut down of the empco pipeline. The empco occ immediately blocked-in the affected segments. Agency and empco up-line notifications were completed. The empco designated oil spill response organization (osro) was deployed as a precaution. The uscg was updated and took no exception to the response. The repair strategy is in-progress and includes replacement of the failed long radius pipe section. Investigation the release failure mechanism has been determined to be through-wall external corrosion between the clamp and pipeline. The failed section has been sent to lab for metallurgical analysis.
| Report Received Date | 2012-11-30 00:00:00 |
|---|---|
| Iyear | 2012 |
| Report Number | 20120340 |
| Supplemental Number | 18314 |
| Report Type | Supplemental Final |
| Operator Id | 4906 PHMSA Enforcement |
| Name | Exxonmobil Pipeline Co |
| Operator Street Address | 22777 Springwoods Village Parkway E2.2b-Emp |
| Operator City Name | Spring |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77389 |
| Local Datetime | 2012-11-03 08:45:00 |
| Location Latitude | 28.618056 Google Maps OpenStreetMap |
| Location Longitude | -92.069167 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.11 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Other |
| Accident Details | Release Was Discovered By The Platform Operator (Third Party) |
| Incident Identified Datetime | 2012-11-03 08:45:00 |
| System Part Involved | Offshore Pipeline, Including Riser And Riser Bend |
| On Off Shore | Offshore |
| On Site Datetime | 2012-11-03 08:45:00 |
| Nrc Rpt Datetime | 2012-11-03 09:55:00 |
| Nrc Rpt Num | 1029448 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Automatic |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Off Water Depth | 150 |
| Off Accident Origin | On The Outer Continental Shelf (Ocs) |
| Off Ocs Area | South Marsh Island |
| Off Ocs Block | 69 |
| Off Area Accident Type | Portion Of Riser Outside Of Splash Zone, Including Riser Bend |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 10 |
| Pipe Wall Thickness | 0.5 |
| Pipe Smys | 35000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | Us Steel |
| Pipe Coating Type | Paint |
| Installation Year | 1972 |
| Manufactured Year | 1981 |
| 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 | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 5 |
| Est Cost Prop Damage | 200000 |
| Est Cost Emergency | 30000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 230005 |
| Accident Psig | 450 |
| Mop Psig | 1450 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 423667 |
| Internal Inspection Ind | Yes |
| Operation Complications 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) |
| Investigation Status Details | Exxonmobil pipeline determined that the release was not caused by the "controler" |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | External Corrosion |
| Internal External | External Corrosion |
| Visual Exam Results | General Corrosion |
| Atmosphere Corrosion Ind | Yes |
| Field Exam Basis Ind | Yes |
| Underground Location | No |
| Externally Coated | Yes |
| Prior Damage | Yes |
| Collected Data Ind | Yes |
| Other Recent Year | 2007 |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | Yes, But The Point Of The Accident Was Not Identified As A Dig Site |
| Non Destructive Exam Ind | No |
| Preparer Name | K***** L* Y**** |
| Preparer Title | Pipeline Safety Compliance Advisor |
| Preparer Email | K*************@e*********.com |
| Preparer Telephone | 225-324-3055 |
| Prepared Date | 2013-07-29 00:00:00 |
| Authorizer Name | M*** D W****** |
| Authorizer Telephone | 713-656-0227 |
| Authorizer Title | She Manager |
| Authorizer Email | M*************@e*********.com |
| Narrative | Incident description on saturday, november 3, an oil sheen was reported by the smi 69b (third-party) platform operator. 4.7 gal. (o.112 bbls) of crude oil was released to water from the interface between a pipeline platform riser support clamp and the empco 10 in. Pipeline. The subject pipe clamp is one of eight riser clamps that secure the pipeline riser to the platform and one of two above the water line. The subject clamp is approximately ~15 ft. Above the water line and below the main platform deck. Corrective actions upon release discovery, the smi 69b platform operator executed an emergency shut down of the empco pipeline. The empco occ immediately blocked-in the affected segments. Agency and empco up-line notifications were completed. The empco designated oil spill response organization (osro) was deployed as a precaution. The uscg was updated and took no exception to the response. The repair strategy is in-progress and includes replacement of the failed long radius pipe section. Investigation the release failure mechanism has been determined to be through-wall external corrosion between the clamp and pipeline. The failed section has been sent to lab for metallurgical analysis. |
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