Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2014-09-23 — OK
Operator
Oneok Westex Transmission, Llc
Cause
Corrosion Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$121,863
Incident datetime
2014-09-23 10:44
Report number
Location
OK
Narrative
At approximately 1044 hours on september 23, 2014, oneok westex transmission (owt) was notified by the public of a possible gas leak near a pecos river crossing on the 12 inch line 4001-000 about 14 miles east of pecos, tx in a class I area. Owt personnel arrived on site at approximately 1130 hours and observed gas bubbling up in water standing over the pipeline. The location is very rural with an oil field lease road bridge crossing the river about 150 feet north of the owt pipeline. There was no fire or explosion associated with the release. Recent flooding and continued rain in the area prevented immediate direct access to the leaking section of pipeline. The line segment was shut in and pressure in the 17.5 mile segment was reduced immediately upon discovery of the leak. A positive pressure is being maintained on the isolated segment to keep water and silt out of the pipeline until personnel can safely assess the pipeline. The pipeline leak will be assessed and repaired once the flood waters have subsided. This will hopefully to start soon, pending site accessibility with equipment. This incident report was not filed within the 30 days of the leak discovery as it was not expected to meet the reportable incident criteria at that time. Once access to the site improved, a better estimate for repair was established. The new cost estimate is more than $50,000 so this incident report is being filed. This incident report is missing information that can only be determined once the leak is accessed and repaired. It will be updated once the pipe and the leak have been evaluated. Update: the leak was finally accessible on december 8th, 2014. Excavation via hydrovac exposed the pipeline and the area of the leak. A 0.100' pin hole was located at the 7 o'clock position of the pipe. The 17.57 mile isolated section of pipeline was blown down and contractor completed excavation on december 9th, 2014. Approximately 115' of the pipeline was cut out on december 10th, 2014 and new 12.75' od x-42 0.250' wt fbe erw pipe was installed on december 10th and 11th. The pipeline was purged, pressured up and returned to service on december 12th, 2014 at approximately 2:30pm. The cause of the leak was localized external corrosion.
Detailed record list
Report Received Date
2014-11-24 00:00:00
Iyear
2014
Report Number
20140127
Supplemental Number
16643
Report Type
Supplemental Final
Operator Id
31531
Name
Oneok Westex Transmission, Llc
Operator Street Address
100 West Fifth Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2014-09-23 10:44:00
Location Latitude
31.40785
Location Longitude
-103.25797
Nrc Rpt Num
1096235
Nrc Rpt Datetime
2014-09-23 14:22:00
Commodity Released Type
Natural Gas
Unintentional Release
38
Intentional Release
6604
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2014-09-23 15:37:00
Restart Datetime
2014-12-12 14:30:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2014-09-23 10:44:00
On Site Datetime
2014-09-23 11:30:00
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
79719
Onshore City Name
Not Within A Municipality
Onshore County Name
Reeves
Designated Location
Milepost
Designated Name
Pecos River
Pipe Fac Name
4001-000
Segment Name
Pecos River Crossing
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
84
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
12
Pipe Wall Thickness
0.219
Pipe Smys
42000
Pipe Specification
X-42
Pipe Seam Type
Longitudinal Erw - Unknown Frequency
Pipe Manufacturer
Jones And Laughlin Steel
Pipe Coating Type
Coal Tar
Installation Year
1968
Manufactured Year
1968
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
256
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
144
Est Cost Intentional Release
26259
Est Cost Prop Damage
121863
Est Cost Emergency
1000
Est Cost Other
0
Prpty
149266
Accident Psig
840
Mop Psig
953
Mop Cfr Section
192.619(A)(2)
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
92770
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Notification From Public
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
Corrosion Failure
Cause Details
External Corrosion
Internal External
External Corrosion
Visual Exam Results
Localized Pitting
Galvanic Corrosion Ind
Yes
Field Exam Basis Ind
Yes
Underground Location
Yes
Under Cathodic Protection Ind
Yes
Cathodic Pro Start Year
1968
Shielding Evident
Yes
Cathodic Survey Type
Yes
Cp Annual Survey Ind
Yes
Close Interval Survey Ind
Yes
Other Cp Survey Ind
Yes
Cp Annual Survey Year
2014
Close Interval Survey Year
2006
Other Cp Survey Year
2006
Prior Damage
Yes
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
Yes, But The Point Of The Accident Was Not Identified As A Dig Site
Direct Asmnt Pnt Not Idntf Yr
2006
Non Destructive Exam Ind
No
Preparer Name
P**** F***
Preparer Title
Senior Pipeline Safety Engineer
Preparer Email
P*********@o****.com
Preparer Telephone
918 588 7131
Preparer Fax
918 732 1311
Authorizer Name
W***** R* D*****
Authorizer Title
Vice President
Authorizer Telephone
918 588 7424
Authorizer Email
W************@o****.com
Narrative
At approximately 1044 hours on september 23, 2014, oneok westex transmission (owt) was notified by the public of a possible gas leak near a pecos river crossing on the 12 inch line 4001-000 about 14 miles east of pecos, tx in a class I area. Owt personnel arrived on site at approximately 1130 hours and observed gas bubbling up in water standing over the pipeline. The location is very rural with an oil field lease road bridge crossing the river about 150 feet north of the owt pipeline. There was no fire or explosion associated with the release. Recent flooding and continued rain in the area prevented immediate direct access to the leaking section of pipeline. The line segment was shut in and pressure in the 17.5 mile segment was reduced immediately upon discovery of the leak. A positive pressure is being maintained on the isolated segment to keep water and silt out of the pipeline until personnel can safely assess the pipeline. The pipeline leak will be assessed and repaired once the flood waters have subsided. This will hopefully to start soon, pending site accessibility with equipment. This incident report was not filed within the 30 days of the leak discovery as it was not expected to meet the reportable incident criteria at that time. Once access to the site improved, a better estimate for repair was established. The new cost estimate is more than $50,000 so this incident report is being filed. This incident report is missing information that can only be determined once the leak is accessed and repaired. It will be updated once the pipe and the leak have been evaluated. Update: the leak was finally accessible on december 8th, 2014. Excavation via hydrovac exposed the pipeline and the area of the leak. A 0.100' pin hole was located at the 7 o'clock position of the pipe. The 17.57 mile isolated section of pipeline was blown down and contractor completed excavation on december 9th, 2014. Approximately 115' of the pipeline was cut out on december 10th, 2014 and new 12.75' od x-42 0.250' wt fbe erw pipe was installed on december 10th and 11th. The pipeline was purged, pressured up and returned to service on december 12th, 2014 at approximately 2:30pm. The cause of the leak was localized external corrosion.
| Report Received Date | 2014-11-24 00:00:00 |
|---|---|
| Iyear | 2014 |
| Report Number | 20140127 |
| Supplemental Number | 16643 |
| Report Type | Supplemental Final |
| Operator Id | 31531 PHMSA Enforcement |
| Name | Oneok Westex Transmission, Llc |
| Operator Street Address | 100 West Fifth Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Local Datetime | 2014-09-23 10:44:00 |
| Location Latitude | 31.40785 Google Maps OpenStreetMap |
| Location Longitude | -103.25797 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1096235 NRC Report How to search |
| Nrc Rpt Datetime | 2014-09-23 14:22:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 38 |
| Intentional Release | 6604 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2014-09-23 15:37:00 |
| Restart Datetime | 2014-12-12 14:30:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2014-09-23 10:44:00 |
| On Site Datetime | 2014-09-23 11:30:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79719 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Reeves |
| Designated Location | Milepost |
| Designated Name | Pecos River |
| Pipe Fac Name | 4001-000 |
| Segment Name | Pecos River Crossing |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 84 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 12 |
| Pipe Wall Thickness | 0.219 |
| Pipe Smys | 42000 |
| Pipe Specification | X-42 |
| Pipe Seam Type | Longitudinal Erw - Unknown Frequency |
| Pipe Manufacturer | Jones And Laughlin Steel |
| Pipe Coating Type | Coal Tar |
| Installation Year | 1968 |
| Manufactured Year | 1968 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 256 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 144 |
| Est Cost Intentional Release | 26259 |
| Est Cost Prop Damage | 121863 |
| Est Cost Emergency | 1000 |
| Est Cost Other | 0 |
| Prpty | 149266 |
| Accident Psig | 840 |
| Mop Psig | 953 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 92770 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Notification From Public |
| 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 | Corrosion Failure |
| Cause Details | External Corrosion |
| Internal External | External Corrosion |
| Visual Exam Results | Localized Pitting |
| Galvanic Corrosion Ind | Yes |
| Field Exam Basis Ind | Yes |
| Underground Location | Yes |
| Under Cathodic Protection Ind | Yes |
| Cathodic Pro Start Year | 1968 |
| Shielding Evident | Yes |
| Cathodic Survey Type | Yes |
| Cp Annual Survey Ind | Yes |
| Close Interval Survey Ind | Yes |
| Other Cp Survey Ind | Yes |
| Cp Annual Survey Year | 2014 |
| Close Interval Survey Year | 2006 |
| Other Cp Survey Year | 2006 |
| Prior Damage | Yes |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | Yes, But The Point Of The Accident Was Not Identified As A Dig Site |
| Direct Asmnt Pnt Not Idntf Yr | 2006 |
| Non Destructive Exam Ind | No |
| Preparer Name | P**** F*** |
| Preparer Title | Senior Pipeline Safety Engineer |
| Preparer Email | P*********@o****.com |
| Preparer Telephone | 918 588 7131 |
| Preparer Fax | 918 732 1311 |
| Authorizer Name | W***** R* D***** |
| Authorizer Title | Vice President |
| Authorizer Telephone | 918 588 7424 |
| Authorizer Email | W************@o****.com |
| Narrative | At approximately 1044 hours on september 23, 2014, oneok westex transmission (owt) was notified by the public of a possible gas leak near a pecos river crossing on the 12 inch line 4001-000 about 14 miles east of pecos, tx in a class I area. Owt personnel arrived on site at approximately 1130 hours and observed gas bubbling up in water standing over the pipeline. The location is very rural with an oil field lease road bridge crossing the river about 150 feet north of the owt pipeline. There was no fire or explosion associated with the release. Recent flooding and continued rain in the area prevented immediate direct access to the leaking section of pipeline. The line segment was shut in and pressure in the 17.5 mile segment was reduced immediately upon discovery of the leak. A positive pressure is being maintained on the isolated segment to keep water and silt out of the pipeline until personnel can safely assess the pipeline. The pipeline leak will be assessed and repaired once the flood waters have subsided. This will hopefully to start soon, pending site accessibility with equipment. This incident report was not filed within the 30 days of the leak discovery as it was not expected to meet the reportable incident criteria at that time. Once access to the site improved, a better estimate for repair was established. The new cost estimate is more than $50,000 so this incident report is being filed. This incident report is missing information that can only be determined once the leak is accessed and repaired. It will be updated once the pipe and the leak have been evaluated. Update: the leak was finally accessible on december 8th, 2014. Excavation via hydrovac exposed the pipeline and the area of the leak. A 0.100' pin hole was located at the 7 o'clock position of the pipe. The 17.57 mile isolated section of pipeline was blown down and contractor completed excavation on december 9th, 2014. Approximately 115' of the pipeline was cut out on december 10th, 2014 and new 12.75' od x-42 0.250' wt fbe erw pipe was installed on december 10th and 11th. The pipeline was purged, pressured up and returned to service on december 12th, 2014 at approximately 2:30pm. The cause of the leak was localized external corrosion. |
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