Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2017-11-12 — OK
Operator
Williams Field Services
Cause
Equipment Failure
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$250
Incident datetime
2017-11-12 03:30
Report number
Location
OK
Narrative
An operations technician at the adjacent opal plant was conducting scheduled facility rounds of the plant when a leak was observed at 3:30am in the vicinity of the overland pass pipeline (oppl) - opal meter thermal line for the by pass piping. This technician radioed the opal plant control center and they called oppl's pipeline control advising them of the leak. Pipeline control decided to perform an emergency shutdown and isolation of the oppl - opal meter; this was performed at 3:35am. Pipeline control notified williams security operations center and the on-call oppl technician 3:40am and 3:45am, respectively. Opal plant technicians monitored atmoshperic conditions for safety/vapor cloud until the oppl technicians arrived onsite at 7:00am. Oppl technicians verified the site was safe and free of hazardous liquid vapor and identified the source of the leak on a 1" pipe nipple. The pipe nipple was replaced and the opal meter was purged, packed, and placed back in service at 11:37am. Piping was checked for leaks before oppl technicans left the facility. An incident investigation was performed to identify the failure. The investigation showed that the cause was similar to an earlier event at a similar facility in may 2017 at the bushton meter. The cause was incomplete and improperly made pipe nipples and threads on thermal relief piping. Other similar pipe at the opal meter was removed and inspected and similar issues were found; this affected pipe was removed and plugged. Thermal relief is being achieved in the absence of this piping through an analysis of the p&ids and establishing a clear path to relief and providing administrative/engineering controls to maintain (using carseal program) the relief path. Similar piping exists at other oppl meter stations and facilities and is being removed via moc to avoid similar events in the future. 48-hr nrc notification was provided via email as directed by michael jones (PHMSA) on 11/14/2017 at 10:39am to michael jones (PHMSA)
Detailed record list
Report Received Date
2017-12-04 00:00:00
Iyear
2017
Report Number
20170395
Supplemental Number
22892
Report Type
Supplemental Final
Operator Id
30826
Name
Williams Field Services
Operator Street Address
One Williams Center Wrc-3
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74172
Local Datetime
2017-11-12 03:30:00
Location Latitude
41.773061
Location Longitude
-110.345088
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls
0.57
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2017-11-12 03:30:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2017-11-12 03:35:00
Restart Datetime
2017-11-12 11:37:00
On Site Datetime
2017-11-12 07:30:00
Nrc Rpt Datetime
2017-11-12 18:00:00
Nrc Rpt Num
1197140
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Overland Pass Pipeline - Opal Meter Station
Segment Name
10435 Mainline
Onshore State Abbreviation
Wy
Onshore Postal Code
83124
Onshore City Name
Opal
Onshore County Name
Lincoln
Designated Location
Milepost/valve Station
Designated Name
0
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
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
1
Pipe Wall Thickness
0.218
Pipe Smys
35000
Pipe Specification
Unk
Pipe Seam Type
Seamless
Pipe Manufacturer
Unk
Pipe Coating Type
Paint
Installation Year
2009
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Connection Failure
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
168
Est Cost Prop Damage
250
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
418
Accident Psig
1020
Mop Psig
1440
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
No
Scada Conf Ind
No
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf 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
Pipeline control found no indication of leak in data. Nature of the release did not allow for detection at control board.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Threaded Connection/coupling Failure
Eq Failure Type
Threaded Connection/coupling Failure
Other Stripped Ind
Pipe Nipple
Eq Additional Other Ind
Yes
Eq Additional Other Details
Pipe Threads Were Not Completely And Properly Cut-In
Preparer Name
C****** B*****
Preparer Title
Engineer Pipeline Safety
Preparer Email
C*************@w*******.com
Preparer Telephone
801-584-6027
Prepared Date
2017-12-06 00:00:00
Authorizer Name
J**** L******
Authorizer Telephone
801-584-6657
Authorizer Title
Manager Pipeline Safety
Authorizer Email
J************@w*******.com
Narrative
An operations technician at the adjacent opal plant was conducting scheduled facility rounds of the plant when a leak was observed at 3:30am in the vicinity of the overland pass pipeline (oppl) - opal meter thermal line for the by pass piping. This technician radioed the opal plant control center and they called oppl's pipeline control advising them of the leak. Pipeline control decided to perform an emergency shutdown and isolation of the oppl - opal meter; this was performed at 3:35am. Pipeline control notified williams security operations center and the on-call oppl technician 3:40am and 3:45am, respectively. Opal plant technicians monitored atmoshperic conditions for safety/vapor cloud until the oppl technicians arrived onsite at 7:00am. Oppl technicians verified the site was safe and free of hazardous liquid vapor and identified the source of the leak on a 1" pipe nipple. The pipe nipple was replaced and the opal meter was purged, packed, and placed back in service at 11:37am. Piping was checked for leaks before oppl technicans left the facility. An incident investigation was performed to identify the failure. The investigation showed that the cause was similar to an earlier event at a similar facility in may 2017 at the bushton meter. The cause was incomplete and improperly made pipe nipples and threads on thermal relief piping. Other similar pipe at the opal meter was removed and inspected and similar issues were found; this affected pipe was removed and plugged. Thermal relief is being achieved in the absence of this piping through an analysis of the p&ids and establishing a clear path to relief and providing administrative/engineering controls to maintain (using carseal program) the relief path. Similar piping exists at other oppl meter stations and facilities and is being removed via moc to avoid similar events in the future. 48-hr nrc notification was provided via email as directed by michael jones (PHMSA) on 11/14/2017 at 10:39am to michael jones (PHMSA)
| Report Received Date | 2017-12-04 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170395 |
| Supplemental Number | 22892 |
| Report Type | Supplemental Final |
| Operator Id | 30826 PHMSA Enforcement |
| Name | Williams Field Services |
| Operator Street Address | One Williams Center Wrc-3 |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74172 |
| Local Datetime | 2017-11-12 03:30:00 |
| Location Latitude | 41.773061 Google Maps OpenStreetMap |
| Location Longitude | -110.345088 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid) |
| Unintentional Release Bbls | 0.57 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2017-11-12 03:30:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2017-11-12 03:35:00 |
| Restart Datetime | 2017-11-12 11:37:00 |
| On Site Datetime | 2017-11-12 07:30:00 |
| Nrc Rpt Datetime | 2017-11-12 18:00:00 |
| Nrc Rpt Num | 1197140 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Overland Pass Pipeline - Opal Meter Station |
| Segment Name | 10435 Mainline |
| Onshore State Abbreviation | Wy |
| Onshore Postal Code | 83124 |
| Onshore City Name | Opal |
| Onshore County Name | Lincoln |
| Designated Location | Milepost/valve Station |
| Designated Name | 0 |
| 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 | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 1 |
| Pipe Wall Thickness | 0.218 |
| Pipe Smys | 35000 |
| Pipe Specification | Unk |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | Unk |
| Pipe Coating Type | Paint |
| Installation Year | 2009 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Connection Failure |
| 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 | 168 |
| Est Cost Prop Damage | 250 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 418 |
| Accident Psig | 1020 |
| Mop Psig | 1440 |
| 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 | No |
| Scada Conf Ind | No |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf 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 | Pipeline control found no indication of leak in data. Nature of the release did not allow for detection at control board. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Threaded Connection/coupling Failure |
| Eq Failure Type | Threaded Connection/coupling Failure |
| Other Stripped Ind | Pipe Nipple |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Pipe Threads Were Not Completely And Properly Cut-In |
| Preparer Name | C****** B***** |
| Preparer Title | Engineer Pipeline Safety |
| Preparer Email | C*************@w*******.com |
| Preparer Telephone | 801-584-6027 |
| Prepared Date | 2017-12-06 00:00:00 |
| Authorizer Name | J**** L****** |
| Authorizer Telephone | 801-584-6657 |
| Authorizer Title | Manager Pipeline Safety |
| Authorizer Email | J************@w*******.com |
| Narrative | An operations technician at the adjacent opal plant was conducting scheduled facility rounds of the plant when a leak was observed at 3:30am in the vicinity of the overland pass pipeline (oppl) - opal meter thermal line for the by pass piping. This technician radioed the opal plant control center and they called oppl's pipeline control advising them of the leak. Pipeline control decided to perform an emergency shutdown and isolation of the oppl - opal meter; this was performed at 3:35am. Pipeline control notified williams security operations center and the on-call oppl technician 3:40am and 3:45am, respectively. Opal plant technicians monitored atmoshperic conditions for safety/vapor cloud until the oppl technicians arrived onsite at 7:00am. Oppl technicians verified the site was safe and free of hazardous liquid vapor and identified the source of the leak on a 1" pipe nipple. The pipe nipple was replaced and the opal meter was purged, packed, and placed back in service at 11:37am. Piping was checked for leaks before oppl technicans left the facility. An incident investigation was performed to identify the failure. The investigation showed that the cause was similar to an earlier event at a similar facility in may 2017 at the bushton meter. The cause was incomplete and improperly made pipe nipples and threads on thermal relief piping. Other similar pipe at the opal meter was removed and inspected and similar issues were found; this affected pipe was removed and plugged. Thermal relief is being achieved in the absence of this piping through an analysis of the p&ids and establishing a clear path to relief and providing administrative/engineering controls to maintain (using carseal program) the relief path. Similar piping exists at other oppl meter stations and facilities and is being removed via moc to avoid similar events in the future. 48-hr nrc notification was provided via email as directed by michael jones (PHMSA) on 11/14/2017 at 10:39am to michael jones (PHMSA) |
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