Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2022-11-08 — TX
Operator
Dcp Midstream
Cause
Corrosion Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$20,000
Incident datetime
2022-11-08 23:36
Report number
Location
TX
Narrative
Operator on call was notified by icc (dcp remote monitoring center) that rattlesnake booster went down on low discharge pressure to barney booster at 11:49 pm cst on 11-8-22. Operator reviewed scada pressure trends and determined that there was a pipeline failure between rattlesnake and barney boosters. Operator drove to barney booster and shut the block valve at 12:35 am cst on 11-9-22 isolating the line. Rattlesnake booster's discharge block valves closed automatically due to low discharge pressure shutdown set points. Operator located failure point and ensured site was safe. Failed pipe cut out and sent for laboratory analysis. Metallographic examination indicated internal corrosion due to presence of CO2. Pipeline repaired and returned to service. Release determined to be reportable based on unintentional gas loss volume calculation on 11-9-22 at 12:30 pm cst. Updated report to reflect end of daylight savings time per PHMSA instruction. Final report 5/24/23. No changes other than checking the final box.
Detailed record list
Report Received Date
2022-12-08 00:00:00
Iyear
2022
Report Number
20220128
Supplemental Number
38009
Report Type
Supplemental Final
Operator Id
31130
Name
Dcp Midstream
Operator Street Address
2331 Citywest Blvd. Hq-08-S812-02
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77042
Local Datetime
2022-11-08 23:36:00
Time Zone
Central
Daylight Savings Ind
No
Location Latitude
36.3820556
Location Longitude
-98.6899444
Nrc Rpt Num
1352141
Nrc Rpt Datetime
2022-11-09 13:00:00
Additional Nrc Report Numbers
1352235
Commodity Released Type
Natural Gas
Unintentional Release
3574.99
Intentional Release
0
Accompanying Liquid
1
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Status When Identified
Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2022-11-09 00:35:00
Restart Datetime
2023-04-10 09:00:00
Communication State Fed Ind
No
Ignite Ind
No
Upstream Action Taken
Operational Control
Upstream Oprtnl Cntrl Detail
Units Upstream Of Failure Location Shutdown Automatically With Loss Of Discharge Pressure
Downstream Action Taken
Valve Closure
Downstream Vlv Close Datetime
2022-11-09 00:35:00
Num Pub Evacuated
0
Incident Identified Datetime
2022-11-08 23:36:00
On Site Datetime
2022-11-09 00:35:00
On Off Shore
Onshore
Onshore State Abbreviation
Ok
Onshore Postal Code
73737
Onshore City Name
Not Within A Municipality
Onshore County Name
Major County
Designated Location
Not Applicable
Pipe Fac Name
Cm-5-8
Segment Name
Cm-5-8
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
18
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Seam
Pipe Diameter
8.625
Pipe Wall Thickness
0.188
Pipe Smys
42000
Pipe Specification
Api 5lx
Pipe Seam Type
Longitudinal Erw - Unknown Frequency
Pipe Manufacturer
Unknown
Pipe Coating Type
Coal Tar
Coating Applied Ind
No
Installation Year
1984
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Longitudinal
Rupture Length
192
Rupture Width
12
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
188
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
10189
Est Cost Intentional Release
0
Est Cost Prop Damage
20000
Est Cost Emergency
0
Est Cost Other
0
Gas Cost In Mcf
2.85
Prpty
30189
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Wildlife Impact Ind
No
Accident Psig
930
Gas Flow In Pipe In Mcf
8000
Mop Psig
1000
Mop Cfr Section
192.619(A)(2)
Maop Established Date
1984-05-25 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
No
Downstream Valve Type Ind
Manual
Length Segment Isolated
52800
Internal Inspection Ind
No
Tight Mitered Ind
Yes
Operation Complications Ind
No
Pipeline Function
Type C Gathering
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Accident Identifier
Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations)
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 is not under control room management and is only monitored remotely.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
Internal Corrosion
Internal External
Internal Corrosion
Int Visual Exam Results
Localized Pitting
Int Other Corrosion Ind
Yes
Int Corrosion Type Details
Co2 In Pipeline
Int Metallurgical Basis Ind
Yes
Int Other Loc Ind
Yes
Corrosion Location Details
Top Point Of The Pipe, 12 O'clock
Corrosion Inhibitors
Yes
Corrosion Lining
No
Cleaning Dewatering
Yes
Corrosion Coupons
Yes
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
M****** M**
Preparer Title
Pipeline Compliance Specialist
Preparer Email
M****@d***********.com
Preparer Telephone
4055093343
Local Contact Name
M****** M**
Local Contact Email
M****@d***********.com
Local Contact Telephone
4055093343
Authorizer Name
M*** P*****
Authorizer Title
Pipeline Compliance Manager
Authorizer Telephone
9703970732
Authorizer Email
M******@d***********.com
Narrative
Operator on call was notified by icc (dcp remote monitoring center) that rattlesnake booster went down on low discharge pressure to barney booster at 11:49 pm cst on 11-8-22. Operator reviewed scada pressure trends and determined that there was a pipeline failure between rattlesnake and barney boosters. Operator drove to barney booster and shut the block valve at 12:35 am cst on 11-9-22 isolating the line. Rattlesnake booster's discharge block valves closed automatically due to low discharge pressure shutdown set points. Operator located failure point and ensured site was safe. Failed pipe cut out and sent for laboratory analysis. Metallographic examination indicated internal corrosion due to presence of CO2. Pipeline repaired and returned to service. Release determined to be reportable based on unintentional gas loss volume calculation on 11-9-22 at 12:30 pm cst. Updated report to reflect end of daylight savings time per PHMSA instruction. Final report 5/24/23. No changes other than checking the final box.
| Report Received Date | 2022-12-08 00:00:00 |
|---|---|
| Iyear | 2022 |
| Report Number | 20220128 |
| Supplemental Number | 38009 |
| Report Type | Supplemental Final |
| Operator Id | 31130 PHMSA Enforcement |
| Name | Dcp Midstream |
| Operator Street Address | 2331 Citywest Blvd. Hq-08-S812-02 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77042 |
| Local Datetime | 2022-11-08 23:36:00 |
| Time Zone | Central |
| Daylight Savings Ind | No |
| Location Latitude | 36.3820556 Google Maps OpenStreetMap |
| Location Longitude | -98.6899444 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1352141 NRC Report How to search |
| Nrc Rpt Datetime | 2022-11-09 13:00:00 |
| Additional Nrc Report Numbers | 1352235 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 3574.99 |
| Intentional Release | 0 |
| Accompanying Liquid | 1 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Status When Identified | Normal Operation, Includes Pauses During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2022-11-09 00:35:00 |
| Restart Datetime | 2023-04-10 09:00:00 |
| Communication State Fed Ind | No |
| Ignite Ind | No |
| Upstream Action Taken | Operational Control |
| Upstream Oprtnl Cntrl Detail | Units Upstream Of Failure Location Shutdown Automatically With Loss Of Discharge Pressure |
| Downstream Action Taken | Valve Closure |
| Downstream Vlv Close Datetime | 2022-11-09 00:35:00 |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2022-11-08 23:36:00 |
| On Site Datetime | 2022-11-09 00:35:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ok |
| Onshore Postal Code | 73737 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Major County |
| Designated Location | Not Applicable |
| Pipe Fac Name | Cm-5-8 |
| Segment Name | Cm-5-8 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 18 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Seam |
| Pipe Diameter | 8.625 |
| Pipe Wall Thickness | 0.188 |
| Pipe Smys | 42000 |
| Pipe Specification | Api 5lx |
| Pipe Seam Type | Longitudinal Erw - Unknown Frequency |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Coal Tar |
| Coating Applied Ind | No |
| Installation Year | 1984 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Longitudinal |
| Rupture Length | 192 |
| Rupture Width | 12 |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 188 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Did Occur In Mca Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 10189 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 20000 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 2.85 |
| Prpty | 30189 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Wildlife Impact Ind | No |
| Accident Psig | 930 |
| Gas Flow In Pipe In Mcf | 8000 |
| Mop Psig | 1000 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 1984-05-25 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized Ind | No |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 52800 |
| Internal Inspection Ind | No |
| Tight Mitered Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | Type C Gathering |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Accident Identifier | Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations) |
| 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 is not under control room management and is only monitored remotely. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | Internal Corrosion |
| Internal External | Internal Corrosion |
| Int Visual Exam Results | Localized Pitting |
| Int Other Corrosion Ind | Yes |
| Int Corrosion Type Details | Co2 In Pipeline |
| Int Metallurgical Basis Ind | Yes |
| Int Other Loc Ind | Yes |
| Corrosion Location Details | Top Point Of The Pipe, 12 O'clock |
| Corrosion Inhibitors | Yes |
| Corrosion Lining | No |
| Cleaning Dewatering | Yes |
| Corrosion Coupons | Yes |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | M****** M** |
| Preparer Title | Pipeline Compliance Specialist |
| Preparer Email | M****@d***********.com |
| Preparer Telephone | 4055093343 |
| Local Contact Name | M****** M** |
| Local Contact Email | M****@d***********.com |
| Local Contact Telephone | 4055093343 |
| Authorizer Name | M*** P***** |
| Authorizer Title | Pipeline Compliance Manager |
| Authorizer Telephone | 9703970732 |
| Authorizer Email | M******@d***********.com |
| Narrative | Operator on call was notified by icc (dcp remote monitoring center) that rattlesnake booster went down on low discharge pressure to barney booster at 11:49 pm cst on 11-8-22. Operator reviewed scada pressure trends and determined that there was a pipeline failure between rattlesnake and barney boosters. Operator drove to barney booster and shut the block valve at 12:35 am cst on 11-9-22 isolating the line. Rattlesnake booster's discharge block valves closed automatically due to low discharge pressure shutdown set points. Operator located failure point and ensured site was safe. Failed pipe cut out and sent for laboratory analysis. Metallographic examination indicated internal corrosion due to presence of CO2. Pipeline repaired and returned to service. Release determined to be reportable based on unintentional gas loss volume calculation on 11-9-22 at 12:30 pm cst. Updated report to reflect end of daylight savings time per PHMSA instruction. Final report 5/24/23. No changes other than checking the final box. |
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