Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2018-07-24 — TX
Operator
Dcp Midstream
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)
$75,000
Incident datetime
2018-07-24 09:38
Report number
Location
TX
Narrative
On 7/24 a dcp employee noticed a release at a valve assembly while preparing for an upcoming ili tool run. The release was temporarily repaired with a pressure contacting clamp until the permanent repair was scheduled. On 7/26 it was noticed that the temporary repair was leaking, and at this time the crew with equipment was in route to perform the permanent repair. 7/29 the flange and gasket were replaced and the repair was complete. This segment, where this valve assembly is located, has two outlets and deliveries are made concurrently , it is believed that due to the fluctuation of volume and pressure the gasket was exposed to greater expansions and contractions. As a preventative measure on this lateral the operation technicians will conduct additional testing around the flanges during the DOT checks at the valve
Detailed record list
Report Received Date
2018-08-24 00:00:00
Iyear
2018
Report Number
20180253
Supplemental Number
31248
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
2018-07-24 09:38:00
Location Latitude
30.98902
Location Longitude
-101.0787
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
6.2
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
2018-07-24 09:38:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
A Temp. Pressure Containing Device Was Installed Until A Perm. Repair Sch.
On Site Datetime
2018-07-24 09:38:00
Nrc Rpt Num
Nrc Notification Required But Not Made
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Barnhart Meter Station
Segment Name
N2 Lateral
Onshore State Abbreviation
Tx
Onshore Postal Code
75835
Onshore City Name
Not Within A Municipality
Onshore County Name
Crockett
Designated Location
Milepost/valve Station
Designated Name
Barnhart Ms
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
Intrastate
Item Involved
Flange Assembly
Installation Year
1996
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
20
Est Cost Prop Damage
75000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
75020
Accident Psig
540
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
Controllers would not be a contributing factor to the leak on a gasket failure.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
Gasket
Eq Additional Other Ind
Yes
Eq Additional Other Details
Segment Dynamic Controls
Preparer Name
J*** P*******
Preparer Title
Manager Pipeline Compliance
Preparer Email
J*********@d***********.com
Preparer Telephone
405-605-3859
Prepared Date
2018-11-30 00:00:00
Authorizer Name
J*** P*******
Authorizer Telephone
405-605-3859
Authorizer Title
Manager Pipeline Compliance
Authorizer Email
J*********@d***********.com
Narrative
On 7/24 a dcp employee noticed a release at a valve assembly while preparing for an upcoming ili tool run. The release was temporarily repaired with a pressure contacting clamp until the permanent repair was scheduled. On 7/26 it was noticed that the temporary repair was leaking, and at this time the crew with equipment was in route to perform the permanent repair. 7/29 the flange and gasket were replaced and the repair was complete. This segment, where this valve assembly is located, has two outlets and deliveries are made concurrently , it is believed that due to the fluctuation of volume and pressure the gasket was exposed to greater expansions and contractions. As a preventative measure on this lateral the operation technicians will conduct additional testing around the flanges during the DOT checks at the valve
| Report Received Date | 2018-08-24 00:00:00 |
|---|---|
| Iyear | 2018 |
| Report Number | 20180253 |
| Supplemental Number | 31248 |
| 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 | 2018-07-24 09:38:00 |
| Location Latitude | 30.98902 Google Maps OpenStreetMap |
| Location Longitude | -101.0787 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 | 6.2 |
| 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 | 2018-07-24 09:38:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | A Temp. Pressure Containing Device Was Installed Until A Perm. Repair Sch. |
| On Site Datetime | 2018-07-24 09:38:00 |
| Nrc Rpt Num | Nrc Notification Required But Not Made NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Barnhart Meter Station |
| Segment Name | N2 Lateral |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 75835 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Crockett |
| Designated Location | Milepost/valve Station |
| Designated Name | Barnhart Ms |
| 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 | Intrastate |
| Item Involved | Flange Assembly |
| Installation Year | 1996 |
| 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 | 20 |
| Est Cost Prop Damage | 75000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 75020 |
| Accident Psig | 540 |
| 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 | Controllers would not be a contributing factor to the leak on a gasket failure. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | Gasket |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Segment Dynamic Controls |
| Preparer Name | J*** P******* |
| Preparer Title | Manager Pipeline Compliance |
| Preparer Email | J*********@d***********.com |
| Preparer Telephone | 405-605-3859 |
| Prepared Date | 2018-11-30 00:00:00 |
| Authorizer Name | J*** P******* |
| Authorizer Telephone | 405-605-3859 |
| Authorizer Title | Manager Pipeline Compliance |
| Authorizer Email | J*********@d***********.com |
| Narrative | On 7/24 a dcp employee noticed a release at a valve assembly while preparing for an upcoming ili tool run. The release was temporarily repaired with a pressure contacting clamp until the permanent repair was scheduled. On 7/26 it was noticed that the temporary repair was leaking, and at this time the crew with equipment was in route to perform the permanent repair. 7/29 the flange and gasket were replaced and the repair was complete. This segment, where this valve assembly is located, has two outlets and deliveries are made concurrently , it is believed that due to the fluctuation of volume and pressure the gasket was exposed to greater expansions and contractions. As a preventative measure on this lateral the operation technicians will conduct additional testing around the flanges during the DOT checks at the valve |
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