Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2017-09-24 — TX
Operator
Exxonmobil Production Company, A Division Of Exxon Mobil Corporation
Cause
Equipment Failure
Commodity
Co2 (Carbon Dioxide)
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$8,824
Incident datetime
2017-09-24 05:36
Report number
Location
TX
Narrative
Part h - narrative description of accident (supplement to form phsma 7000-1) the discharge rov's (2643a/b/c/d) on the CO2 sales compressors a, b, c and d tripped closed due to pt2682 malfunction, blocking compressors outlet resulting in sudden pressure increase. The control room called I&e to investigate failed pt2682 and closure of discharge rov's. Three I&e techs responded to CO2 sales followed by the I&e tech foreman. I&e tech foreman noticed significant movement in the discharge piping, directed the team to evacuate the area to the pdc and called control room for an e-stop. Control room initiated controlled shutdown of compressors a through d which was completed. During the event, compressor discharge piping and recycle lines shook damaging a support beam on "a" compressor discharge line and broke a 3/4 inch drain valve off compressor "a" recycle line causing a low CO2 alarm on fixed monitors. Personal monitors never alarmed. Enhancements made to the control logic of pt2682 to eliminate the closure of valves when the pressure transmitter fails. * part g, no. 6 (additional information) - pipe movement from the increase pressure in the system was identified; wouldn't necessarily call this vibration from unsupported pipe. - the piping was supported, due to the increased pressure the pipe moved.
Detailed record list
Report Received Date
2017-10-20 00:00:00
Iyear
2017
Report Number
20170343
Supplemental Number
22754
Report Type
Supplemental Final
Operator Id
4908
Name
Exxonmobil Production Company, A Division Of Exxon Mobil Corporation
Operator Street Address
22777 Springwoods Village Parkway W3.2a_upst Us Conv
Operator City Name
Spring
Operator State Abbreviation
TX
Operator Postal Code
77389
Local Datetime
2017-09-24 05:36:00
Location Latitude
41.87991
Location Longitude
-110.045
Commodity Released Type
Co2 (Carbon Dioxide)
Unintentional Release Bbls
28.75
Intentional Release Bbls
1724.84
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations)
Incident Identified Datetime
2017-09-24 05:36:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2017-09-24 06:05:00
Restart Datetime
2017-10-02 14:30:00
On Site Datetime
2017-09-24 05:50:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Wyoming Operation
Segment Name
Lb01
Onshore State Abbreviation
Wy
Onshore Postal Code
83101
Onshore City Name
Kemmerer
Onshore County Name
Lincoln County
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
Auxiliary Piping (E.g. Drain Lines)
Installation Year
1986
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
53
Est Cost Prop Damage
8824
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
8877
Accident Psig
2378
Mop Psig
2734
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Pipeline Function
> 20% Smys Regulated Gathering
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Cpm In Place Ind
No
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest Other Ind
Yes
Invest Other Ind Details
Failed Discharge Pressure Transmitter Created Instability; Which Caused Movement Of Above Ground Pipe Damaging Pipe Drain Valve.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Instrumentation Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
*pressure Transmitter Failure;pipe Mvmt F/pressure Increase;pipe Was Supported
Preparer Name
R****** T***
Preparer Title
Technical Asst.
Preparer Email
R***********@e*********.com
Preparer Telephone
832-625-4551
Prepared Date
2017-10-24 00:00:00
Authorizer Name
B** W***
Authorizer Telephone
832-624-1125
Authorizer Title
Labarge And Syu Sshe Supervisor
Authorizer Email
B*******@e*********.com
Narrative
Part h - narrative description of accident (supplement to form phsma 7000-1) the discharge rov's (2643a/b/c/d) on the CO2 sales compressors a, b, c and d tripped closed due to pt2682 malfunction, blocking compressors outlet resulting in sudden pressure increase. The control room called I&e to investigate failed pt2682 and closure of discharge rov's. Three I&e techs responded to CO2 sales followed by the I&e tech foreman. I&e tech foreman noticed significant movement in the discharge piping, directed the team to evacuate the area to the pdc and called control room for an e-stop. Control room initiated controlled shutdown of compressors a through d which was completed. During the event, compressor discharge piping and recycle lines shook damaging a support beam on "a" compressor discharge line and broke a 3/4 inch drain valve off compressor "a" recycle line causing a low CO2 alarm on fixed monitors. Personal monitors never alarmed. Enhancements made to the control logic of pt2682 to eliminate the closure of valves when the pressure transmitter fails. * part g, no. 6 (additional information) - pipe movement from the increase pressure in the system was identified; wouldn't necessarily call this vibration from unsupported pipe. - the piping was supported, due to the increased pressure the pipe moved.
| Report Received Date | 2017-10-20 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170343 |
| Supplemental Number | 22754 |
| Report Type | Supplemental Final |
| Operator Id | 4908 PHMSA Enforcement |
| Name | Exxonmobil Production Company, A Division Of Exxon Mobil Corporation |
| Operator Street Address | 22777 Springwoods Village Parkway W3.2a_upst Us Conv |
| Operator City Name | Spring |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77389 |
| Local Datetime | 2017-09-24 05:36:00 |
| Location Latitude | 41.87991 Google Maps OpenStreetMap |
| Location Longitude | -110.045 Google Maps OpenStreetMap |
| Commodity Released Type | Co2 (Carbon Dioxide) |
| Unintentional Release Bbls | 28.75 |
| Intentional Release Bbls | 1724.84 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations) |
| Incident Identified Datetime | 2017-09-24 05:36:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2017-09-24 06:05:00 |
| Restart Datetime | 2017-10-02 14:30:00 |
| On Site Datetime | 2017-09-24 05:50:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Wyoming Operation |
| Segment Name | Lb01 |
| Onshore State Abbreviation | Wy |
| Onshore Postal Code | 83101 |
| Onshore City Name | Kemmerer |
| Onshore County Name | Lincoln County |
| 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 | Auxiliary Piping (E.g. Drain Lines) |
| Installation Year | 1986 |
| 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 | 53 |
| Est Cost Prop Damage | 8824 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 8877 |
| Accident Psig | 2378 |
| Mop Psig | 2734 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Pipeline Function | > 20% Smys Regulated Gathering |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place Ind | No |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest Other Ind | Yes |
| Invest Other Ind Details | Failed Discharge Pressure Transmitter Created Instability; Which Caused Movement Of Above Ground Pipe Damaging Pipe Drain Valve. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Instrumentation Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | *pressure Transmitter Failure;pipe Mvmt F/pressure Increase;pipe Was Supported |
| Preparer Name | R****** T*** |
| Preparer Title | Technical Asst. |
| Preparer Email | R***********@e*********.com |
| Preparer Telephone | 832-625-4551 |
| Prepared Date | 2017-10-24 00:00:00 |
| Authorizer Name | B** W*** |
| Authorizer Telephone | 832-624-1125 |
| Authorizer Title | Labarge And Syu Sshe Supervisor |
| Authorizer Email | B*******@e*********.com |
| Narrative | Part h - narrative description of accident (supplement to form phsma 7000-1) the discharge rov's (2643a/b/c/d) on the CO2 sales compressors a, b, c and d tripped closed due to pt2682 malfunction, blocking compressors outlet resulting in sudden pressure increase. The control room called I&e to investigate failed pt2682 and closure of discharge rov's. Three I&e techs responded to CO2 sales followed by the I&e tech foreman. I&e tech foreman noticed significant movement in the discharge piping, directed the team to evacuate the area to the pdc and called control room for an e-stop. Control room initiated controlled shutdown of compressors a through d which was completed. During the event, compressor discharge piping and recycle lines shook damaging a support beam on "a" compressor discharge line and broke a 3/4 inch drain valve off compressor "a" recycle line causing a low CO2 alarm on fixed monitors. Personal monitors never alarmed. Enhancements made to the control logic of pt2682 to eliminate the closure of valves when the pressure transmitter fails. * part g, no. 6 (additional information) - pipe movement from the increase pressure in the system was identified; wouldn't necessarily call this vibration from unsupported pipe. - the piping was supported, due to the increased pressure the pipe moved. |
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