bowtie poster loss of containment
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1.01 Hydrocarbons
Offshore Topsides:
Loss of Containme
nt
PSV (Relief Valves, Rupture Discs, Rupture
Pins)
Pressure Switch High
Equipment / Piping Designed
for Maximum Pressure
Overpressure
Temporary MOCIncreased
Surveillance of Temporary
Repair
Temporary Repairs
Remain in Service Past Expiry Date (e.g. pipe
clamps, pipe wraps, etc.....)
Methodology of Establishing
Setpoints
Current Operating Conditions Identified
Improper Setpoints Selected
Operators Apply Bypass
Standard when Isolating Safety
Systems
Safety Device Isolated
Operator follows LO/TO
Procedure
Locked Valve Management
Blocked Valves on Inlets / Outlets
Inspection / Maintenance of
Hoses (Hydrocarbon / High Pressure
Service)
Material Selection and
Proper Installation
Deterioration of Hoses
(Weather, Chemical,
Mechanical, etc....)
Vacuum Valves / Vents
for Atmospheric Equipment
Pressure Switch Low
Equipment / Piping Designed
for Vacuum
Vacuum
Methodology of Establishing
Setpoints
Current Operating Conditions Identified
Improper Setpoints Selected
Operators Apply Bypass
Standard when Isolating Safety
Systems
Safety Device Isolated
Scheduled Maintenance of Flame Arrestors
(SAP PM)
Blocked Cent Outlet - Flame
Arrestors, etc..
Corrosion Inhibition Program / Chemical Injection
Inspection / Maintenance (Erosion and
Corrosion Monitoring Program)
Cathodic Protection
Internal Coatings
Material Selection and
Corrosion Allowance
Internal Corrosion
(Pitting, Wall Loss, localized
Corrosion, Environmental
Cracking, Material
Degradation)
Implementation of Findings from E&C Monitoring
Program
Degradation of Coatings /
Paint
Interior CoatingVessel Internal
Inspection Program
Scheduled Anode Function Test (SAP PM)
Anodes not Present / Consumed
Coatings / Paint System
Material Selection and
Corrosion Allowance
External Corrosion
(Pitting, Wall Loss,
Localized Corrosion,
Environmental Cracking, Material
Degradation)
Sand Detection and Monitoring
Fluid Velocity Limited to Minimize Erosion
Erosion
Comprehensive SurveillanceSolids Sampling
Automatic Monitoring Equipment Inoperable
Temperature Switch High /
Low
Equipment / Piping Designed
for Defined Operating Conditions
Temperature (High and
Low)
Methodology of Establishing
Setpoints
Current Operating Conditions Identified
Improper Setpoints Selected
Operators Apply Bypass
Standard when Isolating Safety
Systems
Safety Device Isolated
Blinds and Plugs Required on Open-Ended
Valves
Clear Procedures (SWP, JSA,
LO/TO, LOP)
Breaking into the Process (opening
pressurized Equipment, Launchers, Receivers or
piping)
Periodic Inspection by Maintenance and Integrity
Operations Daily Survey
Blinds and Plugs
Removed Without Being
Replaced
Predictive Maintenance
Program - Vibration
Monitoring and Analysis of Rotating
Equipment
Pulsation Dampeners
Support Designed to Withstand
Loads
Process Equipment Selected to Withstand
Loads
Material Fatigue
Scheduled Testing of Pulsation
Dampeners Charge (SAP
PM)
Incorrect Charge of Pulsation
Dampeners
Rotating Equipment Seals
(that require maintenance) are Maintained
Valve Seals (that require maintenance) are Maintained
Seals Specified for Operating
Conditions
Seal Failure / Degradation
Level Switch High
Equipment Designed for
Overflow
Over-Filling Wet / Dry Oil
Tanks
Methodology of Establishing
Setpoints
Current Operating Conditions Identified
Improper Setpoints Selected
Operators Apply Bypass
Standard when Isolating Safety
Systems
Safety Device Isolated
Fire and Gas Detection Leak Detection Ignition Control
Isolation of HC Inventories
within Systems (ESD, SDV,
SSDS, SCSSC, FSV, etc...)
Blowdown System - Valves, Actuators, Logic
Controller
Active Fire Protection (Deluge,
Sprinklers, Hoses, Foam,
Gaseous, Portables,
Water Systems)
Passive Fire Protection
(Coatings, etc..)
Layout Design (Reduce /
Minimize and Utilize Natural
Ventilation)
Fire (Immediate
Ignition)
Siphon breaker / Liquid
Seal Leg)
Siphoning
Daily Surveillance
Periodic HSE Area Survey Conducted
Natural Ventilation
Impaired by Obstructions (Tarps, Mud on Gratings, Boxes, Poor
Housekeeping, etc..)
Sub-sea Site Survey
Pipeline Right-of-Way Survey (Aerial, Boat,
Vehicular)
Remote SpillOperator follows
Temporary Equipment Procedure
MOC
Introduction of Temporary Equipment
Fire and Gas Detection Leak Detection Ignition Control
Isolation of HC Inventories
within Systems (ESD, SDV,
SSDS, SCSSC, FSV, etc..)
Blowdown System - Valves, Actuators, Logic
Controller
Active Fire Protection (Deluge,
Sprinklers, Hoses, Foam,
Gaseous, Portables,
Water Systems)
Passive Fire Protection
(Coatings, etc..)
Layout Design (Reduce /
Minimize and Utilize Natural
Ventilation)
Explosion (Delayed Ignition)
Daily Surveillance
Periodic HSE Area Survey Conducted
Natural Ventilation
Impaired by Obstructions (Tarps, Mud on Gratings, Boxes, Poor
Housekeeping, etc..)
Operator follows
Temporary Equipment Procedure
MOC
Introduction of Temporary Equipment
Voting Fire Detection System
Inadequate Information of
Fire Source
Siphon breaker / Liquid
Seal Leg)
Siphoning
Sub-sea Site Survey
Pipeline Right-of-Way Survey (Aerial, Boat,
Vehicular)
Remote Spill
Fire and Gas Detection Leak Detection Ignition Control
Isolation of HC Inventories
within Systems (ESD, SDV,
SSDS, SCSSC, FSV, etc..)
Blowdown System - Valves, Actuators, Logic
Controller
Secondary Containment / Drain System
Hydrocarbon Release (No
Ignition)
Siphon breaker / Liquid
Seal Leg)
Siphoning
Sub-sea Site Survey
Pipeline Right-of-Way Survey (Aerial, Boat,
Vehicular)
Remote Spill
Operator Follows
Procedures to Minimize Personnel
Exposure to H2S
Hydrocarbon Release, H2S (No Ignition)
Emergency Respirators
H2S Hazard and Awareness
Training
Monitoring for H2S /
Established Thresholds
Unknown Concentration / Production
of H2S
Fire and Gas Detection Leak Detection
Isolation of HC Inventories
within Systems (ESD, SDV,
SSDS, SCSSC, FSV, etc..)
Blowdown System - Valves, Actuators, Logic
Controller
Secondary Containment / Drain System
Response Cleanup (Minor)
Response Clean-up (Major)
Environmental Impact from
Facilities
Siphon breaker / Liquid
Seal Leg)
Siphoning
External Spill Response
Release Requires Outside
Notification and / or
Response
Sub-sea Site Survey
Pipeline Right-of-Way Survey (Aerial, Boat,
Vehicular)
Remote Spill
Appropriate PPE for Exposure
Showers and Eyewash Stations
Chemical Hazard and Awareness
Training
Personnel Overexposure
to Release
1.01 Hydrocarbons
Offshore Topsides:
Loss of Containme
nt
PSV (Relief Valves, Rupture Discs, Rupture
Pins)
Pressure Switch High
Equipment / Piping Designed
for Maximum Pressure
Overpressure
Temporary MOCIncreased
Surveillance of Temporary
Repair
Temporary Repairs
Remain in Service Past Expiry Date (e.g. pipe
clamps, pipe wraps, etc.....)
Methodology of Establishing
Setpoints
Current Operating Conditions Identified
Improper Setpoints Selected
Operators Apply Bypass
Standard when Isolating Safety
Systems
Safety Device Isolated
Operator follows LO/TO
Procedure
Locked Valve Management
Blocked Valves on Inlets / Outlets
Inspection / Maintenance of
Hoses (Hydrocarbon / High Pressure
Service)
Material Selection and
Proper Installation
Deterioration of Hoses
(Weather, Chemical,
Mechanical, etc....)
Vacuum Valves / Vents
for Atmospheric Equipment
Pressure Switch Low
Equipment / Piping Designed
for Vacuum
Vacuum
Methodology of Establishing
Setpoints
Current Operating Conditions Identified
Improper Setpoints Selected
Operators Apply Bypass
Standard when Isolating Safety
Systems
Safety Device Isolated
Scheduled Maintenance of Flame Arrestors
(SAP PM)
Blocked Cent Outlet - Flame
Arrestors, etc..
Corrosion Inhibition Program / Chemical Injection
Inspection / Maintenance (Erosion and
Corrosion Monitoring Program)
Cathodic Protection
Internal Coatings
Material Selection and
Corrosion Allowance
Internal Corrosion
(Pitting, Wall Loss, localized
Corrosion, Environmental
Cracking, Material
Degradation)
Implementation of Findings from E&C Monitoring
Program
Degradation of Coatings /
Paint
Interior CoatingVessel Internal
Inspection Program
Scheduled Anode Function Test (SAP PM)
Anodes not Present / Consumed
Coatings / Paint System
Material Selection and
Corrosion Allowance
External Corrosion
(Pitting, Wall Loss,
Localized Corrosion,
Environmental Cracking, Material
Degradation)
Sand Detection and Monitoring
Fluid Velocity Limited to Minimize Erosion
Erosion
Comprehensive SurveillanceSolids Sampling
Automatic Monitoring Equipment Inoperable
Temperature Switch High /
Low
Equipment / Piping Designed
for Defined Operating Conditions
Temperature (High and
Low)
Methodology of Establishing
Setpoints
Current Operating Conditions Identified
Improper Setpoints Selected
Operators Apply Bypass
Standard when Isolating Safety
Systems
Safety Device Isolated
Blinds and Plugs Required on Open-Ended
Valves
Clear Procedures (SWP, JSA,
LO/TO, LOP)
Breaking into the Process (opening
pressurized Equipment, Launchers, Receivers or
piping)
Periodic Inspection by Maintenance and Integrity
Operations Daily Survey
Blinds and Plugs
Removed Without Being
Replaced
Predictive Maintenance
Program - Vibration
Monitoring and Analysis of Rotating
Equipment
Pulsation Dampeners
Support Designed to Withstand
Loads
Process Equipment Selected to Withstand
Loads
Material Fatigue
Scheduled Testing of Pulsation
Dampeners Charge (SAP
PM)
Incorrect Charge of Pulsation
Dampeners
Rotating Equipment Seals
(that require maintenance) are Maintained
Valve Seals (that require maintenance) are Maintained
Seals Specified for Operating
Conditions
Seal Failure / Degradation
Level Switch High
Equipment Designed for
Overflow
Over-Filling Wet / Dry Oil
Tanks
Methodology of Establishing
Setpoints
Current Operating Conditions Identified
Improper Setpoints Selected
Operators Apply Bypass
Standard when Isolating Safety
Systems
Safety Device Isolated
Fire and Gas Detection Leak Detection Ignition Control
Isolation of HC Inventories
within Systems (ESD, SDV,
SSDS, SCSSC, FSV, etc...)
Blowdown System - Valves, Actuators, Logic
Controller
Active Fire Protection (Deluge,
Sprinklers, Hoses, Foam,
Gaseous, Portables,
Water Systems)
Passive Fire Protection
(Coatings, etc..)
Layout Design (Reduce /
Minimize and Utilize Natural
Ventilation)
Fire (Immediate
Ignition)
Siphon breaker / Liquid
Seal Leg)
Siphoning
Daily Surveillance
Periodic HSE Area Survey Conducted
Natural Ventilation
Impaired by Obstructions (Tarps, Mud on Gratings, Boxes, Poor
Housekeeping, etc..)
Sub-sea Site Survey
Pipeline Right-of-Way Survey (Aerial, Boat,
Vehicular)
Remote SpillOperator follows
Temporary Equipment Procedure
MOC
Introduction of Temporary Equipment
Fire and Gas Detection Leak Detection Ignition Control
Isolation of HC Inventories
within Systems (ESD, SDV,
SSDS, SCSSC, FSV, etc..)
Blowdown System - Valves, Actuators, Logic
Controller
Active Fire Protection (Deluge,
Sprinklers, Hoses, Foam,
Gaseous, Portables,
Water Systems)
Passive Fire Protection
(Coatings, etc..)
Layout Design (Reduce /
Minimize and Utilize Natural
Ventilation)
Explosion (Delayed Ignition)
Daily Surveillance
Periodic HSE Area Survey Conducted
Natural Ventilation
Impaired by Obstructions (Tarps, Mud on Gratings, Boxes, Poor
Housekeeping, etc..)
Operator follows
Temporary Equipment Procedure
MOC
Introduction of Temporary Equipment
Voting Fire Detection System
Inadequate Information of
Fire Source
Siphon breaker / Liquid
Seal Leg)
Siphoning
Sub-sea Site Survey
Pipeline Right-of-Way Survey (Aerial, Boat,
Vehicular)
Remote Spill
Fire and Gas Detection Leak Detection Ignition Control
Isolation of HC Inventories
within Systems (ESD, SDV,
SSDS, SCSSC, FSV, etc..)
Blowdown System - Valves, Actuators, Logic
Controller
Secondary Containment / Drain System
Hydrocarbon Release (No
Ignition)
Siphon breaker / Liquid
Seal Leg)
Siphoning
Sub-sea Site Survey
Pipeline Right-of-Way Survey (Aerial, Boat,
Vehicular)
Remote Spill
Operator Follows
Procedures to Minimize Personnel
Exposure to H2S
Hydrocarbon Release, H2S (No Ignition)
Emergency Respirators
H2S Hazard and Awareness
Training
Monitoring for H2S /
Established Thresholds
Unknown Concentration / Production
of H2S
Fire and Gas Detection Leak Detection
Isolation of HC Inventories
within Systems (ESD, SDV,
SSDS, SCSSC, FSV, etc..)
Blowdown System - Valves, Actuators, Logic
Controller
Secondary Containment / Drain System
Response Cleanup (Minor)
Response Clean-up (Major)
Environmental Impact from
Facilities
Siphon breaker / Liquid
Seal Leg)
Siphoning
External Spill Response
Release Requires Outside
Notification and / or
Response
Sub-sea Site Survey
Pipeline Right-of-Way Survey (Aerial, Boat,
Vehicular)
Remote Spill
Appropriate PPE for Exposure
Showers and Eyewash Stations
Chemical Hazard and Awareness
Training
Personnel Overexposure
to Release
Loss of containmentCGE ZD^
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