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NGI-SIMOPS

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  • 1. SIMOPS NGI TRAINING CENTRE SIM ultaneous OP eration S
  • 2. Definition
    • SIMOPS is the performance of potentially conflicting operations at the same time, in the same location. Both jobs may be done safely, but without coordination, one act could have a dangerous consequence to other.
    • Example:
    • Commissioning work in Construction areas
    • Production activities in Commissioning areas
    • Construction work in drilling areas
    • Hot work going on during break of containment in process area.
  • 3. Main Risk During SIMOPS
    • The proximity between several potential sources of hydrocarbon release and activities having potential ignition sources
    • The coexistence of people who might be unaware of the risks inherent to activities they are not familiar with
    • The risk of physical interference such as heavy lifting, anchorage ,etc.
  • 4.
    • Introduction of Fuel Gas for Boiler Firing via the following route:
    • 12” HP Fuel Gas(86 bar) connection from Flare area to U122
    • Pressure reduction to 5.5 bar by two Pressure Control Valve in U122
    • Heating by Electrical Heater in U122
    • Routed via main pipe rack to Boiler “A”
    SIMOPS that will be start very soon on site is:
  • 5. 12” HP Fuel Gas - 86 bar 12” LP Fuel Gas – 5.5 bar Fuel Gas Route for Boiler Start-up Fuel gas supply from 56” pipe line Pressure reduction and heating in U122 Boiler “A”
  • 6. 12” HP Fuel Gas - 86 bar 12” LP Fuel Gas – 5.5 bar Fuel gas supply from 56” pipe line Pressure reduction and heating in U122 Boiler “A” Fuel Gas Connection to other units that should be blinded
  • 7. HYDROCARBON RISK During SIMOPS, Hydrocarbon (Fuel Gas) will be introduce on site, Therefore it is necessary to be familiar with:
  • 8. HYDROCARBON: Any of numerous organic compounds, that contain only carbon and hydrogen , such as Methane , Ethane, LPG (Propane and Butane) and Condensate . WHAT IS HYDROCARBON ?
  • 9. DIFFERENT FORMS OF HYDROCARBONS GAS CONDENSATE CHEMICALS
  • 10. GAS
    • WHAT CREATES A DANGER:
    • Flammability
    • Explosivity
    • Density, buoyancy
    • Pressure
    • Toxicity
  • 11. GAS FLAMMABILITY Easily ignited and capable of burning rapidly.
  • 12. GAS EXPLOSIVITY Can explode easily if complying with necessary concentration conditions
  • 13. 15 Too Rich IMPORTANT! 100 5 0 Upper Explosive Limit (UEL) Lower Explosive Limit (LEL) Not enough gas (to create an explosion) % Methane (CH 4 ) IN Air Too much gas (not enough oxygen to support combustion) Explosive Range (for Methane)
  • 14. Explosive Limits
  • 15. GAS PREVENTION MESURES FOR FLAMMABILITY AND EXPLOSIVITY RISKS:
    • Restricted areas with specific rules such as:
      • Implementation of Work Permit system
      • No smoking
      • Intrinsically Safe equipment…
      • Control of static electricity
  • 16. GAS DENSITY BUOYANCY: A gas can be heavier or lighter than air Heavier than Air : accumulation of gas in low areas as trenches, tanks… Lighter than Air : accumulation of gas in top of vessels… or natural dispersion if no roof.
  • 17. GAS DENSITY: A gas can be heavier or lighter than air Possible accumulation of gas then: GAS TEST before entering in confined space !
  • 18. PRESSURE: High pressure can create an explosion GAS includes also effect of accumulated energy: rupture of confinement missiles, gas expansion... 10 20 30 bars 0
  • 19. GAS PREVENTION: CONTROL AND MONITORING OF PRESSURE 10 20 30 bars 0
  • 20. PRESSURE: Change in gas pressure = cold with danger of freezing or Liquid formation GAS
  • 21. GAS TOXICITY/ASPHIXIA: A gas can affect your health from simple weakness to… death !!! According to : Nature of gas Concentration Exposure time
  • 22. GAS TOXICITY: Other very toxic gases are associated to HYDROCARBON, as H 2 S H 2 S H 2 S A special course is dedicated to H2S
  • 23. GASES CHEMICALS SMOKE GO ACROSS THE WIND TO ESCAPE WIND ESCAPE GAS ESCAPE WIND
  • 24. CONDENSATES, CHEMICALS…
    • DANGERS:
    • Flammability
    • Explosivity
    • Toxicity
  • 25. CONDENSATES, CHEMICALS…
    • IRRITANT ON SKIN
    • HARMFUL BY INHALATION
    • ASPHYXIANT
    USE PPE
  • 26.
    • IRRITANT ON SKIN
    • HARMFUL BY INHALATION
    • ASPHYXIANT
    USE ADAPTED PPE CONDENSATES, CHEMICALS…
  • 27.
    • To avoid accident / incident during SIMOPS you need:
    • Adequate Provision
    • Strict safety procedures and supervision
  • 28.
    • SIMOPS safety systems specific tests and monitoring : A general actual test of the installation Safety systems such as Fire water system and Gas detection system has to be done prior to start of Simultaneous operations.
    • Isolation Systems : Isolation system such as isolation valves and shutdown system to be installed and identified to operate in case of any leakage
    Specific provisions for SIMOPS
  • 29.
    • Venting : It is compulsory to carry out a thorough prior check to avoid any possible hazardous venting towards works areas .
    • Training to be conducted for all personnel involve in SIMOPS
    • Safety equipment such as Gas tester, Radios, etc to be check for operability
    • Personnel Access Control: Access between areas will be controlled by badges, manned security , the permit to work system
  • 30.
    • Alarm : All personnel should be familiar and trained with alarm tone .
    • Escape ways and Muster Points to be clearly marked and access free
    • Fire-fighting facilities to be ready
    • Clinic, Ambulance and Search and Rescue team to be ready and on-call
    • Security personnel to be trained in order to cooperate with HSE personnel in case of emergency and control the access to restricted areas
  • 31. SIMOPS Safety
    • General operating philosophy
      • No Hot Permit to Work is allowed in the vicinity of operations inducing hazard of hydrocarbon release such as: Welding, Spray painting, etc.
    • Access
      • Only Authorized personnel to be allowed to enter SIMOPS area that will be restricted by fence and Tag System
  • 32. SIMOPS Safety
    • Keeping as low as reasonably practical the number of persons on site during activities, Numbers must be controlled and monitor by Tag system
    • Full compliance of the activity with the permit to work
    • Pre-check of Plant and Equipment such as Vehicles, Electrical and power tools, IS communication devices, Anti spark equipment
  • 33. SIMOPS Safety
    • Personal protective equipment and escape equipment must be suitable for use within a sour (H2S ) service environment
    • Adequate Signs to be installed according to the nature of the job such as “No Smoking”, “Do not Touch”, etc
    • Continuous safety surveillance of the SIMOPS Area to check any anomaly. Report anomalies, near misses, incident or accident.
    • Restricting the number of heavy lifts over the production facilities
  • 34. THANK YOU FOR YOUR ATTENTION