NGI-SIMOPS

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NGI-SIMOPS

  1. 1. SIMOPS NGI TRAINING CENTRE SIM ultaneous OP eration S
  2. 2. Definition <ul><li>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. </li></ul><ul><li>Example: </li></ul><ul><li>Commissioning work in Construction areas </li></ul><ul><li>Production activities in Commissioning areas </li></ul><ul><li>Construction work in drilling areas </li></ul><ul><li>Hot work going on during break of containment in process area. </li></ul>
  3. 3. Main Risk During SIMOPS <ul><li>The proximity between several potential sources of hydrocarbon release and activities having potential ignition sources </li></ul><ul><li>The coexistence of people who might be unaware of the risks inherent to activities they are not familiar with </li></ul><ul><li>The risk of physical interference such as heavy lifting, anchorage ,etc. </li></ul>
  4. 4. <ul><li>Introduction of Fuel Gas for Boiler Firing via the following route: </li></ul><ul><li>12” HP Fuel Gas(86 bar) connection from Flare area to U122 </li></ul><ul><li>Pressure reduction to 5.5 bar by two Pressure Control Valve in U122 </li></ul><ul><li>Heating by Electrical Heater in U122 </li></ul><ul><li>Routed via main pipe rack to Boiler “A” </li></ul>SIMOPS that will be start very soon on site is:
  5. 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. 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. 7. HYDROCARBON RISK During SIMOPS, Hydrocarbon (Fuel Gas) will be introduce on site, Therefore it is necessary to be familiar with:
  8. 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. 9. DIFFERENT FORMS OF HYDROCARBONS GAS CONDENSATE CHEMICALS
  10. 10. GAS <ul><li>WHAT CREATES A DANGER: </li></ul><ul><li>Flammability </li></ul><ul><li>Explosivity </li></ul><ul><li>Density, buoyancy </li></ul><ul><li>Pressure </li></ul><ul><li>Toxicity </li></ul>
  11. 11. GAS FLAMMABILITY Easily ignited and capable of burning rapidly.
  12. 12. GAS EXPLOSIVITY Can explode easily if complying with necessary concentration conditions
  13. 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. 14. Explosive Limits
  15. 15. GAS PREVENTION MESURES FOR FLAMMABILITY AND EXPLOSIVITY RISKS: <ul><li>Restricted areas with specific rules such as: </li></ul><ul><ul><li>Implementation of Work Permit system </li></ul></ul><ul><ul><li>No smoking </li></ul></ul><ul><ul><li>Intrinsically Safe equipment… </li></ul></ul><ul><ul><li>Control of static electricity </li></ul></ul>
  16. 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. 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. 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. 19. GAS PREVENTION: CONTROL AND MONITORING OF PRESSURE 10 20 30 bars 0
  20. 20. PRESSURE: Change in gas pressure = cold with danger of freezing or Liquid formation GAS
  21. 21. GAS TOXICITY/ASPHIXIA: A gas can affect your health from simple weakness to… death !!! According to : Nature of gas Concentration Exposure time
  22. 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. 23. GASES CHEMICALS SMOKE GO ACROSS THE WIND TO ESCAPE WIND ESCAPE GAS ESCAPE WIND
  24. 24. CONDENSATES, CHEMICALS… <ul><li>DANGERS: </li></ul><ul><li>Flammability </li></ul><ul><li>Explosivity </li></ul><ul><li>Toxicity </li></ul>
  25. 25. CONDENSATES, CHEMICALS… <ul><li>IRRITANT ON SKIN </li></ul><ul><li>HARMFUL BY INHALATION </li></ul><ul><li>ASPHYXIANT </li></ul>USE PPE
  26. 26. <ul><li>IRRITANT ON SKIN </li></ul><ul><li>HARMFUL BY INHALATION </li></ul><ul><li>ASPHYXIANT </li></ul>USE ADAPTED PPE CONDENSATES, CHEMICALS…
  27. 27. <ul><li>To avoid accident / incident during SIMOPS you need: </li></ul><ul><li>Adequate Provision </li></ul><ul><li>Strict safety procedures and supervision </li></ul>
  28. 28. <ul><li>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. </li></ul><ul><li>Isolation Systems : Isolation system such as isolation valves and shutdown system to be installed and identified to operate in case of any leakage </li></ul>Specific provisions for SIMOPS
  29. 29. <ul><li>Venting : It is compulsory to carry out a thorough prior check to avoid any possible hazardous venting towards works areas . </li></ul><ul><li>Training to be conducted for all personnel involve in SIMOPS </li></ul><ul><li>Safety equipment such as Gas tester, Radios, etc to be check for operability </li></ul><ul><li>Personnel Access Control: Access between areas will be controlled by badges, manned security , the permit to work system </li></ul>
  30. 30. <ul><li>Alarm : All personnel should be familiar and trained with alarm tone . </li></ul><ul><li>Escape ways and Muster Points to be clearly marked and access free </li></ul><ul><li>Fire-fighting facilities to be ready </li></ul><ul><li>Clinic, Ambulance and Search and Rescue team to be ready and on-call </li></ul><ul><li>Security personnel to be trained in order to cooperate with HSE personnel in case of emergency and control the access to restricted areas </li></ul>
  31. 31. SIMOPS Safety <ul><li>General operating philosophy </li></ul><ul><ul><li>No Hot Permit to Work is allowed in the vicinity of operations inducing hazard of hydrocarbon release such as: Welding, Spray painting, etc. </li></ul></ul><ul><li>Access </li></ul><ul><ul><li>Only Authorized personnel to be allowed to enter SIMOPS area that will be restricted by fence and Tag System </li></ul></ul>
  32. 32. SIMOPS Safety <ul><li>Keeping as low as reasonably practical the number of persons on site during activities, Numbers must be controlled and monitor by Tag system </li></ul><ul><li>Full compliance of the activity with the permit to work </li></ul><ul><li>Pre-check of Plant and Equipment such as Vehicles, Electrical and power tools, IS communication devices, Anti spark equipment </li></ul>
  33. 33. SIMOPS Safety <ul><li>Personal protective equipment and escape equipment must be suitable for use within a sour (H2S ) service environment </li></ul><ul><li>Adequate Signs to be installed according to the nature of the job such as “No Smoking”, “Do not Touch”, etc </li></ul><ul><li>Continuous safety surveillance of the SIMOPS Area to check any anomaly. Report anomalies, near misses, incident or accident. </li></ul><ul><li>Restricting the number of heavy lifts over the production facilities </li></ul>
  34. 34. THANK YOU FOR YOUR ATTENTION

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