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PETROLEUM SYSTEM - Coggle Diagram

- - - - dead materials transform into hydrocarbon in high temperature
      - offshore and onshore
      - (contain dead plants and animals for a millions year ago)
    - - adequate temperature
      - presence of organic matter rich enough to yield hydrocarbons
      - sufficient time to bring the source rock to maturity
      - Pressure and the presence of bacteria and catalysts also affect generation
  - - - reservoir rocks
        
        permeable
        
        porous
    - - water (heavy) - bottom
      - oil (light) - middle
      - gas (lighter) - top
  - - - cooking process (maturation) - maturation when sediment is mature
      - fossil organic matter turn into oil and gas under particular temperature and pressure
- - - - depression is a result from compression or extension of tectonic plate
      - very thick sedimentary sequence