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CHARACTERISTIC - Coggle Diagram

- - - - overlain by effective seal
      - maintain an efficient water under all condition flows
      - structural trap
        
        anticline
        
        fault
        
        strati structure
        
        pinchout
        
        unconformity
        
        reef
  - - - effective- smaller size like shale
  - - - difficult to fracture within T and P
- - - - textural, sizes and shape of grain size
        
        arrangement system
        
        high sphericity of grain tend to pack to make min pore space
        
        increase angularity
        
        the more uniform of grain sized, increases the great proper of void spaces
        
        more compaction of grain size will decrease the volume of void spaces
      - ability of fluid to passing through
      - effective permeability
        
        por. med occupied more than one fluid
      - absolute permeability
        
        por. med completely saturated by single fluid
    - - inter particle
      - intra particle
    - - dissolution
      - fracture
    - - caternary
      - cul-de-sac
      - closed pore