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PETROLEUM SYSTEM: RESERVOIR, SEAL & TRAP - Coggle Diagram
PETROLEUM SYSTEM: RESERVOIR, SEAL & TRAP
CHARACTERISTIC OF SEAL & TRAP
Seal
Shale layer
Anhydrire
Salt
Mudstone
Shale
Sealing Efficiency
Lateral extent and continuity
Permeability
Thickness
Presence or absence of faults and fractures
Trap
Oil & gas barred from further movement
Stratigraphic Traps
Unconformities
Pinchouts
Reef
Structural Traps
Faulting
Folding
Drapes
Size
Shape
Colour
Combination
CHARACTERISTIC OF RESERVOIR
Rock containing porosity, permeability, sufficient hydrocarbon accumulation & a sealing mechanism to form a reservoir
Permeability
Grain Shape
Grain Sorting
Fluid Moving
Porosity
Grain Sorting
Grain Shape
Initial reservoir pressure
Initial reservoir temperature
Initial oil saturation
Oil gravity
Oil viscosity at reservoir conditions
Effectiveness of cover rock
Lithology
Ductility
Lateral contunuity
Burial depth
Thickness