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PETROLEUM SYSTEM - Coggle Diagram
PETROLEUM SYSTEM
MIGRATION
controlled by the physical properties of the
sedimentary strata the oil is moving through
- Permeability
- Porosity
PRIMARY MIGRATION
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The distance of primary migration in fine-rained sediments is usually short only as far as needed needed to
reach a permeable bed
transport mechanisms are believed to carry most of the HC
– Diffusion
– Molecular solution oil-phase and gas- phase migration
SECONDARY MIGRATION
Driven by buoyancy, limited by permeability & fluid viscosity
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petroleum occurs as a result of buoyant and hydrodynamic processes moving oil in high saturation zones within permeable carrier beds
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TERTIARY MIGRATION
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migration includes leakage, seepage, dissipation, and alteration of petroleum as it reaches the Earth's surface
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