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PETROLEUM SYSTEM, MIGRATION, PETROLEUM SYSTEM - Coggle Diagram
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MIGRATION
Migration Stages
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Secondary Migration—Migration from source to reservoir along a simple or complex carrier system. Includes migration within the reservoir rock itself.
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Possibilites of physical, chemical and bacterial alterations with water, minerals and gases.
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Tertiary Migration—Migration to the surface, either from a reservoir or source rock. Also called dismigration.
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Remigration—Migration from one reservoir position through an intervening section into another reservoir position in the same or a different reservoir
Principle of Migration
Hydrocarbons migrate as a separate phase, primarily due to buoyancy.
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The properties of reservoirs and carrier beds control the rate of migration and thus the specific direction of the bulk of hydrocarbons under seals.
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The migration process does not significantly affect the overall geochemistry of the migrated hydrocarbons.
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