Pressure compartments
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Pressure compartments are found in basins worldwide. A pressure compartment is a volume of rock, all sides of which are sealed such that the fluid within the compartment is isolated from the surrounding normal pressure regime. Pressure compartments affect the movement of fluids that control the migration and accumulation of petroleum and the diagenesis of reservoirs and seals. This section discusses pressure compartments, methods for predicting their presence, and their importance for petroleum exploration.