Abstract
Numerical basin modeling provides a strategy for optimizing exploration in frontier areas and evaluating new plays within well-explored basins. Ideally, a basin simulator should span the entire process of source-rock burial, hydrocarbon migration into a potential trap and assessment of trap integrity throughout the evolution of a basin. This paper deals with the migration of hydrocarbons. It is generally accepted that hydrocarbons migrate in separate phases from water, even if part of the light hydrocarbons that may dissolve and diffuse in water. The main driving forces for hydrocarbon migration are buoyancy, capillary forces and pressure gradient. The experience gained through case studies shows that one of the main challenges for the next years will be the simulation of migration in 31) complex geometry, including displacements of blocks along faults.
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