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→Methods for determining fluid contacts
| Hydrodynamic tilt
| Hydrodynamic tilt
| Moving water at the reservoir interval
| Moving water at the reservoir interval
| Presence of hydrodynamic conditions Fluid contact dip angles and directions are constant over the field despite facies changes. Oil-water contact has a steeper dip than the gas contacts, but all contacts dip in the same direction Significant dip to gas contacts are rare
| Presence of hydrodynamic conditions Fluid contact [[dip]] angles and directions are constant over the field despite facies changes. Oil-water contact has a steeper dip than the gas contacts, but all contacts dip in the same direction Significant dip to gas contacts are rare
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| Reservoir heterogeneity
| Reservoir heterogeneity