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Reservoir drive mechanisms (view source)
Revision as of 22:27, 17 December 2015
, 22:27, 17 December 2015no edit summary
==Gravity drainage==
==Gravity drainage==
In gravity drainage, oil drains downward through a reservoir under the influence of gravity. This requires high vertical permeability or steeply dipping beds and thus is common in fractured reservoirs. Efficiency can be surprisingly high (75%+), especially where beds have steep dip, the oil has low [[viscosity]], and the oil draining from the top of the column is replaced by exsolved gas.
In gravity drainage, oil drains downward through a reservoir under the influence of gravity. This requires high vertical permeability or steeply dipping beds and thus is common in fractured reservoirs. Efficiency can be surprisingly high (75%+), especially where beds have steep [[dip]], the oil has low [[viscosity]], and the oil draining from the top of the column is replaced by exsolved gas.
==Combination==
==Combination==