A relative permeability model of gas displacement by water and condensate and oil displacement by water and gas

Mikhail G. Lozhkin TyumenNIIgiprogaz Tyumen, Russian Federation LozhkinMG@tngg.ru
There are different relative permeability models to simulate an oil flow in porous medium at oil displacement by water and gas. These models allow to having an oil phase behavior in the presence of water and gas (e.g. Stone model). However, there are no similar models for gas displacement by water and retrograde condensate (it drops out from gas when the reservoir pressure decreases). Also there are no models generating relative permeability for fluids displacing oil or gas. The model proposed in the article allows generating relative permeability for gas, water and condensate at gas displacement by water and condensate and also for oil, gas and water at oil displacement by gas and water.
Materials and methods
OST 39-235-89 Oil. The method of determining the relative permeabilities in joint stationary filtration in laboratory conditions.
The proposed model allows determining the mobility of all three phases saturatinga productive reservoir. It can be applied for mathematical simulation of the hydrocarbon field’s development.
The proposed model allows performing high accuracy forecasting of the field development indicators and defining technical efficiency of various enhanced oil recovery methods.
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model gas water condensate oil relative permeability oil displacement gas displacement