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 The Thermal/Water Front Data is
used to calculate the thermal front, waterfront, ellipsoidal, waterflood
shape, oil displacement, and leakoff characteristics.
Injected Fluid
The injected fluid represents the properties of the fracturing fluid.
For waterflood applications, the user should specify Water. The database
associated with the injected fluid is used in the calculations of the
thermal front.
Reservoir Lithology
The Reservoir Lithology represents the primary rock type in the region
to be fractured.
In-situ Fluid
The In-situ Fluid is the formation fluid that occupies the pores.
Typically, this fluid is oil.
Oil Displacement Factor
The Oil Displacement Factor is the fraction of oil that is displaced by
the water. This factor is directly related to the irreducible oil
saturation (i.e., Oil Displacement Factor = 1 - irreducible oil
saturation).
Waterfront Aspect Ratio
This is the limiting aspect ratio of the minor to major axes of the
ellipsoidal thermal and waterflood regions. The minor axis is perpendicular
to the fracture plane and the major axis is in the fracture plane.
At early times, this aspect ratio is very large since it represents the
fracture length divided by the leakoff distance perpendicular to the
fracture face.
Formation Porosity
The formation porosity is the equivalent value over the fracture height
used for calculating the thermal and waterflood regions.
Net Formation Height
The Net Formation Height is used in the mass conservation equations to
calculate the water and thermal fronts. This height is also used for
calculating the leakoff velocity for the Steady-State Filtration Law
option.
Equivalent Drainage Radius
The equivalent drainage radius is used to calculate the steady-state
leakoff velocity. The drainage radius is only used if the Filtration Law
option is set to Steady-State.
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