Advanced Water Drive Analytical Model

The water drive model is a cylindrical reservoir with a concentrically cylindrical aquifer. The outer zone represents the aquifer and can have any radius (provided that it is larger than the reservoir radius).

The water drive model is an analytical radial composite reservoir model. The reservoir is represented by the inner zone, and is given a radius of "r_e". The outer zone represents the aquifer, with a radius of "r_aq". The aquifer radius may be set to any value greater than "r_e".

The model accounts for the mobility difference between the reservoir and aquifer by giving you the option to enter a mobility ratio (M). This is defined as the ratio of the aquifer mobility to that of the reservoir.