Capacity ratio of a hydraulically fractured surface

Input(s)

$k_{f}$: Fracture Permeability $(\mathrm{mD})$

$k$ : Average Formation Permeability $(\mathrm{mD})$

$h$ : Formation Thickness (ft)

$W$ : Fracture Thickness (ft)

Output(s)

$c_{f}$: Cumulative Present Value of Production ($)

Formula(s)

$$c_{f}=\frac{k_{f} \cdot W}{k \cdot h}$$

Reference(s)

Saydam, T., (1967). Principles of Hydraulic Fracturing, ARI Publishing Co., Page: 92.