Horizontal well critical rate correlations - Efros

Input(s)

$\rho_{o}$: Oil Density $(\mathrm{g} / \mathrm{cc})$

$\rho_{w}$: Water Density $(\mathrm{g} / \mathrm{cc})$

$y_{e}$: Half of Horizontal Well Spacing (ft)

$\mathrm{h}$: Oil Column Thickness (ft)

$\mu_{o}$: Oil Viscosity (cP)

$B_{o}$: Oil Formation Volume Factor (RB/STB)

$k_{h}$: Horizontal Permeability $(\mathrm{mD})$

L: Length of Reservoir ( $\mathrm{ft}$ )

Output(s)

$q_{o}$: Critical Oil Rate (STB/day)

Formula(s)

Reference(s)

Horizontal Well Technology, Joshi, Page: 286-295.