Buckley-Leverett Fractional Flow Calculator
Reservoir engineering & secondary recovery: Calculate two-phase water fractional flow ($f_w$), Welge shock front saturation ($S_{wf}$), average saturation at breakthrough ($\bar{S}_{w,bt}$), and recovery factor ($RF$).
Corey Endpoints & Fluid Viscosities
Water rel-perm at residual oil
Oil rel-perm at connate water
Shock Front & Recovery Efficiency
Shock Front Saturation S_wf:
--
fraction (Welge point)
Recovery Factor at BT:
--
% OOIP at breakthrough
Avg Saturation S̄_w,bt:
--
at breakthrough
Shock Fractional f_wf:
--
water cut at front
Mobility Ratio M:
--
endpoint mobility
Displacement Sweep Performance
Shock Front Velocity (df_w/dS_w)|_f:
--
Pore Volumes Injected at BT (Q_i,bt):
-- PVI
Displacement Efficiency:
--
Recommended Tools & Equipment
Tested hardware and components for high reliability
100% Free Tool
Zero Sign-Up