Crossflow index
Input(s)
\(N_{p c f}\): Oil Recovery from Layered System with Crossflow (STB)
\(N_{p n c f}\): Oil Recovery from Stratified System with No Crossflow (STB)
\(N_{p u}\): Oil Recovery from Uniform System with Average Permeability (STB)
Output(s)
CI: Crossflow Index (dimensionless)
Formula(s)
\[
C I=\frac{N_{p c f}-N_{p n c f}}{N_{p u}-N_{p n c f}}
\]
Reference(s)
Willhite, G.P. 1986. Waterflooding, Vol. 3. Richardson, Texas: Textbook Series, SPE, Chapter: 2, Page: 166.