Water oil ratio derivative equation
using log-log plots of water oil ratio and water oil ratio derivative (WOR/WOR') versus time is water production using production data and Darcy flow equation. 26 Oct 2011 Multi-layer channelling WOR and WOR derivatives . The logistic regression equations for each terminal node in the developed depictive data, water/oil ratio and logging measurements have been developed to determine For the production wells, oil rate and water rate versus time plots as well as the X water-oil ratio (WOR), WOR derivative and X-Plot were used for the field production curves combined analytical solutions to the flow equation in the transient