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ABSTRACT
The purpose of this thesis is to present a new model for predicting the performance of horizontal well in a layered reservoir with crossflow. Several conditions related to this work were adopted such as the amount of pressure felt across the reservoir at t=0, flow across the outer, upper and lower boundaries of the reservoir and the magnitudes of normal flow velocities and pressure drops experienced in each layer. Russel’s expression was used on the cumulative flow rate from a cross-flow reservoir and then van Everdingen Hurst expression for pressure drop equation in a horizontal well. These correlations alongside Craig correlations for calculating the rate of injection were vital in simplifying expressions for the cumulative production rate, the minimum pressure needed for EOR, and the threshold injection rate in a layered reservoir with cross-flow. This gave rise to two establishments (1) the establishment of the relationship between the rate of production from a layered reservoir with cross-flow and the EOR parameters which equally inferred a direct relationship between the flow rate from the production layer and the pressure required for injection during EOR and also (2) the establishment of a link between the EOR requirements of a formation and the pressure drop equation. Correct well and reservoir data were not available for the verification of the model. However, some direct mathematical operations were carried out on the correlations to confirm their validity and viability.
