Waterflooding in Niger Delta Oil Reservoir Systems: Concept and Analysis

Abstract

This research work looked at the concept and analysis of waterflooding as a means of enhancing oil production at commercial scale from oil reservoirs in the Niger Delta, south of Nigeria. It covers the linear flow profile of water injection through an input end (well 1) and production of oil and water at the output end (well 2). Relying on some basic assumptions, the researchers looked critically at solutions derived to show the relationship between relative permeability ratio and water saturations. This was inputted as data for performance prediction of waterflooding scheme. The researchers also looked at the fractional flow equations/ curves and fractional advance formulas/ curves with applicable sketches, illustrations, and graphs. We also evaluated the effect of waterflooding rates/ permeability ordering in Niger Delta oil reservoirs, the effectiveness of waterflooding scheme in these reservoirs, fractional flow of water during the waterflooding processes, the frontal advancement during waterflooding exercise, and the sweep/displacement efficiencies of the whole process.

Waterflooding, Buckley Leverette, Niger Delta, Enhanced oil recovery, Water injection, Fractional flow equations, Frontal advance equations, Oil reservoirs