This study examined the influence of eleven reservoir variables on the recovery factor of an oil rim reservoir under water flooding. Data was collected from various oil rim reservoirs in the Niger Delta to obtain a range of values for these variables. The extent to which these reservoir variables affect recovery under water flooding was evaluated using Design Expert (DOE++), which facilitated the planning of fourteen different experiments. A linear screening of these variables, employing Placket-Burman Design of Experiment, helped identify the significant ones. The Eclipse dynamic simulator was then used to run simulations, initially creating a generic oil rim model that was subsequently refined to align with the specific simulation runs, from which recovery factors for water flooding processes were obtained. Correlation analysis was conducted on these parameters to determine the most significant factor affecting recovery, utilizing the Pearson Correlation, the analysis of these eleven parameters revealed that Height below Gas Oil Contact (HGOC) is the principal variable influencing recovery in oil rims subjected to water flooding, followed by the oil rim thickness.
Keywords: Pearson correlation coefficient, influencing parameters, oil rim, recovery factor, waterflooding
