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Abstract
Waterflooding is one of the most successful and widely used techniques to increase oil recovery. This technique is mostly applied to the light and medium oil type once the reservoir's natural drive mechanism is exhausted or the economic limit of the project has been achieved. Several secondary predictions have been developed and are available in the literature. Most of them utilize mathematical correlations and are developed to solve simple problems. Others are for complex problems and depend on numerical simulations or disruptive techniques like artificial intelligence. The effect of oil and water viscosity, dip angle and water injection rate on waterflooding performance using the classical frontal displacement theory developed by Buckley-Leverett has been employed in this study. The horizontal approach is used as base study and two different types of oil (2 cp viscosity and 16 cp) were used. The results show the advance of the injected waterfront are faster on heavy oil than in light oil reservoirs. However, in this case, a significant amount of mobile oil remains behind the waterfront. The cumulative oil production from the light oil at the end of breakthrough is 53% which is 13 % more than that of the heavy oil.
References
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