A laboratory and economic study on Badri crude oil production by polymer, surfactant and surfactant/polymer flooding from a horizontal well in a scaled five-spot sandpacked model was conducted. Crude oil from Gupco* Badri Field was used in the displacement tests. The grain size distributions of the used sand are similar to those of the Badri formation. Surfactant and polymer slug concentrations were 1.0% by weight and 500 PPM, respectively. Physical properties of the surfactant and polymer solutions were experimentally determined to select those most suited for the displacement runs. The suitability of the enhanced oil recovery predictive models**, developed by the department of energy (U.S.A), to predict the experimental data and assess the feasibility of oil recovery by chemical flooding was investigated. Results show that the maximum oil recovery is obtained from the sandpack model by polymer flooding with a slug size equal to 30% of the pore volume. A good agreement exists between the experimental data and values calculated from the software. The economic study revealed the feasibility of oil recovery from Badri oil field by polymer flooding through a horizontal well configuration.

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