Design of 3D visualization flooding model and experimental recovery test of the alkaline flooding for Al fula crude oil- Sudan

Abstract

Core flood experiment is actually one of the methods that used to simulate the reservoir system, measure its properties, and predict the production performance. Core flood 3D visualization model has added the characterization of simulating the process of oil recovery through visual way better than the conventional core flood models. A designing of core flood 3D visualization model has been made in this research. Fula oil field is located in west Kordofan, and has an acidity heavy crude oil, our experiments have proven that applying Alkaline flooding method could achieve effective production goals, so as a screening method it is possible to apply Alkaline flooding method to enhance the oil recovery. Alkaline flooding with Fula crude oil has been experienced by the designed core flood model, the results have shown that the model succeeded to conduct the experiment through visual way. A water flood test has been run by injecting water with flow rate of 20 ml per minute for 125 minutes, the result has shown that water flooding has recovered 15.2 ml. Alkali agent (Na2Co3) with concentration of 1% has been injected, continuously into the core flood model with the same flow rate for 250 minutes, the result has shown that Na2Co3 has recovered 97.5 ml of the crude oil. Alkali agent (NaOH) with concentration of 1% has been injected in the core flood for 200 minutes, the result has shown that NaOH has recovered 168.25 ml of the crude oil. The total recovery of alkaline flooding process was 280.95 ml.