Flooding With Biopolymer From Microbes Derived From Mushroom and Cabbage to Enhance Sweep Efficiency in Enhanced Oil Recovery

摘要

In this study, local isolated Xanthomonas campestries has been used from local cabbage for xanthan gum production via fermentation in shake flask. The product was then recovered with isopropanol and dried. Meanwhile, for extraction and purification of mushroom polysaccharide, we use dead edible mushroom has been used. Polysaccharide mushroom was extracted with NaOH solutions at 100°C for 24 hrs. Next, polysaccharide was precipitated separately by the addition of ethanol and the resulting polysaccharide extract were dissolved in distilled water. In the present study, different type of biopolymers was used in order to determine the oil recovery with different concentrations. Biopolymers used in this experiment are xanthan gum and mushroom polysaccharide. The properties of both biopolymers were tested for 3000 ppm and 10000 ppm of concentration. The results shown higher oil recovery factor obtained from the mushroom polysaccharide, which is 84.14%. Meanwhile, the highest recovery obtained by xanthan is about 67.44% only. As a conclusion, increasing polymer concentration will increase the oil recovery factor.