Publications

This research is the innovation of the experimental studies to use a local biopolymer for increasing brine viscosity and lowering the mobility ratio. In this experimental study, utilizing the locally sourced biopolymer, starch from seeds of kluwih (Artocarpus camansi). This typical fruit from Java is plentiful, cost effective, non-toxic, and environmentally friendly. Species of kluwih have most seeds from its genus. Seeds of kluwih that not primary food have high starch content is capable to increase brines viscosity and lowering its mobility ratio so that it can improve the efficiency of water flooding and sweep efficiency. Seeds of kluwih are extracted by the brown enzyme removal method to get its starch content. The starch that has been obtained is dissolved. Then, the performance of this starch solution is compared to the other polymers by polymer screening procedure and core flooding experiment in the laboratory. Core samples are prepared in this experiment by saturation of brine and oil previously. As control samples, only brine flooding is done on core samples. For other core samples are done brine flood, then each is used for polymer flood by kluwih, Xanthan Gum, and Guar Gum which the results are compared to get the optimum polymer. From polymer screening procedure, starch from kluwih is suitable for characteristics of fluid and X-field core, shown by test results of rheology and compatibility of kluwih. From this experiment, conclude that kluwih can be used in polymer flooding because improve the recovery factor of oil. Utilization seeds of kluwih as a local biopolymer for EOR (Enhanced Oil Recovery) other than increase oil production also not have a negative impact on the environment. Utilization of kluwih in bulk will increase the purchase price so into a sustainable new agricultural opportunity and advance community economics.