Surfactant Polymer flooding Enhanced Oil Recovery: slug scheme affected oil recovery

Surfactant Polymer (SP) flooding is a chemical Enhanced Oil Recovery (EOR) method involves the injection of surfactants and polymer into the reservoir to increase oil recovery. However, problem such as performance aggregation, adsorption and dissemination in porous media can be arised depending on the chemical involved. The effectiveness of industrial water treatment surfactant is studied as potential materials for EOR process alongside the conventional polymer while identifying the effect of different injection scheme of surfactant and polymer on oil recovery. Three different scheme implementing surfactant polymer flooding has been carried out. From BK80XG formulation screening result, 0.3% of Sulfocat BK80 concentration and 400 ppm Xanthan Gum concentration is appear to be the optimum parameter for sandpack flooding experiment. The result of sandpack flooding shows that Sulfocat BK80 is a good potential material to be use in chemical EOR method as it increase the performance of oil recovery. From three different scheme implemented during surfactant polymer flooding, Scheme C in which the sandpack has been soaked with BK80 for 24 hours and then being flooded with Xanthan Gum flooding is found to give the highest incremental of oil recovery which is 4.88% compared to other schemes