Surfactant polymer flooding EOR: slug scheme affected oil recovery: article

Surfactant Polymer (SP) flooding is a chemical EOR method involves the injection of surfactants and polymer into the reservoir to enhance oil recovery. However, problem such as performance aggregation, adsorption and dissemination in porous media can be arises depend 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 BK80-XG formulation 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 as it increase the performance of oil recovery and Scheme C which is soaking the sandpack with Sulfocat BK80 followed by Xantan Gum flooding is found to give the highest incremental of oil recovery compared to other schemes.