Applicability Evaluation of A Natural Surfactant on the Wettability Alteration of Oil Reservoirs’ Rocks

Surfactant flooding is a suggested enhanced oil recovery (eor) method in the oil reservoir that wettability alteration mechanism is effective# a new natural-based surfactant derived from acanthophyllum tree trunk (chuback) was proposed here to change the wettability of rock faces to water wet for more oil production purpose in the oil reservoir# the results of oil and water contact angle measurement proved that the proposed surfactant has this ability to be used as a surfactant in porous media# the response surface method was also utilized to investigate the effect of surfactant concentration, salt concentration and salt types on the goal responses, water and oil contact angle# according to the results, the optimum chuback concentration is around 0#75 wt%#