Experimental Study On Dynamic Relationship Between Resistivity And Oil Saturation Of Natural Core Flooding In Block X

ASP flooding technology has developed rapidly in China and field tests of ASP flooding have been carried out in many oilfields.Due to the low amount of surfactant,high oil displacement efficiency and greatly reduced cost of surfactant displacement,the ASP flooding has been shown to be more than 20% higher than water flooding,so the ASP flooding technology has a broad development prospect.In order to find out after asp flooding mechanism and characteristics of the reservoir of the remaining oil distribution,oil field in asp flooding further guidance after fine exploration of remaining oil,this paper use X oilfield asp flooding pilot area of coring well core,by means of water flooding,polymer flooding and asp flooding reservoir under the conditions of different displacement of conductive mechanism,set up after asp flooding reservoir resistivity interpretation model,through the analysis of water flooding,polymer flooding and asp flooding litho-electric experiment,analysis of three kinds of displacement under the condition of rock electricity law and after asp flooding the relationship between resistivity and oil saturation,the residual oil distribution law.Using COMSOL software for numerical simulation of the core resistivity change trend of water saturation is obtained and the change of oil saturation curve,combined with physical simulation experiment,the exact chart of the remaining oil distribution,further defined the displacement mechanism of asp flooding,the oilfield development adjustment and remaining oil production has a certain guiding role.