A double-layer vertical heterogeneous plate model of core that can monitor saturation field was designed and fabricated. The remaining oil distribution in the model was quantitatively described with the resistivity method. Through simulation of the water flooding，polymer flooding，and gel profile control experiments of thick positive-rhythm oil layers，the remaining oil distribution before and after gel profile control was tested，and the displacement efficiency and remaining oil distribution characteristics of the profile control of models in different injection schemes and displacement stages were obtained. According to the experimental results，the larger permeability ratio led to the more rich remaining oil and the bigger increase in swept volume in low-permeability layer after profile control. A greater permeability ratio also resulted in the more evident preferential migration passage of water flow in the high-permeability layer，larger swept volume，and better displacement efficiency. The different water injection volumes received almost the same development effects with little improvement on swept volume in the low-permeability layer. A smaller polymer injection volume and earlier profile control brought about higher enhanced oil recovery（EOR）. The more profile control agent led to larger plugging radius of the highpermeability layer，more increment of swept volume in the low-permeability layer，more percentage of producing remaining oil，and longer distance that the oil-water front advances to the production well.