miscible oil

Miscible displacement in porous media is, a fluid displacing another fluid, due to take place between the two phases diffusion, mass effect, so that the two fluids can dissolve each other without the presence of the interface.
Oil processing agent for the mechanism and the flooding agent in the formation of mixed phase under reservoir conditions, eliminating the interface, the capillary number becomes infinite potential, while the capillary force in porous media drops to zero, thereby reducing the due
Capillary effect in the capillary retention of oil traps, in theory, can make microscopic displacement efficiency of 100%. Due to the formation fracture pressure and other conditions, miscible displacement applies only oAPI severe relatively high light oil reservoirs, while the shallow,machine for pellets, dense layer, high-permeability layers, carbonate layers, have applications in sandstone experience, summed up, CO2 miscible flooding effect on poor water ① low permeability reservoir; ② completely depleted water drive sandstone reservoirs; ③ close to the limits of the economic exploitation of the deep, light oil reservoirs; ④ use gravity stable miscible CO2 mining of salt dome reservoir flooding mining is of great significance.