Study On Preparation And Stabilizing Mechanism Of Dispersed Particle Gel Foam System

This paper mainly studies the foam gel as profile control agent,based on the property of foam gel,which is easy to access and control,the foam can produce Jia Min effect.This foam gel has both the advantages of foam and micron dispersed particle,which means that the foam gel agent is especially good at profile control.The foam comprehensive value is calculatered and the stablization mechanism is optimized.The selective preference is 0.3%foam agent+0.1%THSB.The best gas injection rate is 15 mL/min,gas-liquid ratio is 3:1.Affecting factors of foaming ability and stability such as salinity consistence,temperature is analysed.At 80?,10000 salinity circumstane,the system performs well.The system is evaluated and optimised according to jel time and endurance through laboratory experiment.Selectivity index is 0.59.The foam gel agent is better in many factors.The solution is gas-liquid injection.The best gas injection rate is 15 mL/min,gas-liquid ratio is 3:1.The system has sectional improvement capability.The interfacial tension of the system reaches the level of 10^-1mN·m^-1.Based on the above researches,the stabilization mechanism of foam gel is also considered.The factors of dispersed particle gel foam such as viscosity and zeta potential is calculatered,which have little affect on the system.By SEM,the adsorption of micron dispersed particle on the film of the foam is characterized.The adsorption of dispersed particle gel foam stablizes the film of the composite system.