RESEARCH PROGRESS ON THE EFFECT OF NANOPARTICLES ON FOAM STABILITY

As a fluid with a certain viscosity, foam is widely used to control gas channeling and reduce gas mobility in oil fields due to its simple process, low cost and stability in water, and has achieved good results. Through literature research and the research results of our team in recent years, the research status of CO2 foam is expounded from the direction of foam structure and foam decay. On this basis, the research progress of the effects of nanoparticles and external conditions on foam stability is introduced. Finally, the mechanism of nanoparticle stabilized foam was discussed by introducing the maximum desorption energy theory, the maximum capillary pressure theory and the interaction theory between particles. With the continuous development of foam flooding technology, the diversity and functionality of foam will continue to show, the development cost will be further reduced, and its application prospects in oil fields will become more and more broad.