Composite profile control agent system as well as injection method and application thereof

The invention provides a composite profile control agent system as well as an injection method and application thereof. The composite profile control agent system comprises a first suspension system and a second suspension system, the first suspension system comprises polymer elastic micro spheres, the second suspension system comprises inorganic rigid particles, and the volume modulus of the inorganic rigid particles is 6-12 GPa. The composite profile control agent system comprises a first suspension liquid system with polymer elastic micro spheres and a second suspension liquid system with inorganic rigid particles, so that the composite profile control agent system has the advantages of the two systems, namely elasticity and rigidity are combined and complemented with each other, the composite profile control agent system can migrate to the deep part of a stratum, meanwhile, the plugging strength is high, the plugging effect on an extra-high permeable layer and a large pore channel is good (the plugging ra