To solve the problem of the uneven injection of sand consolidating agents in strong heterogeneous reservoir，a water-soluble low-viscosity surfactant sand consolidation system was prepared，and the injection performance and the influencing factors of the sand consolidation performance of the system were investigated. A fine layered chemical sand control technology was carried out based on the intralayer low viscosity active agent sand consolidation and interlayer selective separate-layer sand control. Indoor tests showed that the low viscosity active sand consolidation system was characterized by the good injectability，low damage and high consolidation strength. The viscosity of the sand consolidation system with 10% modified epoxy resin and 1%ethylenediamine content was 4.5 mPa s，exhibiting good flowability. The sand consolidation system was suitable for the reservoir temperature of 50—90 ℃. The permeability of the cemented core formed by the sand consolidation system and quartz sand was higher than 1 μm²，and the compressive strength was higher than 5 MPa，and it had good dynamic erosion resistance. The selective seperate-layer chemical sand control string was complemented based on the injection parameter optimization，which could implement the selective injection of sand consolidation agents. The fine layered chemical sand control performed well in field tests. After a cumulative production of 2700 days，the liquid production of the test well was 52.4 m³/d，and the oil production was 5.3 t/d. The effective period had been significantly improved. It is of great significance to prolong the lifespan and increase the efficiency of sand control wells in complex fault-block reservoir.