Curable working fluid and solidification waiting and plugging method of curable working fluid system

The invention discloses a curable working fluid and a curing-waiting plugging method of a curable working fluid system, the curable working fluid comprises water and a mixture, the mixture comprises cement, 0-80% of a lightening agent, 10-20% of a reinforcing material, 1-20% of micro-silicon, 1-2% of an early strength agent, 1-3% of a fluid loss agent, 1-2% of a dispersant and 1-4% of fiber; and the percentage in the curable working solution is the percentage of each component in the mass of the cement. According to the curable working fluid provided by the embodiment of the invention, the prepared density range is 1.10-1.95 g/cm < 3 >, the compressive strength is greater than 14 MPa in 24 h and greater than 24 MPa in 48 h, compared with the traditional cement paste, the curable working fluid can be prepared with lower density, and compared with the traditional way of plugging a leakage layer by using the cement paste with the conventional density, the curable working fluid has the advantages that the cost is