Liquid chemical plugging agent, easy to pump, good stability,pressure difference activation, only solidifies at the leakage point, while other plugging agents remain liquid and can be washed out by washing the well, without forming large volume solidification, suitable for complex working conditions, and will not cause wellbore safety issues.Short construction period, fast plugging, and filling of the well section where the leakage point is located can achieve repair. lt only takes 3-4 days from construction to qualified pressure testing.