Method for reducing inter-well crack interference in fracturing process

The invention provides a method for reducing inter-well crack interference in the fracturing process. The method is suitable for a reservoir of which the porosity is smaller than 6% and the matrix permeability is smaller than 10 mD and comprises the steps of temporary blocking, temporary blocking effect monitoring and microseismic monitoring in the drilling fracturing pumping process. The temporary blocking step comprises the substeps that 500-2,000 kg of solid particulates with the particle size of 109-212 micrometers, 70-120 kg of a temporary blocking agent with the particle size of 380-830 micrometers and 5-10 m of fracturing liquid are mixed to form mixed liquid, the mixed liquid is pumped, and the displacement is controlled to be 10-15 m /min. The temporary blocking effect monitoring step comprises the substeps that after the mixed liquid is pumped, slickwater is pumped, and it is judged that temporary blocking is achieved when it is monitored that the pressure at the wellhead generates positive puls