Infinitely graded full-diameter fracturing sleeve assembly system

The invention provides an infinitely graded full-diameter fracturing sleeve assembly system. The system includes a plurality of sub-fracking sleeves connected in series through a pipeline and corresponding to a plurality of opening mechanisms in a one-to-one manner. Each sub-fracking sleeve includes an upper joint, a lower joint, an inner sleeve, a shear connector and a positioning groove, whereinthe positioning groove is formed on the inner peripheral wall of the upper joint and has a predetermined length in the up-down direction; and the length of the positioning groove of a prior one of every two adjacent sub-fracking sleeves is smaller than the length of the positioning groove of a next one of the every two adjacent sub-fracking sleeves, and the length of the positioning elastic member of each opening mechanism corresponds to the length of the positioning groove of the unique sub-fracturing slide sleeve. The infinitely graded full-diameter fracturing sleeve assembly system has theadvantages that after the