Abstract: A slot-perforating system for an abrasive-hydro-slotting of a near well-bore zone for establishing an inflow path between a borehole and a formation has an adaptor connectable to a tubing; a hydraulic block connected to the adaptor for regulating a speed of operation; a perforator providing a hydro-slotting, and a return block located between the hydraulic block and the perforator and returning the perforator an initial upper position.