SYSTEM AND METHOD FOR HYDRAULIC FRACTURING OF OIL AND GAS RESERVOIRS

摘要

The invention discloses a system and a method for hydraulic reservoir fracturing. The system may comprise a base pipe comprising a first hydraulic fracturing port, a port for insertion and accommodation of a stop ball, said stop ball being located partially in the cavity of said base pipe; a sliding device comprising a first sleeve disposed around said base pipe and having a second hydraulic fracturing port, said first sleeve having a pocket on its inner surface. Said first sleeve is movable to a first position where said pocket is located above the surface of said base pipe that does not include the port for the stop ball insertion and accommodation, which prevents said stop ball from leaving said base pipe cavity, and to a second position where said pocket is located above said stop ball insertion and accommodation port, which provides the possibility of the stop ball leaving said base pipe cavity and entering said pocket.