FIELD: oil and gas industry.
SUBSTANCE: invention is related to the sphere of production of liquid and gaseous fluids from bore wells. mechanical slotted reperforation of wells, whereat the perforating gun is positioned at the initial point of the slotted interval in the casing pipe, two diametrically opposed longitudinal wells are rolled simultaneously by rolling discs rotated freely in their axes with plastic deformation of the casing pipe metal and further destruction of its integrity, opening of the crack and its edges flanging towards the borehole annulus under influence of leading edges of the rolling discs in the perforating gun, at that radial efforts of these discs indention to the pipe walls and round trips of the perforating gun are ensured by the ground power units, borehole annulus is treated behind the formed slots by water jets. The slots are rolled with the rate of the perforating gun running in and out that does not exceed two centimetres per second, while round trip movements of the running gun within the slotted interval are made with stops, during which at the first working stroke of the perforating gun the marks are made at its suspension over the well head and injection pressure is relieved in the string temporarily up to its value in the mode of standard washing.
EFFECT: positive effect is guaranteed for reliable hydrodynamic interconnection of the stratum and the well within the perforation interval.
2 cl, 3 dwg
