FIELD: oil and gas industry.
SUBSTANCE: device for perforating wells and gas-dynamic effect on formation comprises a body, a frame with seats, shaped charges, solid-propellant charges located inside and outside the body, a detonating cord. The inner solid-propellant charges are placed between the frame and the body in the form of strips enclosing the frame. Ratio of mass of internal solid fuel charges to the mass of shaped charges does not exceed 1:2.
EFFECT: increased efficiency of gas dynamic action on the formation.
1 dwg
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