FIELD: oil and gas extracting industry. SUBSTANCE: device has body in form of hollow cylinder having a waterproof cover with fusible lock in the bottom. Said lock can be melted by sending an electric signal. Also fuel tank is provided. Fuel tank is heat-insulated and placed in the upper part of body. Fuel self-decomposes on oxygen and water in presence of catalytically active inorganic compounds and also is under high excessive pressure of inert gas. Extrusion system includes a pipe for pumping fuel into the well and an electric valve, controlled by a cyclogram. EFFECT: increased effectiveness and reliability of device. 2 cl, 1 dwg
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