METHOD FOR PERFORMING A GAS-DYNAMIC TREATMENT OF WELL AND DEVICE FOR REALIZATION OF SAID METHOD Russian patent published in 2007 - IPC E21B43/263 

FIELD: oil extractive industry.

SUBSTANCE: method includes assembly of unpackaged section chare by letting composite bar through central channel of charge sections, with configuration of central channel with developed surface, contracting and packing of charge sections tightly with each other, positioning of lower charge sections of disperser for draining gas stream, produced during combustion of charge, with through apertures, lowering and installing in treatment interval, combustion of charge sections, manufactured from compositions, ensuring combustion in water, water-oil and acidic environment, accompanied by temperature increase and production of hot gunpowder gases. In accordance to invention leakage of well column and previously opened formations is isolated, for which purpose an additional stream disperser is placed above charge sections. Isolating substance with melting temperature below charge combustion temperature is injected into central channel of charge and into hollows of dispersers, adjacent to charge sections. Hollows of dispersers are additionally filled with viscous inert substance so that in case of ignition of charge sections and heightened pressure viscous substance first exits the disperser and created a closed volume in the well in treatment interval. In accordance to method, device is provided with additional disperser for draining gas flow, containing an isolating substance.

EFFECT: expanded area of possible application of gas-hydraulic treatment with usage of gunpowder charges, prevented leakage of casing column of wells, sleeve connections, previously opened formations.

2 cl