FIELD: oil and gas production. SUBSTANCE: granules with alkali metal designed for injection into well in the form of suspension are manufactured by adding weighting agent particles to molten alkali metal, said particles further serving as crystallization sites during cooling down period at stirring. Granules are inserted into capsules with various parameters. Use of such granules allows alkali metal to be brought into contact with water and thereby to ensure optimal mass exchange of thermochemical reaction all over asphalt-tar and paraffin-hydrate deposit spread zone and achieve maximum efficiency. EFFECT: simplified granule preparation technology and increased deposit removal efficiency. 16 cl
