FIELD: mining.
SUBSTANCE: gas generator consists of restricted and non-restricted tubular charges from solid fuel, which are arranged on logging cable, charge ignition system located in central channel of restricted tubular charges and including ignition device of detonation action, which consists of blasting cartridge and detonating cord, and device of flame action in the form of an electrical igniter connected in-series with blasting cartridge and installed under ignition device of detonation action at the specified distance therefrom. At that, lower edge of generator is tightly closed with a plug, and cable has fireproof coating throughout the length providing its being protected against thermal action of combustion products of charges.
EFFECT: gas generator allows creating multiple and extended cracks in coal bed in conditions of low hydrostatic pressure in the well owing to increase of time of gas hydraulic pulse impact on coal bed, which increases its gas recovery.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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