HEAT-RESISTANT GAS-GENERATING COMPOUND FOR HIGH-STRENGTH WELL ELEMENTS Russian patent published in 2004 - IPC

FIELD: mining industry.

SUBSTANCE: gas-generating compound is meant for forming cylindrical channel elements of high strength, it may be used in deep wells at temperatures up to +150°C. Heat-resistant gas-generating compound includes, in percents of mass: polydivinylisoprene rubber with end epoxy groups 7-9, transformer oil as plasticizer 5.6-6.5, aromatic amino acid 0.03-0.11, aromatic amino 0.01-0.06, burning stabilizer - titanium dicilicide 0.6-1.5, burning modifier 0.2-0.3, admixture for lowering ν coefficient in law of burning speed U=P^ν,- strontium carbonate 0.1-0.5, solidification catalyst 0.01-0.1, perchloric ammonium - the rest.

EFFECT: higher effectiveness of well treatment.

1 tbl