formation treatment zone 6 a solid or liquid suspension composition on the base of metal or metalloid hydride is used as the combustion initiator salt hydrides such as alkaline metal boranes libh 4 nabh 4 kbh 4 that can be in both the solid and suspension state can be used in the last case suspension solutions of alkaline metal boranes on the base of organic solvents diethyl ether c 4 h 10 o or methyl alcohol ch 3 oh may be used while the borane and dissolvent are each 5 95 percent of total mass alkaline metal boranes being in the solid state 75 95 fraction of total mass are found in the composition together with alkalis naoh or koh 5 25 percent of total mass in the preparatory phase the alkalis stabilize boranes in moist environment and in the production phase they augment the total heat effect at the expense of an exothermal hydrolysis reaction which provides for transferring the borane to the mode of thermal dissociation t 400 u00b0 c a blend of alkaline metal borane and solid isopropylcarborane 5 40 percent of total mass may be also used as the solid combustion initiator the machinery of the combustion initiator delivery avoids the expensive borehole cable which is subject to breaks during detonation of the combustion initiator container 5 and is likely to cause an emergency after falling to the borehole bottom an shown in the figure both the solid and the liquid combustion initiator can be delivered in a hermetic container 5 with an industrial hoist 7 the detonation of the combustion initiator container 5 is carried out by an explosion of a backoff shot mounted along the entire container length the explosion is initiated during the sinking of the container 5 by.